Inventor(s)

Abstract

Disclosed are sensors comprising electrodes, such as cutaneous electrodes. The electrodes comprise an ion gel superimposed on a host layer, such as poly(3,4- ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS). The ion gel is at least 30 percent crosslinked by weight with the remainder in liquid form. The ion gel is comprised of polymerizable/nonpolymerizable ionic liquid blend and a crosslinker, such as polyurethane dimethacrylate, urethane methacrylate oligomer, silicone acrylate, or acrylate. The host layer can be overlayed on an electrically conductive layer which, in turn, can be overlayed on a substrate. A suitable material for the substrate is polyimide. A suitable material for the electrically conductive layer is gold, silver, copper, platinum, aluminum, a combination thereof, or an alloy thereof. The electrode can have a skin contact impedance that is 25 times greater than gold. The ion gel can be fabricated using a biocompatible photoinitiator via photopolymerization.

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