▎ 摘　　要

NOVELTY - A graphene oxide/chitosan grafted dual network type hydrogel comprising first network graphene oxide/chitosan hydrogel prepared by grafting graphene oxide solution, chitosan solution, evocating agent, first monomer and crosslinking agent; and second network inserted in the internal network of the first network, and made by grafting second monomer, cross-linking agent and polymerization initiator under ultraviolet light irradiation, is new. USE - In biomedical applications, tissue engineering, and construction, chemical, mining and other fields. ADVANTAGE - The present hydrogel has high compressing strength and tensile strength; is prepared by simple and easy two-step method; and has excellent physical properties, such as viscoelasticity, high water content. By introducing a chitosan, the present hydrogel achieves increased biological compatibility. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation of the hydrogel.