Disdier, Clémence Chalansonnet, Monique Gagnaire, François Gaté, Laurent Cosnier, Frédéric Devoy, Jérôme Saba, Wadad Lund, Amie K. Brun, Emilie Mabondzo, Aloïse
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Published in
Scientific Reports
Notwithstanding potential neurotoxicity of inhaled titanium dioxide nanoparticles (TiO2 NPs), the toxicokinetics and consequences on blood-brain barrier (BBB) function remain poorly characterized. To improve risk assessment, we need to evaluate the impact on BBB under realistic environmental conditions and take into account vulnerability status suc...
HONORIO, Tulio BROCHARD, Laurent
The flexibility of C-S-H solid sheets may play, as is the case of other phyllosilicates, an important role in the structuration of "bulk" C-S-H. In this paper, we determine, for the first time to the author's knowledge, the bending modulus of tobermorite single sheets by the combination of molecular simulations and Kichhoff-Love plate theory. Furth...
Bau, Sébastien TOUSSAINT, André Payet, Raphaël Witschger, Olivier
Strategies for measuring occupational exposure to aerosols composed of nanoparticles and/or ultrafine particles highlight the use of techniques for determining airborne-particle number concentration as well as number size distribution. The objective of the present work was to set up a system for conducting laboratory verification campaigns of conde...
Bau, Sébastien Payet, Raphaël Witschger, Olivier Jankowska, Elżbieta
The aim of this experimental study was to investigate the performance of both portable and transportable devices devoted to the real-time measurement of airborne particle number concentration and size (distribution). Electrical mobility spectrometers (SMPS, FMPS, Nanoscan) as well as diffusion chargers (DiSCmini, Nanotracer) were studied. Both mono...
Dazon, Claire Witschger, Olivier Bau, Sébastien Payet, Raphaël beugnon, karine Petit, Geneviève Garin, Thibaut Martinon, Laurent
The handling of carbon nanotube (CNT) powders is a plausible scenario during the course of the CNT life-cycle. However, related exposure data remain limited. In this context, information about the dustiness of CNT is therefore of great interest, for example for control banding or exposure modelling. Here, we investigate the dustiness of fourteen CN...
Binet, Stéphane Ricaud, Myriam Chazelet, Sandrine Fontaine, Jean-Raymond Gaté, Laurent Hédelin, Guy Malard, Stéphane Rousset, Davy Witschger, Olivier
En 2004, plusieurs experts réunis par la Commission Européenne estimaient par consensus que les risques potentiels des nanomatériaux manufacturés ne pouvaient être prédits ou dérivés des propriétés connues de la même matière sous une forme plus grossière. Selon leur estimation, fabriquer un nanomatériau revenait à créer un nouvel agent chimique dif...
Bau, Sébastien Witschger, Olivier
Les stratégies de mesure des expositions professionnelles aux aérosols de nanomatériaux mettent en avant l’utilisation de techniques de mesure de la concentration en nombre de particules ainsi que leur distribution granulométrique. L’objectif de ces travaux était de mettre en place un système de référence permettant de mener en laboratoire des camp...
Caroly, Sandrine Drais, Eric
Ce rapport présente les résultats de quatre ans de recherche en partenariat entre le laboratoire PACTE de l'Université de Grenoble et l’INRS sur la prévention des risques liés aux nanomatériaux. L’utilisation des nanomatériaux constitue aujourd’hui une innovation technologique majeure dans tous les secteurs d’activité. Ces nouveaux matériaux représ...
Lebental, Bérengère GHADDAB, Boutheina MICHELIS, Fulvio
NICOM 5 - Fifth International Symposium on Nanotechnology in Construction, CHICAGO, ETATS-UNIS, 24-/05/2015 - 26/05/2015
Bau, Sébastien Witschger, Olivier
Cascade impactors are widely used to provide particle size distributions for the study of aerosols in workplaces and ambient air. In the frame of exposure assessment to airborne particles, one of their main advantages is the possibility to perform further off-line analysis (e.g. electron microscopy, physical-chemical characterization by XRD, ICP-MS...
