Journal
JOURNAL OF MOLECULAR LIQUIDS
Volume 274, Issue -, Pages 584-591Publisher
ELSEVIER
DOI: 10.1016/j.molliq.2018.11.007
Keywords
Photosensitizer; Surface active ionic liquid; Binding interaction; Bmim Os micelles; Effect of cyclodextrins
Funding
- Senior Research Fellowship for SS through CSIR-NET
- DST, India [EMR/2016/004788]
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The present study depicts a spectroscopic investigation on the binding interaction of a phenazinium-based photosensitizer, phenosafranin (PSF) with a micelle forming surface active ionic liquid (SAIL), 1-butyl-3-methylimidazolium octyl sulfate (Bmim Os). The steady-state as well as time-resolved spectroscopic results reveals the binding of PSF with the micelles of the ionic liquid. The modulations of the spectral properties of PSF on interacting with Bmim Os micelles have been further employed to monitor the effect of various cyclodextrins, alpha CD, beta CD and gamma CD (with varying dimensions of the hydrophobic cavity), on the Bmim Os micellar aggregates. The effective disruption of the Bmim Os micelles in presence of CDs is confirmed from the reduced size of Bmim Os micelles with added CD as observed from the DLS results. (C) 2018 Published by Elsevier B.V.
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