Preparation of Calcium Phosphate Coatings on Titanium Using the Thermal Substrate Method and Their in vitro Evaluation

  • Kuroda Kensuke
    Department of Materials Science Engineering Graduate School of Engineering, Nagoya University
  • Miyashita Yoshihiro
    Department of Materials Science Engineering Graduate School of Engineering, Nagoya University
  • Ichino Ryoichi
    Department of Materials Science Engineering Graduate School of Engineering, Nagoya University
  • Okido Masazumi
    Department of Materials Science Engineering Graduate School of Engineering, Nagoya University
  • Takai Osamu
    Center for Integrated Research in Science and Engineering, Nagoya University

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タイトル別名
  • Preparation of Calcium Phosphate Coatings on Titanium Using the Thermal Substrate Method and Their <I>in vitro</I> Evaluation

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Hydroxyapatite (Ca10(PO4)6(OH)2, HAp) and dicalcium phosphate anhydrous (Ca(H2PO4)2, DCPA) were coated onto titanium substrates using the thermal substrate method in an aqueous solution containing calcium and phosphate ions at 150°C with pH values in the range 4–8. Specimens with the HAp and DCPA layer were immersed in a simulated body fluid (SBF) to examine the dissolution and induced HAp growth behaviour of the coated layers in the SBF . No precipitation occurred on the coated DCPA layer after 7 days immersion in the SBF, and also the DCPA did not dissolve in the SBF . On the other hand, a new precipitate, which was identified as HAp, nucleated after 1 day and grew in a spherical manner on soaking the HAp substrate specimens in the SBF . The influence of small quantities of DCPA in the HAp layer on the coating’s bioactive property in the SBF was negligible as the DCPA was not on the surface of the coated layer.

収録刊行物

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 43 (12), 3015-3019, 2002

    公益社団法人 日本金属学会

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