CINXE.COM

<!DOCTYPE html> <html lang="en-US"> <head > <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1" /> <meta name='robots' content='index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1' />  <title>PCR Primer Design Tips - Behind the Bench</title> <link rel="canonical" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/" /> <meta property="og:locale" content="en_US" /> <meta property="og:type" content="article" /> <meta property="og:title" content="PCR Primer Design Tips" /> <meta property="og:description" content="Designing oligonucleotides and making sure that you have the right parameters for your oligo is an important step in securing results, especially in PCR Primer Design. In order to achieve successful DNA amplification, it’s important to start off with the right primer. What makes a good primer? Here are some guidelines for designing your PCR" /> <meta property="og:url" content="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/" /> <meta property="og:site_name" content="Behind the Bench" /> <meta property="article:publisher" content="https://www.facebook.com/thermofisher" /> <meta property="article:published_time" content="2019-09-25T23:02:49+00:00" /> <meta property="article:modified_time" content="2021-03-18T10:33:34+00:00" /> <meta property="og:image" content="https://www.thermofisher.com/blog/behindthebench/wp-content/uploads/sites/9/2019/09/PCR-Primer-Design.jpg" /> <meta property="og:image:width" content="1286" /> <meta property="og:image:height" content="726" /> <meta property="og:image:type" content="image/jpeg" /> <meta name="author" content="Behind The Bench Staff" /> <meta name="twitter:card" content="summary_large_image" /> <meta name="twitter:creator" content="@thermofisher" /> <meta name="twitter:site" content="@thermofisher" /> <meta name="twitter:label1" content="Written by" /> <meta name="twitter:data1" content="Behind The Bench Staff" /> <meta name="twitter:label2" content="Est. reading time" /> <meta name="twitter:data2" content="2 minutes" /> <script type="application/ld+json" class="yoast-schema-graph">{"@context":"https://schema.org","@graph":[{"@type":"WebPage","@id":"https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/","url":"https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/","name":"PCR Primer Design Tips - Behind the Bench","isPartOf":{"@id":"https://www.thermofisher.com/blog/behindthebench/#website"},"primaryImageOfPage":{"@id":"https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#primaryimage"},"image":{"@id":"https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#primaryimage"},"thumbnailUrl":"https://www.thermofisher.com/blog/behindthebench/wp-content/uploads/sites/9/2019/09/PCR-Primer-Design.jpg","datePublished":"2019-09-25T23:02:49+00:00","dateModified":"2021-03-18T10:33:34+00:00","author":{"@id":"https://www.thermofisher.com/blog/behindthebench/#/schema/person/9bbb2d67616274d3d4a21a584f7f4a0c"},"breadcrumb":{"@id":"https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#primaryimage","url":"https://www.thermofisher.com/blog/behindthebench/wp-content/uploads/sites/9/2019/09/PCR-Primer-Design.jpg","contentUrl":"https://www.thermofisher.com/blog/behindthebench/wp-content/uploads/sites/9/2019/09/PCR-Primer-Design.jpg","width":1286,"height":726},{"@type":"BreadcrumbList","@id":"https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://www.thermofisher.com/blog/behindthebench/"},{"@type":"ListItem","position":2,"name":"PCR Primer Design Tips"}]},{"@type":"WebSite","@id":"https://www.thermofisher.com/blog/behindthebench/#website","url":"https://www.thermofisher.com/blog/behindthebench/","name":"Behind the Bench","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://www.thermofisher.com/blog/behindthebench/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https://www.thermofisher.com/blog/behindthebench/#/schema/person/9bbb2d67616274d3d4a21a584f7f4a0c","name":"Behind The Bench Staff","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https://www.thermofisher.com/blog/behindthebench/#/schema/person/image/","url":"https://secure.gravatar.com/avatar/d6e5815e57520094d932400e2af233b9?s=96&d=mm&r=g","contentUrl":"https://secure.gravatar.com/avatar/d6e5815e57520094d932400e2af233b9?s=96&d=mm&r=g","caption":"Behind The Bench Staff"},"url":"https://www.thermofisher.com/blog/author/behind-the-bench-staff/"}]}</script>  <link rel='dns-prefetch' href='//www.thermofisher.com' /> <link rel='dns-prefetch' href='//use.fontawesome.com' /> <link rel="alternate" type="application/rss+xml" title="Behind the Bench » Feed" href="https://www.thermofisher.com/blog/behindthebench/feed/" /> <link rel="alternate" type="application/rss+xml" title="Behind the Bench » Comments Feed" href="https://www.thermofisher.com/blog/behindthebench/comments/feed/" /> <link rel="alternate" type="application/rss+xml" title="Behind the Bench » PCR Primer Design Tips Comments Feed" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/feed/" />  <script src="https://cdn.optimizely.com/js/8156647427.js"></script>  <script> (function(h,o,t,j,a,r){ h.hj=h.hj||function(){(h.hj.q=h.hj.q||[]).push(arguments)}; h._hjSettings={hjid:373708,hjsv:5}; a=o.getElementsByTagName('head')[0]; r=o.createElement('script');r.async=1; r.src=t+h._hjSettings.hjid+j+h._hjSettings.hjsv; a.appendChild(r); })(window,document,'//static.hotjar.com/c/hotjar-','.js?sv='); </script>  <script src="//www.googletagmanager.com/gtag/js?id=G-K4QTN4KM25" data-cfasync="false" data-wpfc-render="false" type="text/javascript" async></script> <script data-cfasync="false" data-wpfc-render="false" type="text/javascript"> var mi_version = '9.2.0'; var mi_track_user = true; var mi_no_track_reason = ''; var MonsterInsightsDefaultLocations = {"page_location":"https:\/\/admin.acceleratingscience.com\/behindthebench\/pcr-primer-design-tips\/"}; if ( typeof MonsterInsightsPrivacyGuardFilter === 'function' ) { var MonsterInsightsLocations = (typeof MonsterInsightsExcludeQuery === 'object') ? MonsterInsightsPrivacyGuardFilter( MonsterInsightsExcludeQuery ) : MonsterInsightsPrivacyGuardFilter( MonsterInsightsDefaultLocations ); } else { var MonsterInsightsLocations = (typeof MonsterInsightsExcludeQuery === 'object') ? MonsterInsightsExcludeQuery : MonsterInsightsDefaultLocations; } var disableStrs = [ 'ga-disable-G-K4QTN4KM25', ]; /* Function to detect opted out users */ function __gtagTrackerIsOptedOut() { for (var index = 0; index < disableStrs.length; index++) { if (document.cookie.indexOf(disableStrs[index] + '=true') > -1) { return true; } } return false; } /* Disable tracking if the opt-out cookie exists. */ if (__gtagTrackerIsOptedOut()) { for (var index = 0; index < disableStrs.length; index++) { window[disableStrs[index]] = true; } } /* Opt-out function */ function __gtagTrackerOptout() { for (var index = 0; index < disableStrs.length; index++) { document.cookie = disableStrs[index] + '=true; expires=Thu, 31 Dec 2099 23:59:59 UTC; path=/'; window[disableStrs[index]] = true; } } if ('undefined' === typeof gaOptout) { function gaOptout() { __gtagTrackerOptout(); } } window.dataLayer = window.dataLayer || []; window.MonsterInsightsDualTracker = { helpers: {}, trackers: {}, }; if (mi_track_user) { function __gtagDataLayer() { dataLayer.push(arguments); } function __gtagTracker(type, name, parameters) { if (!parameters) { parameters = {}; } if (parameters.send_to) { __gtagDataLayer.apply(null, arguments); return; } if (type === 'event') { parameters.send_to = monsterinsights_frontend.v4_id; var hookName = name; if (typeof parameters['event_category'] !== 'undefined') { hookName = parameters['event_category'] + ':' + name; } if (typeof MonsterInsightsDualTracker.trackers[hookName] !== 'undefined') { MonsterInsightsDualTracker.trackers[hookName](parameters); } else { __gtagDataLayer('event', name, parameters); } } else { __gtagDataLayer.apply(null, arguments); } } __gtagTracker('js', new Date()); __gtagTracker('set', { 'developer_id.dZGIzZG': true, }); if ( MonsterInsightsLocations.page_location ) { __gtagTracker('set', MonsterInsightsLocations); } __gtagTracker('config', 'G-K4QTN4KM25', {"use_amp_client_id":"true","forceSSL":"true","author":"user-120","category":"Lab Tips and Tricks","published_at":"2019-09-25T23:02:49+00:00","tags":"PCR workflow"} ); window.gtag = __gtagTracker; (function () { /* https://developers.google.com/analytics/devguides/collection/analyticsjs/ */ /* ga and __gaTracker compatibility shim. */ var noopfn = function () { return null; }; var newtracker = function () { return new Tracker(); }; var Tracker = function () { return null; }; var p = Tracker.prototype; p.get = noopfn; p.set = noopfn; p.send = function () { var args = Array.prototype.slice.call(arguments); args.unshift('send'); __gaTracker.apply(null, args); }; var __gaTracker = function () { var len = arguments.length; if (len === 0) { return; } var f = arguments[len - 1]; if (typeof f !== 'object' || f === null || typeof f.hitCallback !== 'function') { if ('send' === arguments[0]) { var hitConverted, hitObject = false, action; if ('event' === arguments[1]) { if ('undefined' !== typeof arguments[3]) { hitObject = { 'eventAction': arguments[3], 'eventCategory': arguments[2], 'eventLabel': arguments[4], 'value': arguments[5] ? arguments[5] : 1, } } } if ('pageview' === arguments[1]) { if ('undefined' !== typeof arguments[2]) { hitObject = { 'eventAction': 'page_view', 'page_path': arguments[2], } } } if (typeof arguments[2] === 'object') { hitObject = arguments[2]; } if (typeof arguments[5] === 'object') { Object.assign(hitObject, arguments[5]); } if ('undefined' !== typeof arguments[1].hitType) { hitObject = arguments[1]; if ('pageview' === hitObject.hitType) { hitObject.eventAction = 'page_view'; } } if (hitObject) { action = 'timing' === arguments[1].hitType ? 'timing_complete' : hitObject.eventAction; hitConverted = mapArgs(hitObject); __gtagTracker('event', action, hitConverted); } } return; } function mapArgs(args) { var arg, hit = {}; var gaMap = { 'eventCategory': 'event_category', 'eventAction': 'event_action', 'eventLabel': 'event_label', 'eventValue': 'event_value', 'nonInteraction': 'non_interaction', 'timingCategory': 'event_category', 'timingVar': 'name', 'timingValue': 'value', 'timingLabel': 'event_label', 'page': 'page_path', 'location': 'page_location', 'title': 'page_title', 'referrer' : 'page_referrer', }; for (arg in args) { if (!(!args.hasOwnProperty(arg) || !gaMap.hasOwnProperty(arg))) { hit[gaMap[arg]] = args[arg]; } else { hit[arg] = args[arg]; } } return hit; } try { f.hitCallback(); } catch (ex) { } }; __gaTracker.create = newtracker; __gaTracker.getByName = newtracker; __gaTracker.getAll = function () { return []; }; __gaTracker.remove = noopfn; __gaTracker.loaded = true; window['__gaTracker'] = __gaTracker; })(); } else { console.log(""); (function () { function __gtagTracker() { return null; } window['__gtagTracker'] = __gtagTracker; window['gtag'] = __gtagTracker; })(); } </script>  <link rel='stylesheet' id='jetpack_related-posts-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/jetpack/modules/related-posts/related-posts.css?ver=20240116' type='text/css' media='all' /> <link rel='stylesheet' id='accelerating-science-blogs-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/themes/accelerating-science-blogs/style.css?ver=1.2.9.3' type='text/css' media='all' /> <link rel='stylesheet' id='wp-block-library-css' href='https://www.thermofisher.com/blog//wp-includes/css/dist/block-library/style.min.css?ver=6.6.1' type='text/css' media='all' /> <link rel='stylesheet' id='mediaelement-css' href='https://www.thermofisher.com/blog//wp-includes/js/mediaelement/mediaelementplayer-legacy.min.css?ver=4.2.17' type='text/css' media='all' /> <link rel='stylesheet' id='wp-mediaelement-css' href='https://www.thermofisher.com/blog//wp-includes/js/mediaelement/wp-mediaelement.min.css?ver=6.6.1' type='text/css' media='all' /> <style id='jetpack-sharing-buttons-style-inline-css' type='text/css'> .jetpack-sharing-buttons__services-list{display:flex;flex-direction:row;flex-wrap:wrap;gap:0;list-style-type:none;margin:5px;padding:0}.jetpack-sharing-buttons__services-list.has-small-icon-size{font-size:12px}.jetpack-sharing-buttons__services-list.has-normal-icon-size{font-size:16px}.jetpack-sharing-buttons__services-list.has-large-icon-size{font-size:24px}.jetpack-sharing-buttons__services-list.has-huge-icon-size{font-size:36px}@media print{.jetpack-sharing-buttons__services-list{display:none!important}}.editor-styles-wrapper .wp-block-jetpack-sharing-buttons{gap:0;padding-inline-start:0}ul.jetpack-sharing-buttons__services-list.has-background{padding:1.25em 2.375em} </style> <style id='classic-theme-styles-inline-css' type='text/css'> /*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} </style> <style id='global-styles-inline-css' type='text/css'> :root{--wp--preset--aspect-ratio--square: 1;--wp--preset--aspect-ratio--4-3: 4/3;--wp--preset--aspect-ratio--3-4: 3/4;--wp--preset--aspect-ratio--3-2: 3/2;--wp--preset--aspect-ratio--2-3: 2/3;--wp--preset--aspect-ratio--16-9: 16/9;--wp--preset--aspect-ratio--9-16: 9/16;--wp--preset--color--black: #000000;--wp--preset--color--cyan-bluish-gray: #abb8c3;--wp--preset--color--white: #ffffff;--wp--preset--color--pale-pink: #f78da7;--wp--preset--color--vivid-red: #cf2e2e;--wp--preset--color--luminous-vivid-orange: #ff6900;--wp--preset--color--luminous-vivid-amber: #fcb900;--wp--preset--color--light-green-cyan: #7bdcb5;--wp--preset--color--vivid-green-cyan: #00d084;--wp--preset--color--pale-cyan-blue: #8ed1fc;--wp--preset--color--vivid-cyan-blue: #0693e3;--wp--preset--color--vivid-purple: #9b51e0;--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple: linear-gradient(135deg,rgba(6,147,227,1) 0%,rgb(155,81,224) 100%);--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan: linear-gradient(135deg,rgb(122,220,180) 0%,rgb(0,208,130) 100%);--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange: linear-gradient(135deg,rgba(252,185,0,1) 0%,rgba(255,105,0,1) 100%);--wp--preset--gradient--luminous-vivid-orange-to-vivid-red: linear-gradient(135deg,rgba(255,105,0,1) 0%,rgb(207,46,46) 100%);--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray: linear-gradient(135deg,rgb(238,238,238) 