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首页> 外文期刊>Journal of Crystal Growth >In situ time-resolved X-ray diffraction study of octacalcium phosphate transformations under physiological conditions
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In situ time-resolved X-ray diffraction study of octacalcium phosphate transformations under physiological conditions

机译：生理条件下磷酸八钙转变的原位时间分辨X射线衍射研究

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摘要

The present study is focused on the in vitro investigation of octacalcium phosphate (OCP) transformations when mixed with physiological solution (aqueous isotonic 0.9% NaCl) by the energy dispersive X-ray diffraction technique. This technique allowed in situ monitoring of the processes taking place in this system in real time. It was demonstrated that when OCP is mixed with physiological solution, it undergoes two simultaneous processes: (1) amorphous-into-crystalline OCP transformation (37%), and OCP average grain size growth from 22 up to 35 nm; (2) partial phase transformation of OCP (33%) into hydroxyapatite (HA), and HA average grain growth up to 5 nm. Both processes take place simultaneously with the same characteristic time (2.90 ± 0.25) h.
机译：本研究的重点是通过能量色散X射线衍射技术对与生理溶液（等渗0.9％NaCl水溶液）混合的磷酸八钙（OCP）转化的体外研究。这种技术允许实时监控该系统中发生的过程。结果表明，OCP与生理溶液混合时，会同时经历两个过程：（1）从非晶态转变为结晶型OCP（37％），OCP平均晶粒度从22增长到35 nm。 （2）OCP（33％）部分相转变为羟基磷灰石（HA），且HA平均晶粒长至5 nm。这两个过程以相同的特征时间（2.90±0.25）h同时进行。

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  • 来源
    《Journal of Crystal Growth》 |2010年第14期|P.2113-2116|共4页
  • 作者

    J.V. Rau; rnV.S. Komlev; rnA. Generosi; rnM. Fosca; rnV. Rossi Albertini; rnS.M. Barinov;

  • 作者单位

    Istituto di Struttura delta Materia, Consiglio Nazionale delle Ricerche, Via del Fosso del Cavaliere, 100 - 00133 Rome, Italy;

    rnA.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Science, Leninsky prospect 49, 119991 Moscow, Russia;

    rnIstituto di Struttura delta Materia, Consiglio Nazionale delle Ricerche, Via del Fosso del Cavaliere, 100 - 00133 Rome, Italy;

    rnIstituto di Struttura delta Materia, Consiglio Nazionale delle Ricerche, Via del Fosso del Cavaliere, 100 - 00133 Rome, Italy;

    rnIstituto di Struttura delta Materia, Consiglio Nazionale delle Ricerche, Via del Fosso del Cavaliere, 100 - 00133 Rome, Italy;

    rnA.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Science, Leninsky prospect 49, 119991 Moscow, Russia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    A1. Biocrystallization; A1. X-ray diffraction; B1. Biological substances; B1. Calcium compounds; B1. Octacalcium phosphate;

    机译：A1。生物结晶;A1。 X射线衍射;B1。生物物质;B1。钙化合物;B1。磷酸八钙;

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