Issue 36, 2007
From the journal:

Dalton Transactions

A turn-on fluorescent indicator for citrate with micromolar sensitivity†

M. Isabel Burguete,a   Francisco Galindo,*a   Santiago V. Luis*a  and  Laura Vigaraa  

* Corresponding authors

a Departamento de Química Inorgánica y Orgánica, Unidad Asociada de Materiales Orgánicos Avanzados (UAMOA), Escuela Superior de Tecnología y Ciencias Experimentales, Universitat Jaume I-CSIC, Avda. Sos Baynat, s/n, E-12071, Castellón, Spain
E-mail: francisco.galindo@uji.es (F.G.), luiss@uji.es (S.V.L.)
Fax: +34 964 728214
Tel: +34 964 728751

Abstract

A turn-on fluorescent indicator for citric acid (citrate) has been developed, displaying high emission enhancement (+1500%) and low interference by other carboxylates. The sensor is based on the non-emissive copper(II) complex of a fluorescent amino amide, which, upon addition of citrate decomplexates to yield the emissive ligand. The detection limit estimated for this new chemosensing system is about 0.5 µM. This novel approach to the analysis of citrate constitutes an alternative ca. 102–103 times more sensitive than the standard method based on the enzyme citrate lyase.

Graphical abstract: A turn-on fluorescent indicator for citrate with micromolar sensitivity

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Article information

DOI
https://doi.org/10.1039/B711139H
Article type
Paper
Submitted
20 Jul 2007
Accepted
02 Aug 2007
First published
21 Aug 2007

Dalton Trans., 2007, 4027-4033

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A turn-on fluorescent indicator for citrate with micromolar sensitivity

M. I. Burguete, F. Galindo, S. V. Luis and L. Vigara, Dalton Trans., 2007, 4027 DOI: 10.1039/B711139H

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