Surface Modification of Biomedical Ti-18Zr-15Nb Alloy by Atomic Layer Deposition and Ag Nanoparticles Decoration
Superelastic biocompatible alloys attract significant attention as novel materials for bone tissue replacement. These alloys are often composed of three or more components that lead to the formation of complex oxide films on their surfaces. For practical use, it is desirable to have a single-compone...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Journal of Functional Biomaterials |
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| Online Access: | https://www.mdpi.com/2079-4983/14/5/249 |
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| author | Anton Konopatsky Tatyana Teplyakova Vadim Sheremetyev Tamara Yakimova Olga Boychenko Marina Kozik Dmitry Shtansky Sergey Prokoshkin |
| author_facet | Anton Konopatsky Tatyana Teplyakova Vadim Sheremetyev Tamara Yakimova Olga Boychenko Marina Kozik Dmitry Shtansky Sergey Prokoshkin |
| author_sort | Anton Konopatsky |
| collection | DOAJ |
| description | Superelastic biocompatible alloys attract significant attention as novel materials for bone tissue replacement. These alloys are often composed of three or more components that lead to the formation of complex oxide films on their surfaces. For practical use, it is desirable to have a single-component oxide film with a controlled thickness on the surface of biocompatible material. Herein we investigate the applicability of the atomic layer deposition (ALD) technique for surface modification of Ti-18Zr-15Nb alloy with TiO<sub>2</sub> oxide. It was found that a 10–15 nm thick, low-crystalline TiO<sub>2</sub> oxide layer is formed by ALD method over the natural oxide film (~5 nm) of the Ti-18Zr-15Nb alloy. This surface consists of TiO<sub>2</sub> exclusively without any additions of Zr or Nb oxides/suboxides. Further, the obtained coating is modified by Ag nanoparticles (NPs) with a surface concentration up to 1.6% in order to increase the material’s antibacterial activity. The resulting surface exhibits enhanced antibacterial activity with an inhibition rate of more than 75% against <i>E. coli</i> bacteria. |
| first_indexed | 2024-03-11T03:36:25Z |
| format | Article |
| id | doaj.art-5af939eaadc142f0b13eb6d8cf5bc4b2 |
| institution | Directory Open Access Journal |
| issn | 2079-4983 |
| language | English |
| last_indexed | 2024-03-11T03:36:25Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Functional Biomaterials |
| spelling | doaj.art-5af939eaadc142f0b13eb6d8cf5bc4b22023-11-18T01:56:40ZengMDPI AGJournal of Functional Biomaterials2079-49832023-04-0114524910.3390/jfb14050249Surface Modification of Biomedical Ti-18Zr-15Nb Alloy by Atomic Layer Deposition and Ag Nanoparticles DecorationAnton Konopatsky0Tatyana Teplyakova1Vadim Sheremetyev2Tamara Yakimova3Olga Boychenko4Marina Kozik5Dmitry Shtansky6Sergey Prokoshkin7National University of Science and Technology “MISIS”, Leninsky Prospect 4s1, 119049 Moscow, RussiaNational University of Science and Technology “MISIS”, Leninsky Prospect 4s1, 119049 Moscow, RussiaNational University of Science and Technology “MISIS”, Leninsky Prospect 4s1, 119049 Moscow, RussiaSchool of Chemistry, Lomonosov Moscow State University, 119991 Moscow, RussiaSchool of Chemistry, Lomonosov Moscow State University, 119991 Moscow, RussiaNational University of Science and Technology “MISIS”, Leninsky Prospect 4s1, 119049 Moscow, RussiaNational University of Science and Technology “MISIS”, Leninsky Prospect 4s1, 119049 Moscow, RussiaNational University of Science and Technology “MISIS”, Leninsky Prospect 4s1, 119049 Moscow, RussiaSuperelastic biocompatible alloys attract significant attention as novel materials for bone tissue replacement. These alloys are often composed of three or more components that lead to the formation of complex oxide films on their surfaces. For practical use, it is desirable to have a single-component oxide film with a controlled thickness on the surface of biocompatible material. Herein we investigate the applicability of the atomic layer deposition (ALD) technique for surface modification of Ti-18Zr-15Nb alloy with TiO<sub>2</sub> oxide. It was found that a 10–15 nm thick, low-crystalline TiO<sub>2</sub> oxide layer is formed by ALD method over the natural oxide film (~5 nm) of the Ti-18Zr-15Nb alloy. This surface consists of TiO<sub>2</sub> exclusively without any additions of Zr or Nb oxides/suboxides. Further, the obtained coating is modified by Ag nanoparticles (NPs) with a surface concentration up to 1.6% in order to increase the material’s antibacterial activity. The resulting surface exhibits enhanced antibacterial activity with an inhibition rate of more than 75% against <i>E. coli</i> bacteria.https://www.mdpi.com/2079-4983/14/5/249superelastic Ti-Zr-Nb alloysurface modificationatomic layer depositionAg nanoparticles synthesisantibacterial properties |
| spellingShingle | Anton Konopatsky Tatyana Teplyakova Vadim Sheremetyev Tamara Yakimova Olga Boychenko Marina Kozik Dmitry Shtansky Sergey Prokoshkin Surface Modification of Biomedical Ti-18Zr-15Nb Alloy by Atomic Layer Deposition and Ag Nanoparticles Decoration Journal of Functional Biomaterials superelastic Ti-Zr-Nb alloy surface modification atomic layer deposition Ag nanoparticles synthesis antibacterial properties |
| title | Surface Modification of Biomedical Ti-18Zr-15Nb Alloy by Atomic Layer Deposition and Ag Nanoparticles Decoration |
| title_full | Surface Modification of Biomedical Ti-18Zr-15Nb Alloy by Atomic Layer Deposition and Ag Nanoparticles Decoration |
| title_fullStr | Surface Modification of Biomedical Ti-18Zr-15Nb Alloy by Atomic Layer Deposition and Ag Nanoparticles Decoration |
| title_full_unstemmed | Surface Modification of Biomedical Ti-18Zr-15Nb Alloy by Atomic Layer Deposition and Ag Nanoparticles Decoration |
| title_short | Surface Modification of Biomedical Ti-18Zr-15Nb Alloy by Atomic Layer Deposition and Ag Nanoparticles Decoration |
| title_sort | surface modification of biomedical ti 18zr 15nb alloy by atomic layer deposition and ag nanoparticles decoration |
| topic | superelastic Ti-Zr-Nb alloy surface modification atomic layer deposition Ag nanoparticles synthesis antibacterial properties |
| url | https://www.mdpi.com/2079-4983/14/5/249 |
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