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Advanced Materials

Bio-inspired Design of Submerged Hydrogel-Actuated Polymer Microstructures Operating in Response to pH

Authors

  • Lauren D. Zarzar,

    1. School of Engineering and Applied Sciences, Department of Chemistry and Chemical Biology, Wyss Institute for Biologically Inspired Engineering, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA
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  • Philseok Kim,

    1. School of Engineering and Applied Sciences, Department of Chemistry and Chemical Biology, Wyss Institute for Biologically Inspired Engineering, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA
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  • Joanna Aizenberg

    Corresponding author
    1. School of Engineering and Applied Sciences, Department of Chemistry and Chemical Biology, Wyss Institute for Biologically Inspired Engineering, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA
    • School of Engineering and Applied Sciences, Department of Chemistry and Chemical Biology, Wyss Institute for Biologically Inspired Engineering, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA.
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Abstract

A bio-inspired hybrid materials system has been developed by utilizing pH-responsive, poly(acrylic acid-co-acrylamide) hydrogel as the “muscle” that dynamically and reversibly actuates the embedded microposts and microfins while the sample is submerged. The system is designed to provide uniform directional bending actuation over a large area and integrated with electrochemical and microfluidic cells.

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