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Fractal aspects of elastin supramolecular organization.

The supramolecular organisation of elastin and its soluble derivative alpha-elastin were studied by scanning and transmission electron microscopy. It was found a variety of different structures including filaments, fibrils, fibres, networks and dendritic, leaf-like forms. Self-similar patterns, extending for at least three orders of magnitude, were revealed, strongly suggesting the presence of fractal objects. The fractal dimension D was determined by using the box counting method.