Publications

Matériaux

Coating gold nanorods with silica prevents the generation of reactive oxygen species under laser light irradiation for safe biomedical applications

Gold nanoparticles can produce reactive oxygen species (ROS) under the action of ultrashort pulsed light. While beneficial for photodynamic therapy, this phenomenon is prohibitive for other biomedical applications such as imaging, photo-thermal drug…

Sarra Mitiche, Syrine Gueffrache, Sylvie Marguet, Jean-Frédéric Audibert, Robert Bernard Pansu, Bruno Palpant

Journal of materials chemistry‎ B - 2022

Chimie

FRET-mediated quenching of BODIPY fluorescent nanoparticles by methylene blue and its application to bacterial imaging

High resolution and good signal to noise ratio is a requirement in cell imaging. However, after labelling with fluorescent entities, and besides several washing steps, there is often an unwanted fluorescent background that reduces the images…

Yang Si, Chloé Grazon, Gilles Clavier, Jean-Frédéric Audibert, Bianca Sclavi, Rachel Meallet-Renault

Photochemical & Photobiological Sciences - 2022

Chimie

Is it possible to ”simply” predict the photoejection of a cation? Example of azacrown-substituted [(bpy)Re(CO) 3 L] + complexes

In the context of designing efficient photocontrolled ion-release systems, we propose a ”simple” computational strategy able to predict the cation photoejection. Our strategy is based on TD-DFT calculations and the analysis of the charge transfer …

Laure de Thieulloy, Clément Barois, Cédric Mongin, Isabelle Leray, Clément Guerrin, Stéphane Aloïse, Guy Buntinx, Aurélie Perrier

Journal of Photochemistry and Photobiology A: Chemistry - 2022

Chimie

Cyclometalated Rhodium and Iridium Complexes Containing Masked Catecholates: Synthesis, Structure, Electrochemistry, and Luminescence Properties

Two neutral cyclometalated rhodium and iridium coordination assemblies [(F2ppy)2M(η-Cat)], M = Rh, (2) and M = Ir, (3) (F2ppy: 2,4-difluorophenylpyridine), displaying a masked catecholate (η-Cat = η-O∧O) are described. The catecholate ligand is π…

Antoine Groué, Jean -Philippe Tranchier, Marie Noelle Rager, Geoffrey Gontard, Rémi Métivier, Olivier Buriez, Abderrahim Khatyr, Michael Knorr, Hani Amouri

Inorganic Chemistry - 2022

Sciences cognitives

Physiological synaptic activity and recognition memory require astroglial glutamine

Abstract Presynaptic glutamate replenishment is fundamental to brain function. In high activity regimes, such as epileptic episodes, this process is thought to rely on the glutamate-glutamine cycle between neurons and astrocytes. However the…

Giselle Cheung, Danijela Bataveljic, Josien Visser, Naresh Kumar, Julien Moulard, Glenn Dallérac, Daria Mozheiko, Astrid Rollenhagen, Pascal Ezan, Cédric Mongin, Oana Chever, Alexis-Pierre Bemelmans, Joachim Lübke, Isabelle Leray, Nathalie Rouach

Nature Communications - 2022

Polymères

Is it possible to maintain photomechanical properties of crystalline diarylethenes after thermal amorphization?

The photomechanical properties of the photochromic 1,2-bis(2,4-dimethyl-5-phenyl-3-thienyl)perfluorocyclopentene (DTE) crystals, largely documented since the discovery by Irie et al. of its reversible photoswitching of crystallographic plane…

Maroua Louati, Sophie Barrau, Jean-Francois Tahon, Arnaud Brosseau, Marumi Takao, Michinori Takeshita, Rémi Métivier, Guy Buntinx, Stephane Aloise

Journal of Molecular Structure - 2022

Autre

Développement de capteurs à fibre optique dédiés à la mesure in situ du pH du béton

D’importants volumes de matériaux cimentaires sont utilisés dans le secteur de l’industrie nucléaire, pour la conception des enceintes de confinement de réacteurs de centrales ou le stockage de déchets radioactifs en surface par exemple. L…

Ayedah Tariq

Chimie

Fur glowing under UV: a widespread consequence of porphyrin accumulation in mammals

Abstract Spectacular photoluminescence (PL) phenomena have been increasingly reported in various organisms from diverse ecosystems. However, the chemical basis of this PL remains poorly defined, and its potential ecological function is still blurry,…

Séverine Toussaint, Jasper Ponstein, Mathieu Thoury, Rémi Métivier, Daniela Kalthoff, Benoît Habermeyer, Roger Guilard, Steffen Bock, Peter Mortensen, Sverre Sandberg, Pierre Gueriau, Eli Amson

Autre

Synthesis and characterization of photoactivatable NADPH mimics

Le monoxyde d'azote (NO) est une molécule avec un rôle majeur de signalisation impliquée dans des processus biologiques variés. Impliqué dans la relaxation des muscles lisses induite par des dérivés nitrés, parmi lesquels certains sont utilisés…

Clément Polese

Chimie

INVITED CONFERENCE: Fluorescent nano-switches based on stimuli-responsive supramolecular interactions

L. Martin, D. Kamzabek, B. Chabaud, F. Sciortino, F. Miomandre, H. Bonnet, L. Guérente, D. Boturyn, R. Auzély, G. V. Dubacheva

Journées Annuelles SP2P - 2021