Copper nanoparticle coated carbon dot real-time monitoring type antibacterial hydrogel as well as preparation method and application thereof

The invention discloses copper nanoparticle coated carbon dot real-time monitoring type antibacterial hydrogel and a preparation method and application thereof, and belongs to the technical field of new materials, CuNPs and CQDs are compounded to prepare a CuNPs and CQDs composite material, after CuNPs is oxidized, CQDs fluorescence can be quenched, wound dressing state change can be monitored in real time, then CuNPs and CQDs are uniformly loaded in PVA hydrogel, and the antibacterial hydrogel is obtained. The prepared CuNPs-coated CQDs-PVA hydrogel has more three-dimensional pores and higher water absorption, the water absorption capacity can reach 350% or above of the weight of the hydrogel, and more wound exudate can be absorbed; the fluorescence intensity of the CuNPs (at) CQDs-PVA hydrogel can represent the use condition of the hydrogel, and a diffusion ring of a bacteriostatic agent CuNPs is marked by a fluorescent ring of the CQDs; the prepared CuNPs-coated CQDs-PVA hydrogel has very good ductility, t