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Loading antibiotics on the surface of nano-networked sodium hydroxide treated titanium

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Abstract

Bone-implant bonding can be achieved by stimulating the apatite formation with the alkaline chemical process applied to the surface of Ti and its alloys. Although the bioactivity can improve the osseointegration feature of the implant, the shortening of the implant life due to the risk of infection during implantation is a problem frequently encountered in biomedical applications and causes the removal of the implant. Therefore, in this study, NaOH pretreatment was performed on Ti plates to create a nano-networked surface that can stimulate apatite formation. It aimed to reduce the risk of infection by loading antibiotics on these surfaces. After alkali treatment, a nano-network structure with 80–150 nm pore sizes with alpha titanium and sodium hydrogen titanate phases was formed. It has been observed that this surface provides apatite formation when kept in simulated body fluid for 3 days. The appearance of an inhibition zone after drug loading proved its antibacterial property. At the same time, the cell viability of the drug-loaded alkaline treated surface was 85%. It was concluded that antibiotic-loaded nano-networked NaOH surfaces could be recommended for dental and orthopedic implants in terms of both cellular behavior and infection risk.

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Acknowledgements

This study was supported Scientific Research Projects Commission of Sakarya University (Project number: 2019-5-19-134). We would like to thank biologist Mustafa Çelik for the antibacterial study. This research did not receive any specific grant from funding agencies in public, commercial, or not-for-profit sectors.

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EY: Investigation, Writing-original draft. ST: Investigation, Writing-original draft.

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Correspondence to Eren Yılmaz.

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Yılmaz, E., Türk, S. Loading antibiotics on the surface of nano-networked sodium hydroxide treated titanium. Chem. Pap. 76, 2459–2467 (2022). https://doi.org/10.1007/s11696-021-02045-4

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  • DOI: https://doi.org/10.1007/s11696-021-02045-4

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