Perylenebisimide-based Fluorescent Chemosensors for Selective Detection of Zn2+ in Aqueous Solution

Author(s): Xuefeng Cong, Ningjie Wu, Lei Ma, Mingliang Li, Rongqi Zhou, Ge Gao, Jingbo Lan

Journal Name: Letters in Organic Chemistry

Volume 9 , Issue 7 , 2012


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Abstract:

Novel perylenebisimide-based fluorescent chemosensors PBI-5 and PBI-6 were designed and synthesized. Their selective recognition behavior toward metal ions was investigated by visual colorimetry and fluorescence spectroscopy. PBI-5 successfully exhibits a fluorescence turn-on response for Zn2+ and switch-off response for Cu2+ in neutral buffer solution, but the fluorescence turn-on response is moderately perturbed by Cd2+ and Pb2+. PBI-6 can effectively eliminate or weaken Pb2+ and Cd2+ induced interference and shows a better selectivity for Zn2+. Live cell imaging experiments indicates that both PBI-5 and PBI-6 can successfully enter the cell and apply in cell fluorescence imaging.

Keywords: Cell fluorescence imaging, colorimetry assay, fluorescent chemosensor, perylenebisimide, photoinduced electron transfer, selective recognition, retardation, magnesium, copper, iron, calcium

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Article Details

VOLUME: 9
ISSUE: 7
Year: 2012
Page: [503 - 508]
Pages: 6
DOI: 10.2174/157017812802139663
Price: $65

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