Results 31 to 40 of about 587,711 (268)

Preserving Proton Resolution Under Cryogenic Dynamic Nuclear Polarization for Biomolecular Solid‐State NMR

Angewandte Chemie, EarlyView.
High‐resolution proton detection is preserved under cryogenic dynamic nuclear polarization (DNP) by combining fast MAS, extensive deuteration and selective methyl protonation. This strategy enables proton‐detected structural studies of biomolecular solids with enhanced sensitivity under DNP conditions.
James Tolchard, Tanguy Le Marchand, Nadia El Mammeri, Kshama Sharma, Ajit Kumar Bishoyi, Mélanie Berbon, Kristaps Jaudzems, Dorothea Wisser, Asen Daskalov, Sven J. Saupe, Jan Stanek, Zhiyu Sun, Olivier Ouari, Birgit Habenstein, Anne Lesage, Guido Pintacuda, Antoine Loquet   +16 more
wiley   +2 more sources

Le cours de chimie organique : licence, PASS, L.AS, CAPES

, 2020
National audienceCet ouvrage fait la synthèse en 210 fiches des nombreux domaines abordés en chimie organique dans les premières années d'études supérieures : structure des molécules, réaction chimique, fonctions et leur réactivité, biomolécules, chimie ...
Lopin-Bon, Chrystel, Garcia, Ludivine, Bellosta, Véronique, Rouden, Jacques, Chataigner, Isabelle, Harrison-Marchand, Anne, Lasne, Marie-Claire, Couty, François, Maddaluno, Jacques   +8 more
core   +1 more source

FORMAREA COMPETENŢELOR PRIN ABORDAREA AXIOLOGICĂ A PROBLEMELOR DE CHIMIE

Studia Universitatis Moldaviae: Stiinte ale Educatiei, 2013
În articol sunt examinate aspecte ce vizează implementarea curriculei la chimie în scopul formării competenţelor specifice de a rezolva probleme la chimie prin prisma abordării lor axiologice, urmărindu-se şi scopul formării la elevi a sistemului de ...
USM ADMIN
doaj  

Covalently Linked Peptides and Membrane Potential Enable CyaA Segment Translocation

Advanced Science, EarlyView.
Using a newly developed Droplet Interface Bilayer‐Pipette assay, the authors show that two segments of the CyaA toxin cross membranes by distinct mechanisms. One segment translocates spontaneously, whereas the translocation of the other depends on membrane potential.
Gaia Scilironi, Nicolas Carvalho, Jacinthe Frangieh, Corentin Léger, Dorothée Raoux‐Barbot, J. Iñaki Guijarro, Daniel Ladant, Sophie Cribier, Nicolas Rodriguez, Alexandre Chenal   +9 more
wiley   +1 more source

Titanium‐Catalyzed Defluorination of Poly(Vinyl Fluoride) and Poly(Vinylidene Fluoride) Under Friedel–Crafts Conditions

Angewandte Chemie, EarlyView.
Cationic titanium sandwich catalysts display exceptional activity in the hydrodefluorination of Csp3─F bonds, in the presence of silanes and aromatic solvents (turnover numbers up to 3000). As a result, they can be used to defluorinate challenging fluoropolymers, such as poly(vinyl fluoride) (PVF) or poly(vinylidene fluoride) (PVDF).
Louis Le Moigne, Marie Sircoglou, Quentin Bonnin, Marie‐José Penouilh, Joan Vignolle, Etienne Grau, Cédric Le Coz, Mélanie Bousquet, Paul Fleurat‐Lessard, Adrien T. Normand   +9 more
wiley   +2 more sources

Introduction à la chimie supramoléculaire - Concepts – Chimie hôte-invité

, 2018
International audienceDepuis la fin des années soixante, la chimie supramoléculaire est devenue unebranche multidisciplinaire de la chimie couvrant de vastes domaines d'investigation avecdes connexions fortes avec la biologie ou la science des matériaux.
Bucher, Christophe, Dutasta, Jean-Pierre
core   +1 more source

Assessing Mesoscale Heterogeneities in Hard Carbon Electrodes Through Deep Learning‐Assisted FIB‐SEM Characterization, Manufacturing and Electrochemical Modeling

Advanced Energy Materials, EarlyView.
A combination of discrete and finite element method models for the current collector deformation and electrochemical performance analysis, respectively. The models are calibrated and validated with electrochemical and imaging data of hard carbon electrodes. These electrodes were manufactured with different parameters (slurry solid contents of 35 and 40
Soorya Saravanan, Imelda Cardenas‐Sierra, Pei Sun, Hari Raj, Daniele Duranti, Mahnoor Nafees, Edoardo Rossi, Marco Sebastiani, Paul Vigneaux, Martin Petit, Maxime Moreaud, Francisco Fernandez, Alejandro A. Franco   +12 more
wiley   +1 more source

Role of Graphene Oxide in the Nucleation and Growth of Gold Nanoparticles Revealed by Operando Time‐Resolved Studies

Angewandte Chemie, EarlyView.
Graphene oxide accelerates AuCl4− reduction under irradiation and directs edge‐selective nucleation and quasi‐one‐dimensional organization of gold nanoparticles at oxygen‐rich boundaries. Operando SAXS and UV–vis spectroscopy, supported by pulse radiolysis and DFT, reveal how progressive conversion of GO to rGO removes interfacial constraints, shifting
Liran Hu, Carine Clavaguéra, Zhenpeng Cui, Zhiwen Jiang, Thomas Bizien, Filippo Ferdeghini, Nguyen‐Thi Van‐Oanh, Michel Goldmann, François Muller, Samy Remita   +9 more
wiley   +2 more sources

module chimie - Base de la chimie organique en Licence

, 2023
International audienceBases of organic chemistry in L1 levelBases de la chimie organique en Licence ...
Rolland, Marc, Rolland, Valérie
core  

From Top to Bottom: Manufacturing Process‐Context Aware Resolution of Energy Device Electrodes Through a 3D Diffusion Generative Model

Advanced Energy Materials, EarlyView.
The application of a generative diffusion model, enhanced with a training data augmentation pipeline retaining the manufacturing process context of electrode microstructures, leads to improved fidelity of the through‐plane tortuosity factor in the AI generated samples.
Victor Ramirez‐Camacho, Siwar Ben Hadj Ali, Maxence Desnoyers, Francisco Fernandez, Nassima Benammar, Alejandro A. Franco   +5 more
wiley   +1 more source