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Deformability- and size-based microcapsule sorting.

Doriane Vesperini1, Oriane Chaput1, Nadège Munier1

  • 1Biomécanique et Bioingénierie (UMR CNRS 7338), Université de Technologie de Compiègne - Sorbonne Universités, France.

Medical Engineering & Physics
|July 22, 2017
PubMed
Summary
This summary is machine-generated.

This study introduces a simple microfluidic device for sorting microcapsules by size or stiffness. The device uses a unique channel design to achieve high sensitivity in separating microcapsules based on physical properties.

Keywords:
CapsuleDeformabilityMicrofluidicsSeparation

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Area of Science:

  • Biomedical Engineering
  • Microfluidics
  • Cell Sorting

Background:

  • Biomedical applications frequently require sorting cells by physical properties like size and deformability.
  • Microfluidics offers advanced tools for micro-object manipulation and sorting.

Purpose of the Study:

  • To present a simple microfluidic device for sorting microcapsules.
  • To demonstrate size-based sorting at low flow strengths and stiffness-based sorting at high flow strengths.

Main Methods:

  • A microfluidic device with a semi-cylindrical obstacle and a diverging chamber was designed.
  • Elastic microcapsules were subjected to varying flow strengths within the device.

Main Results:

  • The device successfully sorted microcapsules by size at low flow strengths.
  • Stiffness-based sorting was achieved at high flow strengths.
  • The system demonstrated high sensitivity, discriminating elasticity differences of order unity.

Conclusions:

  • This microfluidic device offers a sensitive and effective method for sorting microcapsules.
  • The device's ability to sort by both size and stiffness provides versatility for biomedical applications.