Desorption electrospray ionization mass spectrometry (DESI-MS) imaging of biological samples allows untargeted analysis and structural characterization of lipids ionized from the near-surface region of a sample under ambient conditions. DESI is a powerful and sensitive MS ionization method for 2D and 3D imaging of lipids from direct and unmodified complex biological samples. This review describes the strengths and limitations of DESI-MS for lipid characterization and imaging together with the technical workflow and a survey of applications. Included are discussions of lipid mapping and biomarker discovery as well as a perspective on the future of DESI imaging. (C) 2011 Elsevier B.V. All rights reserved.
机构:
Purdue Univ, Weldon Sch Biomed Engn, W Lafayette, IN 47907 USAPurdue Univ, Dept Chem, W Lafayette, IN 47907 USA
Liu, Jiangjiang
Cooks, R. Graham
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机构:
Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA
Purdue Univ, Ctr Analyt Instrumentat Dev, W Lafayette, IN 47907 USAPurdue Univ, Dept Chem, W Lafayette, IN 47907 USA
Cooks, R. Graham
Ouyang, Zheng
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机构:
Purdue Univ, Weldon Sch Biomed Engn, W Lafayette, IN 47907 USA
Purdue Univ, Ctr Analyt Instrumentat Dev, W Lafayette, IN 47907 USAPurdue Univ, Dept Chem, W Lafayette, IN 47907 USA