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http://elar.urfu.ru/handle/10995/90575
Название: | Surface functionalization of biomedical Ti-6Al-7Nb alloy by liquid metal dealloying |
Авторы: | Okulov, I. V. Joo, S. -H. Okulov, A. V. Volegov, A. S. Luthringer, B. Willumeit-Römer, R. Zhang, L. Mädler, L. Eckert, J. Kato, H. |
Дата публикации: | 2020 |
Издатель: | MDPI AG |
Библиографическое описание: | Surface functionalization of biomedical Ti-6Al-7Nb alloy by liquid metal dealloying / I. V. Okulov, S. -H. Joo, A. V. Okulov, A. S. Volegov, et al. . — DOI 10.3390/nano10081479 // Nanomaterials. — 2020. — Vol. 8. — Iss. 10. — P. 1-12. |
Аннотация: | Surface functionalization is an effective approach to change the surface properties of a material to achieve a specific goal such as improving the biocompatibility of the material. Here, the surface of the commercial biomedical Ti-6Al-7Nb alloy was functionalized through synthesizing of a porous surface layer by liquid metal dealloying (LMD). During LMD, the Ti-6Al-7Nb alloy is immersed in liquid magnesium (Mg) and both materials react with each other. Particularly, aluminum (Al) is selectively dissolved from the Ti-6Al-7Nb alloy into liquid Mg while titanium (Ti) and niobium (Nb) diffuse along the metal/liquid interface to form a porous structure. We demonstrate that the porous surface layer in the Ti-6Al-7Nb alloy can be successfully tailored by LMD. Furthermore, the concentration of harmful Al in this porous layer is reduced by about 48% (from 5.62 ± 0.11 wt.% to 2.95 ± 0.05 wt.%) after 30 min of dealloying at 1150 K. The properties of the porous layer (e.g., layer thickness) can be tuned by varying the dealloying conditions. In-vitro tests suggest improved bone formation on the functionalized porous surface of the Ti-6Al-7Nb alloy. © 2020 by the authors. Licensee MDPI, Basel, Switzerland. |
Ключевые слова: | BIOCOMPATIBILITY BIOMATERIAL DEALLOYING POROUS SURFACE SURFACE FUNCTIONALIZATION |
URI: | http://elar.urfu.ru/handle/10995/90575 |
Условия доступа: | info:eu-repo/semantics/openAccess cc-by |
Идентификатор SCOPUS: | 85090641060 |
Идентификатор WOS: | 000564836800001 |
Идентификатор PURE: | 13916336 |
ISSN: | 2079-4991 |
DOI: | 10.3390/nano10081479 |
Сведения о поддержке: | European Research Council, ERC Tohoku University Ministry of Science and Higher Education of the Russian Federation Nanjing University of Science and Technology, NUST: K2-2020-020 MA 3333/13-1 Supervision, I.V.O., R.W.-R., L.Z., L.M., J.E. and H.K.; Validation, I.V.O., S.-H.J., and B.L.; Writing – original draft, I.V.O. and B.L.; Writing – review & editing, all. All authors have read and agreed to the published version Funding: The financial support was provided by the German Science Foundation under the Leibniz Program of the manuscript. (Grant MA 3333/13-1), by the European Research Council (ERC) under the ERC Advanced Grant INTELHYB (grant Funding: The financial support was provided by the German Science Foundation under the Leibniz Program Ministry of Science and Higher Education of the Russian Federation, in the framework of the Increase Competitiveness (Grant MA 3333/13-1), by the European Research Council (ERC) under the ERC Advanced Grant INTELHYB Program of NUST «MISiS» (grant number K2-2020-020). I.V.O. is grateful for the financial support provided by the International Collaboration Center, Institute for Materials Research (ICC-IMR), Tohoku University, Japan. 02.A03.21.0006), and the Ministry of Science and Higher Education of the Russian Federation, in the framework Conflicts of Interest: The authors declare no conflict of interest. of the Increase Competitiveness Program of NUST «MISiS» (grant number K2-2020-020). I.V.O. is grateful for the financial support provided by the International Collaboration Center, Institute for Materials Research (ICC-IMR), Tohoku University, Japan. |
Располагается в коллекциях: | Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC |
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Файл | Описание | Размер | Формат | |
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10.3390-nano10081479.pdf | 6,75 MB | Adobe PDF | Просмотреть/Открыть |
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