ABSTRACT

Porous hollow hydroxyapatite (HA) microspheres were synthesized by biomineralization using Ca(NO₃)₂ · 4H₂O and (NH₄)₃PO₄ · 3H₂O as starting materials and tea saponin as a template. With increasing amounts of tea saponin, the HA morphology exhibited a variation from irregular floccules to rod-like, which formed a spherical prototype, and then grew into porous hollow microspheres. With further increase in the tea saponin concentration, the rods became sheet-like and then formed cross-flakes. A possible mechanism for this morphology change was also discussed.

中文翻译：

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以茶皂素为模板生物矿化合成羟基磷灰石空心微球

摘要

以Ca(NO ₃ ) ₂  · 4H ₂ O和(NH ₄ ) ₃ PO ₄  · 3H ₂ O为起始原料，以茶皂素为模板，通过生物矿化法合成了多孔空心羟基磷灰石(HA)微球。随着茶皂素用量的增加，HA形态表现出从不规则絮状物到棒状变化，形成球形原型，然后长成多孔空心微球。随着茶皂素浓度的进一步增加，棒状结构变成片状，然后形成交叉薄片。还讨论了这种形态变化的可能机制。