Résultats de la recherche - 285 results
Physico-chemical characterisation of the fraction of silver (nano)particles in pristine food additive E174 and in E174-containing confectionery
products by transmission electron microscopy (TEM) and single-particle inductively coupled plasma-mass spectrometry (spICP- MS). TEM analysis showed that all samples contained micrometre-sized flakes and ...
Challenges to Differentiate Hepatitis C Genotype 1 and 6: Results from A Field-Study in Cambodia.
different methods used for hepatitis C (HCV) genotyping in a Cambodian HCV / HIV coinfection project. METHODS: Samples of 106 patients were available. HCV genotyping was initially (63 samples) done by the ...
Strain-Level Metagenomic Data Analysis of Enriched In Vitro and In Silico Spiked Food Samples: Paving the Way towards a Culture-Free Foodborne Outbreak Investigation Using STEC as a Case Study.
shotgun sequencing of food samples, could not only reduce the turnaround time of samples in an outbreak investigation, but also allow the detection of multi-species and multi-strain outbreaks. For ...
A Practical Method to Implement Strain-Level Metagenomics-Based Foodborne Outbreak Investigation and Source Tracking in Routine.
in food samples containing different strains, including a combination of different STEC strains. For the first time, we also managed to link individual strains from a food product to isolates from ...
Use of Whole Genome Sequencing Data for a First in Silico Specificity Evaluation of the RT-qPCR Assays Used for SARS-CoV-2 Detection.
started in December 2019. COVID-19 cases are confirmed by the detection of SARS-CoV-2 RNA in biological samples by RT-qPCR. However, limited numbers of SARS-CoV-2 genomes were available when the first ...
The Benefits of Whole Genome Sequencing for Foodborne Outbreak Investigation from the Perspective of a National Reference Laboratory in a Smaller Country.
Reference Laboratories of smaller countries often show slower uptake of WGS, mainly because of significant investments required to generate and analyze data of a limited amount of samples. To facilitate this ...
Tackling cervical cancer in Europe amidst the COVID-19 pandemic.
applied on self-collected samples, a strategy that might be used to reach underscreened populations. In May, 2018, the WHO Director General launched a call to eliminate cervical cancer by vaccinating at ...
Characterization of Nanoparticles: Measurement Processes for Nanoparticles: Characterization of nanomaterials by transmission electron microscopy: Measurement procedures
Processes for Nanoparticles surveys this fast growing field, including established methods for the physical and chemical characterization of nanoparticles. The book focuses on sample preparation issues ...
Bepaling van spoorelementen in diverse matrices met spectrometische technieken.
preparations were mineralized with HNO3 in microwave oven and the concentrations of As, Cd, Ni, Pb in the samples were analyzed with an ICP- MS. Hg in these samples was determined with the AMA. 2.textile samples ...
EFSA guidance on technical requirements for regulated food and feed product applications to establish the presence of small particles including nanoparticles
electron microscopy. feed additives Food Additives food flavourings Food Supplements Minerals Nanoparticles nanoscale novel foods particle size distribution particles sample dispersion protocol Solubility ...