40 Treatment of materials, namely, coating or surface modification or surface treatment of implants and artificial organs for attachment to soft tissue, such as ears; treatment of materials, namely, coating or surface modification or surface treatment of heart, vascular, urological, head and neck articles, namely, stents, subcutaneous valves for implantation, prosthetic tissues for parietal, visceral and vascular use; treatment of materials, namely, coating or surface modification or surface treatment of medical devices, namely, valves, pins, percutaneous devices, catheters, needles, hernia nets, pacers, sensors, tissue regenerative scaffolds; and treatment of materials, namely, coating or surface modification or surface treatment of cell culture plates