1. Enhanced osteogenic activity and bacteriostatic effect of TiO2 coatings via hydrogen ion implantation.
- Author
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Zheng, Li, Qian, Shi, and Liu, Xuanyong
- Subjects
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ION implantation , *PLASMA immersion ion implantation , *HYDROGEN ions , *SURFACE coatings , *HYDROGEN plasmas - Abstract
• The reduced TiO 2 coatings were fabricated by MAO and further H-PIII. • After H-PIII, the coatings had more Ti-OH bonds and O V. • The formation of Ti-OH bonds promoted cell osteogenic differentiation. • The O V endowed the coatings with enhanced bacteriostatic effects. Titanium implants fabricated by micro-arc oxidation (MAO) are widely used in orthopedic therapies. However, TiO 2 is a bio-inert material and lacks antibacterial properties. Therefore, it is crucial to enhance the biological activity and antibacterial properties of MAO implants. In this work, TiO 2 coatings were fabricated by MAO and further hydrogen plasma immersion ion implantation (H-PIII). The formation of Ti-OH bonds promoted cell proliferation and osteogenic differentiation. The presence of Ti3+ and oxygen vacancies narrowed the forbidden band of TiO 2 and showed bacteriostatic effect to E. coli and S. aureus. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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