Issue 7, 2013
From the journal:

Chemical Science

A water soluble probe with near infrared two-photon absorption and polarity-induced fluorescence for cerebral vascular imaging†

Julien Massin,a   Azzam Charaf-Eddin,b   Florence Appaix,c   Yann Bretonnière,a   Denis Jacquemin,*bd   Boudewijn van der Sanden,*c   Cyrille Monnereau*a  and  Chantal Andrauda  

* Corresponding authors

a Laboratoire de Chimie, UMR CNRS-5182, Université de Lyon, Université Claude Bernard, École Normale Supérieure de Lyon, 46 allée d'Italie, 69364 Lyon, France
E-mail: cyrille.monnereau@ens-lyon.fr
Tel: +33 472728860

b CEISAM, UMR CNRS 6230, Université de Nantes, 2 rue de la Houssinière, 44322 Nantes Cedex 3, France
Fax: +33 251125712
Tel: +33 251125564

c Grenoble Institute of Neuroscience (GIN), Inserm U 836 – Université Joseph Fourrier – CEA – CHU, Chemin Fortuné Ferrini, La Tronche Cedex, France

d Institut Universitaire de France, 103, bd Saint-Michel, F-75005 Paris Cedex 05, France

Abstract

A water soluble Lemke chromophore derivative shows an unusual polarity dependence of its emission efficiency, leading to strong red-NIR fluorescence in water when fitted with appropriate water-solubilizing polymer chains. In this edge article, the synthesis of the chromophore is described. The dependence of its fluorescence on solvent polarity is investigated experimentally and rationalized on the basis of ab initio calculations. Finally, we demonstrate that this chromophore is a valuable candidate for in vivo two-photon imaging of cerebral vasculature, with two-photon absorption and emission in the biological transparency window.

Graphical abstract: A water soluble probe with near infrared two-photon absorption and polarity-induced fluorescence for cerebral vascular imaging

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Article information

DOI
https://doi.org/10.1039/C3SC22325F
Article type
Edge Article
Submitted
24 Dec 2012
Accepted
17 Apr 2013
First published
22 Apr 2013

Chem. Sci., 2013,4, 2833-2843

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A water soluble probe with near infrared two-photon absorption and polarity-induced fluorescence for cerebral vascular imaging

J. Massin, A. Charaf-Eddin, F. Appaix, Y. Bretonnière, D. Jacquemin, B. van der Sanden, C. Monnereau and C. Andraud, Chem. Sci., 2013, 4, 2833 DOI: 10.1039/C3SC22325F

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