title: Unusual optical properties of porphyrin fractal J-aggregates.
abstract: 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.
authors.affiliation: Dipartimento di Chimica Inorganica, Chimica Analitica e Chimica Fisica, Università di Messina, Salita Sperone 31, 98166, Vill. S. Agata, Messina, Italy. monsu@chem.unime.it
authors.forename: Luigi Monsù
authors.initials: LM
authors.lastname: Scolaro
authors.forename: Andrea
authors.initials: A
authors.lastname: Romeo
authors.forename: Maria Angela
authors.initials: MA
authors.lastname: Castriciano
authors.forename: Norberto
authors.initials: N
authors.lastname: Micali
mesh_terms: D008027:Light; D046911:Macromolecular Substances / Q000737:chemistry; D011166:Porphyrins / Q000737:chemistry*; D012542:Scattering, Radiation; D012996:Solutions; D013096:Spermine / Q000737:chemistry*; D014867:Water
chemical_list: D046911:Macromolecular Substances; D011166:Porphyrins; D012996:Solutions; D014867:Water; D013096:Spermine; C016136:tetraphenylporphine sulfonate