초록 |
Biocompatible and self-healing hydrogels that mimic the functions of human skin have aroused a lot of interest in fields such human motion detection, wearable electronic devices, and skin-like electronic devices. Reduced graphene oxide (rGO) has been widely applied to drug delivery, biosensors, electrical devices, and bioimaging based on physicochemical characteristics such as high electrical and thermal conductivity. Graphene is a two-dimensional (2D) sheet of sp2 carbon atoms with a honeycomb structure that can enhance various properties such as high mechanical strength, electrical conductivity and other remarkable properties. In addition, rGO substituted with a carboxyl group increases stability and dispersibility in aqueous solution. In this study, highly stretchable and conductive rGO-based hydrogels were synthesized. In addition, mechanical and electrical properties, swelling kinetics, equilibrium water content (EWC) and gel fraction of hydrogels were investigated. |