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题名: Highly Selective and Sensitive Detection of Cyanide by a Reaction-Based Conjugated Polymer Chemosensor
作者: Wu XF ; Xu BW ; Tong, Hui(童辉) ; Wang LX
刊名: MACROMOLECULES
出版日期: 2011
卷号: 44, 期号:11, 页码:4241-4248
关键词: FLUORIDE-ION ; FLUORESCENT CHEMOSENSORS ; CHEMICAL SENSORS ; ANION INDICATOR ; METAL-IONS ; POLYELECTROLYTE ; PYROPHOSPHATE ; RECOGNITION ; RECEPTORS ; WATER
通讯作者: Tong H
中文摘要: Based on a specific nucleophilic addition reaction with cyanide, a dicyano-vinyl-containing conjugated polymer (P1) has been designed and synthesized as a colorimetric and fluorescent chemosensor for cyanide anion. The combination of advantages of both reaction-based sensors and conjugated polymer sensors offers its highly sensitive and selective recognition of CN(-). The addition of CN(-) to P1 solution induced a change in the solution color from yellow-green to colorless, while no color change could be observed in presence of other common anions, by which CN(-) can be identified from other anions directly with the naked eye. At the same time, a 31.6-fold fluorescence quenching was achieved upon adding CN(-) into P1 solution. The fluorescence quenching has shown a linear response to CN(-) in the concentration range of 0.5-30 mu M. Furthermore, its detection limit for CN(-) can be as low as 14 ppb, which is among the best results for the fluorescent conjugated polymer-based cyanide chemosensors. Compared with its small molecular counterpart, P1 exhibits higher sensitivity and selectivity, wider linear region, and faster response.
收录类别: SCI收录期刊论文
语种: 英语
WOS记录号: WOS:000291288900028
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内容类型: 期刊论文
URI标识: http://ir.ciac.jl.cn/handle/322003/44581
Appears in Collections:长春应用化学研究所知识产出_期刊论文

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Wu XF;Xu BW;Tong H;Wang LX.Highly Selective and Sensitive Detection of Cyanide by a Reaction-Based Conjugated Polymer Chemosensor,MACROMOLECULES,2011,44(11):4241-4248
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