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Intrinsic Electric Dipole Fields and the Induction of Hierarchical Form Developments in Fluorapatite–Gelatine Nanocomposites: A General Principle for Morphogenesis of Biominerals?

2006; Wiley; Volume: 45; Issue: 12 Linguagem: Inglês

10.1002/anie.200504465

1521-3773

Paul Simon, Dirk Zahn, Hannes Lichte, Rüdiger Kniep,

Paleontology and Stratigraphy of Fossils

The seeder of the pack: The electrical potential distribution (see phase image of an electron hologram) around the basal plane close to the prism faces of a hexagonal fluorapatite–gelatine nanocomposite seed influences the growth of the nanocomposite. The seed consists of elementary dipoles on the nanometer scale, which all have the same orientation along the c axis of the composite seed. Further form development of the seed leads to fractal patterns.