In clinical practice, the
wound on the surface of the skin is prone to
bacterial infection, for which healing of infected
wounds has always been a tremendous challenge for clinics and research institutions. We developed a multifunctional bactericidal, recyclable, and slow-release
graphene oxide-based
hydrogel for bacterial wound healing and real-time monitoring of
bacterial infection in this study. At the same time, the material has a sensing function, which can be used in the connection between the injured skin and the continuous detection equipment. QNGH (quaternarized
N-halamine-grafted GO
hydrogel) is manufactured by hydrogen bonding between quaternized
N-halamine-modified
graphene oxide and
polyvinyl alcohol (PVA). The results show that in the mouse model of full-thickness skin repair, the
hydrogel can continuously release germicidal
ions and recyclability, promoting wound healing and contraction. Further, the
graphene oxide-based
hydrogel has excellent strain sensing performance. It detects the bending and stretching movements of different parts of the human body quickly, stably, and sensitively to show an excellent real-time monitoring performance of human motion. The sensing function of the
hydrogel further broadens its application field. Therefore, this
hydrogel material is expected to be a candidate material for sensing devices at the
wound.