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Updated: Apr 6, 2026

Micropipette Aspiration of Substrate-attached Cells to Estimate Cell Stiffness

Micropipette Aspiration of Substrate-attached Cells to Estimate Cell Stiffness

Published on: September 27, 2012

Characterizing cell adhesion by using micropipette aspiration.

Brenna Hogan¹, Avin Babataheri¹, Yongyun Hwang²

¹Department of Mechanics, Hydrodynamics Laboratory (LadHyX), École Polytechnique, Palaiseau, France.

Biophysical Journal

|July 23, 2015

Summary

This summary is machine-generated.

We developed a new method to measure cell-substrate adhesion forces using micropipette aspiration. This technique quantifies the critical stress required for cell detachment, revealing its dependence on adhesion area and loading rate.

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Last Updated: Apr 6, 2026

Micropipette Aspiration of Substrate-attached Cells to Estimate Cell Stiffness

Micropipette Aspiration of Substrate-attached Cells to Estimate Cell Stiffness

Published on: September 27, 2012

Author Spotlight: Advancing Live-Cell Mechanobiology Through Fluorescence Microaspiration

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Adhesion Frequency Assay for In Situ Kinetics Analysis of Cross-Junctional Molecular Interactions at the Cell-Cell Interface

Adhesion Frequency Assay for In Situ Kinetics Analysis of Cross-Junctional Molecular Interactions at the Cell-Cell Interface

Published on: November 2, 2011

Area of Science:

Biophysics
Cell Biology
Materials Science

Background:

Quantifying cell-substrate adhesion is crucial for understanding cellular processes.
Existing methods often lack direct force measurement or control over parameters.

Purpose of the Study:

To develop and validate a direct method for measuring cell-substrate adhesion force.
To investigate the relationship between adhesion force, cell geometry, and loading rate.

Main Methods:

Utilized micropipette aspiration perpendicular to adherent cells.
Applied controlled aspiration pressure and monitored cell behavior via microscopy.
Varied micropipette diameter, aspiration pressure, and loading rate.

Main Results:

Identified cell detachment as a distinct event at critical aspiration pressure.
Detachment force was found to scale with cell adhesion area, defining critical stress.
Developed a minimal model correlating critical stress with adhesion parameters and loading rate.

Conclusions:

The micropipette aspiration technique provides a direct and controllable method for quantifying cell-substrate adhesion.
The study elucidates the mechanical principles governing cell detachment from substrates.
Results offer insights into the biomechanics of cell adhesion and detachment processes.