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Related Experiment Video

Updated: Jul 7, 2026

Production of Nanofibrillar Patterned Collagen for Tissue Engineering

Production of Nanofibrillar Patterned Collagen for Tissue Engineering

Published on: September 20, 2024

Fibrillogenesis in dense collagen solutions: a physicochemical study.

F Gobeaux¹, G Mosser, A Anglo

¹Chimie de la Matière Condensée, UMR 7574 CNRS-Université Pierre et Marie Curie, ENSCP-Ecole Pratique des Hautes Etudes, 12 rue Cuvier, 75005 Paris, France.

Journal of Molecular Biology

|February 1, 2008

Summary

Collagen fibrillogenesis in vitro is governed by concentration, pH, and ionic strength, forming strong gels similar to connective tissues. These physicochemical factors dictate collagen

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Preparation of 3D Collagen Gels and Microchannels for the Study of 3D Interactions In Vivo

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In vitro Synthesis of Native, Fibrous Long Spacing and Segmental Long Spacing Collagen

In vitro Synthesis of Native, Fibrous Long Spacing and Segmental Long Spacing Collagen

Published on: September 20, 2012

Area of Science:

Biochemistry
Materials Science
Biophysics

Background:

Fibrillogenesis, the process of collagen fibril formation, is crucial for connective tissue development.
Understanding cellular influence on fibrillogenesis requires studying collagen self-assembly under physiological conditions.

Purpose of the Study:

To investigate the physicochemical parameters influencing type I collagen self-assembly into fibrils in vitro.
To model fibrillogenesis at collagen concentrations mimicking those found in living tissues.

Main Methods:

Systematic study of type I collagen self-assembly in solutions (40-300 mg/ml).
Utilized transmission electron microscopy (TEM) and small- and wide-angle X-ray scattering (SAXS/WAXS).
Evaluated effects of collagen concentration, pH (2.5-12), and ionic strength (24-261 mM) on fibril formation and gel structure.

Main Results:

High collagen concentrations (40-300 mg/ml) formed strong gels across wide pH and ionic strength ranges.
Consistent cross-striated collagen fibril patterns and 67-nm long spacing (SAXS) observed from pH 6 to 12.
Collagen concentration significantly impacted gel structure and fibril morphology; increasing ionic strength led to larger fibrils.

Conclusions:

Physicochemical parameters like concentration, pH, and ionic strength precisely control collagen molecular organization and fibrillogenesis.
The in vitro model replicates in vivo conditions, enabling detailed study of collagen self-assembly in tissue morphogenesis.