Copper(II)-Responsive "Off-On" Chemosensor Based on a Naphthalimide Derivative
Copper(II)-Responsive "Off-On" Chemosensor Based on a Naphthalimide Derivative
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基于萘酰亚胺衍生物的铜（II）响应“关-开”化学传感器
DOI：
10.1002/ajoc.201402160
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发表时间：
2014-12-01
影响因子：
2.7
通讯作者：
Zhang, Jun
中科院分区：
文献类型：
--
作者：
Yu, Chunwei;Zhang, Jun
设计了一种易于实现的带有萘酰亚胺基团的荧光化学传感器。该传感器对乙醇-水溶液中的Cu ~（2+）离子具有很高的选择性和灵敏度。该化学传感器含有C=N基团，在340 nm激发时发出微弱的荧光。加入Cu 2+离子后，在λ（em）= 433 nm处观察到荧光增强，而在其他金属离子和阴离子中没有发现这种显著变化。在优化条件下，该传感器对Cu ~（2+）离子的线性荧光增强范围为0.05-1.5 μ m，检测限为0.025 μ m。
An easily accessible fluorescent chemosensor bearing a naphthalimide group has been designed. The chemosensor is highly selective and sensitive for Cu2+ ions in ethanol-water solution compared with other tested metal ions and anions. The chemosensor, which contains a C=N group, fluoresces weakly when excited at 340 nm. Upon addition of Cu2+ ions, a fluorescent enhancement is observed with emission at lambda(em)= 433 nm, and no such significant changes are found with other metal ions and anions. With optimized conditions, the linear fluorescence enhancement of the sensor towards Cu2+ ions is in the range of 0.05-1.5 mu m with a detection limit of 0.025 mu m.