0%,rgb(169,184,195) 100%);--wp--preset--gradient--cool-to-warm-spectrum: linear-gradient(135deg,rgb(74,234,220) 0%,rgb(151,120,209) 20%,rgb(207,42,186) 40%,rgb(238,44,130) 60%,rgb(251,105,98) 80%,rgb(254,248,76) 100%);--wp--preset--gradient--blush-light-purple: linear-gradient(135deg,rgb(255,206,236) 0%,rgb(152,150,240) 100%);--wp--preset--gradient--blush-bordeaux: linear-gradient(135deg,rgb(254,205,165) 0%,rgb(254,45,45) 50%,rgb(107,0,62) 100%);--wp--preset--gradient--luminous-dusk: linear-gradient(135deg,rgb(255,203,112) 0%,rgb(199,81,192) 50%,rgb(65,88,208) 100%);--wp--preset--gradient--pale-ocean: linear-gradient(135deg,rgb(255,245,203) 0%,rgb(182,227,212) 50%,rgb(51,167,181) 100%);--wp--preset--gradient--electric-grass: linear-gradient(135deg,rgb(202,248,128) 0%,rgb(113,206,126) 100%);--wp--preset--gradient--midnight: linear-gradient(135deg,rgb(2,3,129) 0%,rgb(40,116,252) 100%);--wp--preset--font-size--small: 13px;--wp--preset--font-size--medium: 20px;--wp--preset--font-size--large: 36px;--wp--preset--font-size--x-large: 42px;--wp--preset--spacing--20: 0.44rem;--wp--preset--spacing--30: 0.67rem;--wp--preset--spacing--40: 1rem;--wp--preset--spacing--50: 1.5rem;--wp--preset--spacing--60: 2.25rem;--wp--preset--spacing--70: 3.38rem;--wp--preset--spacing--80: 5.06rem;--wp--preset--shadow--natural: 6px 6px 9px rgba(0, 0, 0, 0.2);--wp--preset--shadow--deep: 12px 12px 50px rgba(0, 0, 0, 0.4);--wp--preset--shadow--sharp: 6px 6px 0px rgba(0, 0, 0, 0.2);--wp--preset--shadow--outlined: 6px 6px 0px -3px rgba(255, 255, 255, 1), 6px 6px rgba(0, 0, 0, 1);--wp--preset--shadow--crisp: 6px 6px 0px rgba(0, 0, 0, 1);}:where(.is-layout-flex){gap: 0.5em;}:where(.is-layout-grid){gap: 0.5em;}body .is-layout-flex{display: flex;}.is-layout-flex{flex-wrap: wrap;align-items: center;}.is-layout-flex > :is(*, div){margin: 0;}body .is-layout-grid{display: grid;}.is-layout-grid > :is(*, div){margin: 0;}:where(.wp-block-columns.is-layout-flex){gap: 2em;}:where(.wp-block-columns.is-layout-grid){gap: 2em;}:where(.wp-block-post-template.is-layout-flex){gap: 1.25em;}:where(.wp-block-post-template.is-layout-grid){gap: 1.25em;}.has-black-color{color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-color{color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-color{color: var(--wp--preset--color--white) !important;}.has-pale-pink-color{color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-color{color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-color{color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-color{color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-color{color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-color{color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-color{color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-color{color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-color{color: var(--wp--preset--color--vivid-purple) !important;}.has-black-background-color{background-color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-background-color{background-color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-background-color{background-color: var(--wp--preset--color--white) !important;}.has-pale-pink-background-color{background-color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-background-color{background-color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-background-color{background-color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-background-color{background-color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-background-color{background-color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-background-color{background-color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-background-color{background-color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-background-color{background-color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-background-color{background-color: var(--wp--preset--color--vivid-purple) !important;}.has-black-border-color{border-color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-border-color{border-color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-border-color{border-color: var(--wp--preset--color--white) !important;}.has-pale-pink-border-color{border-color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-border-color{border-color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-border-color{border-color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-border-color{border-color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-border-color{border-color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-border-color{border-color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-border-color{border-color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-border-color{border-color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-border-color{border-color: var(--wp--preset--color--vivid-purple) !important;}.has-vivid-cyan-blue-to-vivid-purple-gradient-background{background: var(--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple) !important;}.has-light-green-cyan-to-vivid-green-cyan-gradient-background{background: var(--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan) !important;}.has-luminous-vivid-amber-to-luminous-vivid-orange-gradient-background{background: var(--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange) !important;}.has-luminous-vivid-orange-to-vivid-red-gradient-background{background: var(--wp--preset--gradient--luminous-vivid-orange-to-vivid-red) !important;}.has-very-light-gray-to-cyan-bluish-gray-gradient-background{background: var(--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray) !important;}.has-cool-to-warm-spectrum-gradient-background{background: var(--wp--preset--gradient--cool-to-warm-spectrum) !important;}.has-blush-light-purple-gradient-background{background: var(--wp--preset--gradient--blush-light-purple) !important;}.has-blush-bordeaux-gradient-background{background: var(--wp--preset--gradient--blush-bordeaux) !important;}.has-luminous-dusk-gradient-background{background: var(--wp--preset--gradient--luminous-dusk) !important;}.has-pale-ocean-gradient-background{background: var(--wp--preset--gradient--pale-ocean) !important;}.has-electric-grass-gradient-background{background: var(--wp--preset--gradient--electric-grass) !important;}.has-midnight-gradient-background{background: var(--wp--preset--gradient--midnight) !important;}.has-small-font-size{font-size: var(--wp--preset--font-size--small) !important;}.has-medium-font-size{font-size: var(--wp--preset--font-size--medium) !important;}.has-large-font-size{font-size: var(--wp--preset--font-size--large) !important;}.has-x-large-font-size{font-size: var(--wp--preset--font-size--x-large) !important;} :where(.wp-block-post-template.is-layout-flex){gap: 1.25em;}:where(.wp-block-post-template.is-layout-grid){gap: 1.25em;} :where(.wp-block-columns.is-layout-flex){gap: 2em;}:where(.wp-block-columns.is-layout-grid){gap: 2em;} :root :where(.wp-block-pullquote){font-size: 1.5em;line-height: 1.6;} </style> <link rel='stylesheet' id='mashsb-styles-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/mashsharer/assets/css/mashsb.min.css?ver=4.0.47' type='text/css' media='all' /> <style id='mashsb-styles-inline-css' type='text/css'> .mashsb-count {color:#555759;}[class^="mashicon-"] .text, [class*=" mashicon-"] .text{ text-indent: -9999px !important; line-height: 0px; display: block; } [class^="mashicon-"] .text:after, [class*=" mashicon-"] .text:after { content: "" !important; text-indent: 0; font-size:13px; display: block !important; } [class^="mashicon-"], [class*=" mashicon-"] { width:25%; text-align: center !important; } [class^="mashicon-"] .icon:before, [class*=" mashicon-"] .icon:before { float:none; margin-right: 0; } .mashsb-buttons a{ margin-right: 3px; margin-bottom:3px; min-width: 0; width: 41px; } .onoffswitch, .onoffswitch-inner:before, .onoffswitch-inner:after .onoffswitch2, .onoffswitch2-inner:before, .onoffswitch2-inner:after { margin-right: 0px; width: 41px; line-height: 41px; } </style> <link rel='stylesheet' id='mashnet-styles-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/mashshare-networks/assets/css/mashnet.min.css?ver=2.5.3' type='text/css' media='all' /> <link rel='stylesheet' id='mashsas-styles-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/mashshare-select-and-share/assets/css/mashsas.min.css?ver=1.0.5' type='text/css' media='all' /> <link rel='stylesheet' id='gforms_reset_css-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/legacy/css/formreset.min.css?ver=2.8.17' type='text/css' media='all' /> <link rel='stylesheet' id='gforms_formsmain_css-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/legacy/css/formsmain.min.css?ver=2.8.17' type='text/css' media='all' /> <link rel='stylesheet' id='gforms_ready_class_css-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/legacy/css/readyclass.min.css?ver=2.8.17' type='text/css' media='all' /> <link rel='stylesheet' id='gforms_browsers_css-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/legacy/css/browsers.min.css?ver=2.8.17' type='text/css' media='all' /> <link rel='stylesheet' id='globals-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/themes/accelerating-science-blogs/global-style.css?ver=1.2.9.3' type='text/css' media='all' /> <link rel='stylesheet' id='bfa-font-awesome-css' href='https://use.fontawesome.com/releases/v5.15.4/css/all.css?ver=2.0.3' type='text/css' media='all' /> <link rel='stylesheet' id='bfa-font-awesome-v4-shim-css' href='https://use.fontawesome.com/releases/v5.15.4/css/v4-shims.css?ver=2.0.3' type='text/css' media='all' /> <style id='bfa-font-awesome-v4-shim-inline-css' type='text/css'> @font-face { font-family: 'FontAwesome'; src: url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-brands-400.eot'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-brands-400.eot?#iefix') format('embedded-opentype'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-brands-400.woff2') format('woff2'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-brands-400.woff') format('woff'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-brands-400.ttf') format('truetype'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-brands-400.svg#fontawesome') format('svg'); } @font-face { font-family: 'FontAwesome'; src: url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-solid-900.eot'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-solid-900.eot?#iefix') format('embedded-opentype'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-solid-900.woff2') format('woff2'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-solid-900.woff') format('woff'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-solid-900.ttf') format('truetype'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-solid-900.svg#fontawesome') format('svg'); } @font-face { font-family: 'FontAwesome'; src: url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-regular-400.eot'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-regular-400.eot?#iefix') format('embedded-opentype'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-regular-400.woff2') format('woff2'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-regular-400.woff') format('woff'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-regular-400.ttf') format('truetype'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-regular-400.svg#fontawesome') format('svg'); unicode-range: U+F004-F005,U+F007,U+F017,U+F022,U+F024,U+F02E,U+F03E,U+F044,U+F057-F059,U+F06E,U+F070,U+F075,U+F07B-F07C,U+F080,U+F086,U+F089,U+F094,U+F09D,U+F0A0,U+F0A4-F0A7,U+F0C5,U+F0C7-F0C8,U+F0E0,U+F0EB,U+F0F3,U+F0F8,U+F0FE,U+F111,U+F118-F11A,U+F11C,U+F133,U+F144,U+F146,U+F14A,U+F14D-F14E,U+F150-F152,U+F15B-F15C,U+F164-F165,U+F185-F186,U+F191-F192,U+F1AD,U+F1C1-F1C9,U+F1CD,U+F1D8,U+F1E3,U+F1EA,U+F1F6,U+F1F9,U+F20A,U+F247-F249,U+F24D,U+F254-F25B,U+F25D,U+F267,U+F271-F274,U+F279,U+F28B,U+F28D,U+F2B5-F2B6,U+F2B9,U+F2BB,U+F2BD,U+F2C1-F2C2,U+F2D0,U+F2D2,U+F2DC,U+F2ED,U+F328,U+F358-F35B,U+F3A5,U+F3D1,U+F410,U+F4AD; } </style> <link rel='stylesheet' id='boxzilla-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/boxzilla/assets/css/styles.css?ver=3.3.1' type='text/css' media='all' /> <script type="text/javascript" id="jetpack_related-posts-js-extra"> /* <![CDATA[ */ var related_posts_js_options = {"post_heading":"h4"}; /* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/jetpack/_inc/build/related-posts/related-posts.min.js?ver=20240116" id="jetpack_related-posts-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/google-analytics-premium/assets/js/frontend-gtag.min.js?ver=9.2.0" id="monsterinsights-frontend-script-js" async="async" data-wp-strategy="async"></script> <script data-cfasync="false" data-wpfc-render="false" type="text/javascript" id='monsterinsights-frontend-script-js-extra'>/* <![CDATA[ */ var monsterinsights_frontend = {"js_events_tracking":"true","download_extensions":"doc,pdf,ppt,zip,xls,docx,pptx,xlsx","inbound_paths":"[]","home_url":"https:\/\/admin.acceleratingscience.com\/behindthebench","hash_tracking":"false","v4_id":"G-K4QTN4KM25"};/* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/jquery/jquery.min.js?ver=3.7.1" id="jquery-core-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1" id="jquery-migrate-js"></script> <script type="text/javascript" id="mashsb-js-extra"> /* <![CDATA[ */ var mashsb = {"shares":"425","round_shares":"1","animate_shares":"0","dynamic_buttons":"0","share_url":"https:\/\/www.thermofisher.com\/blog\/behindthebench\/pcr-primer-design-tips\/","title":"PCR+Primer+Design+Tips","image":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/uploads\/sites\/9\/2019\/09\/PCR-Primer-Design.jpg","desc":"Designing oligonucleotides and making sure that you have the right parameters for your oligo is an important step in securing results, especially in PCR Primer Design. In order to achieve successful DNA amplification, it\u2019s important \u2026","hashtag":"thermofisher","subscribe":"content","subscribe_url":"","activestatus":"1","singular":"1","twitter_popup":"1","refresh":"0","nonce":"01c3793ea9","postid":"12907","servertime":"1732370983","ajaxurl":"https:\/\/www.thermofisher.com\/blog\/wp-admin\/admin-ajax.php"}; /* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/mashsharer/assets/js/mashsb.min.js?ver=4.0.47" id="mashsb-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/mashshare-google-analytics/assets/js/mashga.min.js?ver=1.0.9" id="mashga-js"></script> <script type="text/javascript" id="mashnet-js-extra"> /* <![CDATA[ */ var mashnet = {"body":"Check out this article I just read:","subject":"Check out this article from Accelerating Science","pinterest_select":"1","pinterest_image":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/uploads\/sites\/9\/2019\/09\/PCR-Primer-Design.jpg","pinterest_desc":"Designing oligonucleotides and making sure that you have the right parameters for your oligo is an important step in securing results, especially in PCR Primer Design. In order to achieve successful DNA amplification, it\u2019s important \u2026"}; /* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/mashshare-networks/assets/js/mashnet.min.js?ver=2.5.3" id="mashnet-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/underscore.min.js?ver=1.13.4" id="underscore-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/backbone.min.js?ver=1.5.0" id="backbone-js"></script> <script type="text/javascript" id="wp-api-js-js-extra"> /* <![CDATA[ */ var WP_API_Settings = {"root":"https:\/\/admin.acceleratingscience.com\/behindthebench","nonce":"ba522f8159"}; /* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/wp-search-live/public/assets/js/util--wp-api.js?ver=0.9" id="wp-api-js-js"></script> <script type="text/javascript" id="mashsas-js-extra"> /* <![CDATA[ */ var mashsas = {"minchars":"10","appid":"1603510369972799","facebook":"1","twitter":"1","mail":"1"}; /* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/mashshare-select-and-share/assets/js/mashsas.min.js?ver=1.0.5" id="mashsas-js"></script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/js/jquery.json.min.js?ver=2.8.17" id="gform_json-js"></script> <script type="text/javascript" id="gform_gravityforms-js-extra"> /* <![CDATA[ */ var gf_global = {"gf_currency_config":{"name":"U.S. Dollar","symbol_left":"$","symbol_right":"","symbol_padding":"","thousand_separator":",","decimal_separator":".","decimals":2,"code":"USD"},"base_url":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/plugins\/gravityforms","number_formats":[],"spinnerUrl":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/plugins\/gravityforms\/images\/spinner.svg","version_hash":"4a792b070322e711c2521ee9802c04ea","strings":{"newRowAdded":"New row added.","rowRemoved":"Row removed","formSaved":"The form has been saved. The content contains the link to return and complete the form."}}; var gf_global = {"gf_currency_config":{"name":"U.S. Dollar","symbol_left":"$","symbol_right":"","symbol_padding":"","thousand_separator":",","decimal_separator":".","decimals":2,"code":"USD"},"base_url":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/plugins\/gravityforms","number_formats":[],"spinnerUrl":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/plugins\/gravityforms\/images\/spinner.svg","version_hash":"4a792b070322e711c2521ee9802c04ea","strings":{"newRowAdded":"New row added.","rowRemoved":"Row removed","formSaved":"The form has been saved. The content contains the link to return and complete the form."}}; var gf_global = {"gf_currency_config":{"name":"U.S. Dollar","symbol_left":"$","symbol_right":"","symbol_padding":"","thousand_separator":",","decimal_separator":".","decimals":2,"code":"USD"},"base_url":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/plugins\/gravityforms","number_formats":[],"spinnerUrl":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/plugins\/gravityforms\/images\/spinner.svg","version_hash":"4a792b070322e711c2521ee9802c04ea","strings":{"newRowAdded":"New row added.","rowRemoved":"Row removed","formSaved":"The form has been saved. The content contains the link to return and complete the form."}}; var gf_global = {"gf_currency_config":{"name":"U.S. Dollar","symbol_left":"$","symbol_right":"","symbol_padding":"","thousand_separator":",","decimal_separator":".","decimals":2,"code":"USD"},"base_url":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/plugins\/gravityforms","number_formats":[],"spinnerUrl":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/plugins\/gravityforms\/images\/spinner.svg","version_hash":"4a792b070322e711c2521ee9802c04ea","strings":{"newRowAdded":"New row added.","rowRemoved":"Row removed","formSaved":"The form has been saved. The content contains the link to return and complete the form."}}; var gform_i18n = {"datepicker":{"days":{"monday":"Mo","tuesday":"Tu","wednesday":"We","thursday":"Th","friday":"Fr","saturday":"Sa","sunday":"Su"},"months":{"january":"January","february":"February","march":"March","april":"April","may":"May","june":"June","july":"July","august":"August","september":"September","october":"October","november":"November","december":"December"},"firstDay":1,"iconText":"Select date"}}; var gf_legacy_multi = {"1":"1","":"1"}; var gform_gravityforms = {"strings":{"invalid_file_extension":"This type of file is not allowed. Must be one of the following:","delete_file":"Delete this file","in_progress":"in progress","file_exceeds_limit":"File exceeds size limit","illegal_extension":"This type of file is not allowed.","max_reached":"Maximum number of files reached","unknown_error":"There was a problem while saving the file on the server","currently_uploading":"Please wait for the uploading to complete","cancel":"Cancel","cancel_upload":"Cancel this upload","cancelled":"Cancelled"},"vars":{"images_url":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/plugins\/gravityforms\/images"}}; /* ]]> */ </script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/js/gravityforms.min.js?ver=2.8.17" id="gform_gravityforms-js"></script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/js/chosen.jquery.min.js?ver=2.8.17" id="gform_chosen-js"></script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/assets/js/dist/utils.min.js?ver=50c7bea9c2320e16728e44ae9fde5f26" id="gform_gravityforms_utils-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/themes/accelerating-science-blogs/js/single-scripts.js?ver=1.2.9.3" id="single-scripts-js"></script> <link rel="https://api.w.org/" href="https://www.thermofisher.com/blog/behindthebench/wp-json/" /><link rel="alternate" title="JSON" type="application/json" href="https://www.thermofisher.com/blog/behindthebench/wp-json/wp/v2/posts/12907" /><link rel="EditURI" type="application/rsd+xml" title="RSD" href="https://www.thermofisher.com/blog/xmlrpc.php?rsd" /> <link rel='shortlink' href='https://www.thermofisher.com/blog/behindthebench/?p=12907' /> <link rel="alternate" title="oEmbed (JSON)" type="application/json+oembed" href="https://www.thermofisher.com/blog/behindthebench/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fwww.thermofisher.com%2Fblog%2Fbehindthebench%2Fpcr-primer-design-tips%2F" /> <link rel="alternate" title="oEmbed (XML)" type="text/xml+oembed" href="https://www.thermofisher.com/blog/behindthebench/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fwww.thermofisher.com%2Fblog%2Fbehindthebench%2Fpcr-primer-design-tips%2F&format=xml" /> <meta property="fb:pages" content="258357757657262" /> <meta property="ia:markup_url" content="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/?ia_markup=1" />  <link rel="icon" href="https://www.thermofisher.com/blog/behindthebench/wp-content/themes/accelerating-science-blogs/images/favicon.ico" />  <script async src="https://www.googletagmanager.com/gtag/js?id=UA-34877942-1"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'UA-34877942-1'); </script>  <script> !function(f,b,e,v,n,t,s){if(f.fbq)return;n=f.fbq=function(){n.callMethod? n.callMethod.apply(n,arguments):n.queue.push(arguments)};if(!f._fbq)f._fbq=n; n.push=n;n.loaded=!0;n.version='2.0';n.queue=[];t=b.createElement(e);t.async=!0; t.src=v;s=b.getElementsByTagName(e)[0];s.parentNode.insertBefore(t,s)}(window, document,'script','https://connect.facebook.net/en_US/fbevents.js'); fbq('init', '305572349637096'); fbq('track', "PageView");</script> <noscript><img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=305572349637096&ev=PageView&noscript=1" /></noscript>   <script async src="https://www.googletagmanager.com/gtag/js?id=AW-1013120100"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'AW-1013120100'); </script>  <script> gtag('event', 'conversion', {'send_to': 'AW-1013120100/_RFLCLT6yqsBEOT4i-MD'}); </script> <script type="application/ld+json"> {"@context":"http:\/\/schema.org","@type":"BlogPosting","mainEntityofPage":{"@type":"WebPage","@id":"https:\/\/www.thermofisher.com\/blog\/behindthebench\/pcr-primer-design-tips\/"},"headline":"PCR Primer Design Tips","datePublished":"09\/25\/2019","dateModified":"09\/25\/2019","publisher":{"@type":"Organization","name":"Thermo Fisher Scientific","URL":"https:\/\/www.thermofisher.com\/us\/en\/home.html","logo":{"@type":"ImageObject","url":"https:\/\/www.thermofisher.com\/content\/dam\/LifeTech\/Images\/Header\/logo-color.png"}},"image":{"@type":"ImageObject","url":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/uploads\/sites\/9\/2019\/09\/PCR-Primer-Design.jpg","width":1286,"height":726},"keywords":"PCR workflow, ","author":{"@type":"Person","name":"Behind The Bench Staff"}} </script> <script type="text/javascript" src="https://www.thermofisher.com/etc/designs/lifetech/clientlibs/digitaldata.js" defer="defer"></script> <script id="tagmanager" type="text/javascript" src='https://assets.adobedtm.com/launch-ENeecb77f1160a4928a492ff040f7110c7.min.js' defer="defer"></script> <script> (function($) { $(document).ready(function() { digitalData.setPageType('blog'); }) })(jQuery); </script> <style type="text/css" id="wp-custom-css"> /* Welcome to Custom CSS! To learn how this works, see http://wp.me/PEmnE-Bt */blockquote { width: 450px; color:#FFF; background: #7d7e7d; /* Old browsers */ background: -moz-linear-gradient(top, #7d7e7d 0%, #0e0e0e 100%); /* FF3.6+ */ background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#7d7e7d), color-stop(100%,#0e0e0e)); /* Chrome,Safari4+ */ background: -webkit-linear-gradient(top, #7d7e7d 0%,#0e0e0e 100%); /* Chrome10+,Safari5.1+ */ background: -o-linear-gradient(top, #7d7e7d 0%,#0e0e0e 100%); /* Opera 11.10+ */ background: -ms-linear-gradient(top, #7d7e7d 0%,#0e0e0e 100%); /* IE10+ */ background: linear-gradient(to bottom, #7d7e7d 0%,#0e0e0e 100%); /* W3C */ filter: progid:DXImageTransform.Microsoft.gradient( startColorstr=’#7d7e7d’, endColorstr=’#0e0e0e’,GradientType=0 ); /* IE6-9 */ border: 1px solid #ccc; border-radius: 6px; box-shadow: 1px 1px 1px #ccc; font-style: italic; } </style> </head> <body class="post-template-default single single-post postid-12907 single-format-standard header-image full-width-content genesis-breadcrumbs-visible"><div class="site-container"><header class="site-header"><div class="wrap"><div class="title-area"><p class="site-title"><a href="https://www.thermofisher.com/" title="Thermo Fisher Scientific">Thermo Fisher Scientific</a></p></div><div class="widget-area header-widget-area"><section id="nav_menu-2" class="widget widget_nav_menu"><div class="widget-wrap"><nav class="nav-header"><ul id="menu-main-menu" class="menu genesis-nav-menu"><li id="menu-item-15" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children menu-item-15"><a><span >Categories</span></a> <ul class="sub-menu"> <li id="menu-item-22" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-22"><a href="https://www.thermofisher.com/blog/materials/"><span >Advancing Materials</span></a></li> <li id="menu-item-21" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-21"><a href="https://www.thermofisher.com/blog/mining/"><span >Advancing Mining</span></a></li> <li id="menu-item-17937" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-17937"><a href="https://www.thermofisher.com/blog/analyteguru/"><span >AnalyteGuru</span></a></li> <li id="menu-item-20" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-20"><a href="https://www.thermofisher.com/blog/metals/"><span >Analyzing Metals</span></a></li> <li id="menu-item-12913" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-12913"><a href="https://www.thermofisher.com/blog/ask-a-scientist/"><span >Ask a Scientist</span></a></li> <li id="menu-item-16" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-16"><a href="https://www.thermofisher.com/blog/behindthebench/"><span >Behind the Bench</span></a></li> <li id="menu-item-17769" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-17769"><a href="https://www.thermofisher.com/blog/biotechnology/"><span >Biotech at Scale</span></a></li> <li id="menu-item-16657" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-16657"><a href="https://www.thermofisher.com/blog/clinical-conversations/"><span >Clinical Conversations</span></a></li> <li id="menu-item-19" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-19"><a href="https://www.thermofisher.com/blog/food/"><span >Examining Food</span></a></li> <li id="menu-item-10924" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-10924"><a href="https://www.thermofisher.com/blog/identifying-threats/"><span >Identifying Threats</span></a></li> <li id="menu-item-16704" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-16704"><a href="https://www.thermofisher.com/blog/semiconductors/"><span >Illuminating Semiconductors</span></a></li> <li id="menu-item-16705" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-16705"><a href="https://www.thermofisher.com/blog/atomic-resolution/"><span >Life in Atomic Resolution</span></a></li> <li id="menu-item-10922" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-10922"><a href="https://www.thermofisher.com/blog/life-in-the-lab/"><span >Life in the Lab</span></a></li> <li id="menu-item-16658" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-16658"><a href="https://www.thermofisher.com/blog/oempowered/"><span >OEMpowered</span></a></li> <li id="menu-item-12812" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-12812"><a href="https://www.thermofisher.com/blog/connectedlab/"><span >The Connected Lab</span></a></li> </ul> </li> <li id="menu-item-24" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-24"><a