Pyrene-appended α-cyclodextrin as a fluorescent pH probe responding to a wide range

Iwao Suzuki, Mihoko Ui, Akiyo Yamauchi

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Pyrene-appended α-cyclodextrin (3) in which a trimethylenediamine linker connected the pyrene residue to the α-cyclodextrin moiety showed pH-dependent fluorescence intensity changes. The fluorescence intensity was almost linearly changed within the pH range of 5 - 10. The unique fluorescence response of 3 to the pH was due not only to the favorable pK a values (pK a1 = 6.4 and pK a2 = 8.8), but also to the almost equal contributions of the amino groups to the pyrene's fluorescence quenching. 2006

Original languageEnglish
Pages (from-to)655-657
Number of pages3
Journalanalytical sciences
Volume22
Issue number5
DOIs
Publication statusPublished - 2006 May

ASJC Scopus subject areas

  • Analytical Chemistry

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