Facile Iodine Detection via Fluorescence Quenching of β-Cyclodextrin:Bimane-Ditriazole Inclusion Complexes

Apurba Pramanik, Joy Karmakar, Flavio Grynzspan, Mindy Levine

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Reported herein is the detection of iodine using a non-covalent association complex formed between a β-cyclodextrin host and a designer bimane ditriazole guest. This complex responds to the presence of iodine with a marked decrease in the observed fluorescence signal. A sub-nanomolar detection limit of this system in the solution-state was determined. Moreover, results using filter paper onto which the β-cyclodextrin-bimane complex was adsorbed show a noticeable advantage compared to the cyclodextrin-free bimane. Thus, highly sensitive on-paper colorimetric iodine detection was achieved.

Original languageEnglish
Pages (from-to)253-260
Number of pages8
JournalIsrael Journal of Chemistry
Volume61
Issue number3-4
DOIs
StatePublished - Mar 2021

Keywords

  • Cyclodextrin
  • Fluorescence spectroscopy
  • Iodine
  • Sensors
  • Supramolecular chemistry

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