文献类型：期刊文献

英文题名：Functionalization and bioactivity in vitro of mesoporous bioactive glasses

作者：Sun, Jin[1];Li, Yongsheng[1];Li, Liang[1];Zhao, Wenru[1];Li, Lei[2];Gao, Jianhua[2];Ruan, Meiling[2];Shi, Jianlin[1,2]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

年份：2008

卷号：354

期号：32

起止页码：3799

外文期刊名：JOURNAL OF NON-CRYSTALLINE SOLIDS

收录：;EI(收录号：20082911380397);WOS:【SCI-EXPANDED(收录号:WOS:000258353000003)】；

语种：英文

外文关键词：bioglass; biomaterials; catalysis; functionalization; nanoparticles; silica; silicates; zeolites

摘要：Amino and carboxylic groups functionalized mesoporous bioactive glasses (denoted as N-MBGs and C-MBGs, respectively) were successfully synthesized through a post-grafting process and characterized by XRD, N-2 sorption, TEM, FT-IR and TG techniques. Their in vitro bioactivity and degradation behavior were investigated in simulated body fluid and examined by various techniques. The results demonstrate that the bioactivity of all the samples and the morphology of carbonated hydroxyapatite were affected remarkably by the introduction of functional groups. Spherical carbonated hydroxyapatite particles were observed grown on the N-MBGs surfaces after soaking in simulated body fluid for 8 h, which is different from the rod-like carbonated hydroxyapatite grown on conventional mesoporous bioactive glasses. While for C-MBGs, the nucleation and growth rate of carbonated hydroxyapatite was decreased at increased contents of carboxylic groups. (c) 2008 Elsevier B.V. All rights reserved.