How important is the quenching influence of the transition metal ions in the design of fluorescent PET sensors?

被引：39

作者：

Ramachandram, B ^{[1
]}

Samanta, A ^{[1
]}

机构：

[1] Univ Hyderabad, Sch Chem, Hyderabad 500046, Andhra Pradesh, India

来源：

CHEMICAL PHYSICS LETTERS | 1998年 / 290卷 / 1-3期

关键词：

D O I：

10.1016/S0009-2614(98)00454-0

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：

The fluorescence response of a nitrobenzoxadiazole fluorophore, attached to an amine receptor through a spacer unit, in the presence of a strongly quenching metal ion Cr3+ is reported, It is shown that the supramolecular system exhibits considerable enhancement of fluorescence in the presence of the metal ion, despite the quenching nature of the metal ion. This observation is rationalised in terms of the excited state lifetime of the fluorophore and the possible implication of this result in the design of fluorosensors for the quenching transition metal ions is discussed. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：9 / 16

页数：8

共 21 条

[1]

BISSELL RA, 1993, TOP CURR CHEM, V168, P223

[2] MOLECULAR FLUORESCENT SIGNALING WITH FLUOR SPACER RECEPTOR SYSTEMS - APPROACHES TO SENSING AND SWITCHING DEVICES VIA SUPRAMOLECULAR PHOTOPHYSICS [J].

BISSELL, RA ;

DE SILVA, AP ;

GUNARATNE, HQN ;

LYNCH, PLM ;

MAGUIRE, GEM ;

SANDANAYAKE, KRAS .

CHEMICAL SOCIETY REVIEWS, 1992, 21 (03) :187-195

[3] HETEROCYCLIC REARRANGEMENTS .V. REARRANGEMENT OF 4-ARYLAZO- AND 4-NITROSO-BENZOFUROXANS - NEW SYNTHESES FO BENZOTRIAZOLE AND BENZOFURAZAN RING SYSTEMS [J].

BOULTON, AJ ;

GHOSH, PB ;

KATRITZKY, AR .

JOURNAL OF THE CHEMICAL SOCIETY B-PHYSICAL ORGANIC, 1966, (10) :1004-+

[4]

Carter F. L., 1988, Molecular electronic devices, V1st

[5]

Czarnik A.W., 1993, INSTRUM SCI TECHNOL, DOI DOI 10.1080/10739149408001201

[6] CHEMICAL COMMUNICATION IN WATER USING FLUORESCENT CHEMOSENSORS [J].

CZARNIK, AW .

ACCOUNTS OF CHEMICAL RESEARCH, 1994, 27 (10) :302-308

[7]

CZARNIK AW, 1994, TOPICS FLUORESCENCE, V4

[8] Signaling recognition events with fluorescent sensors and switches [J].

de Silva, AP ;

Gunaratne, HQN ;

Gunnlaugsson, T ;

Huxley, AJM ;

McCoy, CP ;

Rademacher, JT ;

Rice, TE .

CHEMICAL REVIEWS, 1997, 97 (05) :1515-1566

[9] Ni(II), Cu(II), and Zn(II) cryptate-enhanced fluorescence of a trianthrylcryptand: A potential molecular photonic OR operator [J].

Ghosh, P ;

Bharadwaj, PK ;

Mandal, S ;

Ghosh, S .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (06) :1553-1554

[10] QUENCHING OF EXCITED SINGLET-STATES BY METAL-IONS [J].

KEMLO, JA ;

SHEPHERD, TM .

CHEMICAL PHYSICS LETTERS, 1977, 47 (01) :158-162

← 1 2 3 →