Properties of Metal Oxide doped Hydroxyapatite Powder Prepared by Sol-Gel Method
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Four kinds of hydroxyapatite powders (HAp) containing 1 mass% metal oxide (Al2O3, ZrO2, TiO2, SiO2), together with dopant-free HAp, were prepared from analytical grades calcium hydroxide and phosphoric acid by a wet chemical synthesis. Metal butoxides were used as the metal sources. Obtained powders were characterized by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) specific surface area analysis, and zeta potential measurement. XRD patterns showed that each of the metal-doped HAps was a single phase of HAp. The specific surface area of the Zr- and Al-doped HAps was greater than that of dopant-free HAp, while that of the Ti- and Si-doped HAps was smaller. Bovine serum albumin (BSA) adsorption on those HAps was also measured and the difference in the BSA adsorption was discussed in correlation to the zeta potential of HAps that was modified by doping the metal oxides.
- 公益社団法人 日本セラミックス協会の論文
公益社団法人 日本セラミックス協会 | 論文
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