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A novel coumarin-based fluorescence enhancement and colorimetric probe for Cu2+ via selective hydrolysis reaction

Paper ID Volume ID Publish Year Pages File Format Full-Text
26057 43932 2016 6 PDF Available
Title
A novel coumarin-based fluorescence enhancement and colorimetric probe for Cu2+ via selective hydrolysis reaction
Abstract

•A new coumarin-based fluorescence probe was synthesized for the first time.•The probe showed highly selective and sensitive responses to Cu2+ in aqueous media.•The detection limit toward Cu2+ was calculated to be as low as 23.9 nM.

A new colorimetric fluorescent probe, 3-benzothiazolyl-coumarin-7-yl picolinate (P1), based on coumarin derivative has been designed and synthesized to detect Cu2+ in CH3CN-water (1:1,v/v) solution. The probe showed highly selective and sensitive fluorescence enhancement response towards Cu2+ via selective hydrolysis reaction of the picolinate moiety followed by generating a strongly fluorescent 3-benzothiazolyl-7-hydroxycoumarin (2) moiety, whereas other competing metal cations (Na+, K+, Mg2+, Ag+, Fe3+, Pb2+, Mn2+, Ca2+, Ni2+, Cr3+, Zn2+, Sn2+, Hg2+, Al3+, Pd2+, Pt2+, Co2+, Au3+) did not possess the property. Upon the addition of Cu2+, the color of P1 changed from colorless to yellow-green, and gave an emission at around 470 nm. Moreover, the detection limit toward Cu2+ was calculated to be as low as 23.9 nM.

Graphical abstractA new coumarin-based fluorescence enhancement probe was designed and synthesized, for highly selective and sensitive detection of Cu2+ based on the hydrolysis reaction in CH3CN-water (1:1,v/v) solution. The detection limit toward Cu2+ is calculated to be as low as 23.9 nM.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Coumarin derivatives; Copper ion; Fluorescence enhancement; Hydrolysis reaction
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A novel coumarin-based fluorescence enhancement and colorimetric probe for Cu2+ via selective hydrolysis reaction
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 324, 30 June 2016, Pages 81–86
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us