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CONTROL OF SURFACE MODIFIED LAYER ON METALLIC BIOMATERIALS BY AN ADVANCED ELID GRINDING SYSTEM (EG-X)

MASAYOSHI MIZUTANI

Department of Mechanical Engineering, Keio University, Kanagawa, 223-8522, Japan

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JUN KOMOTORI

Department of Mechanical Engineering, Keio University, Kanagawa, 223-8522, Japan

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KAZUTOSHI KATAHIRA

RIKEN (The Institute of Physical and Chemical Research), Materials Fabrication Laboratory, Saitama, 351-0198, Japan

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HITOSHI OHMORI

RIKEN (The Institute of Physical and Chemical Research), Materials Fabrication Laboratory, Saitama, 351-0198, Japan

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https://doi.org/10.1142/S0217979206040064Cited by:2 (Source: Crossref)

Abstract

The biocompatibility of titanium implants with different surface properties is investigated. We prepared three types of specimens, one ground by the newly developed ELID grinding system, another ground by conventional ELID grinding, and the other polished by SiO₂ powder. These surfaces were characterized and, the number of cell and cytotoxicity in in-vitro were measured. Energy Dispersive X-ray Spectroscopy (EDS), X-ray Photoelectron Spectroscopy (XPS) and Transmission Electron Microscope (TEM) revealed that the modified ELID system can create a significantly thick oxide layer and a diffused oxide layer, and also can control the thickness of a modified layer. The results of cell number and cytotoxicity showed that the sample ground by the modified system had the highest biocompatibility. This may have been caused by improvement of chemical properties due to a surface modified layer. The above results suggest that this newly developed ELID grinding system can create the desirable surface properties. Consequently, this system appears to offer significant future promise for use in biomaterials and other engineering components.

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References

D. F. Williams, Journal of Medical Engineering Technology 1, 266 (1977). Web of Science, Google Scholar
R. Adellet al., International Journal of Oral Maxillofac Implants 5, 347 (1990). Google Scholar
Branemark P.-I., Zarb G. A., Albrektsson T., eds. (Chicago Quintessence, 1985) . Google Scholar
Winter, G. D., and Leray, J. L., John, Wiley & Sons Ltd, 1980 . Google Scholar
A. Wisbey, P. J. Gregson and L. M. Peter, Biomaterials 12, 470 (1991), DOI: 10.1016/0142-9612(91)90144-Y. Web of Science, Google Scholar
M. Browne and P. J. Gregson, Biomaterials 15, 894 (1994), DOI: 10.1016/0142-9612(94)90113-9. Web of Science, Google Scholar
M. Semlitsch, H. Weber and R. Steger, Titanium '95, Science and TechnologyI, eds. P. A. Blenkinsop and W. J. Evans (1996) p. 1742. Google Scholar
H. Donget al., Titanium '95, Science and TechnologyIII, eds. P. A. Blenkinsop and W. J. Evans (1996) p. 1999. Google Scholar
B. D. Ratner, Anneals of Biomedical Engineering 11, 313 (1983), DOI: 10.1007/BF02363290. Web of Science, Google Scholar
B. Kasemo and J. Lausmaa, CRC Crit. Rev. Biocomp. 2, 335 (1986). Web of Science, Google Scholar
H. Ohmoriet al., Annals of the CIRP 53(1), 455 (2004). Web of Science, Google Scholar
K. Katahiraet al., Int. Journal of Machine Tools & Manufacture 45, 891 (2005), DOI: 10.1016/j.ijmachtools.2004.10.017. Web of Science, Google Scholar
M. Mizutaniet al., International Journal of Modern Physics B 17(1&2), 259 (2003), DOI: 10.1142/S0217979203019058. Google Scholar