The surface parameters modifications at nano scale for biomedical applications

Functional coatings deposition is an effective way of surface modification with direct control of stoichiometry, impurity elements, functional groups and surface charges. Modified surface properties such as composition, roughness, wettability have effect on the most important processes at biomaterial interface. The aim of present study was the analysis of surface roughness and surface free energy parameters of oxide Al₂O₃ and Ta₂O₅ coatings and the possibility to separate the influence of such factors on the regularities and mechanisms of nano materials interactions with the biological objects.