Hydroxyl in Biological Apatite and Its Crystal Structure

作者：Shen Juan^*; Zuo Yi; Wang Xuejiang; Zhang Li; Li Yan; Li Yubao

来源：Progress in Chemistry, 2009, 21(6): 1356-1363.

• apatite structures
• bones
• hydroxyl group
• carbonate apatite
• substitution

The chemical composition, crystal structure, and short-range order of apatite crystals of bone play an essential role in the biological and structural functions of bone substance. However, the question of the apatite crystals of bone contain hydroxyl ion remains, and the crystal structure of carbonated apatite still remains subject to uncertainties since the exact location of carbonate ions has not yet been determined. This review aims at current developments in biological apatite mineral components and their crystal structures. It introduces near-absence of OH- in bone apatites has been established through extensive study by chemical analyses and spectroscopy techniques, and discusses both the A-site and B-site substitution of carbonate ions in the apatite structures. It is anticipated to provide a deeper understanding about stability, mechanisms of substitution and many surface phenomena of biological apatite.

• 出版日期2009-6
• 单位四川大学