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has been cited by the following article:

• TITLE: Synthesis and Evaluation of Calcium-Deficient Hydroxyapatite with SiO2

  AUTHORS: Atsushi Nakahira, Kentaro Nakata, Chiya Numako, Hidenobu Murata, Katsuyuki Matsunaga

  KEYWORDS: Hydroxyapatite, SiO2, XAFS, Local Structure

  JOURNAL NAME: Materials Sciences and Applications, Vol.2 No.9, September 20, 2011

  ABSTRACT: Effect of SiO2 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 SiO2 contents, although no change of Si local structures. In this study, the effect of Si ion on micro- and local structure of hydroxyapatite with SiO2 addition was mainly clarified.