SOLUTION EFFECTS ON THE SURFACE-REACTIONS OF A BIOACTIVE GLASS

被引：245

作者：

FILGUEIRAS, MR ^{[1
]}

LATORRE, G ^{[1
]}

HENCH, LL ^{[1
]}

机构：

[1] UNIV FLORIDA,COLL ENGN,1 PROGRESS BLVD,BOX 14,ALACHUA,FL 32615

来源：

JOURNAL OF BIOMEDICAL MATERIALS RESEARCH | 1993年 / 27卷 / 04期

关键词：

D O I：

10.1002/jbm.820270405

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The in vitro surface reactions of a 45S5 bioactive glass in three simulated body fluids (SBF) are analyzed using Fourier transform infrared (FTIR) spectroscopy. Five reaction stages are observed. Calcium and phosphate ions in SBF accelerate to a small extent the repolymerization of silica (Stage 3) and formation of an amorphous calcium-phosphate (a-CP) layer (Stage 4) on the glass surface. The a-CaP layer is crystallized to form hydroxy-carbonate apatite (HCAp) (Stage 5) more rapidly in the Ca- and P-containing SBF solutions (in 90 min rather than 120 min). However, Mg ions in SBF slow down formation of the a-CaP layer and greatly retard crystallization of HCAp on the glass surface.

引用

页码：445 / 453

页数：9

共 15 条

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