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Affichage des publications 181 à 190 sur 871 au total

Chimie organique

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 -

ou physique

4,4’-Dimethylazobenzene as a Chemical Actinometer

Chemical actinometers are a useful tool in photochemistry, which allows to measure the photon flux of a light source to carry out quantitative analysis on photoreactions. The most commonly employed actinometers so far show minor drawbacks, such as…

Lorenzo Casimiro, Leonardo Andreoni, Jessica Groppi, Alberto Credi, Rémi Métivier, Serena Silvi

Photochemical & Photobiological Sciences -

Héritage culturel et muséologie

Application of Synchrotron Radiation-Based Micro-Analysis on Cadmium Yellows in Pablo Picasso's Femme

The cultural heritage community is increasingly exploring synchrotron radiation (SR) based techniques for the study of art and archaeological objects. When considering heterogeneous and complex micro-samples, such as those from paintings, the…

Marta Ghirardello, Victor Gonzalez, Letizia Monico, Austin Nevin, Douglas Maclennan, Catherine Schmidt Patterson, Manfred Burghammer, Matthieu Réfrégiers, Daniela Comelli, Marine Cotte

Microscopy and Microanalysis -

Art et histoire de l'art

The “Historical Materials BAG”: A New Facilitated Access to Synchrotron X-ray Diffraction Analyses for Cultural Heritage Materials at the European Synchrotron Radiation Facility

The European Synchrotron Radiation Facility (ESRF) has recently commissioned the new Extremely Brilliant Source (EBS). The gain in brightness as well as the continuous development of beamline instruments boosts the beamline performances, in…

Marine Cotte, Victor Gonzalez, Frederik Vanmeert, Letizia Monico, Catherine Dejoie, Manfred Burghammer, Loïc Huder, Wout de Nolf, Stuart Fisher, Ida Fazlic, Christelle Chauffeton, Gilles Wallez, Núria Jiménez, Francesc Albert-Tortosa, Nati Salvadó, Elena Possenti, Chiara Colombo, Marta Ghirardello, Daniela Comelli, Ermanno Avranovich Clerici, Riccardo Vivani, Aldo Romani, Claudio Costantino, Koen Janssens, Yoko Taniguchi, Joanne Mccarthy, Harald Reichert, Jean Susini

Molecules -

Héritage culturel et muséologie

X-ray Raman Scattering: A Hard X-ray Probe of Complex Organic Systems

This paper provides a review of the characterization of organic systems via X-ray Raman scattering (XRS) and a step-by-step guidance for its application. We present the fundamentals of XRS required to use the technique and discuss the main…

Rafaella Georgiou, Christoph Sahle, Dimosthenis Sokaras, Sylvain Bernard, Uwe Bergmann, Jean-Pascal Rueff, Loïc Bertrand

Chemical Reviews -

Physique

Selective population of triplet excited states in heavy-atom-free BODIPY-C60 based molecular assemblies

Photophysical studies on a BODIPY-fullerene-distyryl BODIPY triad (BDP-C60-DSBDP) and its reference dyads (BODIPY-fullerene; BDP-C60 and distyryl BODIPY-fullerene; DSBDP-C60) are presented herein. In the triad, the association of the two chromophore…

Anam Fatima, Jad Rabah, Emmanuel Allard, Hélène Fensterbank, Karen Wright, Gotard Burdzinski, Gilles Clavier, Michel Sliwa, Thomas Pino, Rachel Méallet-Renault, Karine Steenkeste, Minh-Huong Ha-Thi

Photochemical & Photobiological Sciences -

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 -

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

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