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Bioinspired Hierarchical Crystals

Published online by Cambridge University Press:  31 January 2011

Hiroaki Imai
Affiliation:
hiroaki@applc.keio.ac.jp.
Yuya Oaki
Affiliation:
hiroaki@applc.keio.ac.jp.
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Abstract

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.

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Type
Research Article
Copyright
Copyright © Materials Research Society 2010

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