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

    Access Status
    Fulltext not available
    Authors
    Neira-Carrillo, A.
    Fernández, M.
    Hevia, G.
    Arias, J.
    Gebauer, Denis
    Cölfen, H.
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Neira-Carrillo, A. and Fernández, M. and Hevia, G. and Arias, J. and Gebauer, D. and Cölfen, H. 2017. Retrosynthesis of CaCO3 via amorphous precursor particles using gastroliths of the Red Claw lobster (Cherax quadricarinatus). Journal of Structural Biology. 199 (1): pp. 46-56.
    Source Title
    Journal ff Structural Biology
    DOI
    10.1016/j.jsb.2017.05.004
    ISSN
    1047-8477
    School
    School of Molecular and Life Sciences (MLS)
    URI
    http://hdl.handle.net/20.500.11937/67184
    Collection
    • Curtin Research Publications
    Abstract

    © 2017 Elsevier Inc. Gastroliths are highly calcified structures formed in the cardiac stomach wall of crustaceans for the temporary storage of amorphous CaCO 3 (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 3 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 3 , and the use of biological gastrolith scaffolds as confined reaction environments determined the kinetics of crystallization, and controlled the morphogenesis of CaCO 3 . The formation of ACC particles was demonstrated and their crystallization was followed by light microscopy, scanning and transmission electron microscopy, and electron diffraction.

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