Hybrid crystals of calcium carbonate and amino acids

被引：11

作者：

Kai, A ^{[1
]}

Miki, T ^{[1
]}

机构：

[1] Yamaguchi Univ, Div Mat Sci & Engn, Ube, Yamaguchi 7558611, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 2000年 / 39卷 / 10B期

关键词：

calcium carbonate; calcite; vaterite; amino acid; crystal growth; hybridization; ESR; SEM;

D O I：

10.1143/JJAP.39.L1071

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Pie have investigated the effects of amino acids on the crystallization of calcium carbonate (CaCO3), and the reactivity between amino acids and CaCO3. Noncharged-polar and acidic amino acids are highly incorporated into CaCO3 and stabilize cauliflower-like grains composed of vaterite which is thermodynamically unstable in the CaCO3 polymorphs. Amino acids in the hybrid CaCO3 form radicals different from those in crystalline amino acids by X-ray irradiation. The results imply that the hybrid carbonate can provide a reaction field for organic synthesis. We also propose models for the bond between amino acids and CaCO3 using semiempirical approximation procedures.

引用

页码：L1071 / L1073

页数：3

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