Viscoelastic properties and bioactivity of sol-gel derived gelatin-silicate composites: Effects of the incorporated Ca2+ ions

Abstract

Abstract: Several gelatin-silicate composites, with or without incorporation of Ca2+ ions, were synthesized through set-gel processing starting from gelatin and 3- (glycidoxypropyl) trimethoxysilane. The structure around the Si atoms was similar for all the samples. The measurement of viscoelastic properties indicated that the glass transition temperature and activation energy decreased with the incorporation of Ca2+ ions. The Ca2+ ion-containing composites were bioactive as they spontaneously deposited apatite when soaked in a simulated body fluid of the Kokubo recipe.

Key words:

L.Ren, K.Tsuru, S.Hayakawa, A.Osaka. Viscoelastic properties and bioactivity of sol-gel derived gelatin-silicate composites: Effects of the incorporated Ca2+ ions[J]. J Mater Sci Technol, 2001, 17(03): 367-370.

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Viscoelastic properties and bioactivity of sol-gel derived gelatin-silicate composites: Effects of the incorporated Ca2+ ions

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