Enhancement of HPO<sub>4</sub>&ndash;OH layered structure in octacalcium phosphate and its morphological evolution by acetic acid

DOI Web Site 被引用文献5件 参考文献43件
  • SUGIURA Yuki
    Department of Resources and Environmental Engineering, School of Creative Science and Engineering, Waseda University National Institute of Advanced Industrial Science and Technology Department of Biomaterials, Faculty of Dental Science, Kyushu University
  • ONUMA Kazuo
    National Institute of Advanced Industrial Science and Technology
  • YAMAZAKI Atsushi
    Department of Resources and Environmental Engineering, School of Creative Science and Engineering, Waseda University

書誌事項

タイトル別名
  • Enhancement of HPO<sub>4</sub>–OH layered structure in octacalcium phosphate and its morphological evolution by acetic acid
  • Enhancement of HPO4–OH layered structure in octacalcium phosphate and its morphological evolution by acetic acid

抄録

We show that acetic acid enhances the HPO4–OH layer structure of octacalcium phosphate (OCP) and hypothesize that the presence of acetic acid is essential for obtaining large-sized highly crystalline OCP with relatively high-temperature (∼65°C) aqueous-solution synthesis methods. The OCP crystal consists of three types of layer structures (apatite-like, transition, and HPO4–OH). X-ray diffraction (XRD) analysis indicates that increasing acetic acid concentration leads to the development of their greater structure. Infrared (IR) and nuclear magnetic resonance (NMR) spectroscopic measurements indicated development of the highly HPO4–OH layer-structure. The enhanced layer structure development caused by acetic acid is in contrast to the generally observed decrease in HPO4–OH layer structure in the presence of –COOH-containing molecules such as citrate and succinate.

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