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Anna S. Schenk, Igor Zlotnikov, Boaz Pokroy, Notburga Gierlinger, Admir Masic, Paul Zaslansky, Andrew N. Fitch, Oskar Paris, Till H. Metzger, Helmut Cölfen, Peter Fratzl and Barbara Aichmayer Hierarchical Calcite Crystals with Occlusions of a Simple Polyelectrolyte Mimic Complex Biomineral Structures Advanced Functional Materials 22

Version of Record online: 2 JUL 2012 | DOI: 10.1002/adfm.201201158

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Poly(sodium 4-styrenesulfonate) induces hierarchical structuring from the micrometer down to the nanometer length-scale in calcite, similar to biominerals. The polyelectrolyte molecules are occluded within the mineral crystals, thus generating rough, (104)- and (001)-oriented organic/inorganic interfaces, which prevent brittle cleavage. The hardness and stiffness of the hierarchically structured hybrid crystals depend on the polymer content, which varies in different parts of a single crystal.

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