@article{Seto2012-03-06Struc-22782,
  year={2012},
  doi={10.1073/pnas.1109243109},
  title={Structure-property relationships of a biological mesocrystal in the adult sea urchin spine},
  number={10},
  volume={109},
  issn={0027-8424},
  journal={Proceedings of the National Academy of Sciences},
  pages={3699--3704},
  author={Seto, Jong and Ma, Yurong and Davis, Sean A. and Meldrum, Fiona and Gourrier, Aurelien and Kim, Yi-Yeoun and Schilde, Uwe and Sztucki, Michael and Burghammer, Manfred and Maltsev, Sergey and Jäger, Christian and Cölfen, Helmut}
}

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    <dcterms:title>Structure-property relationships of a biological mesocrystal in the adult sea urchin spine</dcterms:title>
    <dc:contributor>Jäger, Christian</dc:contributor>
    <dc:contributor>Gourrier, Aurelien</dc:contributor>
    <dc:creator>Cölfen, Helmut</dc:creator>
    <dc:contributor>Meldrum, Fiona</dc:contributor>
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    <dc:language>eng</dc:language>
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    <dc:contributor>Kim, Yi-Yeoun</dc:contributor>
    <dc:contributor>Maltsev, Sergey</dc:contributor>
    <dc:contributor>Sztucki, Michael</dc:contributor>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-06-03T07:13:45Z</dcterms:available>
    <dc:creator>Davis, Sean A.</dc:creator>
    <dc:creator>Seto, Jong</dc:creator>
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    <dcterms:bibliographicCitation>Proceedings of the National Academy of Sciences of the United States of America : PNAS ; 109 (2012), 10. - S. 3699-3704</dcterms:bibliographicCitation>
    <dc:contributor>Schilde, Uwe</dc:contributor>
    <dc:contributor>Burghammer, Manfred</dc:contributor>
    <dc:creator>Kim, Yi-Yeoun</dc:creator>
    <dc:contributor>Seto, Jong</dc:contributor>
    <dc:contributor>Cölfen, Helmut</dc:contributor>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-06-03T07:13:45Z</dc:date>
    <dcterms:issued>2012-03-06</dcterms:issued>
    <dc:creator>Schilde, Uwe</dc:creator>
    <dc:contributor>Davis, Sean A.</dc:contributor>
    <dc:creator>Sztucki, Michael</dc:creator>
    <dc:creator>Maltsev, Sergey</dc:creator>
    <dc:creator>Jäger, Christian</dc:creator>
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    <dc:creator>Meldrum, Fiona</dc:creator>
    <dc:creator>Burghammer, Manfred</dc:creator>
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    <dc:contributor>Ma, Yurong</dc:contributor>
    <dc:creator>Gourrier, Aurelien</dc:creator>
    <dcterms:abstract xml:lang="eng">Structuring over many length scales is a design strategy widely used in Nature to create materials with unique functional properties. We here present a comprehensive analysis of an adult sea urchin spine, and in revealing a complex, hierarchical structure, show how Nature fabricates a material which diffracts as a single crystal of calcite and yet fractures as a glassy material. Each spine comprises a highly oriented array of Mg-calcite nanocrystals in which amorphous regions and macromolecules are embedded. It is postulated that this mesocrystalline structure forms via the crystallization of a dense array of amorphous calcium carbonate (ACC) precursor particles. A residual surface layer of ACC and/or macromolecules remains around the nanoparticle units which creates the mesocrystal structure and contributes to the conchoidal fracture behavior. Nature's demonstration of how crystallization of an amorphous precursor phase can create a crystalline material with remarkable properties therefore provides inspiration for a novel approach to the design and synthesis of synthetic composite materials.</dcterms:abstract>
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    <dc:creator>Ma, Yurong</dc:creator>
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