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Synthesis and Evaluation of Calcium-Deficient Hydroxyapatite with SiO<sub>2</sub>
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Materials Sciences and Applications·Volume 02 (2011)·Pages 1194–1198·Published 27 September 2011·DOI10.4236/msa.2011.29161
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Abstract
Effect of SiO<sub>2</sub> addition on the microstructures of calcium-deficient hydroxyapatite prepared by the heat-treatments was examined. Obtained hydroxyapatites substituted with Si ion were characterized by XRD, FT-IR and XAFS measurements. XANES results of Si K-edge and P K-edge in these modified hydroxyapatites indicated the shift of peaks of P K-edge with the SiO<sub>2</sub> contents, although no change of Si local structures. In this study, the effect of Si ion on micro- and local structure of hydroxyapatite with SiO<sub>2</sub> addition was mainly clarified.
KeywordsHydroxyapatiteSiO<sub>2</sub>XAFSLocal Structure
- E. O. Martz, V. K. Goel, M. H. Pope and J. B. Park, “Materials and Design of Spinal Implants,” Journal of Biomedical Mate-rials Research, Vol. 38, No. 3, 1997, pp. 267-288. doi:10.1002/(SICI)1097-4636(199723)38:3 3.0.CO;2-8
- F. B. Bagambisa, U. Joos and W. Schilli, “Mechanisms and Structure of the Bond between Bone and Hydroxya- patite Ceramics,” Journal of Biomedical Materials Research, Vol. 27, No. 8, 1993, pp. 1047-1055. doi:10.1002/jbm.820270810
- M. Okazaki, “Specific Physicochemical Properties of Apatite and Their Application to Biomaterials,” Phos- phorous Research Bulletin, Vol. 20, 2006, pp. 25-32.
- A. Almirall, G. Larrecq, J. A. Delgado, S. Martinez, J. A. Planell and M. P. Ginebra, “Fabrication of Low Temperature Ma-croporous Hydroxyapatite Scaffolds by Foaming and Hydrolysis of an α-TCP Paste,” Biomaterials, Vol. 25, No. 17, 2004, pp. 3671-3680.
- M. Tamai, T. Isshiki, K. Nishio, M. Nakamura, A. Nakahira and H. Endoh, “A Metastable Phase in Thermal Decomposition of Ca-Deficient Hydroxyapatite,” Journal of Materials Science: Materials in Medicine, Vol. 14, No. 7, 2003, pp. 617-622. doi:10.1023/A:1024075008165
- E. S. Ahn, N. J. Gleason, A. Nakahira and J. Y. Ying, “Nano-structure Processing of Hydroxyapatite-Based Bio- ceramics,” Nano Letters, Vol. 1, No. 3, 2001, pp. 149-153. doi:10.1021/nl0055299
- A. Nakahira, S. Aoki, K. Sakamoto and S. Yamaguchi, “Syn-thesis and Evaluation of Various Layered Octacalcium Phosphate by Wet-Chemical Processing,” Journal of Materials Science: Materials in Medicine, Vol. 12, No. 9, 2001, pp. 793-800.
- S. Aoki, S. Yamaguchi, A. Nakahira and K. Suganuma, “A New Approach to an Artificial Joint Based on Bio- Cartilage/Porous α-Tricalcium Phosphate System,” Jour- nal of the European Ceramic Society, Vol. 23, No. 15, 2003, pp. 2939-2946.
- H.-J. Kleebe, A. Nakahira and G. Pezzotti, “Microstructure and Microcrack Formation at Grain Boundaries in Na3PO4-Doped Hydroxyapatite,” Journal of the Ceramic Society of Japan, Vol. 109, No. 1267, 2001, pp. 181-185. doi:10.2109/jcersj.109.1267_181
- A. Nakahira, C. Karatani and S. Nishida, “Evaluation of Cad-mium Removal in Solution Using Various Hydroxya- patite and Cattle Bone,” Phosphorus Research Bulletin, Vol. 17, 2004, pp. 148-152.
- A. Nakahira, T. Okajima, T. Honma, S. Yoshioka and I. Tanaka, “Arsenic Removal by Hydroxyapatite-Based Ceramics,” Chemistry Letters, Vol. 35, No. 8, 2006, pp. 856- 857. doi:10.1246/cl.2006.856