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Updated: Jun 1, 2026
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Control of Cell Adhesion using Hydrogel Patterning Techniques for Applications in Traction Force Microscopy
Published on: January 29, 2022
Adhesion control for micro- and nanomanipulation.
Jérôme Dejeu1, Mikhael Bechelany, Patrick Rougeot
1FEMTO-ST Institute, AS2M Department, UMR CNRS 6174-UFC/ENSMM/UTBM, 24 rue Alain Savary, 25000 Besançon, France. jerome.dejeu@univ-fcomte.fr
ACS Nano
|June 2, 2011
Summary
Predicting adhesion forces in micromanipulation is challenging. A multisphere van der Waals model accurately predicts forces between structured surfaces and micro-objects, aiding micro-device design.
Area of Science:
- Surface Science
- Nanotechnology
- Physics
Background:
- Adhesion forces between micro/nano-objects and microgrippers pose challenges in micromanipulation.
- Reducing or canceling these forces is difficult and crucial for precise manipulation.
Purpose of the Study:
- To develop and validate a model for predicting adhesion forces between structured surfaces and micro-objects.
- To investigate the influence of surface structure on adhesion forces.
Main Methods:
- Utilized a multisphere van der Waals force model to predict adhesion.
- Structured surfaces with polystyrene latex (PS) particles of varying radii (35-2000 nm).
- Compared model predictions with experimental pull-off force measurements using Atomic Force Microscopy (AFM).
Main Results:
- The multisphere van der Waals model accurately predicts adhesion forces.
- Experimental validation confirmed the model's efficacy across different sphere materials.
- Surface structuring significantly impacts adhesion characteristics.
Conclusions:
- The proposed model offers a reliable method for predicting micro/nano-object adhesion forces.
- This research facilitates the design of microgrippers and structured surfaces for various applications.
- Potential applications include telecommunications, bioengineering, and Micro-Electro-Mechanical Systems (MEMS).
