文献类型：期刊文献

英文题名：Highly selective fluorescence turn-on chemosensor based on naphthalimide derivatives for detection of copper(II) ions

作者：Chen, Zhijun[1,2];Wang, Limin[1,2,3];Zou, Gang[1,2];Tang, Jun[1,2];Cai, Xiaofei[1,2];Teng, Mingshuang[1,2];Chen, Li[1,2]

机构：[1]E China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China;[3]Wenzhou Univ, Coll Chem & Mat Engn, Wenzhou 325027, Zhejiang, Peoples R China

年份：2013

卷号：105

起止页码：57

外文期刊名：SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY

收录：;EI(收录号：20130916051619);WOS:【SCI-EXPANDED(收录号:WOS:000317545400011)】；

基金：The authors gratefully acknowledge the support from the Fundamental Research Funds for the Central Universities, the Opening Foundation of Zhejiang Provincial Top Key Discipline, the National Nature Science Foundation of China (20672035), and Baihehua Group.

语种：英文

外文关键词：Copper(II) ions; Fluorescent probe; Fluorescence enhancement; Naphthalimide derivatives; High selectivity; Schiff base

摘要：A new fluorescent probe, DN-SB, was synthesized. ON-SB was based on the naphthalimide derivatives and exhibited high selectivity and sensitivity for Cu2+ ions. As a Cu2+-amplifled fluorescent probe, its fluorescence spectrum showed 4.5-fold enhancement in the intensity of the signal at 519 nm on binding with the Cu2+. Based on the fluorescence titration spectra and job's-plot, binding mode of DN-SB with Cu2+ was proposed. Fluorescence intensity was linear with concentration of Cu2+ cation in a range from 4 mu M to 7 mu M. ON-SB was also sensitive for copper ions. The detection limit was calculated to be 0.15 mu M which indicated ON-SB was sensitive to Cu2+. (C) 2012 Elsevier B.V. All rights reserved.