{"id":495,"date":"2026-01-01T11:30:32","date_gmt":"2026-01-01T11:30:32","guid":{"rendered":"https:\/\/allabio.tech\/?page_id=495"},"modified":"2026-01-16T17:13:11","modified_gmt":"2026-01-16T17:13:11","slug":"tr-fret-time-resolved-fluorescence-resonance-energy-transfer","status":"publish","type":"page","link":"https:\/\/allabio.tech\/index.php\/tr-fret-time-resolved-fluorescence-resonance-energy-transfer\/","title":{"rendered":"TR-FRET (Time-Resolved Fluorescence Resonance Energy Transfer)"},"content":{"rendered":"\n<p><strong>TR-FRET (Time-Resolved Fluorescence Resonance Energy Transfer)<\/strong> is a powerful homogeneous detection technology designed for sensitive, quantitative analysis of biomolecular interactions. By integrating classical FRET with time-resolved fluorescence detection, TR-FRET effectively suppresses background autofluorescence and delivers exceptional signal-to-noise performance\u2014even in complex biological systems.<\/p>\n\n\n\n<p>In a TR-FRET assay, two interacting molecules are brought into proximity through direct binding or molecular recognition. One is associated with a long-lifetime lanthanide <strong>donor<\/strong> (such as europium or terbium), while the other carries a compatible <strong>acceptor<\/strong> fluorophore. Upon excitation, energy transfer occurs only when the two labels are within nanometer distance, generating a highly specific fluorescence signal proportional to the interaction strength.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"491\" src=\"https:\/\/allabio.tech\/wp-content\/uploads\/2026\/01\/\u5c4f\u5e55\u622a\u56fe-2026-01-16-171107-1024x491.jpg\" alt=\"\" class=\"wp-image-540\" srcset=\"https:\/\/allabio.tech\/wp-content\/uploads\/2026\/01\/\u5c4f\u5e55\u622a\u56fe-2026-01-16-171107-1024x491.jpg 1024w, https:\/\/allabio.tech\/wp-content\/uploads\/2026\/01\/\u5c4f\u5e55\u622a\u56fe-2026-01-16-171107-300x144.jpg 300w, https:\/\/allabio.tech\/wp-content\/uploads\/2026\/01\/\u5c4f\u5e55\u622a\u56fe-2026-01-16-171107-768x368.jpg 768w, https:\/\/allabio.tech\/wp-content\/uploads\/2026\/01\/\u5c4f\u5e55\u622a\u56fe-2026-01-16-171107-1536x737.jpg 1536w, https:\/\/allabio.tech\/wp-content\/uploads\/2026\/01\/\u5c4f\u5e55\u622a\u56fe-2026-01-16-171107.jpg 1989w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Key Advantages<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Homogeneous, mix-and-read workflow<\/strong> \u2013 no washing or separation steps<\/li>\n\n\n\n<li><strong>Ultra-low background<\/strong> via time-gated detection<\/li>\n\n\n\n<li><strong>High sensitivity and reproducibility<\/strong><\/li>\n\n\n\n<li><strong>Stable signals<\/strong> with flexible readout timing<\/li>\n\n\n\n<li><strong>Easily scalable<\/strong> from 96-well assays to 384- and 1536-well HTS formats<\/li>\n\n\n\n<li><strong>Excellent tolerance<\/strong> to DMSO, buffers, and assay additives<\/li>\n<\/ul>\n\n\n\n<p>TR-FRET is particularly well suited for applications where accuracy, throughput, and robustness must coexist.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Applications<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Protein\u2013protein interaction (PPI) analysis<\/li>\n\n\n\n<li>Receptor\u2013ligand binding studies<\/li>\n\n\n\n<li>Antibody\u2013antigen interaction assays<\/li>\n\n\n\n<li>Competitive binding and inhibitor screening<\/li>\n\n\n\n<li>High-throughput drug discovery and assay development<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>TR-FRET (Time-Resolved Fluorescence Resonance Energy Tr [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-495","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/allabio.tech\/index.php\/wp-json\/wp\/v2\/pages\/495","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/allabio.tech\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/allabio.tech\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/allabio.tech\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/allabio.tech\/index.php\/wp-json\/wp\/v2\/comments?post=495"}],"version-history":[{"count":2,"href":"https:\/\/allabio.tech\/index.php\/wp-json\/wp\/v2\/pages\/495\/revisions"}],"predecessor-version":[{"id":541,"href":"https:\/\/allabio.tech\/index.php\/wp-json\/wp\/v2\/pages\/495\/revisions\/541"}],"wp:attachment":[{"href":"https:\/\/allabio.tech\/index.php\/wp-json\/wp\/v2\/media?parent=495"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}