Видання зареєстровані авторами шляхом самоархівування
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Item Effects of the sources of calcium and phosphorus on the structural and functional properties of ceramic coatings on titanium dental implants produced by plasma electrolytic oxidation(Elsevier, 2021) Кириленко, Сергій Дмитрович; Kyrylenko, Serhii Dmytrovych; Warchoł, F.; Олешко, Олександр Миколайович; Oleshko, Oleksandr Mykolaiovych; Гусак, Євгенія Володимирівна; Husak, Yevheniia Volodymyrivna; Kazek-Kęsik, A.; Корнiєнко, Вiкторiя Володимирiвна; Korniienko, Viktoriia Volodymyrivna; Дейнека, Володимир Миколайович; Deineka, Volodymyr Mykolaiovych; Sowa, M.; Maciej, A.; Michalska, J.; Jakóbik-Kolon, A.; Matuła, I.; Basiaga, M.; Голубнича, Вікторія Миколаївна; Holubnycha, Viktoriia Mykolaivna; Stolarczyk, A.; Pisarek, M.; Mishchenko, O.; Погорєлов, Максим Володимирович; Pohorielov, Maksym Volodymyrovych; Simka, W.Plasma Electrolytic Oxidation (PEO) is as a promising technique to modify metal surfaces by application of oxide ceramic coatings with appropriate physical, chemical and biological characteristics. Therefore, objective of this research was to find the simplest settings, yet able to produce relevant bioactive implant surfaces layers on Ti implants by means of PEO. We show that an electrolyte containing potassium dihydrogen phosphate as a source of P and either calcium hydroxide or calcium formate as a source of Ca in combination with a chelating agent, ethylenediamine tetraacetic acid (EDTA), is suitable for PEO to deliver coatings with desired properties. We determined surface morphology, roughness, wettability, chemical and phase composition of titanium after the PEO process. To investigate biocompatibility and bacterial properties of the PEO oxide coatings we used microbial and cell culture tests. The electrolyte based on Ca(OH)2 and EDTA promotes active crystallization of apatites after PEO processing of the Ti implants. The PEO layers can increase electrochemical corrosion resistance. The PEO can be potentially used for development of bioactive surfaces with increased support of eukaryotic cells while inhibiting attachment and growth of bacteria without use of antibacterial agents.Item Formation of a Bacteriostatic Surface on ZrNb Alloy via Anodization in a Solution Containing Cu Nanoparticles(MDPI, 2020) Корнiєнко, Вiкторiя Володимирiвна; Корниенко, Виктория Владимировна; Korniienko, Viktoriia Volodymyrivna; Олешко, Олександр Миколайович; Олешко, Александр Николаевич; Oleshko, Oleksandr Mykolaiovych; Гусак, Євгенія Володимирівна; Гусак, Евгения Владимировна; Husak, Yevheniia Volodymyrivna; Дейнека, Володимир Миколайович; Дейнека, Владимир Николаевич; Deineka, Volodymyr Mykolaiovych; Голубнича, Вікторія Миколаївна; Голубничая, Виктория Николаевна; Holubnycha, Viktoriia Mykolaivna; Mishchenko, O.; Kazek-Kęsik, A.; Jakobik-Kolon, A.; Пшеничний, Роман Миколайович; Пшеничный, Роман Николаевич; Pshenychnyi, Roman Mykolaiovych; Leśniak-Ziółkowska, K.; Kalinkevich, O.; Kalinkevich, A.; Pisarek, M.; Simka, W.; Погорєлов, Максим Володимирович; Погорелов, Максим Владимирович; Pohorielov, Maksym VolodymyrovychHigh strength, excellent corrosion resistance, high biocompatibility, osseointegration ability, and low bacteria adhesion are critical properties of metal implants. Additionally, the implant surface plays a critical role as the cell and bacteria host, and the development of a simultaneously antibacterial and biocompatible implant is still a crucial challenge. Copper nanoparticles (CuNPs) could be a promising alternative to silver in antibacterial surface engineering due to low cell toxicity. In our study, we assessed the biocompatibility and antibacterial properties of a PEO (plasma electrolytic oxidation) coating incorporated with CuNPs (Cu nanoparticles). The structural and chemical parameters of the CuNP and PEO coating were studied with TEM/SEM (Transmission Electron Microscopy/Scanning Electron Microscopy), EDX (Energy-Dispersive X-ray Dpectroscopy), and XRD (X-ray Diffraction) methods. Cell toxicity and bacteria adhesion tests were used to prove the surface safety and antibacterial properties. We can conclude that PEO on a ZrNb alloy in Ca–P solution with CuNPs formed a stable ceramic layer incorporated with Cu nanoparticles. The new surface provided better osteoblast adhesion in all time-points compared with the nontreated metal and showed medium grade antibacterial activities. PEO at 450 V provided better antibacterial properties that are recommended for further investigation.