文献类型：期刊文献

英文题名：Simultaneous determination of Hg(II) and Zn(II) using a GFP inspired chromophore

作者：Shi, Lei[1,2];Li, Yang[1,2];Liu, Zhao-Peng[1,2];James, Tony D.[3];Long, Yi-Tao[1,2]

机构：[1]E China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China;[3]Univ Bath, Dept Chem, Bath BA2 7AY, Avon, England

年份：2012

卷号：100

起止页码：401

外文期刊名：TALANTA

收录：;EI(收录号：20124715684574);WOS:【SCI-EXPANDED(收录号:WOS:000313773300053)】；

基金：This research was supported by the National Science Fund for Distinguished Young Scholars (21125522), the Specialized Research Fund for the Doctoral Program of Higher Education (No. 20100074120017), the Shanghai Municipal Natural Science Foundation (No. 11ZR1408900) and National Natural Science Foundation of China (Grant No. 21105028), the Major Research Plan of National Natural Science Foundation of China (91027035), the Fundamental Research Funds for the Central Universities (WK1013002) and the Open Project Program of the State Key Laboratory of Chemical Engineering (ECUST, SKL-ChE-11C01). The authors thank the Catalysis and Sensing for our Environment (CASE) network.

语种：英文

外文关键词：Green fluorescent protein; Simultaneous determination; Fluorescent and colorimetric; Chemosensor

摘要：A dual-function chemosensor for Hg2+ and Zn2+ ions, inspired by the green fluorescent protein (GFP) chromophore, was designed and synthesized, which could specifically recognize Zn2+ through an "OFF-ON" fluorescence mechanism due to the restriction of the free rotation of the aryl-alkene bond, whilst also producing a selective visible calorimetric response from yellow to pink with Hg2+ ions. The response upon exposure to Zn2+ and Hg2+ is instantaneous, and the detect limits of Zn2+ and Hg2+ are 2.18 x 10(-8) M and 4.91 x 10(-7) M respectively. (C) 2012 Elsevier B.V. All rights reserved.