Lifetime-based sensing: Influence of the microenvironment

被引：43

作者：

Draxler, S ^{[1
]}

Lippitsch, ME ^{[1
]}

机构：

[1] KARL FRANZENS UNIV GRAZ,INST PHYS EXPTL,A-8010 GRAZ,AUSTRIA

来源：

ANALYTICAL CHEMISTRY | 1996年 / 68卷 / 05期

关键词：

D O I：

10.1021/ac9507092

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The influence of the microenvironment on the fluorescence behavior of indicator molecules is investigated. A model is developed to describe the fluorescence decay of indicator molecules in a nonuniform medium. Its consequences for fluorescence lifetime-based chemical sensors are discussed and verified in two examples, namely, a pH sensor using a pyrene compound in a hydrogel and a ruthenium complex for oxygen sensing embedded in a polystyrene membrane.

引用

页码：753 / 757

页数：5

共 23 条

[1]

[Anonymous], 1991, FIBER OPTIC CHEM SEN

[2] CONCENTRATION AND TIME-DEPENDENCE OF THE ENERGY-TRANSFER TO RANDOMLY DISTRIBUTED ACCEPTORS [J].

BLUMEN, A ;

MANZ, J .

JOURNAL OF CHEMICAL PHYSICS, 1979, 71 (11) :4694-4702

[3] LUMINESCENCE QUENCHING MECHANISM FOR MICROHETEROGENEOUS SYSTEMS [J].

CARRAWAY, ER ;

DEMAS, JN ;

DEGRAFF, BA .

ANALYTICAL CHEMISTRY, 1991, 63 (04) :332-336

[4] APPLICATIONS OF HIGHLY LUMINESCENT TRANSITION-METAL COMPLEXES IN POLYMER SYSTEMS [J].

DEMAS, JN ;

DEGRAFF, BA .

MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA, 1992, 59 :35-51

[5] LUMINESCENCE-BASED SENSORS - MICROHETEROGENEOUS AND TEMPERATURE EFFECTS [J].

DEMAS, JN ;

DEGRAFF, BA .

SENSORS AND ACTUATORS B-CHEMICAL, 1993, 11 (1-3) :35-41

[6] PH SENSORS USING FLUORESCENCE DECAY TIME [J].

DRAXLER, S ;

LIPPITSCH, ME .

SENSORS AND ACTUATORS B-CHEMICAL, 1995, 29 (1-3) :199-203

[7]

DRAXLER S, 1993, SENSOR ACTUAT B-CHEM, V11, P421, DOI 10.1016/0925-4005(93)85282-F

[8] EFFECTS OF POLYMER MATRICES ON THE TIME-RESOLVED LUMINESCENCE OF A RUTHENIUM COMPLEX QUENCHED BY OXYGEN [J].

DRAXLER, S ;

LIPPITSCH, ME ;

KLIMANT, I ;

KRAUS, H ;

WOLFBEIS, OS .

JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (10) :3162-3167

[9]

EFTINK MR, 1991, TOPICS FLUORESCENCE, V2

[10]

FORSTER T, 1949, Z NATURFORSCH A, V4, P321

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