href="https://www.thermofisher.com/blog/about-us/"><span >About Us</span></a></li> <li id="menu-item-25" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-25"><a href="https://www.thermofisher.com/blog/contact-us/?site=behindthebench"><span >Contact</span></a></li> </ul></nav></div></section> </div><div class="breadcrumb"><span class="breadcrumb-link-wrap"><a href="https://www.thermofisher.com/blog/?">Accelerating Science</a></span><span class="breadcrumb-link-wrap"><a class="breadcrumb-link" href="https://www.thermofisher.com/blog/behindthebench/"><span class="breadcrumb-link-text-wrap">Behind the Bench</span></a><meta ></span> <span aria-label="breadcrumb separator">/</span> <span class="breadcrumb-link-wrap"><a class="breadcrumb-link" href="https://www.thermofisher.com/blog/behindthebench/lab-tips-and-tricks/"><span class="breadcrumb-link-text-wrap">Lab Tips and Tricks</span></a><meta ></span> <span aria-label="breadcrumb separator">/</span> <span class="breadcrumb-current-title">PCR Primer Design Tips</span></div></div></header><div class="site-inner"><div class="content-sidebar-wrap"><main class="content"><article class="post-12907 post type-post status-publish format-standard has-post-thumbnail category-lab-tips-and-tricks tag-pcr-workflow entry" aria-label="PCR Primer Design Tips"><header class="entry-header"><h1 class="entry-title">PCR Primer Design Tips</h1> <span class="post-info-author"> By <a href="https://www.thermofisher.com/blog/author/behind-the-bench-staff/" title="Posts by Behind The Bench Staff" rel="author">Behind The Bench Staff</a> </span> <span class="post-info-date"> 09.25.2019 </span> </header><div class="entry-content"><p>Designing oligonucleotides and making sure that you have the right parameters for your <a href="https://www.thermofisher.com/blog/behindthebench/what-is-an-oligo/?icid=BID_SBOLG_PJT3762_WhatIsOligohttp://" target="_blank" rel="noopener noreferrer">oligo</a> is an important step in securing results, especially in <a href="https://www.thermofisher.com/us/en/home/life-science/oligonucleotides-primers-probes-genes/applied-biosystems-custom-primers-probes.html?icid=BID_SBOLG_PJT3762_PCRprimerDesign" target="_blank" rel="noopener noreferrer">PCR Primer Design</a>. In order to achieve successful DNA amplification, it’s important to start off with the right primer.</p> <p><img decoding="async" src="https://www.thermofisher.com/blog/behindthebench/wp-content/uploads/sites/9/2019/09/pcr-primer.jpg" width="396" height="207" /></p> <h2>What makes a good primer?</h2> <p>Here are some guidelines for designing your <a href="https://www.thermofisher.com/us/en/home/life-science/oligonucleotides-primers-probes-genes/applied-biosystems-5-prime-labeled-primers.html?icid=BID_SBOLG_PJT3762_PCRprimers" target="_blank" rel="noopener noreferrer">PCR primers</a>:</p> <ol> <li>Aim for the GC content to be between 40 and 60% with the 3’ of a primer ending in G or C to promote binding. This is known as a GC Clamp. The G and C bases have stronger hydrogen bonding and help with the stability of the primer. Be mindful not to have too many repeating G or C bases, as this can cause primer-dimer formation.</li> <li>A good length for PCR primers is generally around 18-30 bases. Specificity usually is dependent on length and annealing temperature. The shorter the primers are, the more efficiently they will bind or anneal to the target.</li> <li>Try to make the melting temperature (Tm) of the primers between 65°C and 75°C, and within 5°C of each other. Because the Tm is dependent on the length, it’s important to keep primers on the shorter end. The bases also impact the Tm, G and C result in higher melting temperatures than A and T. If the Tm of your primer is very low, try to find a sequence with more GC content, or extend the length of the primer a little.</li> <li>Typically, 3 to 4 nucleotides are added 5 ’of the restriction enzyme site in the primer to allow for efficient cutting.</li> <li>Try to avoid regions of secondary structure and have a balanced distribution of GC-rich and AT-rich domains.</li> <li>Try to avoid runs of 4 or more of one base, or dinucleotide repeats (for example, ACCCC or ATATATAT).</li> <li>Avoid intra-primer homology (more than 3 bases that complement within the primer) or inter-primer homology (forward and reverse primers having complementary sequences). These circumstances can lead to self-dimers or primer-dimers instead of annealing to the desired DNA sequences.</li> <li>If you are using the primers for cloning, we recommend cartridge purification as a minimum level of purification.</li> <li>If you are using the primers for mutagenesis, try to have the mismatched bases towards the middle of the primer.</li> <li>If you are using the primers for a PCR reaction to be used in Invitrogen TOPO cloning, the primers should not have a phosphate modification.</li> </ol> <p> </p> <p>For Research Use Only. Not for Use in Diagnostic Procedures.</p> <aside class="mashsb-container mashsb-main "><div class="mashsb_above_buttons">Share this article </div><div class="mashsb-box"><div class="mashsb-count mash-large" style="float:left"><div class="counts mashsbcount">425</div><span class="mashsb-sharetext">SHARES</span></div><div class="mashsb-buttons"><a class="mashicon-facebook mash-large mashsb-noshadow" href="https://www.facebook.com/sharer.php?u=https%3A%2F%2Fwww.thermofisher.com%2Fblog%2Fbehindthebench%2Fpcr-primer-design-tips%2F" target="_top" rel="nofollow"><span class="icon"></span><span class="text">Facebook</span></a><a class="mashicon-linkedin mash-large mashsb-noshadow" href="https://www.linkedin.com/shareArticle?trk=PCR+Primer+Design+Tips&url=https%3A%2F%2Fwww.thermofisher.com%2Fblog%2Fbehindthebench%2Fpcr-primer-design-tips%2F" target="_top" rel="nofollow"><span class="icon"></span><span class="text">Linkedin</span></a><a class="mashicon-twitter mash-large mashsb-noshadow" href="https://twitter.com/intent/tweet?text=PCR%20Primer%20Design%20Tips&url=https://www.thermofisher.com/blog/behindthebench/?p=12907&via=thermofisher" target="_top" rel="nofollow"><span class="icon"></span><span class="text">Twitter</span></a><a class="mashicon-mail mash-large mashsb-noshadow" href="mailto:?subject=Check%20out%20this%20article%20from%20Accelerating%20Science&body=Check%20out%20this%20article%20I%20just%20read%3Ahttps%3A%2F%2Fwww.thermofisher.com%2Fblog%2Fbehindthebench%2Fpcr-primer-design-tips%2F" target="_top" rel="nofollow"><span class="icon"></span><span class="text">Mail</span></a><div class="onoffswitch2 mash-large mashsb-noshadow" style="display:none"></div></div> </div> <div style="clear:both"></div><div class="mashsb-toggle-container"></div></aside> </div></article><div class="entry-comments" id="comments"><h3>Comments</h3><ol class="comment-list"> <li class="comment even thread-even depth-1" id="comment-7260"> <article id="article-comment-7260"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/a905c0855f5c6b396d9a3cd7ad128108?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/a905c0855f5c6b396d9a3cd7ad128108?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' decoding='async'/><span class="comment-author-name">Rijith Jayarajan</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-7260">April 18, 2020 at 10:26 pm</a></time></p> </header> <div class="comment-content"> <p>5. Try toavoidregionsofsecondarystructureandhaveabalanceddistributionofGC-rich and AT- rich domains.</p> <p>What is the 5th point??? </p> <p>Please edit properly before you upload something.</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-7260' data-commentid="7260" data-postid="12907" data-belowelement="article-comment-7260" data-respondelement="respond" data-replyto="Reply to Rijith Jayarajan" aria-label='Reply to Rijith Jayarajan'>Reply</a></div> </article> <ul class="children"> <li class="comment odd alt depth-2" id="comment-7657"> <article id="article-comment-7657"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/37ee79e6445562dd76fb95287371bb39?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/37ee79e6445562dd76fb95287371bb39?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">YJ Loo</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-7657">May 25, 2020 at 5:00 pm</a></time></p> </header> <div class="comment-content"> <p>Try to avoid regions of secondary structure and have a balanced distribution of GC-rich and AT- rich domains.</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-7657' data-commentid="7657" data-postid="12907" data-belowelement="article-comment-7657" data-respondelement="respond" data-replyto="Reply to YJ Loo" aria-label='Reply to YJ Loo'>Reply</a></div> </article> </li> </ul> </li> <li class="comment even thread-odd thread-alt depth-1" id="comment-7261"> <article id="article-comment-7261"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/a905c0855f5c6b396d9a3cd7ad128108?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/a905c0855f5c6b396d9a3cd7ad128108?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">Rijith Jayarajan</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-7261">April 18, 2020 at 10:27 pm</a></time></p> </header> <div class="comment-content"> <p>5. Try toavoidregionsofsecondarystructureandhaveabalanceddistributionofGC-rich and AT-rich domains.</p> <p>What is the 5th point??? </p> <p>Please edit properly before you upload something.</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-7261' data-commentid="7261" data-postid="12907" data-belowelement="article-comment-7261" data-respondelement="respond" data-replyto="Reply to Rijith Jayarajan" aria-label='Reply to Rijith Jayarajan'>Reply</a></div> </article> </li> <li class="comment odd alt thread-even depth-1" id="comment-13986"> <article id="article-comment-13986"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/420d11f6c9f96ced8a3132aa43300545?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/420d11f6c9f96ced8a3132aa43300545?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">Nesrine</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-13986">December 1, 2020 at 11:27 am</a></time></p> </header> <div class="comment-content"> <p>4. Typically, 3 to 4 nucleotides are added 5 ’of the restriction enzyme site in the primer to allow for efficient cutting.<br /> What does this means please. Can I have an explanation !?</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-13986' data-commentid="13986" data-postid="12907" data-belowelement="article-comment-13986" data-respondelement="respond" data-replyto="Reply to Nesrine" aria-label='Reply to Nesrine'>Reply</a></div> </article> <ul class="children"> <li class="comment even depth-2" id="comment-14467"> <article id="article-comment-14467"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/394f802c313ba473ddf4721919a640e5?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/394f802c313ba473ddf4721919a640e5?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">Assirbad Behura</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-14467">December 30, 2020 at 1:24 am</a></time></p> </header> <div class="comment-content"> <p>In case of designing cloning primers, 3 or 4 nucleotides are added at 5′ end before the restriction site to facilitate efficient cutting.</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-14467' data-commentid="14467" data-postid="12907" data-belowelement="article-comment-14467" data-respondelement="respond" data-replyto="Reply to Assirbad Behura" aria-label='Reply to Assirbad Behura'>Reply</a></div> </article> </li> </ul> </li> <li class="comment odd alt thread-odd thread-alt depth-1" id="comment-13995"> <article id="article-comment-13995"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/88da37a8a02aedb7979abde160715fab?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/88da37a8a02aedb7979abde160715fab?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">Niranjan</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-13995">December 2, 2020 at 4:37 am</a></time></p> </header> <div class="comment-content"> <p>Anyone please send the flow chart of primer design for Bacterial DNA diagnosis and Viral RNA diagnosis. Flow Chart means starting to end (Taking a sequence from NCBI to final primer design)</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-13995' data-commentid="13995" data-postid="12907" data-belowelement="article-comment-13995" data-respondelement="respond" data-replyto="Reply to Niranjan" aria-label='Reply to Niranjan'>Reply</a></div> </article> </li> <li class="comment even thread-even depth-1" id="comment-14468"> <article id="article-comment-14468"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/394f802c313ba473ddf4721919a640e5?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/394f802c313ba473ddf4721919a640e5?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">Assirbad Behura</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-14468">December 30, 2020 at 1:27 am</a></time></p> </header> <div class="comment-content"> <p>In case of designing cloning primers, 3 or 4 nucleotides are added at 5′ end before the restriction site to facilitate efficient cutting.</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-14468' data-commentid="14468" data-postid="12907" data-belowelement="article-comment-14468" data-respondelement="respond" data-replyto="Reply to Assirbad Behura" aria-label='Reply to Assirbad Behura'>Reply</a></div> </article> </li> <li class="comment odd alt thread-odd thread-alt depth-1" id="comment-14834"> <article id="article-comment-14834"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/b16a1a73bed54eda56c986b716d25812?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/b16a1a73bed54eda56c986b716d25812?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">Ali Husain</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-14834">January 18, 2021 at 4:42 pm</a></time></p> </header> <div class="comment-content"> <p>Nice work, but please, can you explain point 6 “Try to avoid runs of 4 or more of one base, or dinucleotide repeats (for example, ACCCC or ATATATAT)”??