A dual chemosensor for Zn2+ and Co2+ in aqueous media and living cells: Experimental and theoretical studies

A new versatile ‘dual’ chemosensor 1 has been synthesized for Zn2+ and Co2+. The sensor 1 comprises of quinoline as a fluorophore and N1,N1-dimethylethane-1,2-diamine as a water-soluble functional group. Sensor 1 showed a remarkable fluorescence enhancement in the presence of Zn2+ in aqueous solutio...

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Bibliographic Details
Published in:Sensors and actuators. B, Chemical Chemical, 2016-02, Vol.223, p.509-519
Main Authors: Park, Gyeong Jin, Lee, Jae Jun, You, Ga Rim, Nguyen, LeTuyen, Noh, Insup, Kim, Cheal
Format: Article
Language:English
Subjects:
Actuators
Cell imaging
Cells (biology)
Chemoreceptors
Chemosensor
Color
Colorimetric
Determination of Co ion
Determination of Zn ion
Fluorescence
Monitoring
Quinoline
Sensors
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Summary:A new versatile ‘dual’ chemosensor 1 has been synthesized for Zn2+ and Co2+. The sensor 1 comprises of quinoline as a fluorophore and N1,N1-dimethylethane-1,2-diamine as a water-soluble functional group. Sensor 1 showed a remarkable fluorescence enhancement in the presence of Zn2+ in aqueous solution. The sensor 1 also acted as a colorimetric sensor for Co2+ by changing its color from colorless to yellow. Importantly, the chemosensor 1 could be used to quantify Zn2+ and Co2+ in water samples and to image and quantify Zn2+ in living cells. Moreover, the sensing mechanisms of 1 for Zn2+ and Co2+ were supported by theoretical calculations. Therefore, this sensor has the ability to be a practical system for monitoring Zn2+ and Co2+ concentrations in biological systems and aqueous samples.
ISSN:0925-4005
1873-3077
DOI:10.1016/j.snb.2015.09.129