离子在两种饱和羟基磷灰石溶液之间的扩散:牙齿表面下脱矿的可能机制。

IF 1.5 4区 工程技术
Laurence C Chow
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引用次数: 1

摘要

扩散控制的溶解和沉淀反应发生在许多生物系统和一些非搅拌的体外系统中。以往的研究表明,溶解/沉淀反应中离子扩散速率的差异会对反应的速率和过程产生显著影响。我们在这里报告了一项研究的结果,表明离子在两种溶液之间的相互扩散,两种溶液相对于羟基磷灰石都是饱和的,但具有不同的成分,导致一种溶液变得不饱和而另一种溶液变得过饱和。提出了一个可以解释龋蚀过程中致密矿物层形成的模型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Diffusion of Ions Between Two Solutions Saturated With Respect to Hydroxyapatite: A Possible Mechanism for Subsurface Demineralization of Teeth.

Diffusion of Ions Between Two Solutions Saturated With Respect to Hydroxyapatite: A Possible Mechanism for Subsurface Demineralization of Teeth.

Diffusion of Ions Between Two Solutions Saturated With Respect to Hydroxyapatite: A Possible Mechanism for Subsurface Demineralization of Teeth.

Diffusion of Ions Between Two Solutions Saturated With Respect to Hydroxyapatite: A Possible Mechanism for Subsurface Demineralization of Teeth.

Diffusion-controlled dissolution and precipitation reactions occur in many biological systems and some non-stirred in vitro systems. Previous studies have shown that differences in the diffusion rates of the ions involved in a dissolution/precipitation reaction can produce significant effects on the rate and course of the reaction. We report here results of a study that show inter-diffusion of ions between two solutions, both saturated with respect to hydroxyapatite but with dissimilar compositions, resulted in one solution becoming undersaturated and the other supersaturated. A model is proposed that may explain the formation of a mineral-dense layer in the caries process.

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来源期刊
自引率
33.30%
发文量
10
期刊介绍: The Journal of Research of the National Institute of Standards and Technology is the flagship publication of the National Institute of Standards and Technology. It has been published under various titles and forms since 1904, with its roots as Scientific Papers issued as the Bulletin of the Bureau of Standards. In 1928, the Scientific Papers were combined with Technologic Papers, which reported results of investigations of material and methods of testing. This new publication was titled the Bureau of Standards Journal of Research. The Journal of Research of NIST reports NIST research and development in metrology and related fields of physical science, engineering, applied mathematics, statistics, biotechnology, information technology.
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