Adjustable dual temperature-sensitive hydrogel based on a self-assembly cross-linking strategy with highly stretchable and healable properties

A novel PNIPAm/PNAGA double-network hydrogel based on a self-assembly cross-linking strategy was prepared for the first time. Due to the existence of various hydrogen bonds, the hydrogel exhibits a wide and adjustable dual temperature-sensitive behavior of LCST-type and UCST-type, and highly stretchable, and healable properties, which indicated great potential applications in the simulation of human skin to monitor various ambient temperatures.