Advances in MALDI Mass Spectrometry Imaging Single Cell and Tissues

Area of Science:

• Biomedical Engineering
• Analytical Chemistry
• Molecular Imaging

Background:

• Mass spectrometry imaging (MSI) provides label-free detection and spatial mapping of biomolecules.
• Matrix-assisted laser desorption/ionization (MALDI) is the predominant MSI technique for biological samples.

Purpose of the Study:

• To comprehensively review advancements in MALDI-MSI.
• To highlight applications in single cell and biological tissue analysis.
• To discuss future directions for MALDI-MSI technology.

Main Methods:

• Review of existing literature on MALDI-MSI instrumentation and methodologies.
• Analysis of applications in single cell and tissue imaging.
• Synthesis of current trends and future prospects in the field.

Main Results:

• MALDI-MSI enables sensitive, simultaneous detection and mapping of hundreds of biomolecules.
• Significant progress has been made in MALDI-MSI instrumentation and analytical methods.
• Diverse applications in biological tissue and single cell analysis have been demonstrated.

Conclusions:

• MALDI-MSI is a powerful tool for label-free molecular imaging in biological research.
• Continued advancements in instrumentation and methods will expand its utility.
• Future directions include enhanced sensitivity, spatial resolution, and multi-omics integration.