Actualités
- Des neutrons assurés jusqu’en 2033 à l’ILL ! Le fonctionnement du réacteur à haut flux de l’ILL est désormais assuré jusqu’en décembre 2033. Toutes les informations disponibles sur le site de l’ILL
Prochaines dates limites :
- ILL – appel à propositions : 15 septembre 2025
- 2FDN – appel à propositions : 15 octobre 2025
Actualité scientifique du mois
Design of Thermo-Responsive Self-Assembly of PEGylated Fatty Acids: Switching Reversibly from Tubes or Vesicles to Micelles at Physiological Temperature
In drug delivery, it is of utmost importance to render the nanocarriers “stealth” in order to prevent protein adsorption from physiological fluids, otherwise a protein corona will grow rapidly around them and will drive their in vivo biological fate. To this goal, the most widespread strategy consists in decorating nanocarriers with a protective polymeric shell of poly(ethylene glycol) (PEG) chains.
We present here a simple and robust one-pot route to design thermo-responsive PEGylated self-assemblies of fatty acids into two morphology types at room temperature, multi-lamellar tubes or vesicles, which transit reversibly upon heating into small ellipsoidal micelles around physiological temperature, as demonstrated by Small Angle Neutron Scattering. It is based on the controlled insertion of various PEG chains end-capped by fatty acid moieties into self-assemblies of 12-hydroxy stearic acid, a bio-based green surfactant.
Offres d’emploi
Si vous avez une offre d’emploi, n’hésitez pas à nous la faire parvenir, nous la diffuserons.
- PhD position, ISTerre & ILL, Grenoble : Understanding Mineral Nucleation under Confinement
- Poste de technicien du diffractomètre SAM du Laboratoire Léon Brillouin (CEA-CNRS) site de Grenoble
Evènements à venir
Voir aussi https://neutronsources.org/calendar.html.
- Journées de la Diffusion Neutronique, lac d’Annecy, Sévrier 2-5 juin 2025.
- Advanced Schools Training in Neutron Techniques (TNT) organized by the Italian Society of Neutron Spectroscopy (SISN), in San Giovanni (Valle Aurina, BZ) from June 13 to 21, 2025.
Atelier SAXS/SANS, Traitement des données et Modélisation, 17,18 et 19 juin à Lyon. Inscription gratuite pour les académiques mais obligatoire, avant le 2 juin.
Next KFN neutron webinar : High Current Accelerator-driven Neutron Sources –
The HBS project for a next generation neutron facility, Dr. Paul Zakalek
(JCNS-2/JCNS-HBS). Friday, 27 June 2025, 11:00 – 12:00- ILL Soft Matter Summer School will take place from 1st to 3rd July 2025 at the Institut Laue-Langevin, Grenoble, France
- ICNS, 6-10th July 2025, Copenhagen.
- Workshop on tools for analysis of coherent excitations, Jul 11th 2025, Copenhagen, Denmark
- 27th Laboratory Course on Neutron Scattering organized by the Jülich Centre for Neutron Science (JCNS), from August 25 to September 5, 2025
- Neutron4: Heritage Science, Sept 9-12th 2025, Bosco Chiesanuova, Italy.
- Rencontres de Chimie Physique (RCP 2025), Aussois, 15-17 septembre 2025
Publications du mois
Merci de nous signaler les publications récentes qui ont échappé à nos recherches. Nous les ajouterons.
- Paramagnetic fluctuations of the magnetocaloric compound MnFe4Si3
Biniskos, N. and Schmalzl, K. and Persson, J. and Raymond, S.
PHYSICAL REVIEW B - Thermodynamics of the dipole-octupole pyrochlore magnet Ce2Hf2O7 in applied magnetic fields
Bhardwaj, Anish and Poree, Victor and Yan, Han and Gauthier, Nicolas and Lhotel, Elsa and Petit, Sylvain and Quilliam, Jeffrey A. and Nevidomskyy, Andriy H. and Sibille, Romain and Changlani, Hitesh J.
PHYSICAL REVIEW B - Modulation of the modulated magnetic structure of an Ho i-MAX phase described by a magnetic (3+2)-dimensional superspace group. Corrigendum.
