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Related Experiment Video

Updated: Mar 23, 2026

A Microfluidic Technique to Probe Cell Deformability
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Deformability-based cell selection with downstream immunofluorescence analysis.

Josephine Shaw Bagnall1, Sangwon Byun, David T Miyamoto

  • 1Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA. srm@mit.edu.

Integrative Biology : Quantitative Biosciences From Nano to Macro
|March 22, 2016
PubMed
Summary
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Researchers developed a new method to measure single cell mechanical properties and molecular traits simultaneously. This technique sorts cells based on their physical characteristics, enabling correlation with specific molecular markers for improved cancer detection.

Area of Science:

  • Biophysics
  • Cell Biology
  • Microfluidics

Background:

  • Single cell mechanical properties correlate with cell phenotype and malignancy.
  • Directly linking cell biophysical characteristics to molecular traits has been challenging.

Purpose of the Study:

  • To present a novel cell sorting technique using a suspended microchannel resonator (SMR).
  • To enable correlation between single-cell biophysical measurements and molecular expression.

Main Methods:

  • Utilized SMR to measure single cell buoyant mass and position in a constricted microfluidic channel.
  • Quantified cell passage time, related to deformability and surface friction.
  • Sorted cells based on passage time and collected them for downstream immunofluorescence imaging.

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Last Updated: Mar 23, 2026

A Microfluidic Technique to Probe Cell Deformability
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Main Results:

  • Demonstrated proof-of-principle by sorting and collecting tumor cells from spiked blood samples.
  • Successfully analyzed a metastatic prostate cancer patient blood sample.
  • Correlated distinct SMR signal trajectories with surface protein expression of sorted cells.

Conclusions:

  • The SMR-based technique allows for simultaneous measurement of single-cell biophysical properties and molecular markers.
  • This method facilitates the identification and characterization of specific cell populations, such as tumor cells.
  • Offers a promising approach for advancing cancer diagnostics and research.