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Ultra high-speed sorting.

James F Leary1

  • 1Department of Basic Medical Sciences, Purdue University, W. Lafayette, IN 47907-2026, USA. jfleary@purdue.edu

Cytometry. Part a : the Journal of the International Society for Analytical Cytology
|September 16, 2005
PubMed
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Cell sorting technology has advanced, becoming more stable and requiring less expertise. However, droplet-based methods still face challenges with aerosol containment and speed limitations, with future solutions anticipated in microfluidic systems.

Area of Science:

  • Biotechnology
  • Cell Biology
  • Analytical Chemistry

Background:

  • Cell sorting, a technique with a 40-year history, has historically required significant expertise, often described as an art rather than a science.
  • Recent technological advancements have begun to simplify cell sorting procedures, reducing the need for specialized skills.

Purpose of the Study:

  • To review the current state of cell sorting technology, focusing on droplet-based methods.
  • To identify limitations and potential future advancements in cell sorting.

Main Methods:

  • Droplet-based cell sorting relies on controlled jet stream disturbances influenced by surface tension.
  • Sort rate is primarily limited by system pressures and orifice diameters, which determine droplet generation frequency.

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Main Results:

  • Despite improvements, cell sorting, particularly complex multicolor sorting of rare populations, still demands considerable expertise.
  • High-speed sorting generates aerosols, posing biosafety concerns and limiting throughput.

Conclusions:

  • Cell sorting is now more stable and predictable, requiring less operator expertise.
  • Aerosol containment remains a significant challenge for droplet-based sorting.
  • Future advancements in lab-on-a-chip microfluidic systems may offer solutions for aerosol containment, cell viability, and enable ultra-high-speed sorting through parallelized architectures.