Bacterial biofilm sample preparation for spatial metabolomics.

Area of Science:

• Microbiology
• Analytical Chemistry
• Biochemistry

Background:

• Spatial metabolomics using mass spectrometry imaging (MSI) is crucial for studying biological surfaces.
• MSI enables direct analysis of bacterial colonies to probe metabolic processes.

Purpose of the Study:

• To review recent advancements in bacterial metabolomics using MSI.
• To highlight improvements in sample preparation and multi-omics approaches for metabolite identification and pathway elucidation.

Main Methods:

• Review of recent literature on mass spectrometry imaging for bacterial metabolomics.
• Focus on advancements in agar-based and membrane-based sample preparation.
• Discussion of derivatization agents, dual imaging, and multi-omics techniques.
• Exploration of 3D protocols for whole colony MSI analysis.

Main Results:

• Improved sample preparation techniques (agar-based, membranes) enhance MSI analysis of bacterial metabolites.
• Derivatization agents improve signal detection and analyte identification.
• Multi-omics and dual imaging approaches aid in identifying metabolites and understanding metabolic pathways.
• Advancements in 3D protocols enable comprehensive whole colony analysis.

Conclusions:

• Recent advancements significantly enhance MSI capabilities for bacterial metabolomics.
• These improvements offer promising future directions for studying bacterial metabolism and host-microbe interactions.