Search results - 10 results
Development of novel analytical methods to trace small micro- and nanoplastics in food matrices
identified by Raman microspectroscopy. As a side supporting technique, atomic force microscopy (AFM) and transmission electron microscopy (TEM) have been employed to investigate the size, shape and the ...
Particle size analysis of pristine food-grade titanium dioxide and E 171 in confectionery products: Interlaboratory testing of a SP-ICP-MS screening method and confirmation with transmission electron microscopy.
electron microscopy (TEM) was used as a confirmatory technique and served as the basis for bias estimation. The optimisation of the sample preparation step showed that when this protocol was applied to the ...
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 ...
Characterization of pristine food additives by TEM
Publication Type: Scientific poster, presentation or proceeding Authors: Eveline Verleysen Source: Workshop: Physicochemical characterisation of nano-sized particles in food, Tervuren, Belgium (2019) Health Topics: Food consumption and food safety Consom ...
Automation and validation of TEM characterization methods
Publication Type: Scientific poster, presentation or proceeding Authors: Eveline Verleysen Source: Workshop: Physicochemical characterisation of nano-sized particles in food, Tervuren, Belgium (2019) Health Topics: Food consumption and food safety Consom ...
Genetic elements associated with antimicrobial resistance among avian pathogenic Escherichia coli.
TEM), chloramphenicol (cat1), kanamycin (aphA1), and sulphonamide (sul1 and sul2). Among ciprofloxacin-resistant isolates, the S83L mutation was the most frequently substitution observed in the quinolone ...
Development of a Luminex xTAG® assay for cost-effective multiplex detection of β-lactamases in Gram-negative bacteria.
non- ESBL SHV- and TEM-likes, OXA-½/7-likes, PER, VEB, GES), plasmid-mediated cephalosporinases (CMY, MOX, FOX, ACC, DHA, MIR / ACT) and carbapenemases (OXA-48, NDM, KPC, VIM, IMP). METHODS: A modular ...
Physical Characterization of Nanomaterials in Dispersion by Transmission Electron Microscopy in a Regulatory Framework
8, Number 270, Cham, p.21 (2015) ISBN: 978-3-319-15176-2 Abstract: TEM is one of the few techniques that can identify nanoparticles according to the current definitions. This chapter focuses on the ...
Clonal emergence of extended-spectrum beta-lactamase (CTX-M-2)-producing Salmonella enterica serovar Virchow isolates with reduced susceptibilities to ciprofloxacin among poultry and humans in Belgium and France (2000 to 2003).
beta-lactamase, CTX-M-2, concomitantly with a TEM-1 beta-lactamase. The bla(CTX-M-2) gene was located on a large conjugative plasmid (>100 kb). Pulsed-field gel electrophoresis indicated a clonal relationship ...
Characterization of the TiO2 E171 food additive
descriptive TEM and using a combination of TEM imaging and image analysis. The latter approach allows to assess the distribution of the particle properties (size, shape, surface structure) quantitatively. For ...