Apatite converted from 3-D ordered macroporous sol-gel bioactive glass (3DOM-BG) particles

被引：8

作者：

Zhang, K

Francis, LF ^{[1
]}

Yan, HW

Stein, A

机构：

[1] Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USA

[2] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2005年 / 88卷 / 03期

关键词：

D O I：

10.1111/j.1551-2916.2005.00143.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

3-D ordered macroporous sol-gel bioactive glass particles (3DOM-BG, pore size: 345 nm; molar composition: 75 SiO2-21 CaO-4 P2O5) were converted into nano-crystalline calcium-deficient carbonate apatite after soaking at 37 degrees C in simulated body fluid. The as-formed, flake-like apatite transformed into a coral-like, highly crystalline hydroxyapatite with a minor tricalcium phosphate phase after heating for I h at a temperature of 700 degrees C. Fourier transform infrared results show the loss of carbonate and isolation of hydroxyl during heating. The heat treatment improved the apatite's resistance to dissolution in a buffer solution (pH = 5).

引用

页码：587 / 592

页数：6

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