| Autor: |
Rao, Qin, Weng, Ling, Zhang, Jinshuang, Chen, Yaqing, Yang, Yujin, Liu, Donghao, Duan, Yurong, Cao, Ying, Chen, Jialong, Li, Xiangyang, Qiu, Hua, Li, Quanli, Zheng, Shunli |
| Předmět: |
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| Zdroj: |
Coatings (2079-6412); May2024, Vol. 14 Issue 5, p571, 26p |
| Abstrakt: |
Titanium and its alloys have been widely employed as dental implant materials. However, polymicrobial infection is still one of the most common reasons for implant failure, which has already become a worldwide problem and poses a threat to human health. In this study, a titanium-based (Ti-based) superhydrophobic coating was effectively created by anodization followed by hydrophobic modification of 1H,1H,2H,2H-perfluorodecyltriethoxysilane (FAS), which shows a high water contact angle (WCA) of 159.9 ± 5.8° and a low water sliding angle (WSA) of 2.7 ± 2.2°. The thickness of the anodized samples is from 500 nm to 4 µm as the anodizing voltage increases. The Ti-based superhydrophobic coating demonstrated the existence of Ti, O, C, F, and Si elements, and the corresponding phase compositions are Ti and anatase. The results showed that the Ti-based superhydrophobic coating has good biocompatibility to co-culture with L929 cells for 1, 3, and 5 days. It was also proven that the as-prepared Ti-based superhydrophobic coating has enhanced antibacterial abilities against Staphylococcus aureus (S. aureus) and Porphyromonas gingivalis (P. gingivalis, P.g) after 4, 12, and 24 h. Moreover, the Ti-based superhydrophobic coating can significantly reduce platelet adhesion and activation. In addition, the Ti-based superhydrophobic coating also exhibits a considerable positive shift in the corrosion potential (Ecorr) and a decline of one order of magnitude in the corrosion current density (Jcorr), showing good anticorrosive properties. It was also found that the capsule around the Ti-based superhydrophobic coating was thinner than that of bare Ti after implantation for 7, 15, and 28 days, indicating its good biosafety. Therefore, the as-prepared Ti-based superhydrophobic coating can be a suitable candidate for Ti-based implants in dental applications. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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