Publications

Génie chimique

Fluorescence lifetime imaging microscopy for in situ observation of the nanocrystallization of rubrene in a micro fluidic set up

A 3D hydrodynamic focusing microreactor was used to observe the in situ nanocrystallization of rubrene by fluorescence lifetime imaging (FLIM). The crystallization is achieved by a precipitation method based on the addition of a non-solvent. The…

Serge Desportes, Zenji Yatabe, Sébastien Baumlin, Valérie Génot, Jean-Pierre Lefèvre, Hideharu Ushiki, Jacques Delaire, Robert Bernard Pansu

Chemical Physics Letters - 2007

Chimie-Physique

A novel microfluidic flow-injection analysis device with fluorescence detection for cation sensing. Application to potassium

A microfabricated device has been developed for fluorimetric detection of potassium ions without previous separation. It is based on use of a fluorescent molecular sensor, calix–bodipy, specially designed to be sensitive to and selective for the…

Emilie Destandau, Jean-Pierre Lefèvre, Assia Chouai, Serge Desportes, Marie-Caroline Jullien, Rolland Hierle, Isabelle Leray, Bernard Valeur, Jacques A. Delaire

Analytical and Bioanalytical Chemistry - 2007

Chimie analytique

Synthesis of bispyrenyl sugar-aza-crown ethers as new fluorescent molecular sensors for Cu(II)

Two N-pyrenylacetamide-substituted sugar-aza-crown ethers have been synthesized as new fluorescent chemosensors. The designed ligands 1 and 2 exhibit fluorescence characteristics of a pyrene monomer and a dynamic excimer emission when compared to N…

Juan Xie, Mickaël Ménand, Stéphane Maisonneuve, Rémi Métivier

Journal of Organic Chemistry - 2007

Autre

Ingénierie moléculaire et fluorescence pour la reconnaissance de cations toxiques

Ce travail de thèse s'inscrit dans le cadre du programme Toxicologie Nucléaire Environnementale dont l'objectif est d'étudier les effets sur le vivant de différents métaux lourds ou radionucléides issus de l'industrie nucléaire. En particulier, il…

Vincent Souchon

ou physique

Solid-state fluorescence of new Bodipy derivatives: development of molecular nanosensors

Sophie Badré, Rachel Méallet-Renault, Emilie Dubuisson, Alain Ibanez, Robert Bernard Pansu, Heinz Langhals

International Conférence on Photochemistry 2007 - 2007

Chimie analytique

Fluorescence Lifetime Standards for Time and Frequency Domain Fluorescence Spectroscopy

A series of fluorophores with single-exponential fluorescence decays in liquid solution at 20 °C were measured independently by nine laboratories using single-photon timing and multifrequency phase and modulation fluorometry instruments with lasers…

Noël Boens, Wenwu Qin, Nikola Basaric, Johan Hofkens, Marcel Ameloot, Jean-Pierre Lefèvre, Bernard Valeur, Enrico Gratton, Martin Vandeven, Norberto D. Silvajr, Yves Engelborghs, Katrien Willaert, Alain Sillen, Garry Rumbles, David Phillips, Antonie J. W. G. Visser, Arie van Hoek, Joseph R. Lakowicz, Henryk Malak, Ignacy Gryczynski, Arthur G. Szabo, Don T. Krajcarski, Naoto Tamai, Atsushi Miura

Analytical Chemistry - 2007

Matériaux

Fluorescence patterning through photoinduced migration of squaraine-functionalized azo derivatives

New photochromic and fluorescent dyes are formed by covalently attaching emissive squaraine units to azo moieties. Illumination of doped matrices by light interference fringes provokes the reversible migration of the dyes and the formation of…

Li-Hong Liu, Keitaro Nakatani, Robert Bernard Pansu, Jean-Jacques Vachon, Patrick Tauc, Eléna Ishow

Advanced Materials - 2007

Biotechnologies

Molecular nanocrystals grown in sol-gel thin films for ultrabright chemical sensor applications

Polyaromatic dyes were used to synthesize molecular nanocrystals in sol-gel thin films for sensor applications. Fluorescence Confocal Microscopy (FCM) and Transmission Electron Microscopy (TEM) experiments showed the advantages of our…

Virginie Monnier, Nicolas Sanz, M. Bacia, R. Pansu, A. Ibanez

Photonics Europe - 2006

Architectures Matérielles

AN ACTIVE CHAOTIC MICROMIXER INTEGRATING THERMAL ACTUATION ASSOCIATING PDMS AND SILICON MICROTECHNOLOGY

Due to scaling laws, in microfluidic, flows are laminar. Consequently, mixing between two liquids is mainly obtained by natural diffusion which may take a long time or equivalently requires centimetre length channels. To reduce time and length for…

Olivier Français, Marie-Caroline Jullien, L. Rousseau, P. Poulichet, Serge Desportes, Assia Chouai, Jean-Pierre Lefèvre, Jacques Delaire

DTIP 2006 - 2006

Chimie-Physique

Synthesis, characterization and nonlinear optical properties in a series of new chiral organotin(IV) Schiff base complexes

Four new chiral organotin derivatives are reported with their crystal structure. They were synthesized by reaction of diphenyltin oxide and four different ligands obtained from the Schiff base condensation of 4-(diethylamino)salicylaldehyde and (1R…

Jose Maria Rivera, David Guzman, Mario Rodriguez, Jean François Lamère, Keitaro Nakatani, Rosa Santillan, Pascal G. Lacroix, Norberto Farfan

Journal of Organometallic Chemistry - 2006