A5074480181- Fusion materials and technologies
- Bone Tissue Engineering Materials
- Magnetic confinement fusion research
- Calcium Carbonate Crystallization and Inhibition
- Nuclear Materials and Properties
- Nuclear reactor physics and engineering
- Paleontology and Stratigraphy of Fossils
- Microstructure and mechanical properties
- Advanced Condensed Matter Physics
- Surface and Thin Film Phenomena
- Iron oxide chemistry and applications
- Semiconductor materials and devices
- Clay minerals and soil interactions
- Multiferroics and related materials
- Advanced Materials Characterization Techniques
- Graphene and Nanomaterials Applications
- Bone health and osteoporosis research
- Advanced Electron Microscopy Techniques and Applications
- Magnetic and transport properties of perovskites and related materials
- Semiconductor materials and interfaces
- Nanoparticles: synthesis and applications
- Advanced X-ray Imaging Techniques
- Skin Protection and Aging
- Enzyme Production and Characterization
- Bone health and treatments
Aix-Marseille Université
2016-2025
Centrale Marseille
2019-2023
Centre National de la Recherche Scientifique
2019-2023
Karlsruhe Institute of Technology
2023
Château Gombert
2023
Institut des Matériaux, de Microélectronique et des Nanosciences de Provence
2022
Instituto Nacional de Metrologia, Qualidade e Tecnologia
2010-2017
Laboratoire de Mathématiques d'Orsay
2017
Délégation Provence et Corse
2017
Universidade do Estado do Amazonas
2015
New 4th-generation synchrotron sources, with their increased brilliance, promise to greatly improve the performances of coherent X-ray microscopy. This perspective is major interest for crystal microscopy, which aims at revealing 3D crystalline structure matter nanoscale, an approach strongly limited by available flux. Our results, based on Bragg ptychography experiments performed first source, demonstrate possibility retrieving a high-quality image sample, unprecedented quality....
At the nanoscale, elastic strain and crystal defects largely influence properties functionalities of materials. The ability to predict structural evolution catalytic nanocrystals during reaction is primary importance for catalyst design. However, date, imaging characterising structure inside a nanocrystal in three-dimensions situ has remained challenge. We report here an unusual twin boundary migration process single platinum nanoparticle CO oxidation using Bragg coherent diffraction as...
Abstract Surface and near-surface morphology evolution of helium-irradiated tungsten due to thermal cycling up the ITER-relevant temperature 1350 K was studied using electron microscopy positron annihilation spectroscopy techniques. Holes at surface bubbles in recrystallized polycrystalline samples were created by 75 eV helium plasma irradiation with fluence 3 × 10 23 He m −2 1073 K. Subsequent annealing experiments combined a detailed analysis investigate shape density changes holes respect...
Two populations of dust particles were found during the first phase operation WEST. The one that dominates by size and weight comes from delamination tungsten coatings covering graphite tiles emission droplets molten materials off-normal events. Sizes vary several microns to tens microns. More generally, micron-sized due erosion all present in vacuum vessel collected. In addition, nanocavities at surface sampled after He plasmas attributed trapping form nanobubbles. Tungsten nanoparticles...
Several industries manufacture and process large quantities of engineered nanomaterials, thus increasing the potential for their environmental release during waste management disposal. Herein, we quantified spatial distribution titanium dioxide nanomaterials (TiO2 NMs) emitted from an industrial stream that flows into a nearby river. Two sampling campaigns were carried out on river in fall 2017 spring 2018 at selected sites upstream downstream Industrial Effluent urban wastewater treatment...
<title>Abstract</title> Lithium-ion batteries (LIBs) are extensively used for diverse applications including electric vehicles, hence resulting in an increasing number of end-of-life (EOL) LIBs that require efficient disposal and recycling. Although there some established recycling processes cathode materials, which the most expensive chemically complex components LIBs, a rapid identification technology chemical type is still needed to optimize We developed method combines X-ray fluorescence...
Sunscreens are emulsions of water and oil that contain filters capable protecting against the detrimental effects ultraviolet radiation (UV). The widespread use cosmetic products based on nanoparticulate UV has increased concerns regarding their safety compatibility with both environment human health. In present work, we evaluated titanium dioxide nanoparticle (TiO2 NP)-based three different surface coatings development immunity sea urchin, Paracentrotus lividus. A wide range NP...
Manufactured TiO2 nanoparticles are widely used in cosmetics as UV blockers. The environmental risk associated with these Engineered Nanomaterials (ENMs) strongly depends on their concentration, aggregation state, and surface chemistry. Controlling parameters the sunscreen formulation is crucial order to optimize ENMs content better understand fate, transport, toxicity at product's end-of-life. In present work, dispersion oil phase of four nanoparticulate filters having different coating...
In order to map the complex plasma footprint observed on lower divertor of WEST experiment after its first phase operation, we analysed deposits collected ITER-like Plasma Facing Units (PFUs) exposed in C3 (deuterium plasma) and C4 helium campaigns. Our results show that these have multilayer structures mainly composed tungsten, oxygen, boron carbon, whose texture composition vary along radial direction. These traits allowed us identify three types deposits: rich (conditioning) low flux area...
Tungsten disulfide nanosheets were successfully prepared by one-step chemical vapor deposition using tungsten oxide and thiourea in an inert gas environment. The size of the obtained was subsequently reduced down to below 20 nm width 150 length high-energy ball milling, followed 0.5 1 wt% graphene loading. corresponding vibrational structural characterizations are consistent with fabrication a pure WS
A existência de zonas monoespecíficas é característica no manguezal do rio Mucuri, BA, onde Laguncularia racemosa L. e Rhizophora mangle ocupam locais sob maior influência da maré Avicennia germinans está restrita a salinidade mais baixa. vegetação neste classificada em bosques ribeirinhos (margem rio) bacia (interior). Parâmetros físicos químicos sedimento suas relações com concentração dos nutrientes foliares foram associados à distribuição das espécies estudadas. Os resultados mostraram...