Publications

ou physique

Détecter le polluant dans l'air et dans l'eau

La diversité des polluants dans l'air et dans l'eau est telle qu'il ne peut exister de méthode universelle de mesure. Les méthodes de détection et de qualification des polluants doivent être ajustables aux milieux cibles. Pour les grands espaces,…

T.-T. Tran-Thi, P. Chazette, R. Dagnelie, J. Kasparian, Isabelle Leray, L. Magne, H. Paolacci, B. Valeur

L'Actualité Chimique - 2007

Chimie-Physique

Realignment process of actin stress fibers in single living cells studied by focused femtosecond laser irradiation

Three-dimensional dissection of a single actin stress fiber in a living cell was performed based on multi-photon absorption of a focused femtosecond laser pulse. The realignment process of an actin stress fiber was investigated after its direct…

Ryohei Yasukuni, Jean-Alexis Spitz, Rachel Méallet-Renault, Takayuki Negishi, Takuji Tada, Yoichiroh Hosokawa, Tsuyoshi Asahi, Chisa Shukunami, Yuji Hiraki, Hiroshi Masuhara

Applied Surface Science - 2007

Chimie organique

Highly selective and sensitive phosphane sulfide derivative for the detection of Hg2+ in organoaqueous medium

Minh-Huong Ha-Thi, M. Penhoat, V. Michelet, Isabelle Leray

Organic Letters - 2007

Science des matériaux

Silica coated nanoparticles: synthesis,magnetic properties and spin structure

In the recent years, magnetic nanoparticles have been extensively studied for their superparamagnetic properties providing useful labels in biology or for fundamental aspects including the size dependence of magnetic atomic moment and the effect of…

Frederic Mazaleyrat, Mehdi Ammar, Martino Lobue, Jean-Pierre Bonnet, Pierre Audebert, Guillaume Wang, Y. Champion, Martin Hÿtch, Etienne Snoeck

ISMANAM - 2007

Chimie-Physique

Electronic Excitation Energy Transfer between Two Single Molecules Embedded in a Polymer Host

Unidirectional electronic excitation energy transfer from a photoexcited donor chromophore to a ground state acceptor chromophore—both linked by a rigid bridge—has been investigated by low temperature high-resolution single molecule spectroscopy…

Rémi Métivier, Fabian Nolde, Klaus Mullen, Thomas Basche

Physical Review Letters - 2007

Chimie-Physique

Assessment of cellular actin dynamics by measurement of fluorescence anisotropy

To study cellular actin dynamics, a cell-free assay based on fluorescence anisotropy was developed. Using G-actin-Alexa as a probe, we found that anisotropy enhancement reflects F-actin elongation. Anisotropy enhancement varies with the…

Jean-Alexis Spitz, Valérie Polard, Andrei V. Maksimenko, Frédéric Subra, Catherine Baratti-Elbaz, Rachel Méallet-Renault, Robert Bernard Pansu, Patrick Tauc, Christian Auclair

Analytical Biochemistry - 2007

Optique

Excitation transfer and luminescence in porphyrin-carbon nanotube complexes

Functionalization of carbon nanotubes with hydrosoluble porphyrins (TPPS) is achieved by "$\pi$-stacking". The porphyrin/nanotube interaction is studied by means of optical absorption, photoluminescence and photoluminescence excitation…

Gurvan Magadur, Jean‐sébastien Lauret, Valérie Alain-Rizzo, C. Voisin, Ph. Roussignol, Emmanuelle Deleporte, Jacques Delaire

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