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Titolo:
Fluorescence study of some terbium-oligopeptide complexes in methanolic solution
Autore:
Rabouan, S; Delage, J; Durand, W; Prognon, P; Barthes, D;
Indirizzi:
UFR Med & Pharm, Chim Analyt Lab, F-86005 Poitiers, France UFR Med & Pharm Poitiers France F-86005 yt Lab, F-86005 Poitiers, France UFR Med & Pharm, Lab Biophys & Biomath, F-86005 Poitiers, France UFR Med &Pharm Poitiers France F-86005 iomath, F-86005 Poitiers, France Fac Sci Pharmaceut & Biol Paris Sud, Chim Analyt Lab, F-92290 Chatenay Malabry, France Fac Sci Pharmaceut & Biol Paris Sud Chatenay Malabry France F-92290 ance
Titolo Testata:
TALANTA
fascicolo: 4, volume: 51, anno: 2000,
pagine: 787 - 797
SICI:
0039-9140(20000403)51:4<787:FSOSTC>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
MILK-PROTEINS; PEPTIDES; COPPER(II); IONS; ABSORPTION; BEHAVIOR; ACID;
Keywords:
oligopeptides; terbium; complexes; luminescence;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Barthes, D UFR Med & Pharm, Chim Analyt Lab, BP 199, F-86005 Poitiers, France UFR Med & Pharm BP 199 Poitiers France F-86005 oitiers, France
Citazione:
S. Rabouan et al., "Fluorescence study of some terbium-oligopeptide complexes in methanolic solution", TALANTA, 51(4), 2000, pp. 787-797

Abstract

This study concerned the use of lanthanide chelates to detect glycyl-leucyl-phenylalanine (GLF) and its homologues. Spectroscopic analysis of peptides without or with terbium complexation revealed the formation of (LF)(3)(Tb)(2), (GF)(3)(Tb)(2), (GLF)(3)(Tb)(2) and (FL)(4)Tb, (FG)(4)Tb complexes with high stability constants in methanolic solutions (pK(d) > 13). Lanthanide chelate emission displayed a large Stokes shift (> 270 nm), which allowedTb chelates of GLF and its derivatives to be used for detection purposes. However, this preliminary study indicated some important limitations associated with lanthanide chelation, such as high methanolic content. (C) 1999 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/05/20 alle ore 15:10:09