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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationIon-Beam-Based Nanofabrication
Pages177-182
Number of pages6
Publication statusPublished - 2007 Dec 1
EventIon-Beam-Based Nanofabrication - San Francisco, CA, United States
Duration: 2007 Apr 102007 Apr 12

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1020
ISSN (Print)0272-9172

Other

OtherIon-Beam-Based Nanofabrication
CountryUnited States
CitySan Francisco, CA
Period07/4/1007/4/12

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'In vitro apatite formation on polymer substrates irradiated by the simultaneous use of oxygen cluster and monomer ion beams'. Together they form a unique fingerprint.

  • Cite this

    Kawashita, M., Araki, R., & Takaoka, G. H. (2007). In vitro apatite formation on polymer substrates irradiated by the simultaneous use of oxygen cluster and monomer ion beams. In Ion-Beam-Based Nanofabrication (pp. 177-182). (Materials Research Society Symposium Proceedings; Vol. 1020).