Surfactant-induced modification of quenching of conjugated polymer fluorescence by electron acceptors: applications for chemical sensing

被引：121

作者：

Chen, LH

McBranch, D

Wang, R

Whitten, D

机构：

[1] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA

[2] LLC, QLT Biosyst, Santa Fe, NM 87501 USA

来源：

CHEMICAL PHYSICS LETTERS | 2000年 / 330卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(00)00970-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Both the photophysics and the fluorescence quenching behavior of an anionic conjugated polymer towards various small molecule quenchers can be modulated effectively by complexing the polymer with a simple countercharged detergent. For example upon adding odecyltrimethylammonium bromide (DTA) to the polymer, cationic quenchers such as methyl viologen become less effective while the quenching by neutral reagents - most notably nitroaromatics or cyanoaromatics - is enhanced. Thus, the polymer-detergent complex provides a new platform for sensing chemical agents via fluorescence quenching. Thin films formed from the complex exhibit high sensitivity to quenching by nitroaromatic vapor and reasonable reversibility. (C) 2000 Elsevier Science B.V. All rights reserved.

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页码：27 / 33

页数：7

相关论文

共 15 条

[1] PHOTOCHEMICAL REACTIVITY IN ORGANIZED ASSEMBLIES .27. HYDROPHOBIC AND ENTROPIC FACTORS IN THE SOLUBILIZATION OF IONIC SUBSTRATES IN MICELLES - EFFECTS OF TEMPERATURE, SURFACTANT CHAIN-LENGTH, AND ADDED SURFACTANTS [J].

BONILHA, JBS ;

FOREMAN, TK ;

WHITTEN, DG .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1982, 104 (15) :4215-4220

[2]

CHEN L, UNPUB JACS

[3] Highly sensitive biological and chemical sensors based on reversible fluorescence quenching in a conjugated polymer [J].

Chen, LH ;

McBranch, DW ;

Wang, HL ;

Helgeson, R ;

Wudl, F ;

Whitten, DG .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1999, 96 (22) :12287-12292

[4] Super quenching behavior between a conjugated polymer and molecular quenchers and its application in biological/chemical sensors [J].

Chen, LH ;

McBranch, D ;

Whitten, D .

ADVANCED MATERIALS AND OPTICAL SYSTEMS FOR CHEMICAL AND BIOLOGICAL DETECTION, 1999, 3858 :32-39

[5] Spontaneous formation of vesicles from complexes of block ionomers and surfactants [J].

Kabanov, AV ;

Bronich, TK ;

Kabanov, VA ;

Yu, K ;

Eisenberg, A .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (38) :9941-9942

[6] Complex formation between polyelectrolytes and ionic surfactants [J].

Kuhn, PS ;

Levin, Y ;

Barbosa, MC .

CHEMICAL PHYSICS LETTERS, 1998, 298 (1-3) :51-56

[7] Self assembled polyelectrolyte - Surfactant complexes in nonaqueous solvents and in the solid state [J].

MacKnight, WJ ;

Ponomarenko, EA ;

Tirrell, DA .

ACCOUNTS OF CHEMICAL RESEARCH, 1998, 31 (12) :781-788

[8] Control of energy transfer in oriented conjugated polymer-mesoporous silica composites [J].

Nguyen, TQ ;

Wu, JJ ;

Doan, V ;

Schwartz, BJ ;

Tolbert, SH .

SCIENCE, 2000, 288 (5466) :652-656

[9] HYDROPHOBIC-HYDROPHILIC INTERACTIONS IN SODIUM DODECYL-SULFATE MICELLES - STILBENE-VIOLOGEN COMPLEX-FORMATION AS A PROBE OF THE MICELLE INTERIOR [J].

RUSSELL, JC ;

WHITTEN, DG ;

BRAUN, AM .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1981, 103 (11) :3219-3220

[10] PHOTOCHEMICAL REACTIVITY IN ORGANIZED ASSEMBLIES .17. PHOTOCHEMISTRY OF A SURFACTANT STILBENE IN ORGANIZED MEDIA - A PROBE FOR HYDROPHOBIC SITES IN MICELLES, VESICLES, AND OTHER ASSEMBLIES [J].

RUSSELL, JC ;

COSTA, SB ;

SEIDERS, RP ;

WHITTEN, DG .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1980, 102 (17) :5678-5679