Publications

Matériaux

Spectroscopy and hydrodynamics of nanoparticles in solution

Functionalized nanoparticles (NPs) receive interest for application in light-energy conversion, imaging and sensing, and photomedecine. Often, the particles are dispersed as individual entities in a liquid, in the ideal case behaving as a colloidal…

Martinus H. V. Werts, Clyde Midelet, Matthieu Loumaigne, Johanna Midelet, Antonios G. Kanaras, Anne Débarre

28th IUPAC Symposium on Photochemistry - 2022

Matériaux

Patterning Gold Nanorod Assemblies by Deep-UV Lithography

We present a new method to pattern assemblies of gold nanorods (GNRs) on substrates and a study of the near-field coupling induced by the aggregation of the nanoparticles. Combination of deep-UV lithography and controlled deposition of…

Céline Jégat, Edouard Rollin, Ludovic Douillard, Olivier Soppera, Keitaro Nakatani, Guillaume Laurent

Journal of Physical Chemistry C - 2022

Biophysique

Synthesis and Spectroscopic Characterization of Novel Thiourea-Bearing Photoactivatable NADPH Mimics Targeting NO Synthases

Abstract A new set of photoactivatable NADPH mimics bearing a thiourea linkage between a diarylbutadiene and an adenosine moiety functionalized by O-carboxymethyl groups has been designed and synthesized in a convergent strategy. These compounds…

Clément Polese, Eric Deprez, Patrick Tauc, Nicolas Bogliotti, Juan Xie

Synthesis: Journal of Synthetic Organic Chemistry - 2022

Chimie organique

Circularly Polarized Luminescence and Circular Dichroism of Bichromophoric Difluoroboron‐β‐diketonates: Inversion and Enhanced Chirality Based on Spatial Arrangements and Self‐Assembly

We synthesized two bichromophoric difluoroboron-β-diketonates (DFB) connected in para and meta positions by using cyclohexane diamine as a chiral bridge (para and meta (R/S)-CyDFB). TD-DFT calculations revealed that the variation in connectivity of…

Joy Ann Panis, Marine Louis, Arnaud Brosseau, Shouhei Katao, Florencio de los Reyes, Takuya Nakashima, Rémi Métivier, Clémence Allain, Tsuyoshi Kawai

Chemistry - A European Journal - 2022

Matériaux

Étude spectroscopique de matériaux hybrides photo-commutables et caractérisation d'auto-assemblages à propriétés exaltées de nanobâtonnets d'or par microscopie électronique

Le développement de systèmes hybrides combinant nanoparticules métalliques et molécules organiques est d'un intérêt majeur car ils présentent des propriétés optiques inédites grâce à la synergie entre ces composantes. De nombreux domaines peuvent en…

Céline Jégat

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, Aurelie Perrier

Journal of Photochemistry and Photobiology A: Chemistry - 2022

ou physique

Novel D–A chromophores with condensed 1,2,4-triazine system simultaneously display thermally activated delayed fluorescence and crystallization-induced phosphorescence

A new triazine acceptor unit is prepared and investigated together with common donors in D–A materials. With carbazole donors, changes in environment are able to elicit highly varied delayed emission behaviour.

Antonio Maggiore, Xiaofeng Tan, Arnaud Brosseau, Andrew Danos, Fabien Miomandre, Andrew Monkman, Pierre Audebert, Gilles Clavier

Physical Chemistry Chemical Physics - 2022

Chimie organique

Mechanofluorochromic Material toward a Recoverable Microscale Force Sensor

in optical properties upon application of mechanical stimuli such as scratching or grinding, promises applications for force sensors. [20-36] Emission changes of coordi nation complex crystals, [24] polymeric micro crystals, [30] and organic…

Jan Patrick Calupitan, Arnaud Brosseau, Pierre Josse, Clément Cabanetos, Jean Roncali, Rémi Métivier, Clémence Allain

Advanced Materials Interfaces - 2022

ou physique

Mechanofluorochromic Difluoroboron <i>β</i> ‐Diketonates Based Polymer Composites: Toward Multi‐Stimuli Responsive Mechanical Stress Probes

Developing mechano-responsive fluorescent polymers that exhibit distinct responses to distinct mechanical stresses requires a careful design of the fluorophore in order to tune its interactions with the polymer. A series of mechanofluorochromic (MFC…

Benjamin Poggi, Elliot Lopez, Rémi Métivier, Laurence Bodelot, Clémence Allain

Macromolecular Rapid Communications - 2022

Chimie

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-3thienyl)perfluorocyclopentene (DTE) crystals, largely documented since the discovery by Irie et al. of its reversible photoswitching of crystallographic plane…

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

Journal of Molecular Structure - 2022