Résultats de la recherche - 7 results
Release of silver and titanium from face masks traded for the general population.
acceptable exposure limit values derived from inhalation exposure limits indicate that three face masks would need further risk assessment and could not be considered as intrinsically safe. Health Topics: ...
Application of silver-based biocides in face masks intended for general use requires regulatory control
control SARS-CoV-2 infection needs to be balanced against possible toxicity due to inhalation exposure. Direct measurement of silver (particle) release to estimate exposure is problematic. Therefore, this ...
Evaluation of the types, efficient use and health risks of application of silver-based biocides to provide antimicrobial properties to face masks applied during the Covid-19 crisis
consisting of metallic silver releasing Ag+ ions, Ag0 NP and large silver particles. For metallic and ionic silver, an acceptable exposure level (AEL mask) of 25 µg per mask was established based on ...
IDENTIFICATION, PHYSICOCHEMICAL CHARACTERISATION AND PRELIMINARY RISK ANALYSIS OF TITANIUM DIOXIDE PARTICLES IN FACE MASKS Intermediate report TiO2-Mask COVID-19 project September 2021
fibre-grade TiO2 particles. Because there are no methods available for measuring exposure directly, the methodology that ANSES applied to determine the professional exposure limits to titanium dioxide in its ...
Is aggregated synthetic amorphous silica toxicologically relevant?
size distributions. Their effect on cell metabolic activity, cell viability, epithelial barrier integrity, total glutathione content and, IL-8 and IL-6 secretion were investigated after 24 h exposure in ...
Short-term biodistribution and clearance of intravenously administered silica nanoparticles
Yves-Jacques; Ann Ruttens; S. Roels Source: Toxicology Reports, Volume 5, Number 638 (2018) Keywords: distribution in vivo intravenous exposure nanomaterials synthetic amorphous silica Abstract: Recently, ...
Toxicology of silica nanoparticles: an update
amorphous silica nanoparticles (SiNPs) have increased the risk of human exposure to SiNPs, while their health effects remain unclear. In this review, scientific papers from 2010 to 2016 were systematically ...