Cu Ions Dissolution from Cu-bearing Antibacterial Stainless Steel  

作　　者：Li Nan and Ke Yang Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China 

出　　处：《Journal of Materials Science & Technology》2010年第10期941-944,共4页材料科学技术（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.50671101)

摘　　要：This work addressed the antibacterial mechanism of copper ions dissolved from the Cu-bearing antibacterial stainless steel in the bacterial solution by electrochemical measurements and X-ray photoelectron spectroscopy （XPS）.Experimental results showed that the antibacterial rate reached over 99.9% only when the reaction time between the antibacterial stainless steel and Escherichia coli （E.coli） lasted for 9 h,and the antibacterial stainless steel was more susceptible to the corrosion in the bacterial solution,which was attributed to more copper ions dissolved from surface of the steel contacted with the bacteria,a crucial reason leading to death of the bacteria.This work addressed the antibacterial mechanism of copper ions dissolved from the Cu-bearing antibacterial stainless steel in the bacterial solution by electrochemical measurements and X-ray photoelectron spectroscopy （XPS）.Experimental results showed that the antibacterial rate reached over 99.9% only when the reaction time between the antibacterial stainless steel and Escherichia coli （E.coli） lasted for 9 h,and the antibacterial stainless steel was more susceptible to the corrosion in the bacterial solution,which was attributed to more copper ions dissolved from surface of the steel contacted with the bacteria,a crucial reason leading to death of the bacteria.

关 键 词：Antibacterial stainless steel Copper ions CORROSION Escherichia coli （E.coli） 

分 类 号：TG142.71[一般工业技术—材料科学与工程]