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In this paper, we report the fabrication and characterization of electro-chemical actuator using platinum nanowire networks. Reversible strain amplitudes of ~ 0.04% have been observed by controlling the surface electronic charge density of the nanowire network through an applied voltage in an electrolyte solution. Displacement amplitudes of up to 3mm was observed for an applied voltage of only ±3 V, much smaller compared to most commercial piezoceramic materials. These results indicate the potential application of platinum nanowires for construction of artificial muscles and materials with tunable electronic properties.

A Platinum Nanowires Actuator: Metallic Nano-Muscles