</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-14834' data-commentid="14834" data-postid="12907" data-belowelement="article-comment-14834" data-respondelement="respond" data-replyto="Reply to Ali Husain" aria-label='Reply to Ali Husain'>Reply</a></div> </article> <ul class="children"> <li class="comment even depth-2" id="comment-15411"> <article id="article-comment-15411"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/311ece51b07054e2e9dff21edb4b5461?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/311ece51b07054e2e9dff21edb4b5461?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">Stephen Jackson</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-15411">March 18, 2021 at 3:02 pm</a></time></p> </header> <div class="comment-content"> <p>Oligos containing these types of sequences are typically more difficult to synthesize and may have non-Watson/Crick secondary structures that could interfere with their performance.</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-15411' data-commentid="15411" data-postid="12907" data-belowelement="article-comment-15411" data-respondelement="respond" data-replyto="Reply to Stephen Jackson" aria-label='Reply to Stephen Jackson'>Reply</a></div> </article> </li> <li class="comment odd alt depth-2" id="comment-15413"> <article id="article-comment-15413"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/311ece51b07054e2e9dff21edb4b5461?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/311ece51b07054e2e9dff21edb4b5461?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">Steve Jackson</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-15413">March 18, 2021 at 3:04 pm</a></time></p> </header> <div class="comment-content"> <p>Oligos containing these types of sequences are typically more difficult to synthesize and may demonstrate non-Watson/Crick secondary structures, changing their behavior.</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-15413' data-commentid="15413" data-postid="12907" data-belowelement="article-comment-15413" data-respondelement="respond" data-replyto="Reply to Steve Jackson" aria-label='Reply to Steve Jackson'>Reply</a></div> </article> </li> </ul> </li> <li class="comment even thread-even depth-1" id="comment-15412"> <article id="article-comment-15412"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/311ece51b07054e2e9dff21edb4b5461?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/311ece51b07054e2e9dff21edb4b5461?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">Stephen Jackson</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-15412">March 18, 2021 at 3:02 pm</a></time></p> </header> <div class="comment-content"> <p>Oligos containing these types of sequences are typically more difficult to synthesize and may have non-Watson/Crick secondary structures that could interfere with their performance.</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-15412' data-commentid="15412" data-postid="12907" data-belowelement="article-comment-15412" data-respondelement="respond" data-replyto="Reply to Stephen Jackson" aria-label='Reply to Stephen Jackson'>Reply</a></div> </article> </li> <li class="comment odd alt thread-odd thread-alt depth-1" id="comment-15448"> <article id="article-comment-15448"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/53c10e759b25fb6d557b13c4d1f56aa7?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/53c10e759b25fb6d557b13c4d1f56aa7?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">mustafa younis</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-15448">March 22, 2021 at 6:16 pm</a></time></p> </header> <div class="comment-content"> <p>could any one help me with determining what set of primers go with these PCR reactions:<br /> Set 1: 5’TACACTTATACTTTC3’ and 3’GTAAACCGCGCATTAG5’<br /> Set 2: 5’CTCGAGGTGAATAT3’ and 3’CCGCGCATTAGCTAT5’<br /> Set 3: 5’GAGTTACACTTATAC3’ and 3’TGGCGAGTAATCGATA5’</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-15448' data-commentid="15448" data-postid="12907" data-belowelement="article-comment-15448" data-respondelement="respond" data-replyto="Reply to mustafa younis" aria-label='Reply to mustafa younis'>Reply</a></div> </article> <ul class="children"> <li class="comment even depth-2" id="comment-15483"> <article id="article-comment-15483"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/dc8610a411313dd2c4b5007e16031a23?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/dc8610a411313dd2c4b5007e16031a23?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">Alex</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-15483">March 26, 2021 at 3:30 am</a></time></p> </header> <div class="comment-content"> <p>those already look like primers to me, unless you’re doing 6 PCR reactions</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-15483' data-commentid="15483" data-postid="12907" data-belowelement="article-comment-15483" data-respondelement="respond" data-replyto="Reply to Alex" aria-label='Reply to Alex'>Reply</a></div> </article> </li> </ul> </li> <li class="comment odd alt thread-even depth-1" id="comment-15852"> <article id="article-comment-15852"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/ad146fa169bbdb75f6397aade06f160f?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/ad146fa169bbdb75f6397aade06f160f?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">YJ</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-15852">May 4, 2021 at 8:31 pm</a></time></p> </header> <div class="comment-content"> <p>Great info! But I was wondering how primers can be designed in such a way that one of them is synthesised first?</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-15852' data-commentid="15852" data-postid="12907" data-belowelement="article-comment-15852" data-respondelement="respond" data-replyto="Reply to YJ" aria-label='Reply to YJ'>Reply</a></div> </article> </li> <li class="comment even thread-odd thread-alt depth-1" id="comment-15996"> <article id="article-comment-15996"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/43784fe70f829e52519bd7ede27ed704?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/43784fe70f829e52519bd7ede27ed704?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">LM</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-15996">May 17, 2021 at 5:40 pm</a></time></p> </header> <div class="comment-content"> <p>I have a confusion. Can designing a pcr reaction and designing of PCR primers are equal?</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-15996' data-commentid="15996" data-postid="12907" data-belowelement="article-comment-15996" data-respondelement="respond" data-replyto="Reply to LM" aria-label='Reply to LM'>Reply</a></div> </article> <ul class="children"> <li class="comment odd alt depth-2" id="comment-16798"> <article id="article-comment-16798"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/8342967568300fee3910fe31d828bb7c?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/8342967568300fee3910fe31d828bb7c?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">Abel</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-16798">July 16, 2021 at 10:18 pm</a></time></p> </header> <div class="comment-content"> <p>PCR primers are just one of the “ingredients” for PCR. Besides primers you will need a polymerase, nucleotides, minerals, ex. and those details, along with the thermocycling temperatures and number of cycles, are what constitute the design of the PCR reaction. There are plenty of protocols you can find online of how to design a PCR reaction based on what you are hoping to accomplish.</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-16798' data-commentid="16798" data-postid="12907" data-belowelement="article-comment-16798" data-respondelement="respond" data-replyto="Reply to Abel" aria-label='Reply to Abel'>Reply</a></div> </article> </li> </ul> </li> <li class="comment even thread-even depth-1" id="comment-16666"> <article id="article-comment-16666"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/dc28901b515d7fad44501d9a87397f0a?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/dc28901b515d7fad44501d9a87397f0a?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">messa</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-16666">June 30, 2021 at 3:55 pm</a></time></p> </header> <div class="comment-content"> <p>which ends of primer should have more CG cnontent? and why?</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-16666' data-commentid="16666" data-postid="12907" data-belowelement="article-comment-16666" data-respondelement="respond" data-replyto="Reply to messa" aria-label='Reply to messa'>Reply</a></div> </article> <ul class="children"> <li class="comment odd alt depth-2" id="comment-25527"> <article id="article-comment-25527"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/7bb158af658c980adea966ef21ae5217?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/7bb158af658c980adea966ef21ae5217?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">emmanuel</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-25527">March 22, 2023 at 4:13 pm</a></time></p> </header> <div class="comment-content"> <p>why do we consider start, stop, melting temperature, gc content, primer length, template strand: plus minus. in designing a pcr primer</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-25527' data-commentid="25527" data-postid="12907" data-belowelement="article-comment-25527" data-respondelement="respond" data-replyto="Reply to emmanuel" aria-label='Reply to emmanuel'>Reply</a></div> </article> </li> </ul> </li> <li class="comment even thread-odd thread-alt depth-1" id="comment-17612"> <article id="article-comment-17612"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/b4db85500a44ed1cccc13e8021837fa5?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/b4db85500a44ed1cccc13e8021837fa5?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">Astrid</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-17612">September 9, 2021 at 1:45 am</a></time></p> </header> <div class="comment-content"> <p>If i want to design primers at the program..<br /> this is the DNA sequence that i want to PCR..</p> <p>5’GAAGAAAGAA CACAAAAAGC AGGAAGGGAA GGGGACACAG<br /> CCAGGTTTGA TGAGCCCAGA CTCTCCATTA AACGCTGCGC<br /> TCAGGGGCCC CAGCTGGGGT CATTGACCCC TGAGCAACAC<br /> TCTCTTAAGC TGGAGGATCT CGCCTTGCAG GTTGAAGAGG<br /> TTACAACACA GAGCAGGGGC TGGGGCCTGG CATGAGGCAC<br /> 3’TGATCAATCA GTGCCACAGA TACTGCTGTT CTTAGGATGA<br /> GAGCAGAAGC TGGGGTGTCC CACCACAAGC AGGACAGAGA<br /> GGACACCTCT TTGTCATCAG AGATTAATGG GACCCTTGTC<br /> AGGCCCAGGG TGCAGTGGGG GAAGGGCAGA AGGGACCCTG<br /> CCCTCTCAAA GGCACAGTGA AGCTCTGAAC TGAAGGAGCT </p> <p>Should I used sequence from 5′ end?<br /> and can i check if the primers resulting the correct sequence?</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-17612' data-commentid="17612" data-postid="12907" data-belowelement="article-comment-17612" data-respondelement="respond" data-replyto="Reply to Astrid" aria-label='Reply to Astrid'>Reply</a></div> </article> </li> <li class="comment odd alt thread-even depth-1" id="comment-17911"> <article id="article-comment-17911"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/7dd2dfeb4cf9cee9aa1f17c7aa526848?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/7dd2dfeb4cf9cee9aa1f17c7aa526848?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">Emma Smith</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-17911">October 8, 2021 at 8:39 pm</a></time></p> </header> <div class="comment-content"> <p>Hello,</p> <p>I need this site for guest posting.This time my budget is low. So I can pay you 5$ each post. So I accepted my offer and I sent you an article.</p> <p>I have some questions ? can you please answer me. If you do or not with price.</p> <p>1st : You accepted a casino gambling adult link on your site ?</p> <p>2nd ; How much you can charge to insert a link ?</p> <p>3rd : How many visitors come to your site in one month ?</p> <p>4rth ; How many word article are accepted on your site ?</p> <p>Waiting for your reply with a positive response.</p> <p>Thanks.</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-17911' data-commentid="17911" data-postid="12907" data-belowelement="article-comment-17911" data-respondelement="respond" data-replyto="Reply to Emma Smith" aria-label='Reply to Emma Smith'>Reply</a></div> </article> </li> <li class="comment even thread-odd thread-alt depth-1" id="comment-19578"> <article id="article-comment-19578"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/d489cab1b5c2a56863f15bc0effca454?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/d489cab1b5c2a56863f15bc0effca454?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">Manish</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-19578">December 30, 2021 at 7:15 am</a></time></p> </header> <div class="comment-content"> <p>Hi,<br /> My Primer length is 42 nucleotides, (main seq. is 30nts, rest is adapters and Recognition seq.)<br /> GC content is~33, Tm= 64, HPLC purified.<br /> Primer seq.- GCGG TTAATTAA ATG GCA AAT TAT AAT TTC AAG TAC ATC GCC<br /> I am not getting any amplification product.<br /> Suggestions please!!</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-19578' data-commentid="19578" data-postid="12907" data-belowelement="article-comment-19578" data-respondelement="respond" data-replyto="Reply to Manish" aria-label='Reply to Manish'>Reply</a></div> </article> </li> <li class="comment odd alt thread-even depth-1" id="comment-19579"> <article id="article-comment-19579"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/d489cab1b5c2a56863f15bc0effca454?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/d489cab1b5c2a56863f15bc0effca454?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">Manish</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-19579">December 30, 2021 at 7:19 am</a></time></p> </header> <div class="comment-content"> <p>Hi,<br /> My primer length is 42 nts. (main seq.= 30 nts, rest is adapters and Recognition seq.)<br /> GC content= 33, Tm= 64, HPLC purified<br /> Primer seq.- GCGG TTAATTAA ATG GCA AAT TAT AAT TTC AAG TAC ATC GCC<br /> I am not getting gene specific amplification product (probably, primer dimer only)<br /> Suggestions please!!