A highly selective turn-on chemosensor for Zn2+ in aqueous media and living cells
A new simple quinoline-based chemosensor 1 was synthesized for Zn2+. 1 showed the selective fluorescence enhancement in the presence of Zn2+ with a 1:1 stoichiometry in a near-perfect aqueous solution (bis-tris buffer:DMSO= 999:1), which was reversible with the addition of ethylenediaminetetraacetic acid (EDTA). The detection limit (0.6 M) of 1 for Zn2+ was much lower than World Health Organization guideline (76 p,mu M) in drinking water. 1 was successfully applied to quantify and image Zn2+ in water samples, test kit and living cells. The sensing mechanism of Zn2+ by 1 via the intramolecular charge transfer was explained by theoretical calculations. (C) 2017 Elsevier B.V. All rights reserved.
- Publisher
- ELSEVIER SCIENCE SA
- Issue Date
- 2017-06
- Language
- English
- Article Type
- Article
- Keywords
EFFECTIVE CORE POTENTIALS; FLUORESCENCE SENSOR; ZINC ION; SCHIFF-BASE; MOLECULAR CALCULATIONS; RATIOMETRIC RECEPTOR; NANOMOLAR DETECTION; MONITORING ZN2+; PROBE; QUINOLINE
- Citation
SENSORS AND ACTUATORS B-CHEMICAL, v.244, pp.1045 - 1053
- ISSN
- 0925-4005
- Appears in Collection
- CH-Journal Papers(저널논문)
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