Zoekresultaten - 10 results

Release of silver and titanium from face masks traded for the general population.

consumers. Direct measurement of release of Ag and TiO particles during normal wearing is problematic by the lack of methodology to test release and to quantify inhaled particles. Therefore in this study, we ...

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 ...

METROFOOD-RI: Pilot services with physical, remote and virtual access

Van Loco Source: Measurement: Sensors, Volume 18 (2021) Keywords: ESFRI Food safety and quality Metrology research infrastructure Abstract: METROFOOD- RI (www.metrofood.eu) is an ESFRI research ...

Agglomeration of titanium dioxide nanoparticles increases toxicological responses in vitro and in vivo

the influence of nanoparticle (NP) agglomeration and aggregation on toxicity is poorly understood although it is strongly believed that smaller the size of the NP s greater the toxicity. ...

Physicochemical Characterization of the Pristine E171 Food Additive by Standardized and Validated Methods.

Nanomaterials (Basel), Volume 10, Issue 3 (2020) Keywords: E171 food additive Single particle ICP-MS transmission electron microscopy Abstract: E171 (titanium dioxide) is a food additive that has been authorized ...

Is aggregated synthetic amorphous silica toxicologically relevant?

significantly relevant from a nanotoxicological perspective.This knowledge gap greatly afects the safety assessment and regulation of NM s, such as synthetic amorphous silica (SAS). SAS is used in a large panel ...

Estimation of the Uncertainties Related to the Measurement of the Size and Quantities of Individual Silver Nanoparticles in Confectionery.

Single particle ICP-MS Abstract: E174 (silver) is a food additive that may contain silver nanoparticles (AgNP). Validated methods are needed to size and quantify these particles in a regulatory context. ...

A systematic evaluation of Flow Field Flow Fractionation and single-particle ICP-MS to obtain the size distribution of organo-mineral iron oxyhydroxide colloids.

FlFFF- UV- ICP- MS is recommended for environmental studies of colloidal FeOx since it has a wide size detection range, it fractionates in an environmentally relevant background (1 mM NHHCO) and it has ...

Evaluation of a TEM based Approach for Size Measurement of Particulate (Nano)materials.

accurate and precise size measurement of the particulate materials. The approach is shown to be implementable in many other electron microscopy laboratories. Health Topics:  Nanomaterialen Nanomatériaux ...

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