{"id":4495,"date":"2023-12-04T16:15:38","date_gmt":"2023-12-04T21:15:38","guid":{"rendered":"https:\/\/scienceweb.clemson.edu\/imms\/?p=4495"},"modified":"2024-04-08T16:24:56","modified_gmt":"2024-04-08T20:24:56","slug":"determining-protonation-site-in-fentanyl-protomers-using-ion-mobility-aligned-ms-ms-fragmentation","status":"publish","type":"post","link":"https:\/\/scienceweb.clemson.edu\/imms\/determining-protonation-site-in-fentanyl-protomers-using-ion-mobility-aligned-ms-ms-fragmentation\/","title":{"rendered":"Determining protonation site in fentanyl protomers using ion mobility-aligned MS\/MS fragmentation"},"content":{"rendered":"<h1 id=\"screen-reader-main-title\" class=\"Head u-font-serif u-h2 u-margin-s-ver\"><span class=\"title-text\">Determining protonation site in fentanyl protomers using ion mobility-aligned MS\/MS fragmentation<\/span><\/h1>\n<p>Ralph Aderorho and Christopher D. Chouinard<\/p>\n<div class=\"article_header-cite-this\"><span class=\"cit-title\"><i>Int. J. Mass Spectrom.<\/i><\/span>\u00a0<span class=\"cit-year-info\">2024<\/span><span class=\"cit-volume\">, 496<\/span><span class=\"cit-issue\">,<\/span><span class=\"cit-pageRange\"> 117185<\/span><\/div>\n<div class=\"article_header-epubdate\">\n<p><span class=\"pub-date epub-date\">Publication Date<\/span><span class=\"date-separator\">: <\/span><span class=\"pub-date-value\">December 14, 2023<\/span><\/p>\n<\/div>\n<p><a class=\"topic-link\" title=\"Learn more about Drug overdoses from ScienceDirect's AI-generated Topic Pages\" href=\"https:\/\/www.sciencedirect.com\/topics\/pharmacology-toxicology-and-pharmaceutical-science\/drug-overdose\">Drug overdoses<\/a>\u00a0in the United States totalled over 100,000 in 2022, with an estimated 68\u00a0% of those being attributed to illicitly manufactured fentanyls (IMFs). Their ease and low cost of synthesis have prompted a proliferation of new\u00a0<a class=\"topic-link\" title=\"Learn more about fentanyl from ScienceDirect's AI-generated Topic Pages\" href=\"https:\/\/www.sciencedirect.com\/topics\/pharmacology-toxicology-and-pharmaceutical-science\/duragesic\">fentanyl<\/a>\u00a0analogues in the\u00a0<a class=\"topic-link\" title=\"Learn more about illicit drug from ScienceDirect's AI-generated Topic Pages\" href=\"https:\/\/www.sciencedirect.com\/topics\/pharmacology-toxicology-and-pharmaceutical-science\/illicit-drug\">illicit drug<\/a>\u00a0market, and further created demand for analytical tools capable of identifying these new substances. Ion mobility-mass spectrometry (IM-MS) has emerged as a strong candidate to lead this effort, but the presence of multiple mobility peaks for a single\u00a0<a class=\"topic-link\" title=\"Learn more about fentanyl from ScienceDirect's AI-generated Topic Pages\" href=\"https:\/\/www.sciencedirect.com\/topics\/chemistry\/fentanyl\">fentanyl<\/a>\u00a0compound has created ambiguity in analysis. Herein, we use a combination of IM and tandem\u00a0<a class=\"topic-link\" title=\"Learn more about mass spectrometry from ScienceDirect's AI-generated Topic Pages\" href=\"https:\/\/www.sciencedirect.com\/topics\/physics-and-astronomy\/mass-spectroscopy\">mass spectrometry<\/a>\u00a0(MS\/MS) and determine that the multiple mobility peaks correspond to protonation site isomers, or \u2018protomers\u2019, where protonation can occur at either the N-piperidine ring and N-amide. Unique fragmentation spectra and energy-resolved CID revealed characteristic dissociation pathways for each protomer. Furthermore, this approach was applied to another analogue, despropionyl\u00a0<em>ortho<\/em>-methylfentanyl, and was subsequently able to annotate its protomers as well. This approach holds tremendous promise for identification of future novel opioids including\u00a0<a class=\"topic-link\" title=\"Learn more about fentanyl analogues from ScienceDirect's AI-generated Topic Pages\" href=\"https:\/\/www.sciencedirect.com\/topics\/pharmacology-toxicology-and-pharmaceutical-science\/fentanyl-derivative\">fentanyl analogues<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Determining protonation site in fentanyl protomers using ion mobility-aligned MS\/MS fragmentation Ralph Aderorho and Christopher D. Chouinard Int. J. Mass Spectrom.\u00a02024, 496, 117185 Publication Date: December 14, 2023 Drug overdoses\u00a0in the United States totalled over 100,000 in 2022, with an estimated 68\u00a0% of those being attributed to illicitly manufactured fentanyls (IMFs). Their ease and low&hellip;<\/p>\n","protected":false},"author":42,"featured_media":4496,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[98,115],"tags":[],"class_list":["post-4495","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analytical-papers","category-news","category-98","category-115","description-off"],"_links":{"self":[{"href":"https:\/\/scienceweb.clemson.edu\/imms\/wp-json\/wp\/v2\/posts\/4495","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scienceweb.clemson.edu\/imms\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scienceweb.clemson.edu\/imms\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scienceweb.clemson.edu\/imms\/wp-json\/wp\/v2\/users\/42"}],"replies":[{"embeddable":true,"href":"https:\/\/scienceweb.clemson.edu\/imms\/wp-json\/wp\/v2\/comments?post=4495"}],"version-history":[{"count":0,"href":"https:\/\/scienceweb.clemson.edu\/imms\/wp-json\/wp\/v2\/posts\/4495\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/scienceweb.clemson.edu\/imms\/wp-json\/wp\/v2\/media\/4496"}],"wp:attachment":[{"href":"https:\/\/scienceweb.clemson.edu\/imms\/wp-json\/wp\/v2\/media?parent=4495"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scienceweb.clemson.edu\/imms\/wp-json\/wp\/v2\/categories?post=4495"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scienceweb.clemson.edu\/imms\/wp-json\/wp\/v2\/tags?post=4495"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}