</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-19579' data-commentid="19579" data-postid="12907" data-belowelement="article-comment-19579" data-respondelement="respond" data-replyto="Reply to Manish" aria-label='Reply to Manish'>Reply</a></div> </article> </li> <li class="comment even thread-odd thread-alt depth-1" id="comment-19580"> <article id="article-comment-19580"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/d489cab1b5c2a56863f15bc0effca454?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/d489cab1b5c2a56863f15bc0effca454?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">Manish</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-19580">December 30, 2021 at 7:26 am</a></time></p> </header> <div class="comment-content"> <p>Hi,<br /> My primer length is 42 nts. (Main seq.30 nts, Rest is adapters and recognition seq.)<br /> GC= 33, Tm=64°C, HPLC purified.<br /> I am not getting my gene specific product (probably, primer dimer only)<br /> Primer seq.= GCGG TTAATTAA ATG GCA AAT TAT AAT TTC AAG TAC ATC GCC<br /> Suggestions please !!</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-19580' data-commentid="19580" data-postid="12907" data-belowelement="article-comment-19580" data-respondelement="respond" data-replyto="Reply to Manish" aria-label='Reply to Manish'>Reply</a></div> </article> </li> <li class="comment odd alt thread-even depth-1" id="comment-20775"> <article id="article-comment-20775"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/8a2423692773edcd9fab22c0c27724b4?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/8a2423692773edcd9fab22c0c27724b4?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">Inell Poullard</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-20775">May 26, 2022 at 9:00 pm</a></time></p> </header> <div class="comment-content"> <p>Napisy na blogu sa zazwyczaj pokazywane jak cechy elektroniczne w przeciwnej kolejnosci chronologicznej, z najrózniejszym wpisem pojawiajacym sie u góry strony. Posty zazwyczaj zawieraja tekst, obrazy, filmy, wykresy wiadomosci a wykresy. Tresc zapisu na blogu jest przewaznie napisana w trendzie narracyjnym, który rozbija sie osobistymi doswiadczeniami czy opiniami na okreslony temat.</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-20775' data-commentid="20775" data-postid="12907" data-belowelement="article-comment-20775" data-respondelement="respond" data-replyto="Reply to Inell Poullard" aria-label='Reply to Inell Poullard'>Reply</a></div> </article> </li> <li class="comment even thread-odd thread-alt depth-1" id="comment-21901"> <article id="article-comment-21901"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/f8d5f04ca517c0cc222c6193ed091522?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/f8d5f04ca517c0cc222c6193ed091522?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">Petrick zag</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-21901">August 29, 2022 at 7:15 am</a></time></p> </header> <div class="comment-content"> <p>Really nice content about pcr primer designer tips.Thank You for sharing such a nice post<br /> ,thanks for sharing. Good stuff!</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-21901' data-commentid="21901" data-postid="12907" data-belowelement="article-comment-21901" data-respondelement="respond" data-replyto="Reply to Petrick zag" aria-label='Reply to Petrick zag'>Reply</a></div> </article> </li> <li class="comment odd alt thread-even depth-1" id="comment-24114"> <article id="article-comment-24114"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/a57f8377c862211091931f2efba21a0a?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/a57f8377c862211091931f2efba21a0a?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">Hasan Babar</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/pcr-primer-design-tips/#comment-24114">December 20, 2022 at 5:41 pm</a></time></p> </header> <div class="comment-content"> <p>Nice job</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-24114' data-commentid="24114" data-postid="12907" data-belowelement="article-comment-24114" data-respondelement="respond" data-replyto="Reply to Hasan Babar" aria-label='Reply to Hasan Babar'>Reply</a></div> </article> </li> </ol></div> <div id="respond" class="comment-respond"> <h3 id="reply-title" class="comment-reply-title">Leave a Reply <small><a rel="nofollow" id="cancel-comment-reply-link" href="/behindthebench/pcr-primer-design-tips/#respond" style="display:none;">Cancel reply</a></small></h3><form action="https://www.thermofisher.com/blog/behindthebench/wp-comments-post.php" method="post" id="commentform" class="comment-form" novalidate><p class="comment-notes"><span id="email-notes">Your email address will not be published.</span> <span class="required-field-message">Required fields are marked <span class="required">*</span></span></p><p class="comment-form-comment"><label for="comment">Comment <span class="required">*</span></label> <textarea id="comment" name="comment" cols="45" rows="8" maxlength="65525" required></textarea></p><p class="comment-form-author"><label for="author">Name <span class="required">*</span></label> <input id="author" name="author" type="text" value="" size="30" maxlength="245" autocomplete="name" required /></p> <p class="comment-form-email"><label for="email">Email <span class="required">*</span></label> <input id="email" name="email" type="email" value="" size="30" maxlength="100" aria-describedby="email-notes" autocomplete="email" required /></p> <p class="comment-form-url"><label for="url">Website</label> <input id="url" name="url" type="url" value="" size="30" maxlength="200" autocomplete="url" /></p> <p class="form-submit"><input name="submit" type="submit" id="submit" class="submit" value="Post Comment" /> <input type='hidden' name='comment_post_ID' value='12907' id='comment_post_ID' /> <input type='hidden' name='comment_parent' id='comment_parent' value='0' /> </p><p style="display: none;"><input type="hidden" id="akismet_comment_nonce" name="akismet_comment_nonce" value="793f2b8a62" /></p><p style="display: none !important;" class="akismet-fields-container" data-prefix="ak_"><label>Δ<textarea name="ak_hp_textarea" cols="45" rows="8" maxlength="100"></textarea></label><input type="hidden" id="ak_js_2" name="ak_js" value="150"/><script>document.getElementById( "ak_js_2" ).setAttribute( "value", ( new Date() ).getTime() );</script></p></form> </div> <div class="adjacent-entry-pagination pagination"><div class="pagination-previous alignleft"><i class="fa fa-icon fa-chevron-left"></i> <a href="https://www.thermofisher.com/blog/behindthebench/improved-understanding-of-fetal-abnormalities-with-cytoscan-xon-and-exome-sequencing/" rel="prev">Improved Understanding of Fetal Abnormalities with CytoScan XON and Exome Sequencing</a></div><div class="pagination-next alignright"><a href="https://www.thermofisher.com/blog/behindthebench/precision-prescribing-with-pharmacogenomics/" rel="next">Precision Prescribing with Pharmacogenomics</a> <i class="fa fa-icon fa-chevron-right"></i></div></div></main></div></div><footer class="site-footer"><div class="wrap"><div class="creds"><p class="footer-links"><a href="https://corporate.thermofisher.com/en/footer/privacy-statement.html" target="_blank" rel="noopener noreferrer">Privacy Statement</a><a href="https://corporate.thermofisher.com/en/footer/terms-and-conditions.html" target="_blank" rel="noopener noreferrer">Terms & Conditions</a><a href="/blog/locations/">Locations</a><a href="/blog/sitemap/">Sitemap</a></p><p>© 2024 <a href="https://www.thermofisher.com">Thermo Fisher Scientific</a>. All Rights Reserved.</p></div><span class="social-links"><p>Talk to us</p><a href="https://www.facebook.com/thermofisher" class="facebook" target="_blank" rel="noopener noreferrer"><i class="fa fa-icon fa-facebook"></i></a><a href="https://www.linkedin.com/company/thermo-fisher-scientific" class="linkedin" target="_blank" rel="noopener noreferrer"><i class="fa fa-icon fa-linkedin"></i></a><a href="https://twitter.com/thermofisher" class="twitter" target="_blank" rel="noopener noreferrer"><i class="fa fa-icon fa-twitter"></i></a><a href="https://www.youtube.com/c/thermofisher" class="youtube" target="_blank" rel="noopener noreferrer"><i class="fa fa-icon fa-youtube"></i></a></span></div></footer></div><div style="display: none;"><div id="boxzilla-box-10626-content"><p><h4>Get news and research reviews on the topic of your choice, right in your inbox.</h4> </p> <p><a id="subscribe" class="button" href="#">Subscribe Now</a></p> <div id="subscribe-form"> <div class='gf_browser_ie gf_browser_ie7 gform_wrapper gform_legacy_markup_wrapper gform-theme--no-framework' data-form-theme='legacy' data-form-index='1' id='gform_wrapper_1' ><form method='post' enctype='multipart/form-data' id='gform_1' action='/blog/behindthebench/pcr-primer-design-tips/' formid='1'> <div class='gform-body gform_body'><ul id='gform_fields_1' class='gform_fields top_label form_sublabel_above description_below validation_below'><li id="field_1_4" class="gfield gfield--type-text first-name field_sublabel_above gfield--no-description field_description_below field_validation_below gfield_visibility_visible" data-js-reload="field_1_4" ><label class='gfield_label gform-field-label screen-reader-text' for='input_1_4'>First Name</label><div class='ginput_container ginput_container_text'><input name='input_4' id='input_1_4' type='text' value='' class='large' placeholder='First Name' aria-invalid="false" /> </div></li><li id="field_1_5" class="gfield gfield--type-text last-name field_sublabel_above gfield--no-description field_description_below field_validation_below gfield_visibility_visible" data-js-reload="field_1_5" ><label class='gfield_label gform-field-label screen-reader-text' for='input_1_5'>Last Name</label><div class='ginput_container ginput_container_text'><input name='input_5' id='input_1_5' type='text' value='' class='large' placeholder='Last Name' aria-invalid="false" /> </div></li><li id="field_1_2" class="gfield gfield--type-email email gfield_contains_required field_sublabel_above gfield--no-description field_description_below field_validation_below gfield_visibility_visible" data-js-reload="field_1_2" ><label class='gfield_label gform-field-label screen-reader-text' for='input_1_2'>Email<span class="gfield_required"><span class="gfield_required gfield_required_asterisk">*</span></span></label><div class='ginput_container ginput_container_email'> <input name='input_2' id='input_1_2' type='email' value='' class='large' placeholder='Email' aria-required="true" aria-invalid="false" /> </div></li><li id="field_1_6" class="gfield gfield--type-text company field_sublabel_above gfield--no-description field_description_below field_validation_below gfield_visibility_visible" data-js-reload="field_1_6" ><label class='gfield_label gform-field-label screen-reader-text' for='input_1_6'>Company</label><div class='ginput_container ginput_container_text'><input name='input_6' id='input_1_6' type='text' value='' class='large' placeholder='Company' aria-invalid="false" /> </div></li><li id="field_1_7" class="gfield gfield--type-select country gfield_contains_required field_sublabel_above gfield--no-description field_description_below field_validation_below gfield_visibility_visible" data-js-reload="field_1_7" ><label class='gfield_label gform-field-label screen-reader-text' for='input_1_7'>Select your country/region<span class="gfield_required"><span class="gfield_required gfield_required_asterisk">*</span></span></label><div class='ginput_container ginput_container_select'><select name='input_7' id='input_1_7' class='large gfield_select' aria-required="true" aria-invalid="false" ><option value='' selected='selected' class='gf_placeholder'>Select your country/region</option><option value='United States' >United States</option><option value='Canada' >Canada</option><option value='Afghanistan' >Afghanistan</option><option value='Albania' >Albania</option><option value='Algeria' >Algeria</option><option value='American Samoa' >American Samoa</option><option value='Andorra' >Andorra</option><option value='Angola' >Angola</option><option value='Anguilla' >Anguilla</option><option value='Antarctica' >Antarctica</option><option value='Antigua and Barbuda' >Antigua and Barbuda</option><option value='Argentina' >Argentina</option><option value='Armenia' >Armenia</option><option value='Aruba' >Aruba</option><option value='Australia' >Australia</option><option value='Austria' >Austria</option><option value='Azerbaijan' >Azerbaijan</option><option value='Bahamas' >Bahamas</option><option value='Bahrain' >Bahrain</option><option value='Bangladesh' >Bangladesh</option><option value='Barbados' >Barbados</option><option value='Belarus' >Belarus</option><option value='Belgium' >Belgium</option><option value='Belize' >Belize</option><option value='Benin' >Benin</option><option value='Bermuda' >Bermuda</option><option value='Bhutan' >Bhutan</option><option value='Bolivia' >Bolivia</option><option value='Bosnia and Herzegovina' >Bosnia and Herzegovina</option><option value='Botswana' >Botswana</option><option value='Bouvet Island' >Bouvet Island</option><option value='Brazil' >Brazil</option><option value='British Indian Ocean Territory' >British Indian Ocean Territory</option><option value='Brunei Darussalam' >Brunei Darussalam</option><option value='Bulgaria' >Bulgaria</option><option value='Burkina Faso' >Burkina Faso</option><option value='Burundi' >Burundi</option><option value='Cambodia' >Cambodia</option><option value='Cameroon' >Cameroon</option><option value='Cape Verde' >Cape Verde</option><option value='Cayman Islands' >Cayman Islands</option><option value='Central African Republic' >Central African Republic</option><option value='Chad' >Chad</option><option value='Chile' >Chile</option><option value='China' >China</option><option value='Christmas Island' >Christmas Island</option><option value='Cocos (Keeling) Islands' >Cocos (Keeling) Islands</option><option value='Colombia' >Colombia</option><option value='Comoros' >Comoros</option><option value='Congo' >Congo</option><option value='Congo, The Democratic Republic of' >Congo, The Democratic Republic of</option><option value='Cook Islands' >Cook Islands</option><option value='Costa Rica' >Costa Rica</option><option value='Cote D'Ivoire' >Cote D'Ivoire</option><option