The RGD peptide is the binding motif of fibronectin to cell adhesion molecules. The RGDC peptide inhibits platelet aggregation and fibrinogen binding. Surfaces modified with the RGDC peptide were shown to be effective for osteoblast binding and proliferation. RGDC can be bound to gold particles and gold-coated implants via its sulfhydryl group in the cysteine residue.H-Arg-Gly-Asp-Cys-OH or H-RGDC-OH