Biotechnology Bulletin ›› 2022, Vol. 38 ›› Issue (12): 156-167.doi: 10.13560/j.cnki.biotech.bull.1985.2022-0158

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Novel Matrixes for Mass Spectrometry Imaging and Research Progress of It in Analyzing Biological Samples

MIAO Yu-jiao(), ZHU Long-jiao, XU Wen-tao()   

  1. Key Laboratory of Precision Nutrition and Quality Control of Food,Ministry of Education,Department of Nutrition and Health,China Agricultural University,Beijing 100193
  • Received:2022-02-09 Online:2022-12-26 Published:2022-12-29
  • Contact: XU Wen-tao E-mail:miaoyujiao99@163.com;xuwentao@cau.edu.cn

Abstract:

As a new molecular imaging technology,mass spectrometry imaging(MSI)can not only retain the spatial structure information of biological tissues,but also detect the expressions of biomolecules in tissues without labeling in situ,including proteins,peptides,amino acids,lipids,drugs and their metabolites,thus in situ detection of biological samples can be achieved. With the continuous development and optimization of ionization technology,matrix materials,analytical instruments and software,MSI technology has been increasingly applied to biological research,medical research,drug research and many other fields in recent years. In this review,a variety of novel matrixes developed by matrix-assisted laser desorption(MALDI)imaging technology for biological samples are summarized. The latest application and progress of new MSI technology and new data processing methods are summarized. Finally,the development direction of MSI technology,single cell horizontal,absolute quantification,and portable instrument,is prospected.

Key words: mass spectrometry imaging, MALDI, matrix, ionization, secondary ion mass spectroscopy, desorption electrospray ionization, quantitative MSI