A Turn-on Fluorescent Chemosensor for Zn2+ Based on Quinoline in Aqueous Media

Yong Sung Kim; Jae Jun Lee; Sun Young Lee; Pan Gi Kim; Cheal Kim

doi:10.1007/s10895-016-1771-x

A Turn-on Fluorescent Chemosensor for Zn²⁺ Based on Quinoline in Aqueous Media

Yong Sung Kim, Jae Jun Lee, Sun Young Lee, Pan Gi Kim, Cheal Kim

Department of Forest Ecology and Protection

Seoul National University of Science and Technology (SNUST)

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

A simple “off-on fluorescence type” chemosensor 1 3-((2-(dimethylamino)ethyl)amino)-N-(quinolin-8-yl)propanamide has been synthesized for Zn²⁺. The receptor 1 comprises the quinoline moiety as fluorophore and the N,N^′-dimethylethane-1,2-diamine as a binding site. 1 showed a remarkable fluorescence enhancement in the presence of Zn²⁺ in aqueous solution. Importantly, the chemosensor 1 could be used to detect and quantify Zn²⁺ in water samples. In particular, this chemosensor could clearly distinguish Zn²⁺ from Cd²⁺. The binding properties of 1 with Zn²⁺ ions were investigated by UV-vis, fluorescence, electrospray ionization mass spectroscopy and ¹H NMR titration.

Original language	English
Pages (from-to)	835-844
Number of pages	10
Journal	Journal of Fluorescence
Volume	26
Issue number	3
DOIs	https://doi.org/10.1007/s10895-016-1771-x
State	Published - 1 May 2016

Keywords

Chemosensor
Determination of Zn ion
Fluorescence enhancement
Quinoline

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title = "A Turn-on Fluorescent Chemosensor for Zn2+ Based on Quinoline in Aqueous Media",

abstract = "A simple “off-on fluorescence type” chemosensor 1 3-((2-(dimethylamino)ethyl)amino)-N-(quinolin-8-yl)propanamide has been synthesized for Zn2+. The receptor 1 comprises the quinoline moiety as fluorophore and the N,N′-dimethylethane-1,2-diamine as a binding site. 1 showed a remarkable fluorescence enhancement in the presence of Zn2+ in aqueous solution. Importantly, the chemosensor 1 could be used to detect and quantify Zn2+ in water samples. In particular, this chemosensor could clearly distinguish Zn2+ from Cd2+. The binding properties of 1 with Zn2+ ions were investigated by UV-vis, fluorescence, electrospray ionization mass spectroscopy and 1H NMR titration.",

keywords = "Chemosensor, Determination of Zn ion, Fluorescence enhancement, Quinoline",

author = "Kim, {Yong Sung} and Lee, {Jae Jun} and Lee, {Sun Young} and Kim, {Pan Gi} and Cheal Kim",

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AU - Lee, Sun Young

AU - Kim, Pan Gi

AU - Kim, Cheal

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AB - A simple “off-on fluorescence type” chemosensor 1 3-((2-(dimethylamino)ethyl)amino)-N-(quinolin-8-yl)propanamide has been synthesized for Zn2+. The receptor 1 comprises the quinoline moiety as fluorophore and the N,N′-dimethylethane-1,2-diamine as a binding site. 1 showed a remarkable fluorescence enhancement in the presence of Zn2+ in aqueous solution. Importantly, the chemosensor 1 could be used to detect and quantify Zn2+ in water samples. In particular, this chemosensor could clearly distinguish Zn2+ from Cd2+. The binding properties of 1 with Zn2+ ions were investigated by UV-vis, fluorescence, electrospray ionization mass spectroscopy and 1H NMR titration.

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A Turn-on Fluorescent Chemosensor for Zn²⁺ Based on Quinoline in Aqueous Media

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Keywords

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