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Complexation of the Surfactants Triton X-102 and Igepal CA720 with -Cyclodextrin

Volume 46, Number 4 (April 1992) Page 659-668

Smith, Vonda K.; Ndou, Thilivhali T.; Warner, Isiah M.


The surfactants Igepal CA720 (IpICA7) and Triton X-102 (TX-102) and their interaction with β-cyclodextrin were studied with the use of various photophysical and photochemical methods. The fluorescence and absorbance spectra of these surfactants are concentration dependent and markedly enhanced in the presence of β-cyclodextrin. Nuclear magnetic resonance (NMR) spectroscopy infers that the phenyl group of these surfactants is included inside the β-CDx cavity. The orientation of the phenyl moiety of the surfactant molecule inside the β-CDx cavity was investigated with the use of induced circular dichroism (ICD).