▎ 摘　　要

NOVELTY - Use of graphene or graphene coating for improving blood compatibility of biological material and/or device, is claimed. USE - The graphene or graphene coating is useful for improving blood compatibility of biological material and/or device. ADVANTAGE - The graphene coating has good flexibility and good mechanical property, covers the biological material or instrument surface, improves original biological material or instrument blood compatibility, and improves biological safety and biocompatibility of the biological material or device and does not cause extra burden to biological tissue. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) improving blood compatibility of biological material and/or device, comprising preparing a graphene coating on the surface of the biological material and/or device; and (2) biological material and/or device with improved blood compatibility.