Picosecond study of the luminescence and transient absorption of methylene blue–polynucleotide complexes

Autor:	John M. Kelly, Wilhelm J. M. van der Putten, Godfrey S. Beddard
Rok vydání:	1990
Předmět:	chemistry.chemical_compound chemistry Polynucleotide Picosecond Excited state Ultrafast laser spectroscopy Molecular Medicine Singlet state Photochemistry Luminescence Methylene blue Adduct
Zdroj:	J. Chem. Soc., Chem. Commun.. :1346-1347
ISSN:	0022-4936
DOI:	10.1039/c39900001346
Popis:	Transient absorption signals observed after picosecond laser excitation of Methylene Blue (MB+) bound to double-stranded polydeoxyguanylic-deoxycytidylic acid {poly[d(G–C)]·poly[d(G–C)]} are assigned to the dye's singlet excited state reacting with a lifetime of 4 ps to form the electron-transfer product (MB˙·G˙+˙) which itself decays with a lifetime of 130 ps.
Databáze:	OpenAIRE
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