Mass Spectrometry Imaging with Isomeric Resolution Enabled by Ozone‐Induced Dissociation

Abstract: Mass spectrometry imaging (MSI) enables the spatial distributions of molecules possessing different mass‐to‐charge ratios to be mapped within complex environments revealing regional changes at the molecular level. Even at high mass resolving power, however, these images often reflect the summed distribution of multiple isomeric molecules, each potentially possessing a unique distribution coinciding with distinct biological function (s) and metabolic origin. Herein, this chemical ambiguity is addressed through an innovative combination of ozone‐induced dissociation reactions with MSI, enabling the differential imaging of isomeric lipid molecules directly from biological tissues. For the first time, we demonstrate both double bond‐ and sn‐positional isomeric lipids exhibit distinct spatial locations within tissue. This MSI approach enables researchers to unravel local lipid molecular complexity based on both exact elemental composition and isomeric structure directly from tissues.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Mass Spectrometry Imaging with Isomeric Resolution Enabled by Ozone‐Induced Dissociation ; volume:57 ; number:33 ; year:2018 ; pages:10530-10534 ; extent:5
Angewandte Chemie / International edition. International edition ; 57, Heft 33 (2018), 10530-10534 (gesamt 5)

Urheber
Paine, Martin R. L.
Poad, Berwyck L. J.
Eijkel, Gert B.
Marshall, David L.
Blanksby, Stephen J.
Heeren, Ron M.A.
Ellis, Shane R.

DOI
10.1002/anie.201802937
URN
urn:nbn:de:101:1-2022091207415932852225
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:26 MESZ

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Beteiligte

  • Paine, Martin R. L.
  • Poad, Berwyck L. J.
  • Eijkel, Gert B.
  • Marshall, David L.
  • Blanksby, Stephen J.
  • Heeren, Ron M.A.
  • Ellis, Shane R.

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