Antibacterial effect of sand blasted, large-grit, acid-etched treated Ti-Ag alloys
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- 作者：Min-Kyung Kang ; Seung-Kyun Moon ; Jae-Sung Kwon ; Kwang-Mahn Kim ; Kyoung-Nam Kim
- 关键词：CFU ; scolony-forming units ; cp-Ti ; commercially pure titanium ; EDS ; energy dispersive spectroscopy ; EPMA ; electron probe micro analysis ; FE-SEM ; field-emission scanning electron microscopy ; ICP-MS ; ICP-Mass Spectrometer ; MC3T3-E1 cells ; mouse osteoblastic
- 刊名：Materials Research Bulletin
- 出版年：2012
- 出版时间：October, 2012
- 年：2012
- 卷：47
- 期：10
- 页码：2952-2955
- 全文大小：1288 K
文摘
The purpose of this study was to investigate the antibacterial effect of sand-blasted, large-grit, acid-etched (SLA) treated Ti-Ag alloys. Three different alloys with varying Ag contents (Ti-1Ag, Ti-2Ag, and Ti-4Ag) were SLA treated by grit blasting with 250 ¦Ìm sized alumina and acid-etching in 7 % HCl + 27 % H2SO4 solution at 110 ¡ãC for 5 min. The microporous structures were formed following SLA treatment and Ag particles were identified on Ti-2Ag and Ti-4Ag alloys. And high concentration of Ag released steadily during 7 days from the Ti-4Ag. Higher level of antibacterial effect was evident on SLA treated Ti-Ag alloys compare to commercially pure Ti (p < 0.05) in the antibacterial test using Streptococcus aureus whereas no significant difference in cell viability among the SLA treated Ti-Ag allows and commercially pure Ti was identified. Hence, it was concluded that SLA treated Ti-Ag had an antibacterial effect while being biocompatible.