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Issue 15, 2017
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New sensitive and selective calixarene-based fluorescent sensors for the detection of Cs+ in an organoaqueous medium

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Abstract

Herein, new fluorescent sensors based on calix[4]arene-biscrown-6 containing extended coumarin as a fluorophore were synthetized and their photophysical properties were characterized. These compounds display intense absorption and emission spectra in the visible region due to extension of the coumarin system. Moreover, complexation properties of these ligands were reported, and the Calix-COU-Benz-CN ligand was able to selectively detect cesium ions in an organoaqueous solvent. Upon the addition of cesium, a blue-shift in the absorption spectra and an enhancement of the emission spectra were observed. This ligand was incorporated in a microfluidic device for the detection of Cs+ ions, and a detection limit of 1.4 μM was achieved for these ions.

Graphical abstract: New sensitive and selective calixarene-based fluorescent sensors for the detection of Cs+ in an organoaqueous medium

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Publication details

The article was received on 26 Dec 2016, accepted on 27 May 2017 and first published on 08 Jun 2017


Article type: Paper
DOI: 10.1039/C6NJ04085C
Citation: New J. Chem., 2017,41, 7162-7170
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    New sensitive and selective calixarene-based fluorescent sensors for the detection of Cs+ in an organoaqueous medium

    N. Kumar, Q. Pham-Xuan, A. Depauw, M. Hemadi, N. Ha-Duong, J. Lefevre, M. Ha-Thi and I. Leray, New J. Chem., 2017, 41, 7162
    DOI: 10.1039/C6NJ04085C

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