Bonelike apatite formation on ethylene-vinyl alcohol copolymer modified with a silane coupling agent and titania solution

Oyane Ayako, Kawashita Masakazu, Kokubo Tadashi, Minoda Masahiko, Miyamoto Takeaki, Nakamura Takashi

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

The surface of an ethylene-vinyl alcohol copolymer (EVOH) was modified with Ti-OH groups by a silane coupling treatment followed by treatment with a titania solution. The arrangement of the Ti-OH groups formed on EVOH was changed from amorphous into anatase structure by a subsequent HCl solution treatment. Bonelike nanoapatite was successfully formed on the surface-modified EVOH even in a form of fibers as well as plates within 2 d at 36.5°C in a simulated body fluid (SBF) with ion concentrations approximately equal to those of human blood plasma. The resultant nanoapatite-polymer fiber composite was similar to that of natural bone in its structure where apatite nanocrystals are deposited on fine organic fibers constituting a composite. Therefore, if the present surface modification can be applied to a three-dimensional fabric with a structure similar to the collagen fibers of natural bone, a composite with an analogous structure to that of natural bone would be obtained. The resultant composite is expected to exhibit mechanical properties analogous to those of natural bone, as well as bone-bonding ability, and hence be truly useful as a new bone substitute.

Original languageEnglish
Pages (from-to)248-254
Number of pages7
JournalJournal of the Ceramic Society of Japan
Volume110
Issue number1280
Publication statusPublished - 2002 Apr

Keywords

  • Anatase
  • Apatite
  • Biomimetic method
  • Ethylene-vinyl alcohol copolymer
  • Simulated body fluid
  • Ti-OH groups

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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  • Cite this

    Ayako, O., Masakazu, K., Tadashi, K., Masahiko, M., Takeaki, M., & Takashi, N. (2002). Bonelike apatite formation on ethylene-vinyl alcohol copolymer modified with a silane coupling agent and titania solution. Journal of the Ceramic Society of Japan, 110(1280), 248-254.