A Closer Look at the Polyacrylamide Fibers for Natural-Like Artificial Muscle Fabrication
Polyacrylamide (PAAM) gels suits better the artificial muscle fabrication despite their response time which stays low compared to natural human muscle. This main problem is due to their bulky form where the ions exchange takes a long time compared to the microsecond scale in human muscle. Thus a successful artificial muscle will need to replicate the small scales of the muscle fibers that can achieve fast response. In this study we develop a technique for PAAM gel fibers fabrication with micrometric diameter, 1D structure, aiming to convert isotropic swelling into a directional one and we propose an electrical activation mode for a linear actuation mechanism.
Pietro VINCENZINI, Yoseph BAR-COHEN and Federico CARPI
M. Bassil et al., "A Closer Look at the Polyacrylamide Fibers for Natural-Like Artificial Muscle Fabrication", Advances in Science and Technology, Vol. 61, pp. 85-90, 2008