Answers are grounded in this paper and cite their sources.
A simple mix and shake procedure in aqueous solution from water-soluble tetrakis(4-sulfonatophenyl)porphyrin and spermine leads to fractal non-covalent supramolecular systems which exhibit unusual large enhancement of resonant light scattering, behaving as metal particles.
No takes yet. Share an insight, caveat, or question.
Scolaro et al. (2005) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: