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Scientists at IRIG have observed, to a resolution of 0.5 nanometres, the interactions between the influenza virus genome and its associated proteins. This opens the way to a better understanding of the mechanisms underlying the replication of this virus with high pandemic potential.
Researchers at Irig have developed an original synthesis that enables them to produce indium phosphide quantum dots that are larger than ever before. These components, which emit up to the near infrared, are of interest both for photovoltaics and in vivo imaging.
Physicists at the CEA-Irig and their partners in Grenoble (CEA-Leti, CNRS, UGA) have shown that it is possible to trap individual bacteria and measure their response to stress using silicon photonic crystals. This disruptive technique, which does not require cell culture, opens the way to rapid antibiotic resistance tests.
Researchers at the CEA-Irig have succeeded in combining the dynamics of microtubules and actin filaments in a cell-sized compartment, allowing them to position the “microtubule-organizing center”.
Researchers at Irig and their partners have demonstrated for the first time that it is possible, through the simple application of a gate voltage, to change the winding direction of magnetization “nano-vortices” (skyrmions), and thus to individually control the direction of their motion. This breakthrough opens up new possibilities for research in information processing (multiplexing, etc.).
Researchers from the CEA-Irig and their Vietnamese partners have developed an artificial leaf capable of converting solar energy into hydrogen, with a 2% conversion yield. This is a promising achievement towards the storage of renewable energy sources!
Using almost fully automated processes, researchers at Irig have designed a three-dimensional microenvironment in which cells form a tissue resembling a mini-tumor. Their work opens new perspectives for personalized medicine.
Researchers from the CEA-Irig (IBS), Grenoble Alpes University, the CNRS and the ESRF have described for the first time an essential interaction between two SARS-CoV-2 proteins that could inspire a new therapeutic strategy against COVID-19.
Using a “pump-probe” spectroscopic technique, researchers at the CEA-Irig have succeeded in creating an authentic identity map of individual quantum bits, based on the spin of holes in silicon. This is an essential task that can easily be extrapolated to high qubit densities!
Researchers at the CEA-Irig have partly lifted the veil on the extraordinary resistance of a small animal, the tardigrade. At play is a disordered protein capable of transforming itself into a protective gel for other biomolecules during drought or extreme cold.
With the help of a “bone marrow on a chip”, researchers at Irig and their partners (Inserm, Hôpital St-Louis, Paris Diderot University) have observed the onset of differentiation in stem cells, before their transformation into blood cells. Upon contact with a bone cell, some of them completely reorganize. This unexpected discovery opens up entirely new paths for the study of a number of diseases such as leukemia.
Researchers from the CEA-Irig and their partners have developed a new enzymatic process for reducing CO2 and oxidizing CO. Efficient and able to operate under mild conditions, it could be used to purify gas from biomass pyrolysis in order to produce fuels or chemical precursors.
It is as if a microwave photon interacting with a small superconducting junction was split into several photons of lower energy! This is the scenario proposed by an IRIG researcher to interpret recent experiments using a network of superconducting Josephson junctions.
Drawing upon the 3D reconstruction of the cellular architecture of several phytoplankton families, researchers at the CEA-Irig have demonstrated that the physiological responses of these eukaryotes are associated with certain characteristics of their energy-producing organelles. This work thus provides new perspectives for the production of algal biomass, upstream of biotechnology applications.
Based in particular on multiscale morphological analyses, researchers at the CEA-Irig have developed a new generation of hybrid proton exchange membranes for fuel cells with promising performance and durability.
Thanks to an innovative approach developed by researchers at the Irig, the CEA-Leti and their partners, the identification of phages effective against antibiotic-resistant bacteria has been accelerated and the number of false negatives reduced. This work opens up the possibility of using phage therapy in hospitals!
Scientists from the Institute of Structural Biology (Irig) and their partners have confirmed that the COVID-19 virus can use immune cells to increase its transmission to other cells. They also show that it is possible to inhibit this new mode of transmission of the virus through the use of glycomimetics, i.e. molecules that can mimic the surface “sugars” of the virus.
Thanks to an original experimental setup, scientists from CEA-IRIG clarified for the first time how the response of a spin current to the perturbation brought by a ferromagnetic material depends on the orientation of the majority spin with respect to the magnetization of the material. A fundamental point for understanding spin transport in spintronic components!
Scientists at CEA-Irig, in close collaboration with CEA-Leti, achieved a unique integration of classical electronics with a quantum system. They demonstrate the possibility of measuring current through quantum dots by CMOS circuitry on a single chip cooled to 10 millikelvin, in Fully Depleted Silicon On Insulator (FD-SOI) technology.
A collaboration involving CEA-Irig has succeeded in setting in motion an 18-µm-long mechanical oscillator by optically exciting an embedded artificial atom. This result is an important step towards the realization of interfaces that connect the quantum and classical worlds.
Researchers at the CEA-Irig have introduced a new catalysis tool for green chemistry, by creating crystalline artificial enzymes whose solid form increases stability and allows more reaction cycles under harsher conditions.
Researchers at CEA- Irig have offered a new catalysis tool to green chemistry by creating artificial crystalline enzymes whose solid form increases stability and allows more cycles of reactions under harder conditions of use.
CEA-Irig researchers are identifying a catalyst to produce methane directly from CO2.
Researchers at the CEA-Irig and their partners have provided the first demonstration of the potential of “spin-torque nano-oscillators” for use in microwave spectrum analyzers. These ultrafast devices with their nanosecond-scale resolution are proving to perform very well.
A researcher at the CEA-Irig and his partners have demonstrated that a real (and therefore imperfect) quantum computer is several billion times easier to simulate than a perfect quantum computer! Their conclusion: before increasing the number of quantum bits, it is essential to improve their fidelity.
Researchers from the CEA-Irig and their partners in France and China are proposing a new family of asymmetric, two-dimensional materials that could produce magnetic skyrmions. These “nano-whirlpools” of magnetization hold promise for next-generation magnetic memories.
The construction of the photosynthetic apparatus in the cells of leaves of flowering plants involves subtle mechanisms. The CEA-Irig is providing some explanations.
Researchers at the CEA-Irig are proposing new magnetic structures that allow the stabilization of nanoscale “skyrmions” without the application of any external magnetic field. This represents another step towards new applications for storing and processing information.
Cells move, deform and divide. CEA-Irig researchers are gaining a better and better understanding of how. To do this, they have "cut" the contractile cables very precisely with a laser.
Microbial rhodopsins are among the proteins responsible for capturing solar energy on the Earth, especially in the seas. Researchers from CEA-Irig (IBS) have characterized the structure and function of several unique rescently disoived rhodopsins.
CEA is a French government-funded technological research organisation in four main areas: low-carbon energies, defense and security, information technologies and health technologies. A prominent player in the European Research Area, it is involved in setting up collaborative projects with many partners around the world.