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Issue 10, 2011
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Artificial muscular microfibers: hydrogel with high speed tunable electroactivity

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Abstract

The advancement in polymer muscle-like actuator technologies is of immense importance in the development of biologically inspired designs for tissue substitutes where the mechanical robustness is combined with fast physico-chemical responsiveness, biocompatibility and electroactivity. The multiformability (films, fibres, tubules,…) and the multifunctionality (response to temperature, pH, electromagnetic excitation,…) of hydrogels make them a great candidate for electro-bio-active artificial implantable muscular fibers and as soft actuators for gentle micro-scale manipulations. With an end objective to conceive and fabricate a system with instantaneous response to external stimuli, we present the results of an experimental method used to prepare long thin self-assembled hydrogel fibers with aspect ratio greater than 105 (length/diameter). We show for the first time that these fibers are electroactive and dynamically tunable under low applied electric field (as low as 500 V m−1) with high potential in instantaneous sensing of pH and ionic strength variations in their surrounding medium.

Graphical abstract: Artificial muscular microfibers: hydrogel with high speed tunable electroactivity

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Supplementary files

Article information


Submitted
25 Jan 2011
Accepted
06 Mar 2011
First published
01 Apr 2011

Soft Matter, 2011,7, 4833-4838
Article type
Paper

Artificial muscular microfibers: hydrogel with high speed tunable electroactivity

M. Bassil, M. Ibrahim and M. El Tahchi, Soft Matter, 2011, 7, 4833
DOI: 10.1039/C1SM05131H

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