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    Calcium Carbonate Polyamorphism and Its Role in Biomineralization: How Many Amorphous Calcium Carbonates Are There?

    Access Status
    Fulltext not available
    Authors
    Cartwright, J.
    Checa, A.
    Gale, Julian
    Gebauer, D.
    Ignacio Sainz-Diaz, C.
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Citation
    Cartwright, Julyan H.E. and Checa, Antonio G. and Gale, Julian D. and Gebauer, Denis and Sainz-Diaz, C. Ignacio. 2012. Calcium Carbonate Polyamorphism and Its Role in Biomineralization: How Many Amorphous Calcium Carbonates Are There? Angewandte Chemie International Edition. 51 (48): pp. 11960-11970.
    Source Title
    Angewandte Chemie-International Edition
    DOI
    10.1002/anie.201203125
    ISSN
    14337851
    URI
    http://hdl.handle.net/20.500.11937/25857
    Collection
    • Curtin Research Publications
    Abstract

    Although the polymorphism of calcium carbonate is well known, and its polymorphs—calcite, aragonite, and vaterite—have been highly studied in the context of biomineralization, polyamorphism is a much more recently discovered phenomenon, and the existence of more than one amorphous phase of calcium carbonate in biominerals has only very recently been understood. Here we summarize what is known about polyamorphism in calcium carbonate as well as what is understood about the role of amorphous calcium carbonate in biominerals. We show that consideration of the amorphous forms of calcium carbonate within the physical notion of polyamorphism leads to new insights when it comes to the mechanisms by which polymorphic structures can evolve in the first place. This not only has implications for our understanding of biomineralization, but also of the means by which crystallization may be controlled in medical, pharmaceutical, and industrial contexts.

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