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Updated: Jun 9, 2026

Quantifying the Mechanical Properties of the Endothelial Glycocalyx with Atomic Force Microscopy

Quantifying the Mechanical Properties of the Endothelial Glycocalyx with Atomic Force Microscopy

Published on: February 21, 2013

Endothelial cell adhesion force estimation at the nanoscale.

S Mantero¹, D Piuri, S Vesentini

¹Department of Bioengineering, Politecnico di Milano, Milano - Italy.

Journal of Applied Biomaterials & Biomechanics : JABB

|August 28, 2010

Summary

This summary is machine-generated.

This study models endothelial cell adhesion to synthetic surfaces, quantifying molecular interactions between integrin receptors and Arg-Gly-Asp (RGD) peptides on polyethylene. The findings accurately estimate cell adhesion forces, validating the molecular modeling approach.

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Last Updated: Jun 9, 2026

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Published on: November 2, 2011

Area of Science:

Biomaterials Science
Molecular Biology
Biophysics

Background:

Endothelial cell adhesion to biomaterials is crucial for biocompatibility.
Cell adhesion involves interactions between extracellular matrix (ECM) proteins like fibronectin/vitronectin and cell surface receptors (integrins).
Integrins bind to Arg-Gly-Asp (RGD) peptides within the ECM, mediating cell attachment.

Purpose of the Study:

To develop a molecular model for quantifying endothelial cell adhesion forces.
To evaluate binding affinity between integrin I-like domains and RGD peptides.
To model polyethylene surfaces and calculate interaction forces with the integrin-RGD complex.

Main Methods:

Generation of a molecular model for the integrin I-like domain receptor.
Computational evaluation of binding affinity between the I-like domain and three RGD peptides.
Development of a molecular model for crystalline polyethylene (PE) lamellae.
Calculation of interaction energies and forces between the I-like domain and RGD-grafted PE surfaces.

Main Results:

The study successfully modeled the integrin I-like domain and RGD peptides.
Calculated interaction energies provided an estimation of ligand-receptor complex adhesion force.
The derived endothelial cell adhesion force aligned with experimental data.

Conclusions:

Molecular modeling can accurately quantify endothelial cell adhesion forces to biomaterials.
Understanding ligand-receptor interactions is key to designing biocompatible synthetic surfaces.
This approach offers a method for predicting cell adhesion in biomaterial applications.