Silver and fluoride doped hydroxyapatites: Investigation by microstructure, mechanical and antibacterial properties

Date

2013-12-01

Author

Turkoz, Mustafa
Atilla, Aykan Onur
Evis, Zafer

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Hydroxyapatite co-doped with Ag+ and F- ions was synthesized by the precipitation method and sintered at 1100 degrees C for 1 h. Samples were characterized by density, X-ray diffraction, Fourier transform infrared spectroscopy, Raman spectroscopy, and scanning electron microscopy to investigate their microstructure, phase formation and bonding characteristics. Moreover, samples were also characterized by microhardness and antibacterial tests. Small amount of dopings resulted in high densities and fine grain microstructures. In most of the samples, hydroxyapatite was the main phase with a minor amount of beta-TCP. Presence of fluoride and small amount of TCP was verified with all characteristic FTIR bands of hydroxyapatite for most of the samples. Compared to the pure hydroxyapatites, much higher microhardness values were measured in samples co-doped with Ag+ and F- ions. Antibacterial activity of the materials related to Escherichia coli was also observed in hydroxyapatite samples with high amount of Ag+ ions. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

Subject Keywords

Process Chemistry and Technology, Materials Chemistry, Electronic, Optical and Magnetic Materials, Surfaces, Coatings and Films, Ceramics and Composites

URI

https://hdl.handle.net/11511/48618

Journal

CERAMICS INTERNATIONAL

DOI

https://doi.org/10.1016/j.ceramint.2013.04.088

Collections

Department of Engineering Sciences, Article

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Citation Formats

M. Turkoz, A. O. Atilla, and Z. Evis, “Silver and fluoride doped hydroxyapatites: Investigation by microstructure, mechanical and antibacterial properties,” CERAMICS INTERNATIONAL, pp. 8925–8931, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48618.