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- Title
Visible-Light-Enhanced Antibacterial Activity of Silver and Copper Co-Doped Titania Formed on Titanium via Chemical and Thermal Treatments.
- Authors
Suzuki, Kanae; Iwatsu, Misato; Mokudai, Takayuki; Furuya, Maiko; Yokota, Kotone; Kanetaka, Hiroyasu; Shimabukuro, Masaya; Yokoi, Taishi; Kawashita, Masakazu
- Abstract
Dental implants made of titanium (Ti) are used in dentistry, but peri-implantitis is a serious associated problem. Antibacterial and osteoconductive Ti dental implants may decrease the risk of peri-implantitis. In this study, titania (TiO2) co-doped with silver (Ag) at 2.5 at.% and copper (Cu) at 4.9 at.% was formed on Ti substrates via chemical and thermal treatments. The Ag and Cu co-doped TiO2 formed apatite in a simulated body fluid, which suggests osteoconductivity. It also showed antibacterial activity against Escherichia coli, which was enhanced by visible-light irradiation. This enhancement might be caused by the synergistic effect of the release of Ag and Cu and the generation of •OH from the sample. Dental implants with such a Ag and Cu co-doped TiO2 formed on their surface may reduce the risk of peri-implantitis.
- Subjects
DOPING agents (Chemistry); ANTIBACTERIAL agents; TITANIUM; COPPER; DENTAL implants; APATITE
- Publication
Molecules, 2023, Vol 28, Issue 2, p650
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules28020650