A5062245513- Nanoparticles: synthesis and applications
- Nanofabrication and Lithography Techniques
- Advancements in Photolithography Techniques
- TiO2 Photocatalysis and Solar Cells
- Semiconductor materials and devices
- Dental materials and restorations
- Advanced Photocatalysis Techniques
- Fuel Cells and Related Materials
- Photopolymerization techniques and applications
- Force Microscopy Techniques and Applications
- Microplastics and Plastic Pollution
- Advanced Surface Polishing Techniques
- Additive Manufacturing and 3D Printing Technologies
- Advancements in Solid Oxide Fuel Cells
- Chemistry and Chemical Engineering
- Nanotechnology research and applications
- Dental Research and COVID-19
- Carbon and Quantum Dots Applications
- 3D IC and TSV technologies
- Quantum Dots Synthesis And Properties
- Thin-Film Transistor Technologies
- Nanomaterials for catalytic reactions
- Trace Elements in Health
- Radical Photochemical Reactions
- Insect and Pesticide Research
Université Grenoble Alpes
2007-2024
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2010-2024
CEA LETI
2008-2024
CEA LITEN
2007-2021
CEA Grenoble
2007-2019
Institut polytechnique de Grenoble
2008-2018
UCLouvain
2002-2009
Centre National de la Recherche Scientifique
2007-2009
Laboratoire des Technologies de la Microélectronique
2008-2009
Structure et Propriétés d'Architectures Moléculaires
2007
Photocatalytic paints based on titanium dioxide (TiO2) nanoparticles represent a promising treatment technology for cleaning the air at our dwellings. A few studies have shown that instead of elimination harmful indoor pollutants production carbonyl compounds occurs from photocatalytic paints. Herein, we report unexpectedly high concentrations volatile organic (VOCs) released upon irradiation which are meant to clean The VOCs were measured continuously and online by PTR-ToF-MS (Proton...
With the goal to improve their photostability, InP-based QDs are passivated with three types of inorganic shells, namely i) a gradient ZnSe(x)S(1-x) shell, ii) an additional ZnS shell on top two different thicknesses (core/shell/shell, CSS), iii) alumina coating ZnS. All systems have photoluminescence quantum yields (PLQY) > 50% and similar PL decay times (64-67 ns). To assess photostability they incorporated into transparent poly(methyl methacrylate) (PMMA) matrix exposed continuous...
The release of Ag(i) from silver nanoparticles (AgNPs) unintentionally spread in the environment is suspected to impair some key biological functions. In comparison with AgNO3, in-depth investigations were carried out into interactions between citrate-coated AgNPs (20 nm) and two metalloproteins, intracellular metallothionein 1 (MT1) plasmatic ceruloplasmin (Cp), both involved metal homeostasis. These chosen for their physiological relevance diversity various native metals bound because...
A simultaneous study of the emission VOCs and release nanoparticles into environment during photocatalytic activity a paint.
Due to their unique optical properties, quantum dots (QDs) are used in a number of optoelectronic devices and forecasted be the near future for biomedical applications. The most popular QD composition consists cadmium selenide (CdSe) or telluride (CdTe), which has been shown pose health risks due release toxic (Cd) ions. similar properties but lower intrinsic toxicity, indium phosphide (InP) QDs have proposed as safer alternative. Nevertheless, investigations regarding safety possible...
The structure of inorganic fillers dispersed in proton exchange membranes for fuel cell (PEMFC) was investigated by X-ray scattering and electron microscopy. hybrid have been obtained an situ precipitation zirconium phosphate (α-ZrP) particles within a perfluorosulfonated ionomer membrane (Nafion). An extended angular range the experiments covered order to analyze simultaneously crystalline particles, their shape size. At wide angles, peaks characteristic presence α-ZrP observed width...
summary Nowadays, dental resins find increasing use by practitioners. However, photopolymerization of such is limited to a so‐called ‘depth cure’. To face this problem, dentists superimpose resin layers depth. This technique raises the problem quality interlayer. paper aims at screening different cases adhesion interface. Shear strength interfacial tested in shear mode various conditions (with or without an oxygen‐inhibited layer, contaminated saliva water). Unexpectedly, presence...
In general, fluorinated antisticking layers (F-ASL) are deposited on the imprint stamps to ease their separation from imprinted resist in UV nanoimprint lithography. However, these found degrade with repeated operations. A drastic decrease species is observed mold surface. Yet, there still a debate nature of exact mechanisms involved this degradation. paper, electron spin resonance (ESR) used investigate chemical reaction occurring between molecules and curable resist. Free radicals resist,...
Abstract Photopolymerization of methacrylated dental resins at room temperature leads to the appearance long‐life free radicals because system vitrification. These were observed by electronic paramagnetic resonance (EPR), and their characterization was undertaken reference reactional mechanism, from comparison with model EPR signal theoretical simulation. Overlapping two signals assigned different kinds methacrylate end groups accounted for all experimental results. © 2003 Wiley Periodicals,...
The SERENADE project aims to develop and apply the “safer by design” process create safer nanoproducts.
Photocatalytic materials are a potentially effective remediation technology for indoor air purification. In this paper, we assess the impact of photocatalytic paint porosity on levels nitrogen oxides (NOx) and nitrous acid (HONO). We observed that paints plays paramount role in NO2 removal. The increase pigment volume concentration (PVC), i.e. porosity, from PVC 53% to 80% leads an geometric uptake coefficient (3.3 ± 0.5) × 10-6 (3.2 0.1) 10-4. At same time, high quantity HONO formed by...
Polythiol molecules dissolve silver nanoparticles with kinetic rates that increase the number of thiols per molecule and their pre-orientation.
Due to the increasing number of application fields using lithium compounds in microelectronics sector, it is necessary investigate contamination influence and effects on silicon oxide. To be able use a controlled manner complementary metal–oxide–semiconductor clean room environments, various diffusion during an important process semiconductor manufacturing, thermal oxidation form oxide, are investigated herein. This includes within wafer, between wafers, into furnace environment. For this...
Safer by design approaches for TiO<sub>2</sub> based photocatalytic paints.
This paper presents a general overview of the work carried out by European project SCAFFOLD (GA 280535) during its 30 months life, with special emphasis on risk management component. The research conducted is focused construction sector and considers 5 types nanomaterials (TiO2, SiO2, carbon nanofibres, cellulose nanofibers nanoclays), 6 applications (Depollutant mortars, selfcompacting concretes, coatings, self-cleaning fire resistant panels insulation materials) 26 exposure scenarios,...