Spectroscopic Investigations on the Interaction of Crystal Violet with Nonionic Micelles of Brij and Igepal Surfactants in Aqueous Media

Autor:	Karen M. Glenn, Stephanie A. Moore, Rama M. Palepu
Rok vydání:	2007
Předmět:	Aqueous solution Aggregation number Inorganic chemistry Biophysics Biochemistry Fluorescence Micelle Fluorescence spectroscopy chemistry.chemical_compound chemistry Pulmonary surfactant Pyrene Crystal violet Physical and Theoretical Chemistry Molecular Biology
Zdroj:	Journal of Solution Chemistry. 36:563-571
ISSN:	1572-8927 0095-9782
DOI:	10.1007/s10953-007-9133-6
Popis:	The behavior of the triphenylmethane dye crystal violet in aqueous solutions containing polyoxyethylene nonionic surfactants was investigated using absorption and fluorescence spectroscopic techniques. The interactions of the dye were examined in micellar media in order to prevent dye aggregation and to ensure maximum dye and surfactant interaction. The relative fluorescence enhancements and the binding constants of the dye to the surfactant micelles were determined. The micropolarities of the micellar environment sensed by the pyrene probe were estimated from the I 1/I 3 intensity ratios of the fluorescence spectra of pyrene. The fluorescence quenching of pyrene by hexadecylpyridinium chloride was investigated in aqueous surfactant mixtures at a fixed concentration of surfactant in order to determine the aggregation numbers. Attempts were made to correlate the binding constants obtained in this investigation to various micellar parameters.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5cc1f8b2dca351424fe46fdeda9d2371 https://doi.org/10.1007/s10953-007-9133-6 Zobrazit plný text záznamu Full text from SpringerLink