"Hidden" Hierarchy of Microfibrils within 3D-Periodic Fluorapatite-Gelatine Nanocomposites: Development of Complexity and Form in a Biomimetic System

Taking shape: The 3D arrangement of a biomimetic fluorapatite–gelatine composite consists of elementary dipoles on the nanometer scale. The dipole field developed during growth of the composite causes formation and inclusion of gelatine microfibrils, which line up in the direction of the developing...

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Published in:	Angewandte Chemie International Edition Vol. 47; no. 8; pp. 1405 - 1409
Main Authors:	Kniep, Rüdiger, Simon, Paul
Format:	Journal Article
Language:	English
Published:	Weinheim WILEY-VCH Verlag 08-02-2008 WILEY‐VCH Verlag
Subjects:	Apatites - chemistry Biomimetic Materials - chemical synthesis Biomimetic Materials - chemistry biomineralization crystal growth fluorapatite Gelatin - chemistry Gelatin - ultrastructure Microscopy, Electron, Scanning Microscopy, Electron, Transmission Nanocomposites - chemistry Nanocomposites - ultrastructure nanostructures organic-inorganic composites
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Summary:	Taking shape: The 3D arrangement of a biomimetic fluorapatite–gelatine composite consists of elementary dipoles on the nanometer scale. The dipole field developed during growth of the composite causes formation and inclusion of gelatine microfibrils, which line up in the direction of the developing electric field. This microfibril pattern is the intrinsic code for development from an elongated hexagonal prism into a dumbbell morphology (see picture).
Bibliography:	istex:D04695A58399BB67ACDDE27F25D759DF8193D9E4 Deutsche Forschungsgemeinschaft - No. 150/14-1 ArticleID:ANIE200702532 We gratefully acknowledge the Fonds der Chemischen Industrie for generous support and the Deutsche Forschungsgemeinschaft for supporting parts of this work (KN 150/14-1). We also thank Dr. Horst Borrmann for X-ray investigations, Dr. Stefano Leoni for computational support, Francesco Tatti and Dr. Petr Formanek for FIB preparation, Dr. Steffen Wirth for fruitful discussions, and Prof. Dr. Hannes Lichte for the possibility to perform TEM measurements at the Triebenberg Laboratory. Fonds der Chemischen Industrie ark:/67375/WNG-0TM7V7N6-C We gratefully acknowledge the Fonds der Chemischen Industrie for generous support and the Deutsche Forschungsgemeinschaft for supporting parts of this work (KN 150/14‐1). We also thank Dr. Horst Borrmann for X‐ray investigations, Dr. Stefano Leoni for computational support, Francesco Tatti and Dr. Petr Formanek for FIB preparation, Dr. Steffen Wirth for fruitful discussions, and Prof. Dr. Hannes Lichte for the possibility to perform TEM measurements at the Triebenberg Laboratory. ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1433-7851 1521-3773
DOI:	10.1002/anie.200702532