Počet záznamů: 1
Hybrid coatings for orthopaedic implants formed by physical vapour deposition and microarc oxidation
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SYSNO ASEP 0560431 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Hybrid coatings for orthopaedic implants formed by physical vapour deposition and microarc oxidation Tvůrce(i) Gabor, R. (CZ)
Cvrček, L. (CZ)
Doubková, Martina (FGU-C) ORCID, RID
Nehasil, V. (CZ)
Hlinka, J. (CZ)
Unucka, P. (CZ)
Buřil, M. (CZ)
Podepřelová, A. (CZ)
Seidlerová, J. (CZ)
Bačáková, Lucie (FGU-C) RID, ORCIDČíslo článku 110811 Zdroj.dok. Materials and Design. - : Elsevier - ISSN 0264-1275
Roč. 219, July (2022)Poč.str. 17 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova Ti-6Al-4V ; PVD coating ; MAO process ; corrosion protection ; tribology ; mesenchymal stem cells Obor OECD Biomaterials (as related to medical implants, devices, sensors) CEP GA20-01570S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora FGU-C - RVO:67985823 UT WOS 000880130400004 EID SCOPUS 85131463121 DOI 10.1016/j.matdes.2022.110811 Anotace This study is focused on the preparation of new hybrid layers intended for surface modification of Ti-6Al-4V alloys for potential orthopaedic and dental applications. Combination of the technology of physical vapour deposition (PVD) and subsequent micro-arc oxidation (MAO) was utilized for the deposition of Ti and ZrTi to form hybrid oxide layers. The oxide layers were prepared using an alkaline electrolyte with glycerol as an additive under micro-arc discharge conditions with different Si content on their surfaces. The hybrid ZrTi coatings with a Zr/Si structure achieved the best tribological properties described by a low friction coefficient of 0.3 and high abrasion resistance. There was also an increase in corrosion potential and polarization resistance of hybrid ZrTi coatings. Although the proliferation of human bone marrow mesenchymal stem cells was slower on these hydrophilic Ti and ZrTi coatings than both on uncoated Ti-6Al-4V and the reference tissue culture polystyrene dishes, both types of hybrid coating promoted greater osteogenic differentiation of these cells, indicated by approx. twice as high activity of alkaline phosphatase. The hybrid oxide layers newly developed in this study – especially the layers with Zr – are therefore promising for coating metallic bone implants. Pracoviště Fyziologický ústav Kontakt Lucie Trajhanová, lucie.trajhanova@fgu.cas.cz, Tel.: 241 062 400 Rok sběru 2023 Elektronická adresa https://doi.org/10.1016/j.matdes.2022.110811
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