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- Title
Study on the slow release of silver ion from silver containing antibacterial HA coating material.
- Authors
ZHANG Fu-qiang; ZHENG Xue-bin
- Abstract
PURPOSE: To study the slow release of silver ion from silver containing antibacterial HA coating material. METHODS: Ti coated with HA samples were prepared using vacuum plasma spraying. In group 1, HA coaling materials contained 5%(wt%) silver-zirconium phosphate antimicrobial. In Group 2, pure HA coating materials were used. The samples were immersed into the newborn calf serum anti stored under anaerobic environment at constant temperatures of 37°C, avoiding light. The newborn calf serum was set as control. The Ag+ ion concentration was detected and calculated using atomic absorption spectroscopy at 1,7,14 days. RESULTS: The Ag+ ion contents of group I were 250ng, 425ng and 417ng respectively at the end of 1,7,14 days. The release rate of Ag+ ion became slow with the lapse of time. The release of Ag+ ion became stable during 7-14 days. The Ag+ ion content decreased on the 14th day. The Ag+ ion content of group 2 could be ignored. CONCLUSIONS: The release of Ag+ ion from silver containing HA coating materials is little and becomes stable on the 7th day. There, might he re absorption of Ag+ ion on the 14th day. Supported by Shanghai Leading Academic Discipline Project(Grant No.T0202).
- Subjects
SILVER ions; ANTIBACTERIAL agents; SILVER; ZIRCONIUM; PHOSPHATES; FURNACE atomic absorption spectroscopy
- Publication
Shanghai Journal of Stomatology, 2009, Vol 18, Issue 1, p66
- ISSN
1006-7248
- Publication type
Article