Colin, Claire V and Opagiste, Christine and Ouisse, Thierry and Petříček, Václav
Acta Crystallogr B Struct Sci Cryst Eng Mater - Cationic disorder effect on the structural and magnetic properties in SmCr1-xFexTiO5
Martin, Christine and Bolletta, Juan P. and Kobzi, Balazs and Fauth, Francois and Nassif, Vivian and Suard, Emmanuelle and Kurbakov, Alexander I. and Jouen, Samuel and Nachbaur, Virginie and Maignan, Antoine
JOURNAL OF MATERIALS CHEMISTRY C - Material characterization methods for investigating charge storage processes in 2D and layered materials-based batteries and supercapacitors.
de Kogel, Albert and Wang, Ruocun John and Tsai, Wan-Yu and Tobis, Maciej and Zhao, Evan Wenbo and Fleischmann, Simon
Nanoscale - What can studies of the pair-distribution functions (PDF) contribute to our knowledge about UO2?
Desgranges, Lionel and Fischer, Henry E. and Lander, Gerard H. and Baldinozzi, Gianguido
MRS COMMUNICATIONS - Multi-modal characterization of the B2 phase in the Ta-Re binary system
Crossman, Bryan J. and Wang, Junxin and Perriere, Loic and Chen, Si Athena and Couzinie, Jean-Philippe and Ghazisaeidi, Maryam and Mills, Michael J.
ACTA MATERIALIA - Multi-scale characterization of the hydromechanical behavior of a heterogeneous porous sandstone using neutron and X-ray tomographies
Lima, Fernando Vieira and Hall, Stephen and Engqvist, Jonas and Tudisco, Erika and Woracek, Robin and Tengattini, Alessandro and Couture, Cyrille
ACTA GEOTECHNICA - Influence of Grafting Density and the Ionic Environment on the Structure of Zwitterionic Brushes
Witte, Judith and Koutsioubas, Alexandros and Micciulla, Samantha and Stingaciu, Laura Roxana and Paulin, Mariano Andres and Dahl, Margarethe and Fettkenhauer, Christian and Lahann, Joerg and Holderer, Olaf and Wellert, Stefan
ACS APPLIED POLYMER MATERIALS - Temperature-Resolved Crystal Structure of Ethylene Carbonate
Westphal, Lea and Kochetov, Vladislav and Baran, Volodymyr and Ho”lderle, Tobias and Avdeev, Maxim and Diadkin, Vadim and Marshall, Kenneth and Scho”kel, Alexander and Opri, Klaudia and Niewa, Rainer and Porcher, Florence and Muller-Buschbaum, Peter and Senyshyn, Anatoliy
JOURNAL OF PHYSICAL CHEMISTRY C - Synthesis of a Double-Hydrophilic Block Copolymer with a Multifunctional Block: Spontaneous Formation of Polyion Complex Micelles from a Single Cationic-Anionic Copolymer
Unnikrishnan, Ananthapadmanabhan and Rodolfo, Mateus Garcia and Mahmoudi, Najet and Rydzek, Gaulthier and Schmitt, Julien and Schweins, Ralf and Gerardin, Corine
MACROMOLECULES - Unlocking complexity through neutron scattering: Structure and dynamics of protein-polymer conjugates
Russo, Daniela and Wurm, Frederik and Teixeira, Jose
PROTEIN SCIENCE
MORE ARTICLES OF INTEREST
- Material characterization methods for investigating charge storage processes in 2D and layered materials-based batteries and supercapacitors
de Kogel, Albert and Wang, Ruocun (John) and Tsai, Wan-Yu and Tobis, Maciej and Leiter, Robert and Luo, Ruipeng and Zhao, Evan Wenbo and Fleischmann, Simon and Wang, Xuehang - A new neutron area monitor with extended energy range
Russo, L. and Bedogni, R. and Caballero-Pacheco, M. A. and Castro-Campoy, A. I. and Frigi, F. L. and Pietropaolo, A. and Calamida, A. and Gomez-Ros, J. M. and Turchi, S. and Allaoua, A. and Ducasse, Q. and Magalotti, N. and Pozzi, F.
EUROPEAN PHYSICAL JOURNAL PLUS