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Madou, Mark
BIO-MEMS Lab
Research Interests
  • Medical Diagnostics

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Voltage-switchable artificial muscles actuating at near neutral pH

Cited 29 times inthomson ciCited 31 times inthomson ci
Title
Voltage-switchable artificial muscles actuating at near neutral pH
Author
Moschou, EAMadou, MarkBachas, LGDaunert, S
Keywords
Artificial muscle; Electroactuation; Hydrogel; Neutral pH environment
Issue Date
200605
Publisher
ELSEVIER SCIENCE SA
Citation
SENSORS AND ACTUATORS B-CHEMICAL, v.115, no.1, pp.379 - 383
Abstract
Novel artificial muscle materials were developed, which can be electrically actuated at near neutral pH environments by low applied potential (3 V or less). The artificial muscle material is based on a hydrogel that is composed of acrylamide and a carboxylic acid derivative, such as acrylic acid, and is doped with a polypyrrole/carbon black composite. The electroactuation response of the artificial muscle is optimized in terms of the constituents of the hydrogel precursor solution and the polymerization conditions. It is shown that the introduction of the dicarboxylic acid monomer maleic acid increases the osmotic pressure arising at the hydrogel/electrolyte interface, increasing the bending response of the material. Additionally, the increase of the polymerization temperature and the use of the crosslinking agent N,N′-methylenebisacrylamide, which promotes intermolecular interactions within the hydrogel network, result in the development of artificial muscles with increased and reproducible electroactuation.
URI
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DOI
http://dx.doi.org/10.1016/j.snb.2005.09.021
ISSN
0925-4005
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