Antibacterial effect of sand blasted, large-grit, acid-etched treated Ti-Ag alloys

Min Kyung Kang, Seung Kyun Moon, Jae Sung Kwon, Kwang Mahn Kim, Kyoung Nam Kim

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50 Citations (Scopus)


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 μm sized alumina and acid-etching in 7% HCl + 27% H 2SO 4 solution at 110 °C 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.

Original languageEnglish
Pages (from-to)2952-2955
Number of pages4
JournalMaterials Research Bulletin
Issue number10
Publication statusPublished - 2012 Oct

Bibliographical note

Funding Information:
This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Education, Science, and Technology ( R13-2003-013-03001-0 ).

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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