Publicado 4 números por año
ISSN Imprimir: 1093-3611
ISSN En Línea: 1940-4360
Indexed in
THIN BIOACTIVE Zn-SUBSTITUTED HYDROXYAPATITE COATING DEPOSITED ON Ti SUBSTRATE BY RADIOFREQUENCY SPUTTERING
SINOPSIS
In this study, Zn-substituted hydroxyapatite synthesized by mechanochemical activation was deposited on titanium substrates by a radiofrequency sputtering method. The microstructure, composition, and sputtering rate of the deposited films were examined. The coatings are formed by an amorphous and quasi-amorphous type of structure with good adhesion to the substrate. The elemental composition of the coatings is close to a stoichiometric hydroxyapatite one with a trace of Zn. It was discovered that it is possible to deposit a thin amorphous coating from a crystalline target by increasing the target-to-substrate distance and subsequently decreasing the substrate temperature. This provides a possibility of forming an antibacterial bioactive coating with a high level of bioresorbability which could be used for a rapid antibacterial effect. Also, amorphous calcium phosphate could be used as a component of a multilayer coating comprised of substituted hydroxyapatite in both amorphous and crystalline forms for improved implant stability.
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Prosolov Konstantin, Belyavskaya Olga, Linders Juergen, Loza Kateryna, Prymak Oleg, Mayer Christian, Rau Julietta, Epple Matthias, Sharkeev Yurii, Glancing Angle Deposition of Zn-Doped Calcium Phosphate Coatings by RF Magnetron Sputtering, Coatings, 9, 4, 2019. Crossref