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Issue 40, 2017
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Mimicking muscle fiber structure and function through electromechanical actuation of electrospun silk fiber bundles

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Abstract

Here we detail the fabrication and testing of artificial muscles fabricated from composites of the natural biopolymer silk fibroin and conducting polymers. Aligned nanofiber bundles of silk that mimic the structure of skeletal muscles were produced via electrospinning, and the fibers were infused with conducting polymers using chemical and electrochemical in situ polymerization methods. The resulting bundles of individual, electroactive fibers underwent electromechanical actuation in biologically-relevant electrolyte solutions when low potentials were applied, thus mimicking the contractile function of native muscles. The fabrication methods, bulk mechanical properties, stress and strain generation, and stability under repeated actuation for fiber bundles coated with different conducting polymer formulations are presented.

Graphical abstract: Mimicking muscle fiber structure and function through electromechanical actuation of electrospun silk fiber bundles

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Publication details

The article was received on 14 Jul 2017, accepted on 28 Sep 2017 and first published on 04 Oct 2017


Article type: Paper
DOI: 10.1039/C7TB01904A
Citation: J. Mater. Chem. B, 2017,5, 8105-8114
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    Mimicking muscle fiber structure and function through electromechanical actuation of electrospun silk fiber bundles

    S. Y. Severt, S. L. Maxwell, J. S. Bontrager, J. M. Leger and A. R. Murphy, J. Mater. Chem. B, 2017, 5, 8105
    DOI: 10.1039/C7TB01904A

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