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Interaction of Lucifer yellow with cetyltrimethyl ammonium bromide micelles and the consequent suppression of its non-radiative processes

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Title Interaction of Lucifer yellow with cetyltrimethyl ammonium bromide micelles and the consequent suppression of its non-radiative processes
 
Creator MISHRA, PADMAJA P
KONER, APURBA L
DATTA, ANINDYA
 
Subject molecular biophysics
intramolecular mechanics
organic compounds
fluorescence
 
Description The interaction of the fluorophore Lucifer yellow with micelles has been monitored using steady state and time resolved fluorescence techniques. Contrary to the popular belief that the fluorophore is too polar to associate with the stern layer or hydrophobic core of micelles, we have observed that it binds with the micelles of the positively charged surfactant cetyl trimethyl ammonium bromide and that such interaction causes an decrease in the rates of its non-radiative processes. This phenomenon cannot be explained solely in the light of a reduced polarity, as we have demonstrated that the photophysics of Lucifer yellow is complex and intramolecular charge transfer does not seem to be the only excited state process that is operative.
 
Publisher Elsevier
 
Date 2009-02-27T11:06:22Z
2011-11-25T17:59:04Z
2011-12-26T13:06:33Z
2011-12-27T05:54:31Z
2009-02-27T11:06:22Z
2011-11-25T17:59:04Z
2011-12-26T13:06:33Z
2011-12-27T05:54:31Z
2004
 
Type Article
 
Identifier Chemical Physics Letters 400(1-3), 128-132
0009-2614
http://dx.doi.org/10.1016/j.cplett.2004.10.101
http://hdl.handle.net/10054/796
http://dspace.library.iitb.ac.in/xmlui/handle/10054/796
 
Language en