期刊
TETRAHEDRON LETTERS
卷 58, 期 42, 页码 3951-3956出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2017.08.078
关键词
Dual chemosensor; Fe3+; Cu2+; Pyrene derivative; Selectivity; Cell imaging
资金
- Natural Science Foundation of Liaoning Province of China [2015020246]
- Foundation of University of Science and Technology Liaoning [2015TD02]
- Engineering Research Center of Advanced Coal & Coking Technology and Efficient Utilization of Coal Resources
- Education Department of Liaoning Province [USTLKFZD 201637]
A pyrene based chemosensor was designed and synthesized. The pyrene fluorophore was connected with a pyridine unit through a Schiff base structure to give the sensor (L). L was tested with a variety of metal ions and exhibited high colorimetric selectivities for Cu2+ and Fe' over other ions. Upon binding with Cu2+ or Fe., I. showed an obvious optical color change from colorless to pink for Cu2+ or orange for Fe3+ over a wide pH range from 3 to 12. Moreover, the fluorescence of L at 370 nm decreased sharply after bonding with Fe3+, while other metal ions including Cu2+ had no apparent interference. Thus, using such single chemosensor, Cu2+ and Fe3+ can be detected independently with high selectivity and sensitivity. The limits of detection toward Cu' and Fe3+ were 8.5 and 2.0 mu M, respectively. DFT calculation results also proved the formation of stable coordination complexes and the phenomenon of fluorescence quenching by Fe3+. Furthermore, L was also successfully used as a bioimaging reagent for detection of Fe3+ in living cells. (C) 2017 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据