Nanocomposite Hydrogel with High Toughness for Bioactuators

Authors

  • Min Kyoon Shin,

    1. Creative Research Center for Bio-Artificial Muscle Department of Biomedical Engineering Hanyang University, Seoul 133-791 (Korea)
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  • Geoffrey M. Spinks,

    1. ARC Center of Excellence in Electromaterials Science and Intelligent Polymer Research Institute University of Wollongong Wollongong NSW 2522 (Australia)
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  • Su Ryon Shin,

    1. Creative Research Center for Bio-Artificial Muscle Department of Biomedical Engineering Hanyang University, Seoul 133-791 (Korea)
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  • Sun I. Kim,

    1. Creative Research Center for Bio-Artificial Muscle Department of Biomedical Engineering Hanyang University, Seoul 133-791 (Korea)
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  • Seon Jeong Kim

    Corresponding author
    1. Creative Research Center for Bio-Artificial Muscle Department of Biomedical Engineering Hanyang University, Seoul 133-791 (Korea)
    • Creative Research Center for Bio-Artificial Muscle Department of Biomedical Engineering Hanyang University, Seoul 133-791 (Korea).
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Abstract

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Ferritin-based nanofibrous hydrogels that demonstrate synergy between the ferritin protein and the synthetic polymer matrix are fabricated. The hybrid hydrogels showed enhanced mechanical properties and repeated expansion and contraction without showing severe creep during pH switching. The ferritin nanoparticles incorporated into the hydrogel nanofibers improved the actuation stability of a hydrogel actuator by acting as elastic nanosprings in a nanoscale polymer.

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