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首页> 外文期刊>Crystal growth & design >Sodium Induces Octacalcium Phosphate Formation and Enhances Its Layer Structure by Affecting the Hydrous Layer Phosphate
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Sodium Induces Octacalcium Phosphate Formation and Enhances Its Layer Structure by Affecting the Hydrous Layer Phosphate

机译:钠诱导磷酸叔钯形成,通过影响磷酸含水层来增强其层结构

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摘要

Octacalcium phosphate (OCP), a layered calcium phosphate compound, has attracted attention in areas such as biomaterial and pharmacy, as well as the environmental industry, because of its excellent biocompatibility and low environmental load. However, little is known about the effect of alkaline metal ions on OCP formation, even though the Na ion is always present as a pH neutralizing or ionic strength-adjusting agent. Therefore, in this study, we investigated the role of the Na ion in OCP formation from dicalcium phosphate dihydrate (DCPD) through hydrolysis by using solutions with various Na concentrations. When the Na concentration in the treatment solutions increased, the formation of hydroxyapatite (HAp) as a residual material was inhibited and the purity of OCP was increased. Furthermore, at higher concentrations, OCP crystals evolved layer structures because Na affects to the P5 PO4 in the OCP lattice and enhances the HPO4-OH layer structure, which significantly contributes to OCP crystallinity and crystal structure. Thermal stability measurements indicate that the thermal stability of OCP decreases with increasing Na content. This study suggests that Na incorporation into OCP crystals can induce OCP formation but simultaneously decrease the OCP stability.
机译:磷酸叔钯(OCP)是一种层状磷酸钙化合物,在生物材料和药房以及环境工业中引起了注意力,因为其具有优异的生物相容性和低环境载荷。然而,关于碱金属离子对OCP形成的影响几乎熟知,即使Na离子总是作为pH中和或离子强度调节剂。因此,在本研究中,我们通过使用具有各种NA浓度的溶液来研究Na离子在OCP形成中的作用,通过水解通过水解。当治疗溶液中的Na浓度增加时,抑制羟基磷灰石(HAP)的形成被抑制,并且OCP的纯度增加。此外,在较高的浓度下,OCP晶体进化层结构,因为NA影响OCP晶格中的P5 PO4并增强HPO4-OH层结构,其显着贡献OCP结晶度和晶体结构。热稳定性测量表明,随着NA含量的增加,OCP的热稳定性降低。该研究表明,NA掺入OCP晶体可以诱导OCP形成,但同时降低OCP稳定性。

著录项

  • 来源
    《Crystal growth & design》 |2018年第10期|共7页
  • 作者

    Sugiura Yuki; Makita Yoji;

  • 作者单位

    Natl Inst Adv Ind Sci &

    Technol Hlth Res Inst 2217-14 Hayashi Cho Takamatsu Kagawa 7610395 Japan;

    Natl Inst Adv Ind Sci &

    Technol Hlth Res Inst 2217-14 Hayashi Cho Takamatsu Kagawa 7610395 Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 晶体学;
  • 关键词

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