Calcium Carbonate Crystallization in the Presence of Casein
Calcium Carbonate Crystallization in the Presence of Casein
复制标题
酪蛋白存在下的碳酸钙结晶
DOI：
10.1021/cg3005213
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发表时间：
2012-10-01
影响因子：
3.8
通讯作者：
Guo, Rong
中科院分区：
文献类型：
--
作者：
Liu, Yan;Cui, YongJian;Guo, Rong
磷蛋白在介导碳酸钙结晶过程中具有特殊而显著的影响。在本研究中，以一种典型的磷蛋白-酪蛋白为原料，合成了一种具有自组织哑铃状超结构的碳酸钙晶体。一个复杂的自组装过程中的酪蛋白的存在下形成的分级超结构已被提出。考察了钙离子浓度、反应时间、反应温度等因素对反应的影响。结果表明，酪蛋白的磷酸基团在指导超结构的生长和自组装中起着重要作用。我们的研究可能有助于理解磷蛋白在生物矿化过程中的特殊作用。我们也相信，我们的研究将提供新的见解，控制矿物的结构和形态下容易实现的反应条件下，磷蛋白的存在。
Phosphoproteins have specific and prominent influences on mediating the crystallization of calcium carbonate. In this research, a new kind of calcium carbonate crystal with a novel self-organized spiky dumbbell-like superstructure was synthesized in the presence of one typical phosphoprotein-casein. A complex self-assembly process for the formation of the hierarchical superstructures in the presence of casein has been proposed. The effects of the concentration of calcium ion, the reaction time, and temperature are investigated. The results indicate that phosphate groups of casein play important roles in directing growth and self-assembly of hierarchical superstructures. Our studies may contribute to the understanding of the specific role of phosphoprotein in the biomineralization process. We also believe that our studies will provide new insights into controlling the structure and morphology of minerals under easily attainable reaction conditions in the presence of phosphoprotein.