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MALDI-TOF Mass Spectrometry01:19

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Sample Preparation for Metabolic Profiling using MALDI Mass Spectrometry Imaging
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Advances in tissue section preparation for MALDI imaging MS.

Aurélien Thomas1, Pierre Chaurand

  • 1Unit of toxicology, CURML, University of Lausanne, Bugnon street 21, 1011 Lausanne, Switzerland.

Bioanalysis
|May 9, 2014
PubMed
Summary
This summary is machine-generated.

Matrix-assisted laser desorption ionization imaging mass spectrometry (MALDI IMS) has expanded significantly. This review covers tissue preparation methods for MALDI IMS, crucial for analyzing peptides, lipids, and metabolites in tissues.

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Area of Science:

  • Analytical Chemistry
  • Biochemistry
  • Molecular Imaging

Background:

  • Matrix-assisted laser desorption ionization imaging mass spectrometry (MALDI IMS) has evolved over the past decade.
  • Initial applications focused on peptide and protein mapping in mammalian tissues.
  • Current applications encompass a broader range of molecules, including lipids and metabolites.

Purpose of the Study:

  • To review the advancements in tissue preparation for MALDI IMS.
  • To discuss the challenges and evolving methodologies in the field.
  • To provide insights into current capabilities and future directions for MALDI IMS tissue preparation.

Main Methods:

  • Exploration of various tissue section preparation protocols.
  • Inclusion of in situ tissue chemistries.
  • Discussion of solvent-free matrix deposition techniques.

Main Results:

  • Significant technological and methodological advancements have been made in MALDI IMS.
  • Numerous protocols for tissue preparation have been developed and introduced.
  • The scope of molecules analyzed by MALDI IMS has expanded considerably.

Conclusions:

  • Tissue preparation is a critical aspect of MALDI IMS.
  • Ongoing developments in methodology continue to enhance the technique's capabilities.
  • This review provides a comprehensive overview of tissue preparation for MALDI IMS.