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Antibacterial durability and biocompatibility of antibacterial-passivated 316L stainless steel in simulated physiological environment
Zhao, Jinlong; Zhai, Zhaofeng; Sun, Da; Yang, Chunguang; Zhang, Xinrui; Huang, Nan; Jiang, Xin; Yang, Ke
2019-07-01
Source PublicationMATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
ISSN0928-4931
Volume100Pages:396-410
AbstractStainless steel (SS) has been widely applied as one of the most efficient implant metal materials, although corrosion and infection in body environment are still challenging. Herein, an antibacterial passivation method was employed to enhance the antibacterial performance and corrosion resistance of the medical 316L SS. The result proved that the antibacterial-passivated 316L SS exhibited stable antibacterial activity and effectively inhibited the formation of bacterial biofilm. Electrochemical measurements combined with X-ray photoelectron spectroscopy technique were used to study the corrosion resistance and semiconductor behavior of passivated 316L SS immersed in simulated physiological environment. The results indicated that the 316L SS after anti-bacterial passivation treatment for 1 h, soaking in the medium for 10 days, showed satisfactory corrosion resistance attributing to proper Cu deposition in the passive film. The anodic stripping voltammetry measurement further confirmed that the Cu-bearing passive film could continuously release Cu ions into medium. The zebrafish test demonstrated an excellent in vivo biocompatibility for the 316L SS with antibacterial passivation for 0.5 and 1 h, respectively. In addition, changes of surface roughness, contact angle and chemical composition after antibacterial passivation played an important role in explaining the antibacterial mechanism, which could be clearly divided into contact killing and ionic release killing. Hence, the antibacterial passivation treatment was preliminarily proved as a potential way for enhancing the persistent antibacterial activity and corrosion resistance of 316L SS.
KeywordStainless steel Passive film Antibacterial passivation treatment Cu ion Antibacterial activity
Indexed BySCI
Language英语
WOS IDWOS:000466059700039
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80971
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Zhao, Jinlong,Zhai, Zhaofeng,Sun, Da,et al. Antibacterial durability and biocompatibility of antibacterial-passivated 316L stainless steel in simulated physiological environment[J]. MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS,2019,100:396-410.
APA Zhao, Jinlong.,Zhai, Zhaofeng.,Sun, Da.,Yang, Chunguang.,Zhang, Xinrui.,...&Yang, Ke.(2019).Antibacterial durability and biocompatibility of antibacterial-passivated 316L stainless steel in simulated physiological environment.MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS,100,396-410.
MLA Zhao, Jinlong,et al."Antibacterial durability and biocompatibility of antibacterial-passivated 316L stainless steel in simulated physiological environment".MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS 100(2019):396-410.
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