A colorimetric and fluorescence "turn-off" chemosensor for the detection of silver ion based on a conjugated polymer containing 2,3-di(pyridin-2-yl)quinoxaline

被引：76

作者：

Cui, Wei ^{[1
]}

Wang, Lingyun ^{[1
]}

Xiang, Gang ^{[1
]}

Zhou, Lixia ^{[2
]}

An, Xiaoning ^{[1
]}

Cao, Derong ^{[1
]}

机构：

[1] S China Univ Technol, Sch Chem & Chem Engn, State Key Lab Luminescent Mat & Devices, Guangzhou 510641, Guangdong, Peoples R China

[2] Chinese Acad Sci, South China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2015年 / 207卷

基金：

中国国家自然科学基金;

关键词：

Conjugated polymer; Silver ion detection; Colorimetric and fluorescent chemosensor; Quinoxaline; SELECTIVE POTENTIOMETRIC SENSOR; PYROLYTIC-GRAPHITE ELECTRODE; SCHIFF-BASE; PVC MATRIX; CHEMICAL SENSORS; RECENT PROGRESS; ON FLUORESCENT; AQUEOUS-MEDIA; DNA DETECTION; POLYELECTROLYTE;

D O I：

10.1016/j.snb.2014.10.072

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Two novel conjugated polymers containing 2,3-di(pyridin-2-yl)quinoxaline (DPQ) unit (P1) and 2,3-di(thiophen-2-yl)quinoxaline (DTQ) unit (P2) were designed and synthesized through Sonogashira coupling reaction. P1 provided high sensitivity and selectivity to silver ions: color change from green to brown red and fluorescent emission quenching, which can be observed by naked eye, even in the presence of interference cations. However, P2 with the similar polymer backbone to P1 showed no absorption and fluorescence changes toward any cations. Therefore, the DPQ units in P1 exhibited a key role for the selective recognition of Ag+, which was further confirmed by the H-1 NMR titration, density functional theory (DFT) calculations and electrochemical studies. These results not only imply that DPQ based conjugated polymer is a promising probe of Ag+ ions but also afford a good guidance to design effective polymer sensors in future. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：281 / 290

页数：10

共 69 条

[1] Fluorogenic polydiacetylene supramolecules: Immobilization, micropatterning, and application to label-free chemosensors [J].

Ahn, Dong June ;

Kim, Jong-Man .

ACCOUNTS OF CHEMICAL RESEARCH, 2008, 41 (07) :805-816

[2] Ferrocene-based multichannel molecular chemosensors with high selectivity and sensitivity for Pb(II) and Hg(II) metal cations [J].

Alfonso, Maria ;

Tarraga, Alberto ;

Molina, Pedro .

DALTON TRANSACTIONS, 2010, 39 (37) :8637-8645

[3] Photoinduced Electron Transfer Reactions of Highly Conjugated Thiophenes for Initiation of Cationic Polymerization and Conjugated Polymer Formation [J].

Aydogan, Binnur ;

Yagci, Yusuf ;

Toppare, Levent ;

Jockusch, Steffen ;

Turro, Nicholas J. .

MACROMOLECULES, 2012, 45 (19) :7829-7834

[4] Conjugated polymers containing a 2,2′-biimidazole moiety-a novel fluorescent sensing platform [J].

Bao, Yinyin ;

Li, Qianbiao ;

Liu, Bin ;

Du, Fanfan ;

Tian, Jiao ;

Wang, Hu ;

Wang, Yanxue ;

Bai, Ruke .

CHEMICAL COMMUNICATIONS, 2012, 48 (01) :118-120

[5] Combinatorial Energy Transfer between an End-Capped Conjugated Polyelectrolyte and Chromophore-Labeled PNA for Strand-Specific DNA Detection [J].

Dishari, Shudipto Konika ;

Pu, Kan-Yi ;

Liu, Bin .

MACROMOLECULAR RAPID COMMUNICATIONS, 2009, 30 (19) :1645-1650

[6] A Highly Selective Turn-On Colorimetric, Red Fluorescent Sensor for Detecting Mobile Zinc in Living Cells [J].

Du, Pingwu ;

Lippard, Stephen J. .

INORGANIC CHEMISTRY, 2010, 49 (23) :10753-10755

[7] New, highly stable electrochromic polymers from 3,4-ethylenedioxythiophene-bis-substituted quinoxalines toward green polymeric materials [J].

Durmus, Asuman ;

Gunbas, Gorkem E. ;

Toppare, Levent .

CHEMISTRY OF MATERIALS, 2007, 19 (25) :6247-6251

[8] Water-soluble cationic poly(p-phenyleneethynylene)s (PPEs):: Effects of acidity and ionic strength on optical behaviour [J].

Fan, QL ;

Zhou, Y ;

Lu, XM ;

Hou, XY ;

Huang, W .

MACROMOLECULES, 2005, 38 (07) :2927-2936

[9] Continuous fluorometric assays for acetylcholinesterase activity and inhibition with conjugated polyelectrolytes [J].

Feng, Fude ;

Tang, Yanli ;

Wang, Shu ;

Li, Yuliang ;

Zhu, Daoben .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (41) :7882-7886

[10] Water-soluble fluorescent conjugated polymers and their interactions with biomacromolecules for sensitive biosensors [J].

Feng, Xuli ;

Liu, Libing ;

Wang, Shu ;

Zhu, Daoben .

CHEMICAL SOCIETY REVIEWS, 2010, 39 (07) :2411-2419

← 1 2 3 4 5 6 7 →