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Effect of phosphorous ion implantation on the mechanical properties and bioactivity of hydroxyapatite

  • Satoshi KobayashiEmail author
  • Takehiro Muramatsu
  • Yoshikazu Teranishi
Biomaterials Synthesis and Characterization
Part of the following topical collections:
  1. Biomaterials Synthesis and Characterization

Abstract

Hydroxyapatite (HA) has ability of bone-like apatite formation, which consists with chemical interaction between the surface of HA and ions included in body fluid. Thus, proper surface modification might enhance the function. In the present study, the effect of phosphorous ion implantation on mechanical properties and bioactivity of HA was investigated. In order to clarify the effect of ion implantation dose, ion dose of 1 × 1012, 1 × 1013 and 1 × 1014 ions/cm2 were selected. Mechanical properties and bioactivity were evaluated in 4-point bending tests and immersion test in simulated body fluid. Bending strength was reduced due to ion implantation. The amount of decreasing strength was similar regardless of ion implantation dose. Bone-like apatite formation was slightly delayed with ion implantation, however, improvement in interfacial strength between bone-like apatite layer and the base HA was indicated. From the results, the possibility of phosphorous ion implantation for enhancement of bioactivity of HA was proved.

Keywords

Apatite Simulated Body Fluid Fluorapatite Human Blood Plasma Implantation Dose 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Satoshi Kobayashi
    • 1
    Email author
  • Takehiro Muramatsu
    • 1
  • Yoshikazu Teranishi
    • 2
  1. 1.Graduate School of Science and EngineeringTokyo Metropolitan UniversityHachiojiJapan
  2. 2.Tokyo Metropolitan Industrial Technology Research InstituteKotoJapan

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