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Updated: Jun 24, 2025
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Laser Capture Microdissection of Mammalian Tissue
Published on: October 1, 2007
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Picosecond laser capture microdissection based on edge catapulting combined with dielectrophoretic force
Minjun Yang1, Jinxin Liu1, Wenhui Huang1
1Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, MoE Key Laboratory for Biomedical Photonics, Huazhong University of Science and Technology, Wuhan 430074, China.
Biomedical Optics Express
|June 13, 2024
Summary
We developed a new laser capture system (ps-LMED) for fast, non-invasive isolation of cells and tissues. This method preserves sample integrity for precise spatial omics analysis in biomedical research.
Area of Science:
- Biomedical Research
- Cell Biology
- Molecular Biology
Background:
- Spatial omics analysis requires precise isolation of cells or cell populations.
- Existing methods may be invasive or yield contaminated samples, hindering downstream analysis.
Purpose of the Study:
- To develop a fast, non-invasive method for acquiring uncontaminated cells and cell populations for molecular assays.
- To enable precise spatial omics information analysis.
Main Methods:
- Proposed a picosecond laser capture microdissection (ps-LMED) system.
- Combined picosecond laser cutting with edge catapulting and dielectrophoretic force for sample acquisition.
- Validated the system through theoretical analysis and practical experiments.
Main Results:
- The ps-LMED system can collect samples from single cells to large tissues (up to 532,500 µm³).
- Acquisition is fast and requires no further operations after cutting.
- Demonstrated non-destructiveness to living cells and feasibility for RNA and protein omics analysis.
Conclusions:
- The ps-LMED system provides a highly efficient and non-invasive solution for spatial omics sample preparation.
- This technology advances the capability for detailed cellular and tissue analysis in biomedical research.