value='Croatia' >Croatia</option><option value='Cuba' >Cuba</option><option value='Cyprus' >Cyprus</option><option value='Czech Republic' >Czech Republic</option><option value='Denmark' >Denmark</option><option value='Djibouti' >Djibouti</option><option value='Dominica' >Dominica</option><option value='Dominican Republic' >Dominican Republic</option><option value='East Timor' >East Timor</option><option value='Ecuador' >Ecuador</option><option value='Egypt' >Egypt</option><option value='El Salvador' >El Salvador</option><option value='Equatorial Guinea' >Equatorial Guinea</option><option value='Eritrea' >Eritrea</option><option value='Estonia' >Estonia</option><option value='Ethiopia' >Ethiopia</option><option value='Falkland Islands (Malvinas)' >Falkland Islands (Malvinas)</option><option value='Faroe Islands' >Faroe Islands</option><option value='Fiji' >Fiji</option><option value='Finland' >Finland</option><option value='Fmr Yugoslav Rep of Macedonia' >Fmr Yugoslav Rep of Macedonia</option><option value='France' >France</option><option value='French Guiana' >French Guiana</option><option value='French Polynesia' >French Polynesia</option><option value='French Southern Territories' >French Southern Territories</option><option value='Gabon' >Gabon</option><option value='Gambia' >Gambia</option><option value='Georgia' >Georgia</option><option value='Germany' >Germany</option><option value='Ghana' >Ghana</option><option value='Gibraltar' >Gibraltar</option><option value='Greece' >Greece</option><option value='Greenland' >Greenland</option><option value='Grenada' >Grenada</option><option value='Guadeloupe' >Guadeloupe</option><option value='Guam' >Guam</option><option value='Guatemala' >Guatemala</option><option value='Guinea' >Guinea</option><option value='Guinea-Bissau' >Guinea-Bissau</option><option value='Guyana' >Guyana</option><option value='Haiti' >Haiti</option><option value='Heard and McDonald Islands' >Heard and McDonald Islands</option><option value='Holy See (Vatican City State)' >Holy See (Vatican City State)</option><option value='Honduras' >Honduras</option><option value='Hong Kong' >Hong Kong</option><option value='Hungary' >Hungary</option><option value='Iceland' >Iceland</option><option value='India' >India</option><option value='Indonesia' >Indonesia</option><option value='Iran (Islamic Republic Of)' >Iran (Islamic Republic Of)</option><option value='Iraq' >Iraq</option><option value='Ireland' >Ireland</option><option value='Israel' >Israel</option><option value='Italy' >Italy</option><option value='Jamaica' >Jamaica</option><option value='Japan' >Japan</option><option value='Jordan' >Jordan</option><option value='Kazakstan' >Kazakstan</option><option value='Kenya' >Kenya</option><option value='Kiribati' >Kiribati</option><option value='Korea, Democratic People's Rep' >Korea, Democratic People's Rep</option><option value='Korea, Republic of' >Korea, Republic of</option><option value='Kuwait' >Kuwait</option><option value='Kyrgyzstan' >Kyrgyzstan</option><option value='Lao People's Democratic Rep' >Lao People's Democratic Rep</option><option value='Latvia' >Latvia</option><option value='Lebanon' >Lebanon</option><option value='Lesotho' >Lesotho</option><option value='Liberia' >Liberia</option><option value='Libyan Arab Jamahiriya' >Libyan Arab Jamahiriya</option><option value='Liechtenstein' >Liechtenstein</option><option value='Lithuania' >Lithuania</option><option value='Luxembourg' >Luxembourg</option><option value='Macau' >Macau</option><option value='Madagascar' >Madagascar</option><option value='Malawi' >Malawi</option><option value='Malaysia' >Malaysia</option><option value='Maldives' >Maldives</option><option value='Mali' >Mali</option><option value='Malta' >Malta</option><option value='Marshall Islands' >Marshall Islands</option><option value='Martinique' >Martinique</option><option value='Mauritania' >Mauritania</option><option value='Mauritius' >Mauritius</option><option value='Mayotte' >Mayotte</option><option value='Mexico' >Mexico</option><option value='Micronesia, Federated States' >Micronesia, Federated States</option><option value='Moldova, Republic of' >Moldova, Republic of</option><option value='Monaco' >Monaco</option><option value='Mongolia' >Mongolia</option><option value='Montserrat' >Montserrat</option><option value='Morocco' >Morocco</option><option value='Mozambique' >Mozambique</option><option value='Myanmar' >Myanmar</option><option value='Namibia' >Namibia</option><option value='Nauru' >Nauru</option><option value='Nepal' >Nepal</option><option value='Netherlands' >Netherlands</option><option value='Netherlands Antilles' >Netherlands Antilles</option><option value='New Caledonia' >New Caledonia</option><option value='New Zealand' >New Zealand</option><option value='Nicaragua' >Nicaragua</option><option value='Niger' >Niger</option><option value='Nigeria' >Nigeria</option><option value='Niue' >Niue</option><option value='Norfolk Island' >Norfolk Island</option><option value='Northern Mariana Islands' >Northern Mariana Islands</option><option value='Norway' >Norway</option><option value='Oman' >Oman</option><option value='Pakistan' >Pakistan</option><option value='Palau' >Palau</option><option value='Panama' >Panama</option><option value='Papua New Guinea' >Papua New Guinea</option><option value='Paraguay' >Paraguay</option><option value='Peru' >Peru</option><option value='Philippines' >Philippines</option><option value='Pitcairn' >Pitcairn</option><option value='Poland' >Poland</option><option value='Portugal' >Portugal</option><option value='Puerto Rico' >Puerto Rico</option><option value='Qatar' >Qatar</option><option value='Reunion' >Reunion</option><option value='Romania' >Romania</option><option value='Russian Federation' >Russian Federation</option><option value='Rwanda' >Rwanda</option><option value='Saint Helena' >Saint Helena</option><option value='Saint Kitts and Nevis' >Saint Kitts and Nevis</option><option value='Saint Lucia' >Saint Lucia</option><option value='Saint Pierre and Miquelon' >Saint Pierre and Miquelon</option><option value='Samoa' >Samoa</option><option value='San Marino' >San Marino</option><option value='Sao Tome and Principe' >Sao Tome and Principe</option><option value='Saudi Arabia' >Saudi Arabia</option><option value='Senegal' >Senegal</option><option value='Seychelles' >Seychelles</option><option value='Sierra Leone' >Sierra Leone</option><option value='Singapore' >Singapore</option><option value='Slovakia' >Slovakia</option><option value='Slovenia' >Slovenia</option><option value='Solomon Islands' >Solomon Islands</option><option value='Somalia' >Somalia</option><option value='South Africa' >South Africa</option><option value='Spain' >Spain</option><option value='Sri Lanka' >Sri Lanka</option><option value='Sth Georgia & Sth Sandwich Is' >Sth Georgia & Sth Sandwich Is</option><option value='St Vincent and the Grenadines' >St Vincent and the Grenadines</option><option value='Sudan' >Sudan</option><option value='Suriname' >Suriname</option><option value='Svalbard and Jan Mayen' >Svalbard and Jan Mayen</option><option value='Swaziland' >Swaziland</option><option value='Sweden' >Sweden</option><option value='Switzerland' >Switzerland</option><option value='Syrian Arab Republic' >Syrian Arab Republic</option><option value='Taiwan, Province of China' >Taiwan, Province of China</option><option value='Tajikistan' >Tajikistan</option><option value='Tanzania, United Republic of' >Tanzania, United Republic of</option><option value='Thailand' >Thailand</option><option value='Togo' >Togo</option><option value='Tokelau' >Tokelau</option><option value='Tonga' >Tonga</option><option value='Trinidad and Tobago' >Trinidad and Tobago</option><option value='Tunisia' >Tunisia</option><option value='Turkey' >Turkey</option><option value='Turkmenistan' >Turkmenistan</option><option value='Turks and Caicos Islands' >Turks and Caicos Islands</option><option value='Tuvalu' >Tuvalu</option><option value='Uganda' >Uganda</option><option value='Ukraine' >Ukraine</option><option value='United Arab Emirates' >United Arab Emirates</option><option value='United Kingdom' >United Kingdom</option><option value='Uruguay' >Uruguay</option><option value='US Minor Outlying Islands' >US Minor Outlying Islands</option><option value='Uzbekistan' >Uzbekistan</option><option value='Vanuatu' >Vanuatu</option><option value='Venezuela' >Venezuela</option><option value='Vietnam' >Vietnam</option><option value='Virgin Islands (British)' >Virgin Islands (British)</option><option value='Virgin Islands (U.S.)' >Virgin Islands (U.S.)</option><option value='Wallis and Futuna Islands' >Wallis and Futuna Islands</option><option value='Western Sahara' >Western Sahara</option><option value='Yemen' >Yemen</option><option value='Yugoslavia' >Yugoslavia</option><option value='Zambia' >Zambia</option><option value='Zimbabwe' >Zimbabwe</option></select></div></li><li id="field_1_8" class="gfield gfield--type-select sub-category gfield_contains_required field_sublabel_above gfield--no-description field_description_below field_validation_below gfield_visibility_visible" data-js-reload="field_1_8" ><label class='gfield_label gform-field-label screen-reader-text' for='input_1_8'>Pick a category<span class="gfield_required"><span class="gfield_required gfield_required_asterisk">*</span></span></label><div class='ginput_container ginput_container_select'><select name='input_8' id='input_1_8' class='large gfield_select' aria-required="true" aria-invalid="false" ><option value='' selected='selected' class='gf_placeholder'>Pick a category</option><option value='Accelerating Microscopy' >Accelerating Microscopy</option><option value='Advancing Materials' >Advancing Materials</option><option value='Advancing Mining' >Advancing Mining</option><option value='Analyzing Metals' >Analyzing Metals</option><option value='Behind the Bench' selected='selected'>Behind the Bench</option><option value='Examining Food' >Examining Food</option><option value='Identifying Threats' >Identifying Threats</option><option value='Life in the Lab' >Life in the Lab</option></select></div></li><li id="field_1_9" class="gfield gfield--type-checkbox gfield--type-choice gfield_contains_required field_sublabel_above gfield--no-description field_description_below field_validation_below gfield_visibility_visible" data-js-reload="field_1_9" ><label class='gfield_label gform-field-label screen-reader-text gfield_label_before_complex' ><span class="gfield_required"><span class="gfield_required gfield_required_asterisk">*</span></span></label><div class='ginput_container ginput_container_checkbox'><ul class='gfield_checkbox' id='input_1_9'><li class='gchoice gchoice_1_9_1'> <input class='gfield-choice-input' name='input_9.1' type='checkbox' value='1' id='choice_1_9_1' /> <label for='choice_1_9_1' id='label_1_9_1' class='gform-field-label gform-field-label--type-inline'>I would like to receive information about content, events, products, services and promotions from Thermo Fisher Scientific and its affiliates. I agree for the Thermo Fisher Scientific group (thermofisher.com/legalentities) to contact me by email and/or telephone to inform me of events, products, services and/or promotions offered in connection with the brands Thermo Scientific™, Applied Biosystems™, Invitrogen™, Gibco™, Ion Torrent ™, Unity Lab Services™, Fisher Scientifc™. I can withdraw my consent and unsubscribe at any time by emailing reply@thermofisher.com By submitting my data, I give consent to the collection, processing and use of my personal data in accordance with the Thermo Fisher Scientific Policy (thermofisher.com/privacypolicy).</label> </li></ul></div></li><li id="field_1_10" class="gfield gfield--type-hidden gform_hidden field_sublabel_above gfield--no-description field_description_below field_validation_below gfield_visibility_visible" data-js-reload="field_1_10" ><div class='ginput_container ginput_container_text'><input name='input_10' id='input_1_10' type='hidden' class='gform_hidden' aria-invalid="false" value='Behind the Bench' /></div></li><li id="field_1_11" class="gfield gfield--type-honeypot gform_validation_container field_sublabel_above gfield--has-description field_description_below field_validation_below gfield_visibility_visible" data-js-reload="field_1_11" ><label class='gfield_label gform-field-label' for='input_1_11'>Comments</label><div class='ginput_container'><input name='input_11' id='input_1_11' type='text' value='' autocomplete='new-password'/></div><div class='gfield_description' id='gfield_description_1_11'>This field is for validation purposes and should be left unchanged.