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Retrosynthesis of CaCO<sub>3</sub> via amorphous precursor particles using gastroliths of the Red Claw lobster (Cherax quadricarinatus)

Retrosynthesis of CaCO3 via amorphous precursor particles using gastroliths of the Red Claw lobster (Cherax quadricarinatus)

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NEIRA-CARRILLO, Andrónico, María Soledad FERNÁNDEZ, Gonzalo Poblete HEVIA, José Luis ARIAS, Denis GEBAUER, Helmut CÖLFEN, 2017. Retrosynthesis of CaCO3 via amorphous precursor particles using gastroliths of the Red Claw lobster (Cherax quadricarinatus). In: Journal of Structural Biology. 199(1), pp. 46-56. ISSN 1047-8477. eISSN 1095-8657. Available under: doi: 10.1016/j.jsb.2017.05.004

@article{NeiraCarrillo2017-07Retro-39577, title={Retrosynthesis of CaCO3 via amorphous precursor particles using gastroliths of the Red Claw lobster (Cherax quadricarinatus)}, year={2017}, doi={10.1016/j.jsb.2017.05.004}, number={1}, volume={199}, issn={1047-8477}, journal={Journal of Structural Biology}, pages={46--56}, author={Neira-Carrillo, Andrónico and Fernández, María Soledad and Hevia, Gonzalo Poblete and Arias, José Luis and Gebauer, Denis and Cölfen, Helmut} }

Fernández, María Soledad Hevia, Gonzalo Poblete Retrosynthesis of CaCO<sub>3</sub> via amorphous precursor particles using gastroliths of the Red Claw lobster (Cherax quadricarinatus) Gebauer, Denis Hevia, Gonzalo Poblete Cölfen, Helmut Arias, José Luis Gebauer, Denis 2017-07-13T12:24:51Z 2017-07 Fernández, María Soledad 2017-07-13T12:24:51Z Neira-Carrillo, Andrónico Arias, José Luis Gastroliths are highly calcified structures formed in the cardiac stomach wall of crustaceans for the temporary storage of amorphous CaCO<sub>3</sub> (ACC). The gastrolithic ACC is stabilized by the presence of biomolecules, and represents a novel model for research into biomineralization. For the first time, an in vitro biomimetic retrosynthesis of scaffolds of gastrolithic matrices with CaCO<sub>3</sub> is presented. With the help of synthetic polyacrylic (PAA) and phytic (PA) acids, amorphous precursor particles were stabilized in double (DD) and gas (GD) diffusion crystallization assays. The presence of these synthetic molecules as efficient inhibitors of nucleation and growth of CaCO<sub>3</sub>, and the use of biological gastrolith scaffolds as confined reaction environments determined the kinetics of crystallization, and controlled the morphogenesis of CaCO<sub>3</sub>. The formation of ACC particles was demonstrated and their crystallization was followed by light microscopy, scanning and transmission electron microscopy, and electron diffraction. Cölfen, Helmut Neira-Carrillo, Andrónico eng

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