Fluctuation in structure of inclusion complexes of cyclodextrins with fluorescent probes

Asao Nakamura, Kunihiko Saitoh, Fujio Toda

Research output: Contribution to journalArticle

24 Citations (Scopus)


The lifetime distribution of the fluorescence from inclusion complexes of cyclodextrins with anilinonaphthalenesulfonates (ANSs) was analyzed by time-correlated single-photon counting measurements. The very large width of the lifetime distribution as well as the dependence of the apparent maximum wavelength of the fluorescence on the excitation wavelength indicates that the conformation of the excited TNS molecules in cyclodextrin cavities is distributed within a wide range. These observations indicate a striking similarity between the fluorescence of fluorophores in proteins and that in the inclusion complexes.

Original languageEnglish
Pages (from-to)110-115
Number of pages6
JournalChemical Physics Letters
Issue number1-2
Publication statusPublished - 1991 Nov 29
Externally publishedYes


ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces

Cite this