</div></li></ul></div> <div class='gform_footer top_label'> <input type='submit' id='gform_submit_button_1' class='gform_button button' value='Subscribe' onclick='if(window["gf_submitting_1"]){return false;} if( !jQuery("#gform_1")[0].checkValidity || jQuery("#gform_1")[0].checkValidity()){window["gf_submitting_1"]=true;} ' onkeypress='if( event.keyCode == 13 ){ if(window["gf_submitting_1"]){return false;} if( !jQuery("#gform_1")[0].checkValidity || jQuery("#gform_1")[0].checkValidity()){window["gf_submitting_1"]=true;} jQuery("#gform_1").trigger("submit",[true]); }' /> <input type='hidden' class='gform_hidden' name='is_submit_1' value='1' /> <input type='hidden' class='gform_hidden' name='gform_submit' value='1' /> <input type='hidden' class='gform_hidden' name='gform_unique_id' value='' /> <input type='hidden' class='gform_hidden' name='state_1' value='WyJbXSIsImFiYmI5YzY2YWJjNDlmYzYwZjUzMTBiZjQ0NGIwZGNmIl0=' /> <input type='hidden' class='gform_hidden' name='gform_target_page_number_1' id='gform_target_page_number_1' value='0' /> <input type='hidden' class='gform_hidden' name='gform_source_page_number_1' id='gform_source_page_number_1' value='1' /> <input type='hidden' name='gform_field_values' value='' /> </div> <p style="display: none !important;" class="akismet-fields-container" data-prefix="ak_"><label>Δ<textarea name="ak_hp_textarea" cols="45" rows="8" maxlength="100"></textarea></label><input type="hidden" id="ak_js_3" name="ak_js" value="184"/><script>document.getElementById( "ak_js_3" ).setAttribute( "value", ( new Date() ).getTime() );</script></p></form> </div><script type="text/javascript"> /* <![CDATA[ */ gform.initializeOnLoaded( function() {gformInitSpinner( 1, 'https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/images/spinner.svg', true );jQuery('#gform_ajax_frame_1').on('load',function(){var contents = jQuery(this).contents().find('*').html();var is_postback = contents.indexOf('GF_AJAX_POSTBACK') >= 0;if(!is_postback){return;}var form_content = jQuery(this).contents().find('#gform_wrapper_1');var is_confirmation = jQuery(this).contents().find('#gform_confirmation_wrapper_1').length > 0;var is_redirect = contents.indexOf('gformRedirect(){') >= 0;var is_form = form_content.length > 0 && ! is_redirect && ! is_confirmation;var mt = parseInt(jQuery('html').css('margin-top'), 10) + parseInt(jQuery('body').css('margin-top'), 10) + 100;if(is_form){jQuery('#gform_wrapper_1').html(form_content.html());if(form_content.hasClass('gform_validation_error')){jQuery('#gform_wrapper_1').addClass('gform_validation_error');} else {jQuery('#gform_wrapper_1').removeClass('gform_validation_error');}setTimeout( function() { /* delay the scroll by 50 milliseconds to fix a bug in chrome */ }, 50 );if(window['gformInitDatepicker']) {gformInitDatepicker();}if(window['gformInitPriceFields']) {gformInitPriceFields();}var current_page = jQuery('#gform_source_page_number_1').val();gformInitSpinner( 1, 'https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/images/spinner.svg', true );jQuery(document).trigger('gform_page_loaded', [1, current_page]);window['gf_submitting_1'] = false;}else if(!is_redirect){var confirmation_content = jQuery(this).contents().find('.GF_AJAX_POSTBACK').html();if(!confirmation_content){confirmation_content = contents;}jQuery('#gform_wrapper_1').replaceWith(confirmation_content);jQuery(document).trigger('gform_confirmation_loaded', [1]);window['gf_submitting_1'] = false;wp.a11y.speak(jQuery('#gform_confirmation_message_1').text());}else{jQuery('#gform_1').append(contents);if(window['gformRedirect']) {gformRedirect();}}jQuery(document).trigger("gform_pre_post_render", [{ formId: "1", currentPage: "current_page", abort: function() { this.preventDefault(); } }]); if (event && event.defaultPrevented) { return; } const gformWrapperDiv = document.getElementById( "gform_wrapper_1" ); if ( gformWrapperDiv ) { const visibilitySpan = document.createElement( "span" ); visibilitySpan.id = "gform_visibility_test_1"; gformWrapperDiv.insertAdjacentElement( "afterend", visibilitySpan ); } const visibilityTestDiv = document.getElementById( "gform_visibility_test_1" ); let postRenderFired = false; function triggerPostRender() { if ( postRenderFired ) { return; } postRenderFired = true; jQuery( document ).trigger( 'gform_post_render', [1, current_page] ); gform.utils.trigger( { event: 'gform/postRender', native: false, data: { formId: 1, currentPage: current_page } } ); if ( visibilityTestDiv ) { visibilityTestDiv.parentNode.removeChild( visibilityTestDiv ); } } function debounce( func, wait, immediate ) { var timeout; return function() { var context = this, args = arguments; var later = function() { timeout = null; if ( !immediate ) func.apply( context, args ); }; var callNow = immediate && !timeout; clearTimeout( timeout ); timeout = setTimeout( later, wait ); if ( callNow ) func.apply( context, args ); }; } const debouncedTriggerPostRender = debounce( function() { triggerPostRender(); }, 200 ); if ( visibilityTestDiv && visibilityTestDiv.offsetParent === null ) { const observer = new MutationObserver( ( mutations ) => { mutations.forEach( ( mutation ) => { if ( mutation.type === 'attributes' && visibilityTestDiv.offsetParent !== null ) { debouncedTriggerPostRender(); observer.disconnect(); } }); }); observer.observe( document.body, { attributes: true, childList: false, subtree: true, attributeFilter: [ 'style', 'class' ], }); } else { triggerPostRender(); } } );} ); /* ]]> */ </script> </div> </div></div><script>if(window.location.search.indexOf('post_id')!=-1){ window.close();}jQuery(document).ready(function ($) { $('p').mashSelectionSharer();});</script>  <script type="text/html" id="wpls--tmpl"> <li class="search-result"> <a href="<%= post.link %>"> <div class="wpls--item-title-wrap"> <h4 class="wpls--item-title"><%= post.title %></h4> </div> </a> </li> </script> <script type="text/javascript"> /* MonsterInsights Scroll Tracking */ if ( typeof(jQuery) !== 'undefined' ) { jQuery( document ).ready(function(){ function monsterinsights_scroll_tracking_load() { if ( ( typeof(__gaTracker) !== 'undefined' && __gaTracker && __gaTracker.hasOwnProperty( "loaded" ) && __gaTracker.loaded == true ) || ( typeof(__gtagTracker) !== 'undefined' && __gtagTracker ) ) { (function(factory) { factory(jQuery); }(function($) { /* Scroll Depth */ "use strict"; var defaults = { percentage: true }; var $window = $(window), cache = [], scrollEventBound = false, lastPixelDepth = 0; /* * Plugin */ $.scrollDepth = function(options) { var startTime = +new Date(); options = $.extend({}, defaults, options); /* * Functions */ function sendEvent(action, label, scrollDistance, timing) { if ( 'undefined' === typeof MonsterInsightsObject || 'undefined' === typeof MonsterInsightsObject.sendEvent ) { return; } var paramName = action.toLowerCase(); var fieldsArray = { send_to: 'G-K4QTN4KM25', non_interaction: true }; fieldsArray[paramName] = label; if (arguments.length > 3) { fieldsArray.scroll_timing = timing MonsterInsightsObject.sendEvent('event', 'scroll_depth', fieldsArray); } else { MonsterInsightsObject.sendEvent('event', 'scroll_depth', fieldsArray); } } function calculateMarks(docHeight) { return { '25%' : parseInt(docHeight * 0.25, 10), '50%' : parseInt(docHeight * 0.50, 10), '75%' : parseInt(docHeight * 0.75, 10), /* Cushion to trigger 100% event in iOS */ '100%': docHeight - 5 }; } function checkMarks(marks, scrollDistance, timing) { /* Check each active mark */ $.each(marks, function(key, val) { if ( $.inArray(key, cache) === -1 && scrollDistance >= val ) { sendEvent('Percentage', key, scrollDistance, timing); cache.push(key); } }); } function rounded(scrollDistance) { /* Returns String */ return (Math.floor(scrollDistance/250) * 250).toString(); } function init() { bindScrollDepth(); } /* * Public Methods */ /* Reset Scroll Depth with the originally initialized options */ $.scrollDepth.reset = function() { cache = []; lastPixelDepth = 0; $window.off('scroll.scrollDepth'); bindScrollDepth(); }; /* Add DOM elements to be tracked */ $.scrollDepth.addElements = function(elems) { if (typeof elems == "undefined" || !$.isArray(elems)) { return; } $.merge(options.elements, elems); /* If scroll event has been unbound from window, rebind */ if (!scrollEventBound) { bindScrollDepth(); } }; /* Remove DOM elements currently tracked */ $.scrollDepth.removeElements = function(elems) { if (typeof elems == "undefined" || !$.isArray(elems)) { return; } $.each(elems, function(index, elem) { var inElementsArray = $.inArray(elem, options.elements); var inCacheArray = $.inArray(elem, cache); if (inElementsArray != -1) { options.elements.splice(inElementsArray, 1); } if (inCacheArray != -1) { cache.splice(inCacheArray, 1); } }); }; /* * Throttle function borrowed from: * Underscore.js 1.5.2 * http://underscorejs.org * (c) 2009-2013 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors * Underscore may be freely distributed under the MIT license. */ function throttle(func, wait) { var context, args, result; var timeout = null; var previous = 0; var later = function() { previous = new Date; timeout = null; result = func.apply(context, args); }; return function() { var now = new Date; if (!previous) previous = now; var remaining = wait - (now - previous); context = this; args = arguments; if (remaining <= 0) { clearTimeout(timeout); timeout = null; previous = now; result = func.apply(context, args); } else if (!timeout) { timeout = setTimeout(later, remaining); } return result; }; } /* * Scroll Event */ function bindScrollDepth() { scrollEventBound = true; $window.on('scroll.scrollDepth', throttle(function() { /* * We calculate document and window height on each scroll event to * account for dynamic DOM changes. */ var docHeight = $(document).height(), winHeight = window.innerHeight ? window.innerHeight : $window.height(), scrollDistance = $window.scrollTop() + winHeight, /* Recalculate percentage marks */ marks = calculateMarks(docHeight), /* Timing */ timing = +new Date - startTime; checkMarks(marks, scrollDistance, timing); }, 500)); } init(); }; /* UMD export */ return $.scrollDepth; })); jQuery.scrollDepth(); } else { setTimeout(monsterinsights_scroll_tracking_load, 200); } } monsterinsights_scroll_tracking_load(); }); } /* End MonsterInsights Scroll Tracking */ </script><script type="text/javascript" id="wpls-script-js-extra"> /* <![CDATA[ */ var wp_search_vars = {"helperText":"one more character","api":"https:\/\/admin.acceleratingscience.com\/wp-json\/as\/v1\/all-posts\/9"}; /* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/wp-search-live/public/assets/js/wp-live-search.js?ver=0.9" id="wpls-script-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/comment-reply.min.js?ver=6.6.1" id="comment-reply-js" async="async" data-wp-strategy="async"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/dist/dom-ready.min.js?ver=f77871ff7694fffea381" id="wp-dom-ready-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/dist/hooks.min.js?ver=2810c76e705dd1a53b18" id="wp-hooks-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/dist/i18n.min.js?ver=5e580eb46a90c2b997e6" id="wp-i18n-js"></script> <script type="text/javascript" id="wp-i18n-js-after"> /* <![CDATA[ */ wp.i18n.setLocaleData( { 'text direction\u0004ltr': [ 'ltr' ] } ); /* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/dist/a11y.min.js?ver=d90eebea464f6c09bfd5" id="wp-a11y-js"></script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/js/placeholders.jquery.min.js?ver=2.8.17" id="gform_placeholder-js"></script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/assets/js/dist/vendor-theme.min.js?ver=54e7080aa7a02c83aa61fae430b9d869" id="gform_gravityforms_theme_vendors-js"></script> <script type="text/javascript" id="gform_gravityforms_theme-js-extra"> /* <![CDATA[ */ var gform_theme_config = {"common":{"form":{"honeypot":{"version_hash":"4a792b070322e711c2521ee9802c04ea"}}},"hmr_dev":"","public_path":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/plugins\/gravityforms\/assets\/js\/dist\/"}; /* ]]> */ </script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/assets/js/dist/scripts-theme.min.js?ver=bab19fd84843dabc070e73326d787910" id="gform_gravityforms_theme-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/jquery/ui/core.min.js?ver=1.13.3" id="jquery-ui-core-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/jquery/ui/tabs.min.js?ver=1.13.3" id="jquery-ui-tabs-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/themes/accelerating-science-blogs/js/scripts.js?ver=1.2.9.3" id="scripts-js"></script> <script type="text/javascript" id="boxzilla-js-extra"> /* <![CDATA[ */ var boxzilla_options = {"testMode":"","boxes":[{"id":10626,"icon":"×","content":"","css":{"position":"bottom-right"},"trigger":{"method":"percentage","value":35},"animation":"fade","cookie":{"triggered":0,"dismissed":0},"rehide":false,"position":"bottom-right","screenWidthCondition":null,"closable":true,"post":{"id":10626,"title":"Single Call to Action","slug":"single-call-to-action"}}]}; /* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/boxzilla/assets/js/script.js?ver=3.3.1" id="boxzilla-js"></script> <script defer type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/akismet/_inc/akismet-frontend.js?ver=1722950842" id="akismet-frontend-js"></script> <script type="text/javascript"> /* <![CDATA[ */ gform.initializeOnLoaded( function() { jQuery(document).on('gform_post_render', function(event, formId, currentPage){if(formId == 1) {gformInitChosenFields('#input_1_7,#input_1_8','No results matched');if(typeof Placeholders != 'undefined'){ Placeholders.enable(); }} } );jQuery(document).on('gform_post_conditional_logic', function(event, formId, fields, isInit){gformInitChosenFields('#input_1_7,#input_1_8','No results matched');} ) } ); /* ]]> */ </script> <script type="text/javascript"> /* <![CDATA[ */ gform.initializeOnLoaded( function() {jQuery(document).trigger("gform_pre_post_render", [{ formId: "1", currentPage: "1", abort: function() { this.preventDefault(); } }]); if (event && event.defaultPrevented) { return; } const gformWrapperDiv = document.getElementById( "gform_wrapper_1" ); if ( gformWrapperDiv ) { const visibilitySpan = document.createElement( "span" ); visibilitySpan.id = "gform_visibility_test_1"; gformWrapperDiv.insertAdjacentElement( "afterend", visibilitySpan ); } const visibilityTestDiv = document.getElementById( "gform_visibility_test_1" ); let postRenderFired = false; function triggerPostRender() { if ( postRenderFired ) { return; } postRenderFired = true; jQuery( document ).trigger( 'gform_post_render', [1, 1] ); gform.utils.trigger( { event: 'gform/postRender', native: false, data: { formId: 1, currentPage: 1 } } ); if ( visibilityTestDiv ) { visibilityTestDiv.parentNode.removeChild( visibilityTestDiv ); } } function debounce( func, wait, immediate ) { var timeout; return function() { var context = this, args = arguments; var later = function() { timeout = null; if ( !immediate ) func.apply( context, args ); }; var callNow = immediate && !timeout; clearTimeout( timeout ); timeout = setTimeout( later, wait ); if ( callNow ) func.apply( context, args ); }; } const debouncedTriggerPostRender = debounce( function() { triggerPostRender(); }, 200 ); if ( visibilityTestDiv && visibilityTestDiv.offsetParent === null ) { const observer = new MutationObserver( ( mutations ) => { mutations.forEach( ( mutation ) => { if ( mutation.type === 'attributes' && visibilityTestDiv.offsetParent !== null ) { debouncedTriggerPostRender(); observer.disconnect(); } }); }); observer.observe( document.body, { attributes: true, childList: false, subtree: true, attributeFilter: [ 'style', 'class' ], }); } else { triggerPostRender(); } } ); /* ]]> */ </script> <script type="text/javascript" src="/-JVF2Mt77XrPue0oWQ_DN-r_/XEYukNG8mrG8EimE/LFhk/MBsdTQN/rVQM"></script></body></html>