Microbial single-cell mass spectrometry: status, challenges, and prospects.
Martin Schirmer1, Christian Dusny1
1Department of Solar Materials - Microscale Analysis and Engineering, Helmholtz-Centre for Environmental Research - UFZ Leipzig, Leizpig, Germany.
Mass spectrometry now enables analyzing microbial single cells, moving beyond mammalian studies. This review details the principles and future of this powerful single-cell omics technology.
Area of Science:
- Microbiology
- Analytical Chemistry
- Biotechnology
Background:
- Single-cell analysis reveals cellular heterogeneity across omics levels.
- Spectrometric methods offer label-free metabolome and proteome analysis but are limited.
- Current limitations primarily restrict single-cell mass spectrometry to mammalian cells.
Purpose of the Study:
- To review the principles enabling microbial single-cell mass spectrometry.
- To discuss the future potential of this technology in microbiology.
Main Methods:
- Miniaturization of cell handling and incubation.
- Development of chip-coupling concepts for analyte ionization.
- Interfacing microfluidic chips with mass spectrometers.
Main Results:
- Advancements in mass spectrometry now permit microbial single-cell analysis.
- Key innovations include miniaturized systems and improved ionization techniques.
Conclusions:
- Microbial single-cell mass spectrometry is an emerging field with significant potential.
- Future developments will likely expand its applications in microbial research and diagnostics.
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