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    Influence of Dopant Nature on Biological Properties of ZnO Thin-Film Coatings on Ti Alloy Substrate

    Year: 2020

    Journal: Nanomaterials, Volume 10, JAN

    Authors: Stoleriu, Stefania; Lungu, Codruta; Ghitulica, Cristina Daniela; Surdu, Adrian; Voicu, Georgeta; Cucuruz, Andreia; Turculet, Claudiu Stefan; Ciocan, Lucian Toma

    Organizations: Sectoral Operational Programme Human Resources Development; European Social FundEuropean Social Fund (ESF); Romanian Government [POSDRU/86/1.2/S/58146]

    Keywords: ZnO thin film; spin coating; antibacterial test; in-vitro test

    In this paper, ZnO and Co2+/Mg2+-doped ZnO thin films on TiAlV alloy substrates were obtained. The films were deposited by spin coating of sol-gel precursor solutions and thermally treated at 600 degrees C for 2 h, in air and slow cooled. The doping ions concentration was 1.0 mol%. The study's aim was to obtain implantable metallic materials with improved biocompatibility and antibacterial qualities. The characteristics of the thin films were assessed from the point of view of microstructure, morphology, wetting properties, antibacterial activity and biological response in the presence of amniotic fluid stem cells (AFSC). The results proved that all deposited samples were nanostructured, suggesting a very good antibacterial effect and proving to be suitable supports for cellular adhesion and proliferation. All properties also depended on the doping ion nature.
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