Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1660473 | Surface and Coatings Technology | 2009 | 6 Pages |
Abstract
Implant-related infection is one of the common clinical complications that cause high rates of mortality and morbidity in orthopedic surgery. Endowing implant antibacterial properties is a useful method to reduce such infection. In this paper, vacuum plasma sprayed titanium coatings were treated by NaOH solution firstly, and then antimicrobial silver was introduced into the coatings by immersing in 0.02Â mM (denoted as CA1), 0.06Â mM (denoted as CA2) and 0.1Â mM (denoted as CA3) Ag+ containing calcification solution. Antibacterial property of the treated titanium coatings was examined by employing three types of bacteria stains, Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus. X-Ray diffraction and scanning electron microscopy were used to observe the phase composition and surface morphology of the modified titanium coatings. Results showed that all of the three kinds of coatings exhibited more than 90.00% antibacterial ratio except CA1 to Staphylococcus aureus which is 63.30%. The release of silver in physiological environment was monitored and it was found that the excellent antibacterial property of the treated coatings was attributed to the release of silver.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Yikai Chen, Xuebin Zheng, Youtao Xie, Heng Ji, Chuanxian Ding,