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Zoekresultaten - 38 results

The use of nitrous oxide whippets as a recreational drug: Hidden health risks.

lead were found. STEM- EDX analysis confirmed the presence of nano-sized particles containing iron and zinc. When simulating inhalation, using the multiple path particle dosimetry model, it was confirmed ...

Identification and characterization of inorganic food additives and pearlescent pigments in sprays for food decoration by STEM-EDX

mixtures, characterisation of the fraction of small particles, including the particle size distribution, is needed for each single constituent or each component in the mixture2. This is challenging for ...

Identification and characterization of TiO2 nanoparticles in face masks by TEM

1866, Mountain View, CA 94042, p.17 (2022) Keywords: Agglomerates electron microscopy energy dispersive X-ray spectroscopy Face mask image analysis Nanoparticles particle size distribution STEMEDX TEM ...

Towards a generic protocol for measuring the constituent particle size distribution of E171 in food by electron microscopy

Publication Type: Peer reviewed scientific article Authors: Eveline Verleysen; Frederic Brassinne; Frederic Van Steen; Nadia Waegeneers; Karlien Cheyns; Ronny Machiels; Stella Mathioudaki; Isaac Ojea Jimenez; Ledecq, Marina; Jan Mast Source: Food Control, ...

Safety assessment of titanium dioxide (E171) as a food additive.

uncertainty as to whether a threshold mode of action could be assumed. In addition, a cut-off value for TiO particle size with respect to genotoxicity could not be identified. No appropriately designed study ...

Safety assessment of titanium dioxide (E171) as a food additive

There was uncertainty as to whether a threshold mode of action could be assumed. In addition, a cut-off value for TiO2 particle size with respect to genotoxicity could not be identified. No appropriately ...

Physico-chemical characterisation of the fraction of silver (nano)particles in pristine food additive E174 and in E174-containing confectionery.

Assess (2020) Keywords: E174 particle size distribution Silver Single particle ICP-MS TEM Abstract: Silver (E174) is authorised as a food additive in the EU. The unknown particle size distribution of E174 ...

Physico-chemical characterisation of the fraction of silver (nano)particles in pristine food additive E174 and in E174-containing confectionery

Issue 11 (2020) Keywords: E174 food additive silverparticle size distribution spICP-MS TEM Abstract: Silver (E174) is authorised as a food additive in the EU. The unknown particle size distribution of ...

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

Dominique Lison; Peter H. Hoet; Sybille van den Brule Source: Particle and Fibre Toxicology (2020) Keywords: Agglomerates Biological responses nanomaterials titanium dioxide toxicity Abstract: Background: The ...

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