A pyrene based fluorescent turn on chemosensor for detection of Cu2+ ions with antioxidant nature

被引：39
作者：
Chakraborty, Nilanjan [1 ,3 ]
Chakraborty, Arijit [2 ]
Das, Suman [3 ]
机构：
[1] Maulana Azad Coll, Dept Chem, 8 Rafi Ahmed Kidwai Rd, Kolkata 700013, India
[2] Acharya B N Seal Coll, Dept Chem, Cooch Behar 730161, W Bengal, India
[3] Jadavpur Univ, Dept Chem, Raja SC Mullick Rd, Kolkata 700032, India
来源：
JOURNAL OF LUMINESCENCE | 2018年 / 199卷
关键词：
Pyrene based sensor; Naked eye copper sensing; Turn on fluorescence; AIE (aggregation induced emission); CAC (critical aggregate concentration); Antioxidant; COPPER; SENSOR; RECOGNITION; EMISSION; CU(II); PROBES;
D O I：
10.1016/j.jlumin.2018.03.042
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The Copper ion recognition ability of a pyrene based sensor (1) was explored. A selective Cu2+ ion induced colorimetric naked eye changes and a turn on emission was observed in acetonitrile medium. The results were monitored through UV-vis spectrophotometry, steady state emission and fluorescence life time studies. The outcome revealed a selective and sensitive Cu2+ recognition with a detection limit of 2.5x10(-6) M. The compound exhibited aggregation induced emission (AIE) in water-acetonitrile mixture where its critical aggregate concentration was measured by tensiometry at the solvent fraction of maximum AIE. Moreover the compound exhibited an antioxidant nature in DPPH (2,2-diphenyl-1-picrylhydrazyl) assay.
引用
收藏
页码：302 / 309
页数：8
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