By a News Reporter-Staff News Editor at Health & Medicine Week -- Investigators discuss new findings in Dentistry. According to news reporting from Harbin, People's Republic of China, by NewsRx journalists, research stated, "The objective of this study is to investigate the effect of alloying element indium on the microstructure, mechanical properties, corrosion behavior and in vitro cytotoxicity of Ti-In binary alloys, with the addition of 1, 5, 10 and 15 at.% indium. The phase constitution was studied by optical microscopic observation and X-ray diffraction measurements."
The news correspondents obtained a quote from the research from Harbin Engineering University, "The mechanical properties were characterized by tension and microhardness tests. Potentiodynamic polarization measurements were employed to investigate the corrosion behavior in artificial saliva solutions with and without fluoride. In vitro cytotoxicity was conducted by using L929 and NIH 3T3 mouse fibroblast cell lines, with commercially pure Ti (CP-Ti, ASTM grade 2) as negative control. All of the binary Ti-In alloys investigated in this work were found to have higher strength and microhardness than CP-Ti. Electrochemical results showed that Ti-In alloys exhibited the same order of magnitude of passivation current densities with CP-Ti in artificial saliva solutions. With the presence of NaF, Ti-10In and Ti-15In showed transpassive behavior and lower current densities at high potentials. All experimental Ti-In alloys showed good cytocompatibility, at the same level as CP-Ti."
According to the news reporters, the research concluded: "The addition of indium to titanium was effective on increasing the strength and microhardness, without impairing its good corrosion resistance and cytocompatibility."
For more information on this research see: Development and properties of Ti-In binary alloys as dental biomaterials. Materials Science & Engineering C, Materials for Biological Applications, 2013;33(3):1601-6 (see also Dentistry).
Our news journalists report that additional information may be obtained by contacting Q.Y. Wang, Center for Biomedical Materials and Engineering, Harbin Engineering University, Harbin 150001, People's Taiwan. Additional authors for this research include Y.B. Wang, J.P. Lin and Y.F Zheng.
Keywords for this news article include: Asia, Harbin, Dentistry, People's Republic of China.
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