Design of self-healing carbon-based hydrogels for wearable motion monitoring

Abstract

Abstract Conductive hydrogels have been extensively exploited in wearable medical monitoring, intelligent robotics, and human-machine interaction. Here, we construct an interpenetrating network of self-healing hydrogel using gelatine-modified carbon nanotubes (G/C) and polyvinyl alcohol (PVA) polymerization chains (given as PGC). A bonding agent, borax, was chemically cross-linked with PVA molecular chains to impart self-healing ability. The addition of G/C enhances the tensile behavior and conductivity of the hydrogels. With superior sensing capability and favorable biocompatibility, the PGC hydrogel described in this study offers valuable insights for developing ideal wearable strain sensors.