Spectroscopic and electrochemical study of Rose Bengal in aqueous solutions of cyclodextrins

Bioelectrochemistry. 2004 Jun;63(1-2):107-10. doi: 10.1016/j.bioelechem.2003.09.017.

Abstract

The interaction of Rose Bengal (RB) in aqueous solution of LiClO4 0.1 M with alpha-cyclodextrin (alpha-CD), hydroxypropyl-beta-cyclodextrins (HP-beta-CD) and hydroxypropyl-gamma-cyclodextrins (HP-gamma-CD) were studied by spectrophotometric measurements. The presence of Induced Circular Signals and the results of the analysis of the modifications in the absorbance spectra of RB produced by the presence of CDs in solution indicate that RB forms inclusion complexes only with HP-beta-CD and with HP-gamma-CD.

Publication types

  • Comparative Study
  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Circular Dichroism / methods
  • Cyclodextrins / chemistry*
  • Cyclodextrins / radiation effects*
  • Dimerization
  • Electrochemistry / methods*
  • Light
  • Macromolecular Substances
  • Protein Binding / radiation effects
  • Rose Bengal / chemistry*
  • Rose Bengal / radiation effects*
  • Solutions
  • Spectrum Analysis / methods*
  • Water / chemistry*

Substances

  • Cyclodextrins
  • Macromolecular Substances
  • Solutions
  • Water
  • Rose Bengal