A 90-day oral exposure to food-grade gold at relevant human doses impacts the gut microbiota and the local immune system in a sex-dependent manner in mice

Autor: Lauris Evariste, Bruno Lamas, Sandrine Ellero-Simatos, Laure Khoury, Christel Cartier, Eric Gaultier, Benoit Chassaing, Nicolas Feltin, Laurent Devoille, Georges Favre, Marc Audebert, Eric Houdeau

Publikováno v: Particle and Fibre Toxicology, Vol 20, Iss 1, Pp 1-25 (2023)

Abstract Background Edible gold (Au) is commonly used as a food additive (E175 in EU) for confectionery and cake decorations, coatings and in beverages. Food-grade gold is most often composed of thin Au sheets or flakes exhibiting micro- and nanometr

Externí odkaz: https://doaj.org/article/c5c4386419354e64878d52a161fee8b0

Metrological Protocols for Reaching Reliable and SI-Traceable Size Results for Multi-Modal and Complexly Shaped Reference Nanoparticles

Autor: Nicolas Feltin, Loïc Crouzier, Alexandra Delvallée, Francesco Pellegrino, Valter Maurino, Dorota Bartczak, Heidi Goenaga-Infante, Olivier Taché, Sylvie Marguet, Fabienne Testard, Sébastien Artous, François Saint-Antonin, Christoph Salzmann, Jérôme Deumer, Christian Gollwitzer, Richard Koops, Noham Sebaïhi, Richard Fontanges, Matthias Neuwirth, Detlef Bergmann, Dorothee Hüser, Tobias Klein, Vasile-Dan Hodoroaba

Publikováno v: Nanomaterials, Vol 13, Iss 6, p 993 (2023)

The study described in this paper was conducted in the framework of the European nPSize project (EMPIR program) with the main objective of proposing new reference certified nanomaterials for the market in order to improve the reliability and traceabi

Externí odkaz: https://doaj.org/article/25f22c0f6003457dbb44985993ae3714

Correlative Analysis of the Dimensional Properties of Bipyramidal Titania Nanoparticles by Complementing Electron Microscopy with Other Methods

Autor: Loïc Crouzier, Nicolas Feltin, Alexandra Delvallée, Francesco Pellegrino, Valter Maurino, Grzegorz Cios, Tomasz Tokarski, Christoph Salzmann, Jérôme Deumer, Christian Gollwitzer, Vasile-Dan Hodoroaba

Publikováno v: Nanomaterials, Vol 11, Iss 12, p 3359 (2021)

In this paper, the accurate determination of the size and size distribution of bipyramidal anatase nanoparticles (NPs) after deposition as single particles on a silicon substrate by correlative Scanning Electron Microscopy (SEM) with Atomic Force Mic

Externí odkaz: https://doaj.org/article/a2fad9cb0d83436fb15b13c9b69453d6

A 90-day Oral Exposure to Food-grade Gold at Relevant Human Doses Impacts the Gut Microbiota and the Local Immune System in a Sex-dependent Manner in Mice

Autor: Lauris Evariste, Bruno Lamas, Sandrine Ellero-Simatos, Laure Khoury, Christel Cartier, Eric Gaultier, Benoit Chassaing, Nicolas Feltin, Laurent Devoille, Georges Favre, Marc Audebert, Eric Houdeau

Background: Edible gold (Au) is commonly used as a food additive (E175 in EU) for confectionery and cake decorations, coatings and in beverages. Food-grade gold is most often composed of thin Au sheets or flakes exhibiting micro- and nanometric dimen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b801b50539acd7215468d83bc3dae0bf
https://ut3-toulouseinp.hal.science/hal-03774131/document

Development of a new hybrid approach combining AFM and SEM for the nanoparticle dimensional metrology

Autor: Elodie Barruet, Christian Ulysse, Guillaume Noircler, Alexandra Delvallée, Christophe Tromas, Nicolas Feltin, Loïc Crouzier, Sebastien Ducourtieux, Laurent Devoille, Olivier Taché

Publikováno v: Beilstein Journal of Nanotechnology
Beilstein Journal of Nanotechnology, Karlsruhe Institute of Technology., 2019, 10, pp.1523-1536. ⟨10.3762/bjnano.10.150⟩
Beilstein Journal of Nanotechnology, Vol 10, Iss 1, Pp 1523-1536 (2019)
Beilstein Journal of Nanotechnology, 2019, 10, pp.1523-1536. ⟨10.3762/bjnano.10.150⟩

International audience; At this time, there is no instrument capable of measuring a nano-object along the three spatial dimensions with a controlled uncertainty. The combination of several instruments is thus necessary to metrologically characterize

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::998791f20e5f1dcc3b353bc063f2adca
http://europepmc.org/articles/PMC6664400