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Related Experiment Video

Updated: Apr 23, 2026

A Microfluidic Technique to Probe Cell Deformability
09:47

A Microfluidic Technique to Probe Cell Deformability

Published on: September 3, 2014

10.9K

A microfluidic technique to probe cell deformability.

David J Hoelzle1, Bino A Varghese2, Clara K Chan3

  • 1Department of Integrative Biology and Physiology, University of California, Los Angeles; Department of Aerospace and Mechanical Engineering, University of Notre Dame.

Journal of Visualized Experiments : Jove
|September 17, 2014
PubMed
Summary
This summary is machine-generated.

This study introduces a microfluidic device for efficient cell deformability testing. The device reveals distinct cell behaviors, aiding in understanding their viscoelastic properties.

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Area of Science:

  • Biophysics
  • Cell Biology
  • Microfluidics

Background:

  • Cell deformability is crucial for biological processes.
  • Traditional methods for assessing cell mechanics are often time-consuming and low-throughput.
  • Understanding cell viscoelasticity can provide insights into disease states.

Purpose of the Study:

  • To design and validate a novel microfluidic device for high-throughput cell deformability analysis.
  • To investigate the mechanical properties of human promyelocytic leukemia (HL-60) cells.
  • To correlate cellular mechanical behavior with differentiation status.

Main Methods:

  • Fabrication of a microfluidic device with serial micron-scale constrictions.
  • Utilizing pressure-driven flow to force individual cells through constrictions.
  • Automated image analysis to quantify cell occlusion and transit times.
  • Comparing deformability of untreated and differentiated HL-60 cells.

Main Results:

  • The microfluidic device efficiently measures deformability for thousands of cells per hour.
  • Untreated HL-60 cells showed a median occlusion time of 9.3 msec at the first constriction.
  • Differentiated HL-60 cells exhibited reduced occlusion time (4.3 msec) and faster transit.
  • Median transit time through subsequent constrictions was 4.0 msec for untreated and 3.3 msec for treated cells.

Conclusions:

  • The developed microfluidic device offers an efficient method for assessing cell viscoelasticity.
  • Cell differentiation significantly alters mechanical properties, as demonstrated by HL-60 cell behavior.
  • This technology has the potential to reveal the molecular underpinnings of cellular mechanical responses.