The technical field of the application is a device for medical, oral or
dental hygiene. The application discloses a hydrogel material and a preparation method and application thereof. The preparation method of the hydrogel material comprises: preparing a ZnSe / rGO
heterojunction by a hydrothermal method through ZnSe and rGO, wherein the ZnSe is a
semiconductor material
zinc selenide, and the rGO is a conductor material reduced
graphene oxide; and uniformly dispersing the ZnSe / rGO
heterojunction in a GelMA matrix, and loading and fixing the ZnSe / rGO
heterojunction on the GelMA to obtain a hydrogel material Z / r@G, wherein Z refers to ZnSe, r refers to rGO, and G refers to GelMA, and the GelMA is methacrylated
gelatin. The application develops a preventive strategy capable of delaying or reducing
cell aging, which can not only avoid the influence of excessive removal of aged cells on later bone repair, but also widely exert an anti-
aging effect.