Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 213, Issue -, Pages 268-275Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2015.02.094
Keywords
Zinc fluorescent sensor; Visible cobalt; Copper sensor
Funding
- Converging Research Center Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology [2012001725, 2012008875]
- Brigham Young University
- National Research Foundation of Korea [2015R1A2A2A09001301, 2012R1A1B3001725] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Monitoring Zn2+ levels in biological environments with fluorescent sensors is important. This paper gives the synthesis and properties of a new Zn2+ sensor based on quinoline and pyridylaminophenol. The sensor is selective for Zn2+ and remains fluorescent when bound to Zn-2 even in the presence of other metal ions. Along with fluorescing when bound to Zn2+, the sensor becomes colored when Cu2+ or Co2+ is added to it. These two metal ions result in the sensor becoming yellow. The crystal structure of the Cu-sensor complex shows that all of the sensor's nitrogens are bound to the metal ion. In studies with living cells, the fluorescence intensity of the sensor correlates to the concentration of Zn2+. (C) 2015 Elsevier B.V. All rights reserved.
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