Control of surface modified layer on metallic biomaterials by an advanced ELID grinding system (EG-X)

Masayoshi Mizutani, Jun Komotori, Kazutoshi Katahira, Hitoshi Ohmori

Research output: Contribution to journalArticle

4 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)3605-3610
Number of pages6
JournalInternational Journal of Modern Physics B
Volume20
Issue number25-27
DOIs
Publication statusPublished - 2006 Oct 30

Keywords

  • Anodic oxidation
  • ELID grinding
  • Metallic biomaterials
  • Surface modification

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics

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