Biomimetic Underwater Adhesives with Environmentally Triggered Setting Mechanisms

Authors

  • Hui Shao,

    1. Department of Bioengineering, University of Utah 20 S. 2030 East, Room 506C, Salt Lake City, UT 84112 (USA)
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  • Russell J. Stewart

    Corresponding author
    1. Department of Bioengineering, University of Utah 20 S. 2030 East, Room 506C, Salt Lake City, UT 84112 (USA)
    • Department of Bioengineering, University of Utah 20 S. 2030 East, Room 506C, Salt Lake City, UT 84112 (USA).
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Abstract

original image

Inspired by the sandcastle worm, fluid complex coacervates of polyelectrolytes were formulated as water-borne underwater adhesives. The partially immiscible fluid phase can be delivered underwater and sets into a weight-bearing solid triggered by a change in the pH or temperature. Irreversible hardening occurs through oxidative coupling between catechol and primary amine sidechains.

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