A method of electrochemical deposition includes submerging a stainless steel surface of an object in a chitosan solution and applying a first electric potential between the submerged stainless steel surface and the chitosan solution for a predetermined time to form a chitosan surface coating. After rinsing and dehydrating, the chitosan coated surface is submerged in a solution having a predetermined concentration of a noble metal nitrate and a second electric potential is applied between the chitosan coated surface and the solution of the noble metal nitrate to deposit noble metal particles on the chitosan surface coating.
