Zoekresultaten - 18 results
Release of silver and titanium from face masks traded for the general population.
industry. The presence of Ag-based biocides and TiO particles in face masks raised questions on the possibility of release under normal wearing conditions, which could potentially cause a health risk to the ...
Application of silver-based biocides in face masks intended for general use requires regulatory control
the applications of silver-based biocides and for the implementation of regulatory standards, quality control and product development based on the safe-by-design principle for nanotechnology ...
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
biocides in a selection of face masks on the Belgian market and intended to be worn by the general public. Following types of silver-based biocides were demonstrated: (i) Ag+ ions, (ii) metallic Ag0 NP ...
Acid digestion of nonwoven textiles for measuring their trace element content by ICP techniques
Protocol exchange (2022) Keywords: Acid digestion Face mask microwave Nanoparticles nonwoven textile Abstract: We present herein a digestion method based on high-temperature (260 °C) microwave heating and ...
Identification and characterization of TiO2 nanoparticles in face masks by TEM
on a (semi-)automatic quantitative analysis using ImageJ, and (iv) in view of risk assessment, a calculation to estimate the amount of particles available for release from the mask. Health Topics: ...
METROFOOD-RI: Pilot services with physical, remote and virtual access
efficiency in food quality and food safety. It strives to provide and coordinate high-level metrological services on a European scale for researchers, laboratories, food inspection agencies and policymakers. ...
Agglomeration of titanium dioxide nanoparticles increases toxicological responses in vitro and in vivo
terms agglomerates and aggregates are frequently used in the regulatory definition(s) of nanomaterials (NM s) and hence attract attention in view of their potential influence on health effects. However, ...
Physicochemical Characterization of the Pristine E171 Food Additive by Standardized and Validated Methods.
standardized and validated methodologies to characterize representative samples of 15 pristine E171 materials based on transmission electron microscopy (TEM) and single-particle inductively coupled plasma mass ...
Is aggregated synthetic amorphous silica toxicologically relevant?
far, it is indeed believed that large aggregates represent a weaker hazard compared to their nano counterpart. Thus, we assessed the impact of SAS aggregation on in vitro cytotoxicity/biological activity ...
Evaluation of a TEM based Approach for Size Measurement of Particulate (Nano)materials.
standard operating procedures for specimen preparation, imaging, and image analysis, and it was evaluated on a series of certified reference materials and representative test materials with varying physical ...