In vitro apatite formation on polymer substrates irradiated by the simultaneous use of oxygen cluster and monomer ion beams

Masakazu Kawashita, Rei Araki, Gikan H. Takaoka

研究成果: Conference contribution

抄録

Polyethylene (PE) and silicone rubber substrates were irradiated at an acceleration voltage of 7 kV and a dose of 1×1015 ions/cm 2 by the simultaneous use of oxygen cluster and monomer ion beams, and then soaked in CaCl2 solution. Apatite-forming ability of the substrates was examined using a metastable calcium phosphate solution that had 1.5 times the ion concentrations of a normal simulated body fluid (1.5SBF). After the irradiation, the hydrophilic functional groups such as COOH and silicon oxide clusters (SiOx) were formed at the PE and silicone rubber surfaces, respectively. The hydrophilicity of the substrates was remarkably improved by the irradiation. The irradiated PE and silicone rubber substrates formed apatite in 1.5SBF, whereas unirradiated ones did not form it. These results suggest that the functional groups such as COOH groups and Si-OH groups induced apatite nucleation in 1.5SBF.

本文言語English
ホスト出版物のタイトルIon-Beam-Based Nanofabrication
ページ177-182
ページ数6
出版ステータスPublished - 2007 12月 1
イベントIon-Beam-Based Nanofabrication - San Francisco, CA, United States
継続期間: 2007 4月 102007 4月 12

出版物シリーズ

名前Materials Research Society Symposium Proceedings
1020
ISSN(印刷版)0272-9172

Other

OtherIon-Beam-Based Nanofabrication
国/地域United States
CitySan Francisco, CA
Period07/4/1007/4/12

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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