Počet záznamů: 1
Preparation of highly wettable coatings on Ti–6Al–4V ELI alloy for traumatological implants using micro-arc oxidation in an alkaline electrolyte
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SYSNO ASEP 0535575 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Preparation of highly wettable coatings on Ti–6Al–4V ELI alloy for traumatological implants using micro-arc oxidation in an alkaline electrolyte Tvůrce(i) Gabor, R. (CZ)
Doubková, Martina (FGU-C) ORCID, RID
Gorošová, S. (CZ)
Malaník, K. (CZ)
Vandrovcová, Marta (FGU-C) RID, ORCID
Cvrček, L. (CZ)
Drobíková, K. (CZ)
Kutláková Mamulová, K. (CZ)
Bačáková, Lucie (FGU-C) RID, ORCIDČíslo článku 19780 Zdroj.dok. Scientific Reports. - : Nature Publishing Group - ISSN 2045-2322
Roč. 10, č. 1 (2020)Poč.str. 16 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova Ti-6AI-4V ELI alloy coatins ; implants ; micro-arc oxidation ; alkaline electrolyte ; biocompatibility Vědní obor RIV FI - Traumatologie, ortopedie Obor OECD Orthopaedics CEP GA20-01570S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora FGU-C - RVO:67985823 UT WOS 000594645500002 EID SCOPUS 85095943561 DOI 10.1038/s41598-020-76448-w Anotace Pulsed micro-arc oxidation (MAO) in a strongly alkaline electrolyte (pH > 13), consisting of Na2SiO3⋅9H2O and NaOH, was used to form a thin porous oxide coating consisting of two layers differing in chemical and phase composition. The unique procedure, combining MAO and removal of the outer layer by blasting, enables to prepare a coating suitable for application in temporary traumatological implants. A bilayer formed in an alkaline electrolyte environment during the application of MAO enables the formation of a wear-resistant layer with silicon incorporated in the oxide phase. Following the removal of the outer rutile-containing porous layer, the required coating properties for traumatological applications were determined. The prepared surfaces were characterized by scanning electron microscopy, X-ray diffraction patterns, X-ray photoelectron spectroscopy, atomic force microscopy and contact angle measurements. Cytocompatibility was evaluated using human osteoblast-like Saos-2 cells. The newly-developed surface modifications of Ti–6Al–4V ELI alloy performed satisfactorily in all cellular tests in comparison with MAO-untreated alloy and standard tissue culture plastic. High cell viability was supported, but the modifications allowed only relatively slow cell proliferation, and showed only moderate osseointegration potential without significant support for matrix mineralization. Materials with these properties are promising for utilization in temporary traumatological implants. Pracoviště Fyziologický ústav Kontakt Lucie Trajhanová, lucie.trajhanova@fgu.cas.cz, Tel.: 241 062 400 Rok sběru 2021 Elektronická adresa https://www.nature.com/articles/s41598-020-76448-w
Počet záznamů: 1