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Related Experiment Videos

Towards a fibrous composite with dynamically controlled stiffness: lessons from echinoderms.

J A Trotter1, J Tipper, G Lyons-Levy

  • 1Department of Cell Biology and Physiology, University of New Mexico School of Medicine, Albuquerque, NM 87131, USA. jtrotter@salud.unm.edu

Biochemical Society Transactions
|August 30, 2000
PubMed
Summary
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Sea cucumber dermis uses collagen fibrils and microfibrils to control tissue strength. Researchers are developing synthetic materials that mimic this natural stress-transfer mechanism for advanced applications.

Area of Science:

  • Biomaterials Science
  • Echinoderm Biology
  • Connective Tissue Research

Background:

  • Echinoderms like sea urchins and sea cucumbers regulate connective tissue properties via stress transfer between collagen fibrils.
  • Collagen fibrils in these organisms are spindle-shaped with a high aspect ratio and organized by a fibrillin microfibril network.
  • Neural control influences soluble macromolecules that regulate interactions between collagen fibrils.

Purpose of the Study:

  • To characterize the non-linear viscoelastic properties of sea cucumber dermis.
  • To identify the structures, molecules, and molecular interactions governing these properties.
  • To develop novel reagents for controlled stress transfer in biomaterials.

Main Methods:

  • Non-linear viscoelastic property characterization of sea cucumber dermis.

Related Experiment Videos

  • Structural and molecular analysis of connective tissues.
  • Development of covalent binding reagents for fibril surface modification.
  • Design of photo- or electro-sensitive cross-linking agents.

    • Main Results:

    • Detailed characterization of sea cucumber dermal viscoelasticity under various conditions.
    • Identification of key molecular components and their roles in stress transfer.
    • Development of prototype reagents for chemically controlled stress transfer.

    Conclusions:

    • Understanding echinoderm connective tissue mechanics provides insights for biomaterial design.
    • Developing synthetic analogues with controlled cross-linking can mimic natural tissue adaptability.
    • This research paves the way for advanced materials with tunable mechanical properties.