In:
Canadian Journal of Chemistry, Canadian Science Publishing, Vol. 69, No. 11 ( 1991-11-01), p. 1791-1795
Abstract:
Relative values have been obtained for the cross section of fluorescence of tetrakis(4-N-methylpyridyl)porphine and the zinc(II) complex with DNA. Time-resolved fluorescence spectra have been used to assign fluorescence of porphyrins which intercalate at or are externally bound to DNA. The experimental data suggest that an equilibrium distribution for intercalated and externally groove-bound to DNA of porphyrin is reached for [Formula: see text] complexes. Radiative lifetimes of the various porphyrin species have been determined and evidence is found suggesting the contribution of non-linear effects to the intensity of laser induced fluorescence of r 〉 1000 complexes. Key words: cross section, fluorescence, porphyrin–DNA complexes, intercalation, outside bound.
Type of Medium:
Online Resource
ISSN:
0008-4042
,
1480-3291
Language:
English
Publisher:
Canadian Science Publishing
Publication Date:
1991
detail.hit.zdb_id:
1482256-8
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