Self-assembly of amorphous calcium carbonate microlens arrays.
Self-assembly of amorphous calcium carbonate microlens arrays.
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DOI：
10.1038/ncomms1720
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发表时间：
2012-03-06
影响因子：
16.6
通讯作者：
中科院分区：
文献类型：
--
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生物材料通常基于简单的成分，并根据环境条件下的自组装原理生长。特别是，生物矿化方法利用了无机材料合成的有效途径。自然系统的复杂性与仿生形成机制的实际利用之间仍然存在很大差距。在这里，我们描述了一种简单的自组装路线，通过在环境条件下使用最少数量的组件和设备，形成 CaCO3 微透镜阵列，有点让人想起海蛇尾的微透镜，具有统一的尺寸和焦距。通过共焦拉曼光谱成像阐明非晶CaCO3微透镜阵列的形成机制是有机表面活性剂介导的两步生长过程。 CaCO3 微透镜阵列易于制造，具有生物相容性，并且以无定形或更稳定的晶体形式发挥作用。这表明先进的光学材料可以通过简单的矿物沉淀来生成。生物材料有效地利用简单成分的自组装来生产复杂的功能结构，例如光学器件。通过控制有机分子，Lee 等人。显示 CaCO3 微透镜阵列的快速两步自组装，让人想起它们的生物对应物。
Biological materials are often based on simple constituents and grown by the principle of self-assembly under ambient conditions. In particular, biomineralization approaches exploit efficient pathways of inorganic material synthesis. There is still a large gap between the complexity of natural systems and the practical utilization of bioinspired formation mechanisms. Here we describe a simple self-assembly route leading to a CaCO3 microlens array, somewhat reminiscent of the brittlestars' microlenses, with uniform size and focal length, by using a minimum number of components and equipment at ambient conditions. The formation mechanism of the amorphous CaCO3 microlens arrays was elucidated by confocal Raman spectroscopic imaging to be a two-step growth process mediated by the organic surfactant. CaCO3 microlens arrays are easy to fabricate, biocompatible and functional in amorphous or more stable crystalline forms. This shows that advanced optical materials can be generated by a simple mineral precipitation. Biological materials efficiently exploit self-assembly of simple constituents to produce complex functional structures such as optical devices. By controlling organic molecules, Lee et al. show fast two-step self-assembly of CaCO3 microlens arrays, reminiscent of their biological counterparts.
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影响因子：
6.9
作者：
Gierlinger N;Luss S;König C;Konnerth J;Eder M;Fratzl P
通讯作者：
Fratzl P
影响因子：
16.6
作者：
Coelfen, Helmut
通讯作者：
Coelfen, Helmut
影响因子：
1.4
作者：
Günther, C;Becker, A;Epple, M
通讯作者：
Epple, M
影响因子：
62.1
作者：
Gower, Laurie B.
通讯作者：
Gower, Laurie B.
影响因子：
2.9
作者：
Cheng, XG;Gower, LB
通讯作者：
Gower, LB