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A multi-responsive cyanine-based colorimetric chemosensor containing dipicolylamine moieties for the detection of Zn(II) and Cu(II) ions

Title
A multi-responsive cyanine-based colorimetric chemosensor containing dipicolylamine moieties for the detection of Zn(II) and Cu(II) ions
Authors
Hu, YingYin, JunYoon, Juyoung
Ewha Authors
윤주영
SCOPUS Author ID
윤주영scopus
Issue Date
2016
Journal Title
SENSORS AND ACTUATORS B-CHEMICAL
ISSN
0925-4005JCR Link
Citation
vol. 230, pp. 40 - 45
Keywords
CyanineColorimetric chemosensorpH sensorCopper sensorSulfide sensor
Publisher
ELSEVIER SCIENCE SA
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
A cyanine-based chemosensor containing dipicolylamine moieties is reported and its structure is welldefined. Investigation on the optical property shows it is pH-independent. Acidic medium can induce the color change from azure to dark blue while it presents the green in the alkaline condition (pH 10) in comparison to the neutral condition. More, owing to the introduction of dipicolylamine units, this chemosensor can be used as a colorimetric indicator for Zn(II) and Cu(II) ions along with color change from green to bright blue. Especially, its copper complex has a capability of determining the sulfide anion (S2-) with high selectivity, and as a consequence, the color of solution turns back to the green. This work provides a promising indicator for the analysis of multi species. (C) 2016 Elsevier B.V. All rights reserved.
DOI
10.1016/j.snb.2016.02.040
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자연과학대학 > 화학·나노과학전공 > Journal papers
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