Bioinspired Hierarchical Crystals
Bioinspired Hierarchical Crystals
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DOI：
10.1557/mrs2010.634
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发表时间：
2010-02
期刊：
影响因子：
5
通讯作者：
H. Imai;Y. Oaki
中科院分区：
文献类型：
--
作者：
H. Imai;Y. Oaki
在各种生物矿物的复杂结构中，通常可以观察到从纳米到毫米的多级长度层次。本文鉴定了碳酸盐生物矿物中有机分子伴生的无机晶体组成的超结构，并将其归类为介晶，它们是由结晶学取向的晶体组成的。针对层状结构介晶的制备，提出了两种利用有机试剂在水溶液体系中自组织生长的策略。不溶性凝胶基质和可溶性可吸附有机分子分别诱导微米级和纳米级单元的有序结构。因此，通过将基质和可溶物种结合起来，成功地获得了生物启发的分级晶体。
In the sophisticated architectures of various biominerals, a multilevel hierarchy of lengths from nanometers to millimeters is commonly observed. In this article, superstructures composed of inorganic crystals associated with organic molecules from carbonate-based biominerals were identified and categorized as mesocrystals, which are composed of crystallographically oriented crystals. For the production of hierarchically structured mesocrystals, two strategies using self-organized growth with organic agents in aqueous solution systems were proposed. Arranged structures of micrometric and nanometric units were induced with an insoluble gel matrix and soluble adsorbable organic molecules, respectively. Consequently, bioinspired hierarchical crystals were successfully achieved by combining the matrix and soluble species.