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Collagen processing with mesoscale aggregates as templates and building blocks.

Ying Pei1, Wen Yang2, Keyong Tang1

  • 1College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China.

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|January 17, 2023
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Summary

This review explores using natural collagen aggregates (CAs) as building blocks for advanced materials. This top-down approach offers superior mechanical and thermal properties compared to molecular assembly.

Keywords:
Biopolymer isolationBiopolymer reconstitutionCollagen aggregatesCollagen mesostructure

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Area of Science:

  • Biomaterials Science
  • Materials Engineering
  • Tissue Engineering

Background:

  • Collagen exhibits a hierarchical structure with mesoscale aggregates (microfibers, fibers, fiber bundles) crucial for biological tissue mechanics.
  • These natural collagen aggregates (CAs) possess inherent organizational features contributing to mechanical strength and toughness.
  • Current collagen material design often relies on bottom-up, molecular-level assembly.

Purpose of the Study:

  • To review the hierarchical structure of biological collagen, emphasizing mesostructural features.
  • To summarize isolation strategies for collagen aggregates (CAs).
  • To explore the application of CAs as building blocks for novel collagen materials.

Main Methods:

  • Review of existing literature on collagen hierarchical structure.
  • Summary of methods for isolating collagen aggregates (CAs).
  • Analysis of recent progress in utilizing CAs for material construction.

Main Results:

  • Collagen aggregates (CAs) retain inherent organizational features for constructing materials with ideal mechanical performance.
  • CAs enable the development of collagen materials with enhanced thermal and dimensional stability.
  • Emerging applications for CA-based materials span catalysis, environmental remediation, biomedicine, food packaging, energy storage, and sensors.

Conclusions:

  • Utilizing mesostructured collagen aggregates (CAs) offers a distinct strategy for creating advanced collagen materials.
  • CA-based materials demonstrate significant potential across diverse applications due to their inherent properties.
  • Further research is needed to address challenges in controllable CA production and material design.