Novel ordered TiO2 nanodot array on 316LSS with enhanced antibacterial properties
| Autor: | Siyu Ni, Xuexia Yang, Yiyang Ma, Chen Jingjing, Shirong Ni, Feng Hong, Yuanyuan Wei |
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| Rok vydání: | 2020 |
| Předmět: |
In situ
Anatase Materials science Mechanical Engineering 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure 01 natural sciences 0104 chemical sciences Nanodot array Mechanics of Materials General Materials Science Nanodot 0210 nano-technology Antibacterial activity Nuclear chemistry |
| Zdroj: | Materials Letters. 266:127503 |
| ISSN: | 0167-577X |
| Popis: | A novel ordered TiO2 nanodot array on 316LSS (NTA/316LSS) was first prepared by sol-gel in situ growth method. The surface microstructure, chemical components, antibacterial activity and cytocompatibility of the samples were characterized. The results showed that anatase TiO2 nanogranules (45 ± 5 nm) were embedded into nanopits (50 ± 5 nm) and arrayed in an ordered manner. The in vitro antibacterial test showed that there was a 96.3 ± 2.4% reduction in E. coli on the NTA/316LSS surface and a 98.1 ± 1.3% reduction in S. aureus compared to that on untreated 316LSS controls. Furthermore, NTA/316LSS showed good cytocompatibility in vitro. Our study revealed that such TiO2 nanodot surface can be designed to improve the use of 316LSS for various implant application. |
| Databáze: | OpenAIRE |
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