▎ 摘　　要

NOVELTY - The release material includes graphene oxide modified warfarin. The graphene oxide modified warfarin comprises warfarin and graphene oxide which are connected by a non covalent bond. The graphene oxide is a two-dimensional nano graphene oxide or film-graphene oxide. USE - Anti-freezing sustained release material. ADVANTAGE - The sustained release material comprises warfarin and graphene oxide which is connected through non covalent bond, thereby the anticoagulant performance is greatly enhanced. The cost of raw material is low so the anti-freezing sustained release material is cheap. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a method for preparing anticoagulant sustained release material; and (2) an application of anti-freezing sustained release material. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic graphical view of the prothrombin time (PT) with different group histograms. (Drawing includes non-English language text)