Fluorene-thiophene-based thin-film fluorescent chemosensor for methamphetamine vapor by thiophene-amine interaction

被引：37

作者：

Fu, Yanyan ^{[1
]}

Shi, Liqi ^{[1
,2
]}

Zhu, Defeng ^{[1
]}

He, Chao ^{[1
,2
]}

Wen, Dan ^{[1
,2
]}

He, Qingguo ^{[1
]}

Cao, Huimin ^{[1
]}

Cheng, Jiangong ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Transducer Technol, Shanghai, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2013年 / 180卷

关键词：

Fluorene-thiophene; Turn-on; Methamphetamine; Sensor; SENSORS; URINE;

D O I：

10.1016/j.snb.2011.10.031

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A fluorescence "turn-on" sensor for methamphetamine (MA) vapor sensing was realized. Two sensory materials, 9,9-dioctylfluorene-2,7-bisthiophene (FBT) and poly [(9,9-dioctylfuorenyl-2,7-diyl)-alt (3-hexylthiophene-2,5-diyl)] (PET), were synthesized and their fluorescence sensing potential towards MA has been demonstrated. Both materials show high sensitivity and selectivity to MA vapor in solid state. Upon exposure to the saturated vapor of MA, the fluorescence could be increased 6.4 and 4.65 folds for FBT and PET respectively and these changes could be readily distinguished by naked eyes. Taking a fluorescence intensity change as 1%, the detection limits of FBT and PET for MA vapor were estimated to be 1.9 ppm and 6.4 ppm. The sensing mechanism was proposed to arise from fluorescence enhancement induced by a thiophene-amine interaction. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：2 / 7

页数：6

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