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Facile Iodine Detection via Fluorescence Quenching of β‐Cyclodextrin:Bimane‐Ditriazole Inclusion Complexes
Author(s) -
Pramanik Apurba,
Karmakar Joy,
Grynzspan Flavio,
Levine Mindy
Publication year - 2021
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.202000092
Subject(s) - chemistry , cyclodextrin , iodine , detection limit , fluorescence , covalent bond , quenching (fluorescence) , combinatorial chemistry , organic chemistry , chromatography , physics , quantum mechanics
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.