By a News Reporter-Staff News Editor at Journal of Engineering -- Fresh data on Materials Engineering are presented in a new report. According to news reporting originating in Zhejiang, People's Republic of China, by VerticalNews journalists, research stated, "To further improve the corrosion resistance and biocompatibility of Mg-Nd-Zn-Zr alloy (JDBM), a biodegradable calcium phosphate coating (Ca-P coating) with high bonding strength was developed using a novel chemical deposition method. The main composition of the Ca-P coating was brushite (CaHPO4 center dot 2H(2)O)."
The news reporters obtained a quote from the research from the Chinese Academy of Science, "The bonding strength between the coating and the JDBM substrate was measured to be over 10 MPa, and the thickness of the coating layer was about 10-30 mu m. The in vitro corrosion tests indicated that the Ca-P treatment improved the corrosion resistance of JDBM alloy in Hank's solution. Ca-P treatment significantly reduced the hemolysis rate of JDBM alloy from 48% to 0.68%, and induced no toxicity to MC3T3-E1 cells. The in vivo implantation experiment in New Zealand's rabbit tibia showed that the degradation rate was reduced obviously by the Ca-P treatment and less gas was produced from Ca-P treated JDBM bone plates and screws in early stage of the implantation, and at least 10 weeks degradation time can be prolonged by the present coating techniques. Both Ca-P treated and untreated JDBM Mg alloy induced bone growth."
According to the news reporters, the research concluded: "The primary results indicate that the present Ca-P treatment is a promising technique for the degradable Mg-based biomaterials for orthopedic applications."
For more information on this research see: Enhanced biocorrosion resistance and biocompatibility of degradable Mg-Nd-Zn-Zr alloy by brushite coating. Materials Science & Engineering C-Materials for Biological Applications, 2013;33(8):4833-4841. Materials Science & Engineering C-Materials for Biological Applications can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands.
Our news correspondents report that additional information may be obtained by contacting J.L. Niu, Chinese Academy Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, People's Republic of China. Additional authors for this research include G.Y. Yuan, Y. Liao, L. Mao, J. Zhang, Y.P. Wang, F. Huang, Y. Jiang, Y.H. He and W.J. Ding.
Keywords for this news article include: Asia, Zhejiang, Treatment, Materials Engineering, People's Republic of China
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