Please use this identifier to cite or link to this item: http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/1794
Title: How Does the Urea Dynamics Differ from Water Dynamics inside the Reverse Micelle?
Authors: Sengupta, Abhigyan
Khade, Rahul V.
HAZRA, PARTHA
Dept. of Chemistry
Keywords: Urea Dynamics
Water Dynamics
AOT reverse micelle
Fluorescence anisotropy
urea molecules
2011
Issue Date: Sep-2011
Publisher: American Chemical Society
Citation: Journal of Physical Chemistry A, 115.(38), 10398-10407.
Abstract: In this study, the urea dynamics inside AOT reverse micelle (RM) has been monitored without intervention of water using time-resolved fluorescence techniques from the picosecond to nanosecond time regime. It has been observed that urea dynamics inside the reverse micelle is severely retarded compared to water RM due to the formation of highly networked urea cluster inside the RM. Time-resolved fluorescence anisotropy study also confirms the existence of a confined environment around the dye at higher concentrations of urea inside the reverse micelle. The dynamics of urea–water mixtures inside AOT reverse micelle has also been monitored with increasing urea concentration to get insight about the effect of urea on the overall solvation dynamics feature. It has been observed that with the increase in urea concentration, the overall dynamics becomes slower, and it infers the presence of few water or urea molecules, those strongly associated with surrounding urea and (or) water by hydrogen bonds.
URI: http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/1794
https://doi.org/10.1021/jp206069z
ISSN: 1089-5639
1520-5215
Appears in Collections:JOURNAL ARTICLES

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