1.
Spectrochim Acta A Mol Biomol Spectrosc
; 70(3): 532-6, 2008 Aug.
Artigo
em Inglês
| MEDLINE
| ID: mdl-17890144
RESUMO
The investigations aim at revealing the ability of a 1,8-napthalimide-modified poly(amidoamine) dendrimer from second generation to respond to the presence of cuprum cations and protons in the environment. It has been established that a single Cu(2+) cation present in the dendrimer molecule is capable of quenching more than 78% of its fluorescence what is an indication of high sensitiveness. An enhancement of the fluorescence emission of the dendrimer has been observed in acidic medium. It has been established that the processes of coordinating the ions in different sites of the dendrimer are reversible.