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Impact of Sintering Temperature on the Phase Composition and Antibacterial Properties of Silver-doped Hydroxyapatite by Dubnika, Arita (author);Loca, Dagnija (author);Reinis, Aigars (author);Kodols, Maris (author);Berzina-Cimdina, Liga (author) is a Chemistry article available to read on EtoBox.

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In the present study, the impact of sintering temperature on the phase composition and antibacterial properties of silver-doped hydroxyapatite (HAp/Ag) samples was investigated. HAp/Ag containing 0.2 and 1.2 % silver was prepared using a modified wet chemical precipitation method. The surface morphology and inner structure of the sintered samples were discussed. X-ray powder diffraction (XRD) and scanning electron microscopy (SEM) studies showed that, after the sintering process, HAp/Ag contained a silver oxide phase, which was not observed in raw materials. Phase composition changes at different sintering temperatures were studied, and it was found that silver oxide undergoes phase changes during the sintering process. In vitro antibacterial properties approved the excellent antimicrobial activity of HAp/Ag against the bacterial strains __Staphylococcus epidermidis__ and __Pseudomonas aeruginosa__. The HAp/Ag sample with 1.2 % silver content, sintered at 1150 °C, showed the highest antibacterial activity.

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Author

Dubnika, Arita (author);Loca, Dagnija (author);Reinis, Aigars (author);Kodols, Maris (author);Berzina-Cimdina, Liga (author)

Publisher

International Union of Pure and Applied Chemistry; Walter de Gruyter GmbH; Wiley (ISSN 0033-4545)

Published

2013

Language

EN

Field

Chemistry (Physical Sciences)