Synthesis of PDMS-based porous materials for biomedical applications

T. Yabuta, E. P. Bescher, J. D. Mackenzie, K. Tsuru, S. Hayakawa, A. Osaka

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Polydimethylsiloxane (PDMS) and tetraethoxysilane (TEOS)-based porous organically modified silicates (ORMOSILs) for biomedical applications were synthesized through a sol-gel process, using sucrose particles as templates. These materials were characterized by 29Si CP-MAS NMR spectroscopy, thin film X-ray diffraction, and scanning electron microscopy. Their bioactivity was evaluated using a simulated body fluid (SBF) of Kokubo recipe. These materials had a bimodal porous structure with pores of 300-500 μm and 10-50 μm in diameter. NMR showed that the silanol groups of the PDMS chain cross-linked to silica derived from the hydrolysis and condensation of TEOS. The samples containing Ca(II) exhibited apatite deposition on the pore walls within 3 days in SBF.

Original languageEnglish
Pages (from-to)1219-1222
Number of pages4
JournalJournal of Sol-Gel Science and Technology
Issue number1-3
Publication statusPublished - Jan 1 2003

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites

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    Yabuta, T., Bescher, E. P., Mackenzie, J. D., Tsuru, K., Hayakawa, S., & Osaka, A. (2003). Synthesis of PDMS-based porous materials for biomedical applications. Journal of Sol-Gel Science and Technology, 26(1-3), 1219-1222.