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Templated and self-limiting calcite formation directed by coccolith organic macromolecules

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Gal,  Assaf
Damien Faivre, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Faivre,  Damien
Damien Faivre, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Citation

Gal, A., Wirth, R., Barkay, Z., Eliaz, N., Scheffel, A., & Faivre, D. (2017). Templated and self-limiting calcite formation directed by coccolith organic macromolecules. Chemical Communications, 53(55), 7740-7743. doi:10.1039/C7CC03639F.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002D-7914-1
Abstract
The formation of intricately shaped crystalline minerals by organisms is orchestrated by specialized biomacromolecules. The macromolecules associated with coccoliths, nanometer-sized calcite crystal arrays produced by marine microalgae, can form a distinct calcium-rich phase via macromolecular recognition. Here, we show that this calcium-rich phase can be mineralized into a thin film of single-crystalline calcite by the balanced addition of carbonate ions. Such crystallization process provides a strategy to direct crystalline products via local interactions between soluble macromolecules and compatible templates.