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论文类型：期刊论文

发表时间：2011-07-01

发表刊物：TETRAHEDRON

收录刊物：Scopus、SCIE

卷号：67

期号：26

页面范围：4869-4873

ISSN号：0040-4020

关键字：Ratiometric fluorescent probe; Exclusively selective Cu-II; Imaging agent; Blue shift

摘要：A new ratiometric and exclusively selective fluorescent probe N-butyl-4,5-di[N-(phenyl)-2-(amino)-acetamino]-1,8-naphthalimide (1) was designed and synthesized on the basis of the mechanism of internal charge transfer (ICT). The probe 1 showed exclusively selectivity for Cull in the presence of a variety of other metal ions in aqueous ethanol solutions and the binding mode of probe 1 with Cu-II was 1:1 metal-ligand complex. Fluorescent emission spectra of probe 1 in the presence of Cu-II showed a 50 nm blue shift, which is from 521 nm to 471 nm. Furthermore, probe 1 shows the same fluorescent change with the Cu-II in living cells. (C) 2011 Elsevier Ltd. All rights reserved.