期刊
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
卷 26, 期 3, 页码 -出版社
SPRINGER
DOI: 10.1007/s10856-015-5459-6
关键词
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资金
- NSF China [81071262, 31271024]
- Foundation for Key Program of Ministry of Education, China [313014]
- Heilongjiang Universities' Science and Technology innovation team program [2012TD010]
- Nature Science Foundation of Heilongjiang Province for Distinguished Young Scholars [JC201205]
- Jiamusi university postgraduate technology innovation project [LZR_2014008]
- Northeastern University(985 program), China [N141008001]
Ti-10Cu sintered alloy has shown strong antibacterial properties against S. aureus and E. coli and good cell biocompatibility, which displays potential application in dental application. The corrosion behaviors of the alloy in five different simulated biological solutions have been investigated by electrochemical technology, surface observation, roughness measurement and immersion test. Five different simulated solutions were chosen to simulate oral condition, oral condition with F- ion, human body fluids with different pH values and blood system. It has been shown that Ti-10Cu alloy exhibits high corrosion rate in Saliva pH3.5 solution and Saliva pH 6.8 + 0.2F solution but low corrosion rate in Hank's, Tyrode's and Saliva pH 6.8 solutions. The corrosion rate of Ti-10Cu alloy was in a order of Hank's, Tyrode's, Saliva pH 6.8, Saliva-pH 3.5 and Saliva pH 6.8 + 0.2F from slow to fast. All results indicated acid and F- containing conditions prompt the corrosion reaction of Ti-Cu alloy. It was suggested that the Cu ion release in the biological environments, especially in the acid and F- containing condition would lead to high antibacterial properties without any cell toxicity, displaying wide potential application of this alloy.
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