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Issue 1, 2016
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A soft biomolecule actuator based on a highly functionalized bacterial cellulose nano-fiber network with carboxylic acid groups

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Abstract

Upcoming human-related applications such as soft wearable electronics, flexible haptic systems, and active bio-medical devices will require bio-friendly actuating materials. Here, we report a soft biomolecule actuator based on carboxylated bacterial cellulose (CBC), ionic liquid (IL), and poly (3,4-ethylenedioxythiophene)–poly(styrenesulfonate) (PEDOT:PSS) electrodes. Soft and biocompatible polymer–IL composites were prepared via doping of CBC with ILs. The highly conductive PEDOT:PSS layers were deposited on both sides of the CBC–IL membranes by a dip-coating technique to yield a sandwiched actuator system. Ionic conductivity and ionic exchange capacity of the CBC membrane can be increased up to 22.8 times and 1.5 times compared with pristine bacterial cellulose (BC), respectively, resulting in 8 times large bending deformation than the pure BC actuators with metallic electrodes in an open air environment. The developed CBC–IL actuators show significant progress in the development of biocompatible and soft actuating materials with quick response, low operating voltage and comparatively large bending deformation.

Graphical abstract: A soft biomolecule actuator based on a highly functionalized bacterial cellulose nano-fiber network with carboxylic acid groups

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Publication details

The article was received on 25 Mar 2015, accepted on 26 Sep 2015 and first published on 28 Sep 2015


Article type: Paper
DOI: 10.1039/C5SM00707K
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Citation: Soft Matter, 2016,12, 246-254

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    A soft biomolecule actuator based on a highly functionalized bacterial cellulose nano-fiber network with carboxylic acid groups

    F. Wang, J. Jeon, S. Park, C. Kee, S. Kim and I. Oh, Soft Matter, 2016, 12, 246
    DOI: 10.1039/C5SM00707K

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