期刊
CHEMISTRYSELECT
卷 3, 期 5, 页码 1521-1526出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/slct.201702603
关键词
fluorescent chemosensor; copper(II) determination; salicylaldehyde azine; aggregation-induced emission; tetraphenyl ethylene
资金
- National Natural Science Foundation of China [51773057, 21372070, 21471052]
- program for New Century Excellent Talents - China Education Ministry [NCET-13-0784]
A new fluorescent chemosensor 2,2'-((1E,1E)-hydrazine-1,2-diylidenebis(methanylylidene))bis(4-(1,2,2-triphenylvinyl)phenol) TPESAA incorporated with salicylaldehyde azine motif was developed based on aggregation-induced emission (AIE). The probe TPESAA was prepared from 4-hydroxy tetraphenyl ethylene which underwent formylation followed by condensation with hydrazine hydrate. It showed ratiometric fluorescence quenching behavior to Cu2+, which could induce naked-eye color changes from colorless to pale yellow. Moreover, it displayed excellent sensitivity and selectivity toward Cu2+ without interference from other metal ions. The extent of quenching is dependent on the concentration of Cu2+ in the range of 0.5-7.5 mu M, and a remarkable detection limit (30.9 nM) can be achieved. Furthermore, the obtained Cu2+ complex could be applied to quantitative determination of cysteine in the range of 0.2-2 mu M with a good linear relationship.
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