▎ 摘　　要

NOVELTY - The surface of stainless steel is electrochemically polished in an electrochemical cell, and heated in contact with a carbon precursor to form a graphene coating on the stainless steel surface. The electrochemical cell consists of an electrolyte, a cathode, and the stainless steel surface as anode, with the cathode and anode being submerged in the electrolyte. USE - Production of graphene coating on surface of stainless steel e.g. SS316L and SS316, used for implantable device. Uses include but are not limited to coronary/cardiovascular stents, cranial fixation, orthopedic stents, dental implants, biosensors, tissue engineering, and drug delivery. ADVANTAGE - The method forms graphene coating having excellent mechanical and anticorrosive properties, at relatively low pressures and temperatures, reducing the required input energy and thus overall expense. The graphene coating has the ability to control its properties, such as available reactive oxygen species (by controlling oxygen input in the system and using a more or less reducing atmosphere) and effective graphene surface area (by controlling the concentration of carbon precursor), and low cytotoxicity. The reduced graphene oxide coating improves the mechanical and biological properties rendering steel suitable for biomedical and biotechnological applications.