Enhancement of HPO4-OH layered structure in octacalcium phosphate and its morphological evolution by acetic acid

Yuki Sugiura, Kazuo Onuma, Atsushi Yamazaki

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Pages (from-to)1178-1184
    Number of pages7
    JournalNippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
    Volume124
    Issue number11
    DOIs
    Publication statusPublished - 2016 Nov 1

    Fingerprint

    acetic acid
    Acetic acid
    Acetic Acid
    phosphates
    Phosphates
    augmentation
    Apatites
    Apatite
    Succinic Acid
    Citric Acid
    X ray diffraction analysis
    apatites
    citrates
    Nuclear magnetic resonance
    Crystalline materials
    Infrared radiation
    Crystals
    Molecules
    octacalcium phosphate
    aqueous solutions

    Keywords

    • Acetic acid
    • Carboxyl (-COOH)
    • Large crystal
    • Layer structure
    • Octacalcium phosphate (OCP)

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Chemistry(all)
    • Condensed Matter Physics
    • Materials Chemistry

    Cite this

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    title = "Enhancement of HPO4-OH layered structure in octacalcium phosphate and its morphological evolution by acetic acid",
    abstract = "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.",
    keywords = "Acetic acid, Carboxyl (-COOH), Large crystal, Layer structure, Octacalcium phosphate (OCP)",
    author = "Yuki Sugiura and Kazuo Onuma and Atsushi Yamazaki",
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    doi = "10.2109/jcersj2.16169",
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    journal = "Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan",
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    TY - JOUR

    T1 - Enhancement of HPO4-OH layered structure in octacalcium phosphate and its morphological evolution by acetic acid

    AU - Sugiura, Yuki

    AU - Onuma, Kazuo

    AU - Yamazaki, Atsushi

    PY - 2016/11/1

    Y1 - 2016/11/1

    N2 - 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.

    AB - 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.

    KW - Acetic acid

    KW - Carboxyl (-COOH)

    KW - Large crystal

    KW - Layer structure

    KW - Octacalcium phosphate (OCP)

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    DO - 10.2109/jcersj2.16169

    M3 - Article

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    JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan

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