LIONS 
Découvrez le site internet du groupe Laboratoire Interdisciplinaire sur l'Organisation Nanométrique et Supramoléculaire (LIONS).
Discover the internet WEBsite of the LIONS (Interdisciplinary Laboratory on Nanoscale and Supramolecular Organization).
The Nanoprotection research project (http://nanoprotection.cnrs.fr/) gathers six French laboratories. Four scientist from the LIONS are involved: Frédéric Gobeaux, Jean-Philippe Renault, Fabienne…
3D view of the design We have designed and regularly upgrade an in-house SAXS experiment for high sensitivity measurements. The generator is a copper rotating anode Rigaku RUH3R, with a fine focus…
TANGOwatch is the first Android application dedicated for TANGO control command system. Android is the exploitation system used in most of modern smartphone connected to internet.
Laboratory experiments are increasingly composed of electronic hardware and computer controlled. In most cases the quality of the equipment (mechanical, electronics) is very good but the software is…
X-rays are used to investigate the structural properties of solids, liquids or gels. Photons interact with electrons, and provide information about the fluctuations of electronic densities in…
A Bonse/Hart camera has been built [*] in order to measure ultra small angle X-ray scattering (What is measured in a Small Angle X-ray Scattering (SAXS) ?). A mirror installed between the source and…
The mass spectrometry is an instrumental technique of analysis resting on separation, the identification and the quantification of the components of a sample according to their mass. It is founded…
The microfluidics is the science and technology of systems that process or manipulate small amounts of fluids (nanoliter to attoliter), using channels with dimensions of tens to hundreds of…
MOMAC (Molybdenum for Condensed Matter) Momac is a Wide Angle X-Ray Scattering experiment, issue of a collaboration between CEA-LIONS and LPS-Orsay. The experiment is based on LPS-Orsay. LPS team is…
We have developed at LIONS a series of modules grouped under the name PySAXS (like Python for SAXS). PySAXS is entirely based on Numpy and SciPy. These modules allow us to perform the different…
Python is a powerfull, oriented langage. The syntax is very simple and easy to learn. A lot of Scientific modules exist. Why use Python to interact with the system ? As many X-ray experiments…
The Laboratoire Léon Brillouin (LLB) has installed in the “SWAXSLab” within the CEA Saclay a high resolution X-ray spectrometer Xeuss 2.0 from Xenoxs company ). This equipment aims at SAXS/ GISAXS…
The TANGO system works around the concept of “Device Server “. A device server is a program that deals specifically with permanent dialogue (“server”) with the apparatus (“device”). The device…
We use the Open Source ImageJ software for the SAXS treatment of different images from our x-rays detectors. Actually somes plugins are developed in the lab for opening images from MarResearch…
The microfluidics is the science and technology of systems that process or manipulate small amounts of fluids, using channels with dimensions of tens to hundreds of micrometers. Since a decade…
Le LIONS a choisi le langage Python comme outil commun de programmation pour l’analyse des données et le développement des algorithmes scientifiques. Cela facilite l’échange de code entre les…
Domain, Specialties : CHEMISTRY Keywords: Computational chemistry Research Unit : NIMBE / LIONS Imogolite is a nanotubular clay mineral that can be synthesized in the laboratory. Today, this family of materials constitutes a nanoplatform with multiple potential applications [1]. Imogolite is formed by the folding of a monolayer of aluminum hydroxide; formed from 3 to…
Domain, Specialties : CHEMISTRY Keywords: Materials chemistry Research Unit : NIMBE / LIONS The internship proposed here involves the experimental study of new digitally-designed, locally isotropic, multi-domain, 2D-architecture microtrellis metamaterials. The trainee will participate in the design, manufacture by 3D printing (photopolymerization) and study of the mechanical performance in compression of these new metamaterials. A…
Domain, Specialties : Materials chemistry Keywords: crystallization, non-classical nucleation, X-ray scattering, cryo-microscopy Research Unit : NIMBE / LIONS This project addresses a deep fundamental question with numerous practical implications: why and when do unexpected “mineral emulsions” form prior to crystallization in solution? It is now widely accepted that ions in solution assemble into crystals via…
Domain, Specialties : Materials chemistry Keywords: robotic syntheses, nucleation, Small-Angle X-ray Scattering Research Unit : NIMBE / LIONS Representativeness of robotic syntheses of nanoparticles With the advent of machine learning in materials chemistry, using robots to build databases of syntheses of nanoparticles is at the forefront. But how representative are these mixing methods? The advent…
Domain, Specialties : CHEMISTRY Keywords: NMR spectroscopy, fluoresence microscopy, sustainable cement, microfluidics Research Unit : NIMBE / LIONS This project is focused on the development of tools to study cement chemistry. Microfluidic devices will be used to control the environment of small cement samples, and techniques including NMR and fluorescence will be used to monitor…
Post-doctorat à pourvoir : “La radiolyse pour explorer la réactivité de catalyseurs pour la production de C2H4” Le but du travail sera d’utiliser la radiolyse pour optimiser la production d’éthylène de divers couples réactif/catalyseur après irradiation. L’objectif est également d’utiliser toute la potentialité des techniques de radiolyse pour déterminer les mécanismes de réaction correspondants, et…
Available Post-doc position: “Radiolysis to explore the reactivity of catalysts for C2H4 production” The aim of this post-doctoral work is to use radiolysis to optimize the ethylene production from various reactant/catalyst couples after irradiation. The aim is also to use the full potential of radiolysis techniques to determine the corresponding reaction mechanisms, and understand which…
The development of nanotechnology basednowdays on the assembly (or evenself-assembly) of building blocks that are nanoparticles. The goal is to make useof the intrinsic properties of nanoparticles…
