Highly Sensitive Water Detection Through Reversible Fluorescence Changes in a syn -Bimane Based Boronic Acid Derivative

Reported herein is a fluorometric and colorimetric sensor for the presence of trace amounts of water in organic solvents, using -bimane based boronate ester . This sensor responds to the presence of water with a highly sensitive turn-off fluorescence response, with detection limits as low as 0.018%...

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Published inFrontiers in chemistry Vol. 9; p. 782481
Main Authors Pramanik, Apurba, Karmakar, Joy, Grynszpan, Flavio, Levine, Mindy
Format Journal Article
LanguageEnglish
Published Switzerland Frontiers Media S.A 17.01.2022
Subjects
bimane
boronate ester
Chemistry
fluorescence
paper-based sensing
water sensor
water sensor
paper-based sensing
fluorescence
bimane
boronate ester
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Summary:Reported herein is a fluorometric and colorimetric sensor for the presence of trace amounts of water in organic solvents, using -bimane based boronate ester . This sensor responds to the presence of water with a highly sensitive turn-off fluorescence response, with detection limits as low as 0.018% water (v/v). Moreover, analogously high performance was observed when compound was adsorbed on filter paper, with the paper-based sensor responding both to the presence of liquid water and to humid atmospheres. Reusability of the paper-based sensor up to 11 cycles was demonstrated, albeit with progressive decreases in the performance, and H NMR and mass spectrometry analyses were used to explain the observed, hydrolysis-based sensor response.
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Edited by: Ottavia Giuffrè, University of Messina, Italy
These authors have contributed equally to this work
Reviewed by: Jinsong Han, China Pharmaceutical University, China
Ugo Caruso, University of Naples “Federico II”, Italy
This article was submitted to Analytical Chemistry, a section of the journal Frontiers in Chemistry
ISSN:2296-2646
2296-2646
DOI:10.3389/fchem.2021.782481