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