Biocompatibility Assessment of Coatings Obtained in Argon and Nitrogen Atmospheres for TiNi Materials

This work aims to study the cytocompatibility of protective coatings obtained in argon and nitrogen atmospheres on a TiNi surface. Particular attention is paid comparing interaction cell culture with an uncoated sample, using for comparison number viable cells surface, phase composition, structure, wettability, surface charge topography. The Ti/Ni/Ti nanolaminate was deposited substrate by magnetron sputtering. Reaction annealing substrate, when heated 900 °C argon, leads formation dense two-layer coating 2.0–2.1 ?m thick: layer I (TiO + Ti2N), II (Ti4Ni2 O(N)). thin three-layer nanocoating 250 nm (TiO2 TiN), (Ti4Ni2N(O) Ti3Ni4), III (TiN). synthesized more favorable attachment proliferation because moderately hydrophilic rough mixed composition titanium nitrides oxides.