Viscoelastic Properties and Bioactivity of Sol-Gel Derived Gelatin-Silicate Composites: Effects of the Incorporated Ca^(2+) Ions  

作　　者：L.Ren, K.Tsuru, S.Hayakawa and A.Osaka Biomaterial Laboratory, Faculty of Engineering, Okayama University, Tsushima 3-1-1, Okayama-shi 700-8530, Japan E-mail: [e-mail] 

出　　处：《Journal of Materials Science & Technology》2001年第3期367-370,共4页材料科学技术（英文版）

摘　　要：Several gelatin-silicate composites, with or without incorporation of Ca2+ ions, were synthesized through sol-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.Several gelatin-silicate composites, with or without incorporation of Ca2+ ions, were synthesized through sol-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.

关 键 词：Si IONS Viscoelastic Properties and Bioactivity of Sol-Gel Derived Gelatin-Silicate Composites Effects of the Incorporated Ca 

分 类 号：TB39[一般工业技术—材料科学与工程]