MODEL FOR THE DISSOLUTION OF CALCIUM HYDROXYAPATITE POWDER

被引：36

作者：

MAFE, S

MANZANARES, JA

REISS, H

THOMANN, JM

GRAMAIN, P

机构：

[1] UNIV CALIF LOS ANGELES,DEPT CHEM,LOS ANGELES,CA 90024

[2] CNRS,INST CHARLES SADRON,F-67083 STRASBOURG,FRANCE

[3] UNIV VALENCIA,DEPT THERMODYNAM,E-46100 BURJASSOT,SPAIN

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1992年 / 96卷 / 02期

关键词：

D O I：

10.1021/j100181a062

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A physical model for the dissolution of calcium hydroxyapatite (HAP) is proposed. The experimentally observed self-inhibiting dissolution mechanism is modeled by using the scaled particle theory of hard disks. A Langmuir adsorption isotherm is proposed for the formation of a calcium-rich layer on the surface that constitutes a charged interface inhibiting dissolution. The model provides a quantitative explanation of a number of experimental facts. HAP is the main constituent of bone and dental inorganic tissues, and the proposed theory may constitute a new approach for studying related important phenomena like carious processes.

引用

页码：861 / 866

页数：6

共 18 条

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