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Spectral and photophysical studies on the inclusion complexation between Triton X-100 and β-cyclodextrin: A competitive method using a substituted 3H-indole probe

Paper ID Volume ID Publish Year Pages File Format Full-Text
27774 44042 2008 9 PDF Available
Title
Spectral and photophysical studies on the inclusion complexation between Triton X-100 and β-cyclodextrin: A competitive method using a substituted 3H-indole probe
Abstract

We report herein the interaction of the nonionic surfactant Triton X-100 with β-cyclodextrin (β-CD) using 2-(p-aminophenyl)-3,3-dimethyl-5-carboethyoxy-3H-indole (1) as a fluorescent probe through a competitive method. The formation of 1:1 and 1:2 (guest:host) inclusion complexes was confirmed and the association constants were estimated. Using Triton X-100 itself as a probe, the interaction pattern and the association constants obtained were in agreement with those sensed by 1. Furthermore, the binding site of Triton X-100 with β-CD was investigated. It was found that the entire hydrophobic part of Triton X-100 was included into the cavity of β-CD. For comparison, we also employed 1 as a probe to study the interaction between Brij 56 and β-CD. The above results strongly suggest that molecule 1 is a good candidate acting as a probe to study the inclusion complex between a non-fluorescent guest and cyclodextrin.

Keywords
Inclusion complex; β-Cyclodextrin; Triton X-100; Steady-state fluorescence; Fluorescence lifetime; 2D NOESY NMR
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Spectral and photophysical studies on the inclusion complexation between Triton X-100 and β-cyclodextrin: A competitive method using a substituted 3H-indole probe
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 193, Issues 2–3, 25 January 2008, Pages 178–186
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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