Articles tagged "nanoparticles"

The 16th European Microscopy Congress 2016
Discrete STEM/EDX tomography for quantitative 3D reconstructions of chemical nanostructures
Eric Robin (1), Miguel Lopez-Haro (2), Nicolas Mollard (1), Pamela Rueda-Fonseca (1, 3), Marta Orru (1, 3), Edith Bellet-Amalric (1), Yann Genuist (3), Regis Andre (3), Alberto Artioli (3), Serge Tatarenko (3), David Ferrand (3), Joel Cibert (3), Khalil El Hajraoui (3), Martien Den Hertog (3), Thibault Cremel (1), Kuntheak Kheng (1), Laure Guetaz (4)
1. University Grenoble Alpes, INAC, CEA, Grenoble, France 2. Inorganic chemistry department, University of Cadiz, Cadiz, Espagne 3. University Grenoble Alpes, Neel, CNRS, Grenoble, France 4. LITEN, CEA, Grenoble, France
We report here on the quantitative 3D reconstruction of core-shell nanostructures by STEM/EDX using two X-ray maps acquired at two different tilt angles perpendicular to…
The 16th European Microscopy Congress 2016
Decontamination capacity of a fish after trophic contamination with gold nanoparticules: ultrastructural study
Nathalie Mesmer-Dudons (1), Aurore Chongaud (1), Stephane Mornet (2), Agnès Feurtet-Mazel (1), Régine Maury-Brachet (1), Magalie Baudrimont (1)
1. UMR EPOC 5805, CNRS, UNiversité Bordeaux, Arcachon, France 2. ICMCB CNRS UPR 9048, CNRS, Bordeaux, France
Nanomaterials represent today a major economic and technological issue, because of their innovating properties rising from their nanometric size (1 to 100 nm) and in…
The 16th European Microscopy Congress 2016
Characterizing the protein corona of polystyrene nanoparticles
Maria Kokkinopoulou (1), Johanna Simon (1), Volker Mailaender (1), Ingo Lieberwirth (1), Katharina Landfester (1)
1. Physical Chemistry of Polymers, Max Planck Institute for Polymer Research, Mainz, Allemagne
Nanoparticles are of great interest for their use in biomedical applications like imaging and drug delivery. They are used as delivery vesicles to carry drugs…
The 16th European Microscopy Congress 2016
Aberration corrected environmental STEM (AC ESTEM) for atom-by-atom analysis of nanoparticle catalyst activation and deactivation mechanisms
Edward Boyes (1), Michael Ward (1), Thomas Martin (1), Leonardo Lari (1), Robert Mitchell (2), Alec LaGrow (2), David Lloyd (1), Ian Wright (1), Pratibha Gai (2)
1. Dept of Physics and York JEOL Nanocentre, University of York, York, Royaume Uni 2. Department of Chemistry and York JEOL Nanocentre, University of York, York, Royaume Uni
The core design for the modern ETEM (1, 2), of which there are now some 20 replicates worldwide, has been modified to support full ESTEM…
The 16th European Microscopy Congress 2016
Nanoparticle Structure and Dynamics Studied Using Controlled Atmosphere Transmission Electron Microscopy
Thomas Willum Hansen (1)
1. Center for Electron Nanoscopy, Technical University of Denmark, Kgs. Lyngby, Danemark
Nanoparticle and catalysis research makes extensive use of transmission electron microscopy (TEM). In particular, environmental transmission electron microscopy (ETEM) has attracted considerable attention in recent…
The 16th European Microscopy Congress 2016
In-situ atomic scale studies of ammonia synthesis over ruthenium nanocatalysts
Robert Mitchell (1), Edward Boyes (2), Pratibha Gai (1)
1. Departments of Chemistry, Physics and York JEOL Nanocentre, University of York, York, Royaume Uni 2. Departments of Electronics, Physics and York JEOL Nanocentre, University of York, York, Royaume Uni
Ammonia is an important chemical for the production of fertilisers and in chemical synthesis. Catalyst materials are employed to improve the rate of formation of…
The 16th European Microscopy Congress 2016
In-situ studies of the dendritic yttria precursor nanostructures growth dynamics at elevated temperatures using liquid-cell transmission electron microscopy
Saso Sturm (1), Bojan Ambrozic (1), Marjan Bele (2), Nina Kostevsek (1), Kristina Zuzek Rozman (1)
1. Department for Nanostructured Materials, Jozef Stefan Institute, Ljubljana, Slovénie 2. Laboratory for Chemistry of Materials, National Institute of Chemistry, Ljubljana, Slovénie
Yttria, a host for heavy rare earth elements, is an important up-conversion material, able to convert lower energy near-infrared light into higher energy visible light,…
The 16th European Microscopy Congress 2016
Formation of bimetallic clusters in superfluid helium nanodroplets analysed by atomic resolution electron tomography
Georg Haberfehlner (1), Philipp Thaler (2), Daniel Knez (1), Alexander Volk (2), Ferdinand Hofer (1), Wolfgang E. Ernst (2), Gerald Kothleitner (1)
1. Graz Centre for Electron Microscopy & Institute for Electron Microscopy and Nanoanalysis, Graz University of Technology, Graz, Autriche 2. Institute for Experimental Physics, Graz University of Technology, Graz, Autriche
Metallic nanoparticles consisting of a few thousand atoms are of large interest for potential applications in different fields such as optics, catalysis or magnetism. Structure,…
The 16th European Microscopy Congress 2016
Atomic resolution electron microscopy of cobalt ferrite nanoparticles
Dominique Piché (1), Juan G Lozano (1), Aakash Varambhia (1), Frank Dillon (1), Lewys Jones (1), Peter D Nellist (1), Nicole Grobert (1)
1. Department of Materials, University of Oxford, Oxford, Royaume Uni
Cobalt ferrite (CoFe2O4) nanoparticles have recently emerged as a potential candidate for a range of bio-medical applications due to their interesting physical and magnetic properties.…
The 16th European Microscopy Congress 2016
In-Situ ESTEM Observations of Asymmetric Oxidation and Reduction in Copper Nanoparticles
Alec LaGrow (1, 2), Michael Ward (1, 2), David Lloyd (1, 2), Edward Boyes (1, 2, 3), Pratibha Gai (1, 2, 4)
1. The York JEOL Nanocentre, University of York, York, Royaume Uni 2. Department of Physics, University of York, York, Royaume Uni 3. Department of Electronics, University of York, York, Royaume Uni 4. Department of Chemistry, University of York, York, Royaume Uni
A fundamental understanding of the oxidation and corrosion mechanisms of metals is of critical importance to improving their performance in catalysis, and other industrial applications.1…

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