A5050938308- Nanoparticles: synthesis and applications
- Electron and X-Ray Spectroscopy Techniques
- Coagulation and Flocculation Studies
- Field-Flow Fractionation Techniques
- Advanced Electron Microscopy Techniques and Applications
- Electrostatics and Colloid Interactions
- Scientific Measurement and Uncertainty Evaluation
- Heavy Metal Exposure and Toxicity
- Iron oxide chemistry and applications
- Anesthesia and Neurotoxicity Research
- Anesthesia and Sedative Agents
- Particle Dynamics in Fluid Flows
- Ion-surface interactions and analysis
- Anodic Oxide Films and Nanostructures
- Thermal and Kinetic Analysis
- Nanopore and Nanochannel Transport Studies
- Protein Structure and Dynamics
- TiO2 Photocatalysis and Solar Cells
- Minerals Flotation and Separation Techniques
- Surface and Thin Film Phenomena
- Zeolite Catalysis and Synthesis
- Heart Failure Treatment and Management
- Graphene and Nanomaterials Applications
- Aerogels and thermal insulation
- Pigment Synthesis and Properties
Northrop Grumman (United States)
2019
Sciensano (Belgium)
2018-2019
Veterinary and Agrochemical Research Centre
2011-2017
KU Leuven
1979-2014
Humans are increasingly exposed via the diet to Ag nanoparticles (NP) used in food industry. Because of their anti-bacterial activity, ingested NP might disturb gut microbiota that is essential for local and systemic homeostasis. We explored here possible impact dietary on mice at doses relevant currently estimated human intake.Mice were orally (pellets) supplemented with increasing (0, 46, 460 or 4600 ppb) during 28 d. Body weight, inflammation integrity investigated determine overall...
A new certified reference material for quality control of nanoparticle size analysis methods has been developed and produced by the Institute Reference Materials Measurements European Commission's Joint Research Centre. The material, ERM-FD102, consists an aqueous suspension a mixture silica populations distinct particle origin. characterisation relied on interlaboratory comparison study in which 30 laboratories demonstrated competence participated with variety techniques analysis. After...
Particle tracking analysis (PTA) is an emerging technique suitable for size of particles with external dimensions in the nano- and sub-micrometre scale range. Only limited attempts have so far been made to investigate quantify performance PTA method particle analysis. This article presents results a validation study during which selected colloidal silica polystyrene latex reference materials sizes range 20 nm 200 were analysed NS500 LM10-HSBF NanoSight instruments video software NTA 2.3 3.0....
We studied the effects of preconceptional exposure to multiwalled carbon nanotubes (MWCNTs): mature, female C57BL/6J mice were intratracheally instilled with 67μg NM-400 MWCNT, and following day co-housed mature males, in breeding pairs. Time delivery first litter, litter parameters, maternal inflammation histopathology lung liver recorded. In male offspring, locomotor activity, startle response, daily sperm production (DSP) assessed. dams, bore evidence MWCNT when assessed 6 weeks 4 months...
Metallic silver is an EU approved food additive referred to as E174. It generally assumed that only present in bulk form the chain. This work demonstrates a simple treatment with water of "silver pearls", meant for decoration pastry, results release subfraction nanoparticles. The number-based size and shape distributions single, aggregated, and/or agglomerated particles released from pearls were determined by combining conventional bright-field TEM imaging semiautomatic particle detection...
An approach for the size measurement of particulate (nano)materials by transmission electron microscopy was evaluated. The combines standard operating procedures specimen preparation, imaging, and image analysis, it evaluated on a series certified reference materials representative test with varying physical properties, including particle size, shape, agglomeration state. median value minimal external diameter distribution intra-laboratory validated. validation study included an assessment...
Abstract Background The interaction of a nanomaterial (NM) with biological system depends not only on the size its primary particles but also size, shape and surface topology aggregates agglomerates. A method based transmission electron microscopy (TEM), to visualize NM image analysis, measure detected features quantitatively, was assessed for capacity characterize agglomerates precipitated pyrogenic synthetic amorphous silicon dioxide (SAS), or silica, NM. Results Bright field (BF) TEM...
Abstract Background Transmission electron microscopy (TEM) remains an important technique to investigate the size, shape and surface characteristics of particles at nanometer scale. Resulting micrographs are two dimensional projections objects their interpretation can be difficult. Recently, tomography (ET) is increasingly used reveal morphology nanomaterials (NM) in 3D. In this study, we examined feasibility visualize measure silica gold NM suspension using conventional bright field...
A recombinant GroES nanopore reveals the dynamics and kinetics of allosteric intermediates GroEL protein-folding reaction.
Line-start incremental centrifugal liquid sedimentation (disc-CLS) is a powerful method to determine particle size based on the principles of Stokes' law. Because several input quantities Stokes equation cannot be easily determined for this case rotating disc, disc-CLS approach relies calibrating time scale with reference particles. To use these calibrant particles establishing metrological traceability, they must fulfill same requirements as those imposed certified material, i.e., their...
Our experience to date covers 675 kidney grafts performed in the Transplantation Department of University Louvain. The evolution our anaesthesia methods has led us since end 1973 conduct 375 transplantations with enflurane. patients, aged between 18 months and 50 years, receive a conventional premedication, do not corticoids preoperatively nor undergo dialysis immediately prior operation, but systematically 5‐unit transfusion beforehand. Having successively abandoned gallamine,...