{"id":43896,"date":"2023-03-13T08:37:52","date_gmt":"2023-03-13T09:37:52","guid":{"rendered":"https:\/\/peymantaeidi.net\/stem-cell\/?p=43896"},"modified":"2023-03-13T09:39:17","modified_gmt":"2023-03-13T09:39:17","slug":"access-gained-to-new-fluorescent-materials","status":"publish","type":"post","link":"https:\/\/peymantaeidi.net\/stem-cell\/2023\/03\/13\/access-gained-to-new-fluorescent-materials\/","title":{"rendered":"Access Gained to New Fluorescent Materials"},"content":{"rendered":"<div><img decoding=\"async\" src=\"https:\/\/peymantaeidi.net\/stem-cell\/wp-content\/uploads\/2023\/03\/access-gained-to-new-fluorescent-materials-371045-640x360-1.jpg\" class=\"ff-og-image-inserted\" alt=\"image\" \/><\/div>\n<div>\n<div id=\"placeholder-audio-player\" class=\"sc-kIeSZW qPHQt\">\n<div class=\"sc-hOqruk GSyvG\">\n<div class=\"sc-dtwnrN ikvCsJ\">Listen with <\/p>\n<p>Speechify\n                <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p>        <a target=\"_blank\" href=\"https:\/\/speechify.com\/?utm_campaign=inline-player&amp;utm_source=Technology+Networks&amp;utm_medium=speechify-api&amp;landing_url=https%3A%2F%2Fspeechify.com%2Ftext-to-speech-online%2F\" rel=\"noopener\"><\/p>\n<p>        <\/a>\n            <\/div>\n<div class=\"audio-article-overlay audio-article\">\n<div class=\"audio-article-overlay-inner\">\n<p>\n                    Register for FREE to listen to this article\n                <\/p>\n<div>\n<p><button class=\"gtm-event-click\" data-eventcategory=\"none\"><br \/>\n    Listen Now<br \/>\n<\/button>\n<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<p>Thank you. Listen to this article using the player above. <span>\u2716<\/span><\/p>\n<\/div>\n<div>\n<div class=\"top\">\n        <\/p>\n<div class=\"base_section_title\">\n<p>\n            Want to listen to this article for FREE?\n        <\/p>\n<\/div>\n<p>\n            Complete the form below to unlock access to ALL audio articles.\n        <\/p>\n<\/p><\/div>\n<\/div>\n<div id=\"inner_content_body_text\">\n<p><span>Fluorescence is a fascinating natural phenomenon. It is based on the fact that certain materials can absorb light of a certain wavelength and then emit light of a different wavelength. Fluorescent materials play an important role in our everyday lives, for example in modern screens. Due to the high demand for applications, science is constantly striving to produce new and easily accessible molecules with high fluorescence efficiency. Chemist Professor Evamarie Hey-Hawkins from Leipzig University and her colleagues have specialised in a particular class of fluorescent materials \u2013 phospholes. These consist of hydrocarbon frameworks with a central phosphorus atom. In experiments with this substance, Nils K\u00f6nig from Hey-Hawkins\u2019 working group has found access to new fluorescent materials. He has now published his findings in the journal \u201cChemical Science\u201d.<\/span><\/p>\n<div>\n<div class=\"featuredVendors\">\n<div class=\"featuredVendorInner\">\n<div class=\"row\">\n<h2>Want more breaking news?<\/h2>\n<div>\n<p>Subscribe to <i>Technology Networks<\/i>\u2019 daily newsletter, delivering breaking science news straight to your inbox every day.<\/p>\n<p><a href=\"https:\/\/go.technologynetworks.com\/subscribe-to-breaking-science-news\" target=\"_blank\" class=\"btn\" rel=\"noopener\"><span>Subscribe for FREE<\/span><\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u201cPhospholes can be modified by certain chemical reactions, which has a major impact on the colour and efficiency of the fluorescence of the molecule. Another special feature of these substances is their propeller-like structure,\u201d explains K\u00f6nig. When these molecules are dissolved in a solvent and exposed to UV light, they do not fluoresce. The absorbed energy is released in the form of rotational motion, causing the molecules to spin like a propeller in the solvent. In a crystalline state, however, the ability to rotate is severely limited, which makes the substances fluoresce strongly under UV light. This behaviour is known as aggregation-induced emission (AIE).<\/p>\n<p>In the recently published paper, Nils K\u00f6nig and his colleagues demonstrated a new reaction on AIE-based phospholes, which provided access to a new class of substances. Phospholes can be modified under mild conditions by isocyanates, a reactive class of substances consisting of the elements nitrogen, oxygen and carbon, which are inexpensive and widely available due to their industrial applications in the field of polymers and biochemistry. This reaction, which seems to contradict classical organic chemistry, is characterised by high yields and excellent atom economy.<\/p>\n<p>The optical properties of the new substances were investigated in collaboration with the Institute of Surface Engineering (IOM) in Leipzig, as well as the Center for Nanotechnology (CeNTech) and the University of M\u00fcnster (WWU). It turned out that the simple modification significantly increased the efficiency of fluorescence compared to the original substances. This is due to the formation of a unique interaction between parts of the molecular framework, which significantly strengthens the molecule in the solid state and leads to stronger fluorescence. The new modification method thus makes a major contribution to understanding the AIE concept and could serve as a tool for synthesising efficient new dyes for screens or as markers for biomolecules.<\/p>\n<p><b>Reference:<\/b>&nbsp;K\u00f6nig N, God\u00ednez-Loyola Y, Yang F, et al. Facile modification of phosphole-based aggregation-induced emission luminogens with sulfonyl isocyanates. <i>Chem Sci<\/i>. 2023;14(9):2267-2274. doi:&nbsp;<a href=\"https:\/\/doi.org\/10.1039\/D3SC00308F\" target=\"_blank\" rel=\"noopener\">10.1039\/D3SC00308F<\/a><\/p>\n<p><i><span>This article has been republished from the following <\/span><a href=\"https:\/\/www.uni-leipzig.de\/en\/newsdetail\/artikel\/forschende-finden-zugang-zu-neuen-fluoreszierenden-materialien-2023-03-09\" target=\"_blank\" rel=\"noopener\"><span>materials<\/span><\/a><span>. Note: material may have been edited for length and content. For further information, please contact the cited source.<\/span><\/i><\/p>\n<p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Listen with Speechify Register for FREE to listen to this article Listen Now Thank you.<\/p>\n","protected":false},"author":1,"featured_media":43898,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/posts\/43896"}],"collection":[{"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/comments?post=43896"}],"version-history":[{"count":2,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/posts\/43896\/revisions"}],"predecessor-version":[{"id":43899,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/posts\/43896\/revisions\/43899"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/media\/43898"}],"wp:attachment":[{"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/media?parent=43896"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/categories?post=43896"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/tags?post=43896"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}