From bacteria to mollusks: the principles underlying the biomineralization of iron oxide materials
- PMID: 25851816
- DOI: 10.1002/anie.201408900
From bacteria to mollusks: the principles underlying the biomineralization of iron oxide materials
Abstract
Various organisms possess a genetic program that enables the controlled formation of a mineral, a process termed biomineralization. The variety of biological material architectures is mind-boggling and arises from the ability of organisms to exert control over crystal nucleation and growth. The structure and composition of biominerals equip biomineralizing organisms with properties and functionalities that abiotically formed materials, made of the same mineral, usually lack. Therefore, elucidating the mechanisms underlying biomineralization and morphogenesis is of interdisciplinary interest to extract design principles that will enable the biomimetic formation of functional materials with similar capabilities. Herein, we summarize what is known about iron oxides formed by bacteria and mollusks for their magnetic and mechanical properties. We describe the chemical and biological machineries that are involved in controlling mineral precipitation and organization and show how these organisms are able to form highly complex structures under physiological conditions.
Keywords: biomineralization; goethite; iron; magnetite; magnetotactic bacteria.
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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