▎ 摘　　要

NOVELTY - The utility model claims a graphene silver nano fibre composite film, comprising a composite film main body, the inner part of the composite film main body is provided with a carboxylated graphene base layer, and the upper and lower side surfaces of the carboxylated graphite alkenyl layer are provided with a modified layer, and the outer side of one modified layer is covered with a medical PU film. The graphene silver nano fibre composite film uses carboxylated graphene base layer as carrier; the surface is set with a modified layer, wherein the modified layer is cross-linked with the amino group on the glycol chitosan molecule (GCS) on the polydopaminium, to realize the pH sensitive charge inversion characteristic; can be combined with bacterial target with negative charge on the surface, and then combined with load 2 through non-covalent bond, 2'-azo-bis (2 - (2-imidazolin-2-yl) propane) dihydrochloride (AIBI); forming high-efficiency photo-thermal induced targeting graphene nano antibacterial material (AIBI-GCS-PDA @ CG), so as to play the function of killing multiple drug-resistant bacteria; it is convenient for fixed length orderly tearing, convenient to use.