Search: WFRF:(Lanekoff Ingela 1975) >
Revealing Structure...
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Sharma, VarunUppsala universitet,Analytisk kemi
(author)
Revealing Structure and Localization of Steroid Regioisomers through Predictive Fragmentation Patterns in Mass Spectrometry Imaging
- Article/chapterEnglish2023
Publisher, publication year, extent ...
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American Chemical Society (ACS),2023
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:uu-518736
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-518736URI
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https://doi.org/10.1021/acs.analchem.3c03931DOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Identifying and mapping steroids in tissues can provide opportunities for biomarker discovery, the interrogation of disease progression, and new therapeutics. Although separation coupled to mass spectrometry (MS) has emerged as a powerful tool for studying steroids, imaging and annotating steroid isomers remains challenging. Herein, we present a new method based on the fragmentation of silver-cationized steroids in tandem MS, which produces distinctive and consistent fragmentation patterns conferring confidence in steroid annotation at the regioisomeric level without using prior derivatization, separation, or instrumental modification. In addition to predicting the structure of the steroid with isomeric specificity, the method is simple, flexible, and inexpensive, suggesting that the wider community will easily adapt to it. We demonstrate the utility of our approach by visualizing steroids and steroid isomer distributions in mouse brain tissue using silver-doped pneumatically assisted nanospray desorption electrospray ionization mass spectrometry imaging.
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Lanekoff, Ingela,Prof.1975-Uppsala universitet,Analytisk kemi(Swepub:uu)ingla753
(author)
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Uppsala universitetAnalytisk kemi
(creator_code:org_t)
Related titles
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In:Analytical Chemistry: American Chemical Society (ACS)95:48, s. 17843-178500003-27001520-6882
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