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Zinc-Silver Doped Mesoporous Hydroxyapatite Synthesized via Ultrasonic in Combination with Sol-Gel Method for Increased Antibacterial Activity by Piaw Phatai; Narid Prachumrak; Sirilak Kamonwannasit; Agarat Kamcharoen; Wuttichai Roschat; Sunti Phewphong; Cybelle Morales Futalan; Pongtanawat Khemthong; Teera Butburee; Saran Youngjan; Jeremiah C. Millare; Orrasa Prasitnok is a Environmental Science article available to read on EtoBox.

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Bone materials are mainly composed of an inorganic constituent called hydroxyapatite (HA). In the current study, mesoporous Zn2+/Ag+ doped hydroxyapatite nanoparticles (Zn-Ag doped HA) with high antibacterial activity were synthesized through ultrasonic coupled sol-gel techniques under calcination temperatures of 600 °C for 4 h and 1100 °C for 1 h. The variance in the molar ratio of Zn2+/Ag+ in Ca9.0Zn1.0−xAgx(PO4)6(OH)2 (x = 0.0, 0.25 to 1.0) and its effects on the chemical and physical properties of the powdered samples were investigated. The results show that the hexagonal framework of HA incorporated both the Zn2+ and Ag+ ions and the rhombohedral structure of β-TCP. The main functional groups of HA and Zn-Ag doped HA samples were hydroxyl and phosphate. All samples have mesoporous characteristics with a Type IV isotherm. The agar well diffusion process was used to examine antibacterial activity against E. coli, P. aeruginosa, S. aureus, B. cereus and B. subtilis. Effective antibacterial activity was displayed by Zn-Ag doped HA. Excellent antibacterial performance was shown by Ca9.0Zn0.75Ag0.25(PO4)6(OH)2 against all tested bacterial strains, except P. aeruginosa. This material

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Author

Piaw Phatai; Narid Prachumrak; Sirilak Kamonwannasit; Agarat Kamcharoen; Wuttichai Roschat; Sunti Phewphong; Cybelle Morales Futalan; Pongtanawat Khemthong; Teera Butburee; Saran Youngjan; Jeremiah C. Millare; Orrasa Prasitnok

Publisher

MDPI AG

Published

2022

Language

EN

Field

Environmental Science (Social Sciences)