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Related Experiment Video

Updated: Jul 17, 2026

Production of Nanofibrillar Patterned Collagen for Tissue Engineering
07:34

Production of Nanofibrillar Patterned Collagen for Tissue Engineering

Published on: September 20, 2024

Novel elastic material from collagen for tissue engineering.

Shunji Yunoki1, Kazuo Mori, Takeshi Suzuki

  • 1Division of Molecular Chemistry, Graduate School of Engineering, Hokkaido University, Kita-13, Nishi-8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan. yunoki@cris.hokudai.ac.jp

Journal of Materials Science. Materials in Medicine
|February 6, 2007
PubMed
Summary

Salmon atelocollagen was modified to create an elastic collagen gel (e-gel) with rubber-like elasticity and high elongation. This e-gel supports human osteoblast attachment and proliferation, showing promise for tissue engineering applications.

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Biochemistry

Background:

  • Collagen is a primary structural protein with applications in regenerative medicine.
  • Developing mechanically robust and biocompatible collagen-based materials is crucial for tissue engineering.
  • Existing collagen gels often lack the required elasticity and mechanical stability for certain applications.

Purpose of the Study:

  • To prepare an elastic collagen gel (e-gel) from salmon atelocollagen.
  • To characterize the mechanical properties and biocompatibility of the developed e-gel.
  • To evaluate the potential of e-gel for tissue engineering applications.

Main Methods:

  • Salmon atelocollagen fibrillar gel (f-gel) was cross-linked using 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide (EDC).
  • The cross-linked f-gel underwent heat treatment at 80°C, inducing shrinkage and structural deformation.
  • Mechanical properties (stress-strain behavior, elongation at break) and cell compatibility (osteoblast attachment and proliferation) were assessed.

Main Results:

  • The heat-treated collagen gel (e-gel) exhibited rubber-like elasticity and stable stress-strain behavior under repeated stretching.
  • The e-gel demonstrated a high elongation at the breaking point of approximately 230%.
  • Normal human osteoblasts showed excellent attachment and proliferation on the e-gel surface.

Conclusions:

  • The developed elastic collagen gel possesses superior mechanical properties compared to conventional collagen gels.
  • The e-gel supports osteoblast viability and growth, indicating good biocompatibility.
  • This novel e-gel holds significant potential for applications in bone tissue engineering and regenerative medicine.