We have studied the aggregation of the porphyrin trans-bis(N-methylpyridinium-4-yl)-diphenylporphyrine (t−H2Pagg) in … dynamic light scattering indicate that the aggregation produces large monodisperse clusters having a fractal structure driven … by diffusion limited aggregation (DLA). UV-visible absorption measurements have been applied to study the corresponding …

interactions between side-groups with the same charge. We have extensively studied the aggregation of synthetic porphyrins, which … modulated on changing the medium properties. Here we report on a kinetic study of such aggregation behavior on varying the salt …