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Related Concept Videos

Overview Of Cell Separation And Isolation01:20

Overview Of Cell Separation And Isolation

Cell separation was first achieved in 1964 by S. H. Seal, who separated large tumor cells from the smaller blood cells using filtration. Two years later, Pohl and Hawk performed experiments on how cells respond differently to a nonuniform electric field based on the cell type. Such observations were the inception of cell separation methods, which allow isolating a single cell type from a heterogeneous sample.

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Microfluidic Buffer Exchange for Interference-free Micro/Nanoparticle Cell Engineering
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Deformability-based cell classification and enrichment using inertial microfluidics.

Soojung Claire Hur1, Nicole K Henderson-MacLennan, Edward R B McCabe

  • 1Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA.

Lab on a Chip
|January 29, 2011
PubMed
Summary
This summary is machine-generated.

This study presents a microfluidic system for label-free cell classification and enrichment using cell size and deformability. The technology offers high-throughput, cost-effective cell separation for applications in cancer research and regenerative medicine.

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Area of Science:

  • Biophysics
  • Cell Biology
  • Microfluidics

Background:

  • Detecting and isolating rare cells is crucial for research and medicine.
  • Label-free techniques reduce complexity and cost for clinical applications.
  • Single-cell deformability is a novel biomarker for cell phenotype and cancer invasiveness.

Purpose of the Study:

  • To develop a high-throughput, continuous, label-free method for cell classification and enrichment.
  • To utilize microfluidic fluid dynamics to separate cells based on size and deformability.
  • To demonstrate the potential for cost-effective cell separation without altering gene expression.

Main Methods:

  • A microfluidic system was designed to balance deformability-induced and inertial lift forces.
  • Cells were flowed through a microchannel, establishing dynamic equilibrium positions based on their properties.
  • The system was used to classify and enrich various cell types based on size and deformability.

Main Results:

  • Particles and droplets with varying elasticity and viscosity separated into distinct lateral positions.
  • The system successfully classified different cell types using size and deformability as markers.
  • Passive, label-free, continuous cell enrichment was achieved, yielding viable cells with no significant gene expression changes.

Conclusions:

  • The developed microfluidic system enables high-throughput, label-free cell classification and enrichment.
  • Cell deformability serves as a valuable biomarker for cell identification and separation.
  • This technology holds practical potential for cancer research, immunology, and regenerative medicine.