28 research outputs found
The importance of endo-lysosomal escape with lipid nanocapsules for drug subcellular bioavailability
Binary thin films deposited by ion beams: simple estimate of the near surface and bulk composition
Binary thin films deposited by ion beams: simple estimate of the near surface and bulk composition
Project 2: CREATIVE (comprendre, respecter, écouter l’autre : travailler, imaginer pour vivre ensemble), a cluster randomized intervention study to improve attitudes towards children with disabilities in a school setting
Analytical and electrochemical study of passive films formed on nickel—chromium alloys: Influence of the chromium bulk concentration
Depth composition and chemical states of elements constituting the overlayers of NixCr alloys (x = 0–30 at.%) passivated in borate buffer solutions (pH = 9.2) were determined as a function of the chromium bulk content of the alloy. Depth sputter profiling was performed using both Auger electron spectroscopy (AES) and low energy ion scattering spectroscopy (LEIS). Chemical bonding and (oxy‐hydroxy) structures of alloying elements in the passive films were investigated by x‐ray photoelectron spectroscopy (XPS). The electrochemical study mainly consists in establishing the cathodic reduction kinetics of the passive layers to characterize the resistance of the internal Cr2O3 barrier to reduction. Very thin films (less than 2.5 nm) were obtained in those conditions showing duplex structures where minor external nickel oxy‐hydroxide layers are depicted covering an inner protective barrier mainly composed of chromium oxide Cr2O3. Only at high bulk chromium contents (> 15 at.%) are complete Cr2O3 layers built at the interface with the metallic alloy. Beneath the film, in the underlying matrix, a metallic nickel enrichment combined with a chromium depletion is observed, which seems to confirm, as for FeCr alloys, a mechanism by which Cr oxidizes preferentially in this medium during the first steps of the film growth
Phénotype et pronostic des atteintes systémiques induites sous inhibiteurs de check-points immunitaires
International audienc
MUREX : une campagne de mesure pour l'étude du cycle annuel des bilans hydrique et énergétique
National audienc
MUREX : une campagne de mesure pour l'étude du cycle annuel des bilans hydrique et énergétique
National audienc