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Issue 7, 2013
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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 
Author affiliations

* 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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Publication details

The article was received on 24 Dec 2012, accepted on 17 Apr 2013 and first published on 22 Apr 2013


Article type: Edge Article
DOI: 10.1039/C3SC22325F
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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