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Affichage des publications 51 à 60 sur 867 au total

Chimie

Positive Electrofluorochromism of BODIPY–Ferrocene Monolayers on ITO

A borondipyrromethene (BODIPY)–ferrocene dyad where both units are connected by an ethynylstyryl linker was synthesized, and its fluorescence and electrochemical and electrofluorochromic features were analyzed first in solution and then as a surface…

Julie Pham, Jean-Frédéric Audibert, Jad Rabah, Karen Wright, Jérôme Marrot, Minh-Huong Ha-Thi, Rachel Méallet-Renault, Emmanuel Allard, Fabien Miomandre

Journal of Physical Chemistry C -

Zoologie des vertébrés

Anthropogenic modification of a giant ground sloth tooth from Brazil supported by a multi-disciplinary approach

Identifying evidence of human modification of extinct animal remains, such as Pleistocene megafauna, is challenging due to the similarity of anthropogenic and non‐anthropogenic taphonomic features observed under optical microscopy. Here, we re…

Thaís R Pansani, Loïc Bertrand, Briana Pobiner, Anna K Behrensmeyer, Lidiane Asevedo, Mathieu Thoury, Hermínio I Araújo-Júnior, Sebastian Schöder, Andrew King, Mírian L. A. F. Pacheco, Mário A. T. Dantas

Scientific Reports -

Chimie

Be Clean, Be Green. Perceptions of “cleanliness” in the history and reflection on the cleaning treatments of silver in modern conservation practice

In modern conservation practice, cleaning is a regular treatment for heritage objects. It is executed with the aim of restoring their (perceived) original aesthetics and improving their legibility, while reinforcing their physical and chemical…

Han Zhou, Maartje Stols-Witlox, Loïc Bertrand

AHM Conference 2024: 'Heritage, Memory and Material Culture' -

ou physique

Photoejection–recapture of the Ca2+ cation studied by time resolved spectroscopy and TDDFT calculations: the case study of an azacrown–iridium(III) complex

In this study, we examined the photophysical properties of an azacrown–iridium(III) complex while focusing on its interactions with calcium ions (Ca2+). We explored the dynamic processes within the complex combining time-dependent density functional…

Clement Guerrin, L. de Thieulloy, Julien Dubois, Clément Barois, Aurélie Perrier, Isabelle Leray, Cedric Mongin, Stephane Aloise

New Journal of Chemistry -

Chimie

Archaeological mineralised textiles from the Iron Age tumulus of Creney-le-Paradis support its elite status

Les dégâts posés par le pillage et le labour au tumulus de Creney-le-Paradis (8e-5e avant J.-C.), en France, entravent l'interprétation de ce site potentiellement important. Néanmoins, l'application de nouvelles techniques de microtomographie en…

Clémence Iacconi, Elsa Desplanques, Christophe Moulherat, Maëva L'Héronde, Andrew King, Awen Autret, Sebastian Schöder, Barbara Fayard, Émilie Leccia, Loïc Bertrand

Antiquity -

Chimie

Thermodynamics of Oiling-Out in Antisolvent Crystallization. II. Diffusion toward Spinodal Decomposition

The extensive use of antisolvent crystallization for poorly soluble chemicals is hindered by oiling-out. This study delves into solute diffusion kinetics upon antisolvent addition. We conducted time-dependent simulations on a hypothetical…

Zhengyu Zhang, Jean-Frédéric Audibert, Weixi Wang, Valérie Génot, Soo Young Park, Anne Spasojević-de Biré, Robert Pansu

Crystal Growth & Design -

Chimie

Photoswitchable glycoligands targeting Pseudomonas aeruginosa LecA

Biofilm formation is one of main causes of bacterial antimicrobial resistance infections. It is known that the soluble lectins LecA and LecB, produced by Pseudomonas aeruginosa , play a key role in biofilm formation and lung infection. Bacterial…

Yu Fan, Ahmed El Rhaz, Stéphane Maisonneuve, Emilie Gillon, Maha Fatthalla, Franck Le Bideau, Guillaume Laurent, Samir Messaoudi, Anne Imberty, Juan Xie

Beilstein Journal of Organic Chemistry -

Instrumentations et Détecteurs

Ratiometric fiber optic fluorescent pH sensor for hydroxide diffusion measurements in concrete

This article delineates the development of an advanced ratiometric pH optode designed for protracted monitoring of pH dynamics in cementitious materials—a crucial aspect of structural management. The optode features a dual-layer Hydromed™ D4 polymer…

Ayedah Tariq, Rasta Ghasemi, Jean Pierre Lefevre, Cédric Mongin, Alexandre Dauzères, Isabelle Leray

Sensors and Actuators B: Chemical -

Virologie

Chikungunya infection in returned travellers: results from the geosentinel network, 2005–2020

Abstract Background Chikungunya is an important travel-related disease because of its rapid geographical expansion and potential for prolonged morbidity. Improved understanding of the epidemiology of travel-related chikungunya infections may…

Rachel Bierbrier, Emilie Javelle, Francesca Norman, Lin Hwei Chen, Emmanuel Bottieau, Eli Schwartz, Karin Leder, Kristina Angelo, Rhett Stoney, Michael Libman, Davidson Hamer, Ralph Huits, Bradley Connor, Fabrice Simon, Sapha Barkati

Journal of Travel Medicine -

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