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Updated: Aug 16, 2025

Mechano-Node-Pore Sensing: A Rapid, Label-Free Platform for Multi-Parameter Single-Cell Viscoelastic Measurements
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Mechano-Node-Pore Sensing: A Rapid, Label-Free Platform for Multi-Parameter Single-Cell Viscoelastic Measurements.

Andre Lai1, Rachel Rex2, Kristen L Cotner1

  • 1Graduate Program in Bioengineering, University of California, Berkeley and University of California, San Francisco.

Journal of Visualized Experiments : Jove
|December 19, 2022
PubMed
Summary

Mechano-node-pore sensing (mechano-NPS) offers a flexible, label-free method for measuring multi-parameter cellular viscoelasticity. This microfluidic platform provides a more complete mechanical cell profile with moderate throughput, aiding biological and diagnostic applications.

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Area of Science:

  • Biophysics
  • Cell Biology
  • Microfluidics

Background:

  • Cellular mechanical properties influence diverse biological processes and diseases.
  • Conventional methods (AFM, MA) offer rich data but low throughput.
  • High-throughput methods (RT-DC) provide limited mechanical insights.

Purpose of the Study:

  • To introduce mechano-node-pore sensing (mechano-NPS) as a microfluidic platform.
  • To bridge the gap between low-throughput, high-information methods and high-throughput, low-information methods.
  • To enable multi-parameter viscoelastic measurements of cells at moderate throughput.

Main Methods:

  • Utilizes a direct current (DC) measurement in a microfluidic channel.
  • Monitors cell size and velocity during transit through a narrow constriction.
  • Quantifies transverse deformation, resistance, and recovery from deformation.

Main Results:

  • Provides multi-parameter viscoelastic cell properties for a comprehensive mechanical state assessment.
  • Offers a flexible, label-free, and electronics-based microfluidic sensing approach.
  • Demonstrates simple implementation, minimal sample preparation, and adaptability.

Conclusions:

  • Mechano-NPS offers a versatile and accessible platform for detailed cellular mechanical analysis.
  • The platform provides unique mechanical information for diverse cell types.
  • Has potential applications in basic science research and clinical diagnostics.