Fluorescence enhancement of cationic diacetylene‐contained polyelectrolyte by anions and cations and application for sensitive and selective detection of Hg2+
Fluorescence enhancement of cationic diacetylene‐contained polyelectrolyte by anions and cations and application for sensitive and selective detection of Hg2+
复制标题
DOI：
10.1002/polb.22362
复制
发表时间：
2011-12
期刊：
影响因子：
--
通讯作者：
W. Zeng;W. Zeng;Lingyun Wang;S. Lin;Shouping Liu;R. Beuerman;D. Cao
中科院分区：
文献类型：
--
作者：
W. Zeng;W. Zeng;Lingyun Wang;S. Lin;Shouping Liu;R. Beuerman;D. Cao
报道了阳离子共轭芴-咔唑-联乙炔聚合物（CPFC）在阴、阳离子共同作用下的荧光增强现象。CPFC的荧光增强效应强烈地依赖于离子和反离子的性质。在DMF/H_2O体系中，PO、CO和Hg_2+对CPFC的荧光增强作用最强（10倍以上）。K4[Fe（CN）6]对CPFC的荧光有猝灭作用，Hg 2+可使CPFC的荧光恢复。在此基础上，利用CPFC/K_4 [Fe（CN）_6]体系研制了一种简单、灵敏的Hg_2 ~（2+）水溶液荧光“开启”传感器。© 2011 Wiley Periodicals，Inc.聚合物科学杂志B部分：聚合物物理，2011年
An unusual phenomenon, the fluorescence enhancement of cationic conjugated fluorene-co-carbazole-co-diacetylene polymers (CPFC) by both anionic and cationic ions, was reported. The fluorescence enhancement of CPFC strongly depended on the nature of the ions and the counterions. In the solution of DMF/H2O, PO, CO and Hg2+ showed the most pronounced fluorescence enhancement response of CPFC (more than 10-fold). The fluorescence of CPFC was quenched by K4[Fe(CN)6, and then could be recovered with the addition of Hg2+. Based on these observations, a simple and sensitive fluorescent “turn-on” sensor in aqueous solution for Hg2+ was developed by use of a system of CPFC/ K4[Fe(CN)6]. © 2011 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys, 2011