PHYSIOCHEMICAL PROPERTIES OF TiO2 NANOPARTICLE THIN FILMS DEPOSITED ON STAINLESS STEEL

M. Basiaga, W. Walke, D. Nakonieczny, A. Hyla Faculty of Biomedical Engineering, Silesian University of Technology, Zabrze, Poland The purpose of this study was to evaluate the usefulness of TiO2 layer to improve hemocompatibility of 316LVM stainless steel. The TiO2 layers studied in this work were deposited from TiCl4 and H2O in a low-pressure Atomic Layer Deposition (ALD) reactor taking into account number of cycles and process temperature. As a part of the research electrochemical studies of the layer after 28 days exposure to artificial plasma were carried out. In particular, potentiostatic, potentiodynamic and impedance studies were conducted. The obtained results were the basis for selection of surface treatment method dedicated to blood-contacting stainless steel implants.