Calcium and phosphate adsorption as initial steps of apatite nucleation on sol-gel-prepared titania surface

被引：13

作者：

Coreño, J ^{[1
]}

Martínez, A ^{[1
]}

Coreño, O ^{[1
]}

Bolarín, A ^{[1
]}

Sánchez, F ^{[1
]}

机构：

[1] Univ Autonoma Estado Hidalgo, Ctr Invest Mat & Met, Pachuca, Hgo, Mexico

来源：

JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A | 2003年 / 64A卷 / 01期

关键词：

apatite; sol-gel titania; calcium adsorption; phosphate adsorption; zeta potential;

D O I：

10.1002/jbm.a.10395

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Titania powders have been prepared by the sol-gel route from Ti (IV) ethoxide under acidic conditions. Adsorption experiments of calcium and phosphate ions on gel-derived titania suspensions were performed to suggest a likely initial step of apatite growth on its surface. Experiments were performed as a function of time and pH at 37degreesC with and without NaCl present in the suspensions. Also, zeta (zeta) potential experiments were performed to determine the kind of calcium adsorption. Results suggest that, apparently, calcium and phosphate adsorption can act as two different initial steps for apatite growth. (C) 2002 Wiley Periodicals, Inc.

引用

页码：131 / 137

页数：7

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