A5043265442- Spectroscopy and Chemometric Analyses
- Spectroscopy Techniques in Biomedical and Chemical Research
- ZnO doping and properties
- Gas Sensing Nanomaterials and Sensors
- Atmospheric chemistry and aerosols
- GaN-based semiconductor devices and materials
- Advanced X-ray and CT Imaging
- Semiconductor materials and devices
- Atmospheric aerosols and clouds
- Advanced Radiotherapy Techniques
- Ga2O3 and related materials
- Radiation Dose and Imaging
- Thin-Film Transistor Technologies
- Medical Imaging Techniques and Applications
- Water Quality Monitoring and Analysis
- Atmospheric Ozone and Climate
- High-pressure geophysics and materials
- Advanced Chemical Sensor Technologies
- Polysaccharides and Plant Cell Walls
- Zeolite Catalysis and Synthesis
- Cardiac Imaging and Diagnostics
- Diamond and Carbon-based Materials Research
- Ionic liquids properties and applications
- Solid-state spectroscopy and crystallography
- Oil Spill Detection and Mitigation
Laboratoire de Spectroscopie pour les Interactions, la Réactivité et l'Environnement
2016-2025
Université de Lille
2016-2025
Centre National de la Recherche Scientifique
2014-2025
Levi Strauss (United States)
2019
Sorbonne Paris Cité
2017
Université Paris Cité
2017
Délégation Ile-de-France Villejuif
2017
Laboratoire d'Electrochimie Moléculaire
2017
Délégation Paris 7
2017
Elekta (United States)
2014-2015
The crystallization kinetics and the resulting structure morphology of polylactide (PLA) were investigated in presence carbon nanotubes (CNTs). Nanocomposite samples prepared by solution melt mixing present homogeneous filler dispersion, as observed scanning electron microscopy. Calorimetric characterization nonisothermal isothermal behavior analyzed according to Avrami's theory provides evidence significant impact CNTs on PLA matrix. nucleating effect nanofillers is confirmed Raman...
Among semiconductor nanomaterials, titanium dioxide is at the forefront of heterogeneous photocatalysis, but its catalytic activity greatly suffers from loss photoexcited charge carriers through deleterious recombination processes. Here, we investigate impact an external electric field (EEF) applied to conventional P25 TiO
X‐ray image intensifiers (XRIIs) have many applications in diagnostic imaging including acquisition of near‐real‐time projection images the intracranial and coronary vasculature. Recently, there has been some interest using this data to generate three‐dimensional (3‐D) computed tomographic (CT) reconstructions. The XRII x‐ray tube are rotated around object, acquiring sufficient for simultaneous reconstruction transverse slices. Three‐dimensional reconstructions compromised, however, if is...
Abstract Border-like cells are released by Arabidopsis (Arabidopsis thaliana) root tips as organized layers of several that remain attached to each other rather than completely detached from other, is usually observed in border many species. Unlike cells, cell attachment between border-like maintained after their release into the external environment. To investigate role wall polysaccharides and organization we have examined well-characterized mutants defective biosynthesis xyloglucan,...
The variable configuration of Raman spectroscopic platforms is one the major obstacles in establishing spectroscopy as a valuable physicochemical method within real-world scenarios such clinical diagnostics. For real world applications like diagnostic classification, models should ideally be usable to predict data from different setups. Whether it done by training rugged model with many setups or primary-replica strategy where are developed on 'primary' setup and test generated 'replicate'...
The capture of gaseous iodine has been deeply studied for trying to mitigate the dangers nuclear power energy. UiO family metal–organic framework (MOF) materials is considered as one best candidates such purposes since it couples high specific surface areas, facility be chemically modified, great adsorption capacity, and good stability under accidents conditions. UiO-66 was profoundly evaluated in several works trapping I2 by using different linkers metal contents. A transformation molecule...
Microscopic interactions of an imidazolium-based ionic liquid, 1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide (C2mimTFSI), with dimethyl sulfoxide (DMSO), methanol (MeOH), and acetonitrile (AN) have been analyzed by means Raman, attenuated total reflectance infrared (ATR-IR), (1)H (13)C NMR spectroscopy techniques. The magnitude the red-shift C(2)-H vibration mode imidazolium ring deshielding hydrogen carbon atoms, compared that other atoms or anion, indicated a strong...
The increasing interest in nanoscience many research fields like physics, chemistry, and biology, including the environmental fate of produced nano-objects, requires instrumental improvements to address sub-micrometric analysis challenges. originality our approach is use both super-resolution concept multivariate curve resolution (MCR-ALS) algorithm confocal Raman imaging surmount its limits characterize chemical components atmospheric aerosols at level individual particles. We demonstrate...
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Performance and reliability of wide bandgap high-power amplifiers are correlated with their thermal behavior. Thermal model development suitable temperature measurement systems necessary to quantify the channel devices in real operating conditions. As a direct within is most time not achievable, common approach measure device at different locations close hotspot then use simulations estimate temperature. This paper describes complete characterization AlGaN/gallium nitride (GaN) on silicon...
Abstract In this work, a detailed structural and spectroscopic study of nanocrystalline diamond (NCD) thin films grown by continuous bias assisted CVD growth technique is reported. This allows the tuning grain size phase purity in deposited material. The crystalline properties are characterized SEM, TEM, EELS, Raman spectroscopy. A clear improvement structure nanograined film observed for low negative voltages, while high voltages lead to consisting grains only ∼10 nm nanometer size, showing...
In the context of multivariate curve resolution (MCR) and spectral unmixing, essential information (EI) corresponds to most linearly dissimilar rows and/or columns a two-way data matrix. recent works, assessment EI has been revealed be very useful practical tool select relevant before MCR analysis, key features being speed compression ability. However, canonical approach relies on principal component analysis evaluate convex hull that encapsulates structure in normalized score space. This...
Abstract. Chemical composition, microphysical, and optical properties of atmospheric aerosol deep inland in the Negev Desert Israel are found to be influenced by daily occurrences sea breeze flow from Mediterranean Sea. Abrupt increases volume concentration shifts size distributions towards larger sizes, which associated with increase wind speed water content, were systematically recorded during summertime at a distance least 80 km coast. imaging samples showed an increased contribution...