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Nanostructured TiNb coating improves the bioactivity of 3D printed PEEK
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SYSNO ASEP 0565698 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve SCOPUS Title Nanostructured TiNb coating improves the bioactivity of 3D printed PEEK Author(s) Cvrček, L. (CZ)
Krčil, J. (CZ)
Musílková, Jana (FGU-C) RID, ORCID
Musílková, Veronika (FGU-C)
Bačáková, Lucie (FGU-C) RID, ORCID
Nehasil, V. (CZ)
Denk, F. (CZ)
Čejka, Z. (CZ)Article number 111312 Source Title Materials and Design. - : Elsevier - ISSN 0264-1275
Roč. 224, Dec (2022)Number of pages 15 s. Language eng - English Country GB - United Kingdom Keywords PEEK ; TiNb ; coating ; anodic oxidation ; 3D printing ; bioactivity OECD category Orthopaedics R&D Projects GA20-01570S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support FGU-C - RVO:67985823 EID SCOPUS 85140979414 DOI 10.1016/j.matdes.2022.111312 Annotation Polyetheretherketone (PEEK) has mechanical properties suitable for the manufacturing of osseointegration implants. However, its biological properties can be significantly improved by surface modification. In this work, the macroscopic surface topography was obtained by 3D printing and then the 3D printed surface was coated with a TiNb layer. The coating made it possible to apply anodic oxidation, by which a surface with defined nanoscale topography was obtained. Thus, a material with a gradient surface topography and suitable chemical composition was prepared. The properties of the surface were analyzed using optical and scanning electron microscopy. The chemical composition was then evaluated by photoelectron spectroscopy. The roughness, the wettability, and the wear resistance of the surface were observed. The adhesion of the coating and the oxide layer was evaluated. The biological activity of samples was analyzed by seeding them with human osteoblast-like Saos-2 cells. The cell adhesion, proliferation, metabolic activity and viability was observed and was statistically evaluated. After this, the functionality of this surface modification was tested by applying it to an implant with a real geometry. The main conclusions show that the nanostructured TiNb layer on 3D printed PEEK significantly improves biological activity. Workplace Institute of Physiology Contact Lucie Trajhanová, lucie.trajhanova@fgu.cas.cz, Tel.: 241 062 400 Year of Publishing 2023 Electronic address https://doi.org/10.1016/j.matdes.2022.111312
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