生物矿化
文石
无定形碳酸钙
方解石
材料科学
碳酸钙
无定形固体
碳酸盐
钙
化学工程
矿物学
冶金
结晶学
复合材料
化学
工程类
作者
L. Addadi,Sefi Raz,Steve Weiner
标识
DOI:10.1002/adma.200300381
摘要
Abstract Amorphous calcium carbonate (ACC) in its pure form is highly unstable, yet some organisms produce stable ACC, and cases are known in which ACC functions as a transient precursor of more stable crystalline aragonite or calcite. Studies of biogenic ACC show that there are significant structural differences, including the observation that the stable forms are hydrated whereas the transient forms are not. The many different ways in which ACC can be formed in vitro shed light on the possible mechanisms involved in stabilization, destabilization, and transformation of ACC into crystalline forms of calcium carbonate. We show here that ACC is a fascinating form of calcium carbonate that may well be of much interest to materials science and biomineralization.
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