書誌事項
- タイトル別名
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- <sup>31</sup>P MAS-NMR Studies of Phosphate Salts Formation on Calcium-Containing Oxide Glasses in a Simulated Body Fluid
- 31P MAS-NMR Studies of Phosphate Salts
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31P MAS-NMR spectra were measured for pulverized binary and ternary glasses containing Ca2+ ions after soaking in a simulated body fluid (Kokubo solution; pH=7.25) for 1d, and the chemical state of adsorbed phosphate ions were examined. The 31P chemical shift indicated that orthophosphate ions, HxPO4-(3-x) (0<x<3), were adsorbed on all the glasses but 60CaO⋅40Al2O3; pyrophosphate ions, HzP2O7-(4-z) (0<z<4), were detected on the aluminate glass, indicating that orthophosphate ions in the Kokubo solution were dimerized on the glass surface. For the glasses such as 60CaO⋅40Al2O3, 40CaO⋅60B2O3, 40CaO⋅30B2O3⋅30Al2O3 and 40CaO⋅30B2O3⋅30SiO2, those phosphate ions gave broad 31P MAS-NMR speetra, hence have a broad distribution by coordinating to the various surface sites of the glasses. On the other hand, sharp 31P MAS-NMR spectra as for a cortical bone (rabbit) were obtained for the rest of the glasses, 50CaO⋅50SiO2 and 40CaO⋅30B2O3⋅30TiO2, on which apatite formed in shorter soaking period in the Kokubo solution. It was thus concluded that presence of orthophosphate ions on the glass surfaces favored the deposition of apatite.
収録刊行物
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- Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌)
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Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌) 104 (1215), 1000-1003, 1996
公益社団法人 日本セラミックス協会
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詳細情報 詳細情報について
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- CRID
- 1390001205278920576
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- NII論文ID
- 110002291389
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- NII書誌ID
- AN10040326
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- ISSN
- 18821022
- 09145400
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- NDL書誌ID
- 4068227
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- データソース種別
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- JaLC
- NDL
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