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Towards high-throughput microfluidic Raman-activated cell sorting.

Qiang Zhang1, Peiran Zhang, Honglei Gou

  • 1Single-Cell Center, CAS Key Laboratory of Biofuels and Shandong Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China. xujian@qibebt.ac.cn mabo@qibebt.ac.cn.

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Summary
This summary is machine-generated.

Raman-activated cell sorting (RACS) offers label-free cell isolation. New high-throughput microfluidic RACS prototypes overcome weak signal limitations, enabling advanced single-cell analysis beyond traditional methods.

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Area of Science:

  • Biotechnology
  • Single-cell analysis
  • Spectroscopy

Background:

  • Raman-activated cell sorting (RACS) is a label-free, non-invasive single-cell analysis technology.
  • Existing RACS systems face limitations in throughput due to weak Raman signals compared to FACS and MACS.

Purpose of the Study:

  • To address the low throughput bottleneck in RACS.
  • To develop next-generation RACS systems with enhanced capabilities.

Main Methods:

  • Improving Raman signal acquisition efficiency and quality using advanced spectrometers and techniques.
  • Developing novel microfluidic devices for cell sorting and integrating them into RACS systems.
  • Demonstrating prototypes like flow-based OT-RACS, DEP-RACS, and SERS/CARS flow cytometry.

Main Results:

  • Prototypes of high-throughput microfluidic RACS have been successfully demonstrated.
  • These advancements overcome the limitations of weak Raman signals.
  • New RACS systems offer capabilities beyond FACS and MACS.

Conclusions:

  • High-throughput microfluidic RACS represents a significant advancement in single-cell analysis.
  • This technology empowers biologists to address complex scientific questions previously unattainable.
  • RACS provides a powerful tool for exploring cellular heterogeneity and function.