Issue 3, 2006
From the journal:

Photochemical & Photobiological Sciences

Fluorescent nanoparticles as selective Cu(ii) sensors†

Rachel Méallet-Renault,*a   Alexandre Hérault,a   Jean-Jacques Vachon,a   Robert B. Pansu,a   Sonia Amigoni-Gerbierb  and  Chantal Larpentb  

* Corresponding authors

a Laboratoire de Photophysique et Photochimie Supramoléculaires et Macromoléculaires, CNRS UMR 8531, Ecole Normale Supérieure de Cachan, 61 avenue du Président Wilson, Cachan Cedex, France
E-mail: rachelm@ppsm.ens-cachan.fr, pansu@ppsm.ens-cachan.fr

b SIRCOB UMR CNRS 8086, Université Versailles Saint-Quentin en Yvelines, 45 avenue des Etats-Unis, Versailles Cedex, France
E-mail: larpent@chimie.uvsq.fr

Abstract

Latex nanoparticles functionalized with cyclam (1,4,8,11-tetraazacyclotetradecane), a copper chelator, have been doped with a fluorescent dye 1 (BODIPY derivative: 4,4-difluoro-8-(2′,4′,6′-trimethyl)phenyl-2,6-diethyl-1,3,5,7-tetramethyl-4-bora-3a,4a-diaza-s-indacene). The bulky, hydrophobic fluorophore 1 dissolves within the nanoparticles' polymer core up to a concentration of about 88.4 µmol g−1. At this concentration the fluorescence yield is about 0.80. Adding Cu2+ ions to the solution decreases the fluorescence because of the energy transfer between the dye and the violet copper cyclam complexes. The response is fast: 90% of the quenching occurs within 1 s. The Cu2+ detection threshold is of 1 nanomolar. No interferences were observed with zinc and nickel ions.

Graphical abstract: Fluorescent nanoparticles as selective Cu(ii) sensors

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/B513215K
Article type
Paper
Submitted
19 Sep 2005
Accepted
23 Nov 2005
First published
20 Dec 2005

Photochem. Photobiol. Sci., 2006,5, 300-310

Permissions

Request permissions

Fluorescent nanoparticles as selective Cu(II) sensors

R. Méallet-Renault, A. Hérault, J. Vachon, R. B. Pansu, S. Amigoni-Gerbier and C. Larpent, Photochem. Photobiol. Sci., 2006, 5, 300 DOI: 10.1039/B513215K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements