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Chemistry - 27.04.2021
Structural and molecular basis of cross-seeding barriers in amyloids
Publication of CRMN in the journal PNAS on January 5, 2021. Neurodegenerative disorders are frequently associated with -sheet-rich amyloid deposits. Amyloid-forming proteins can aggregate under different structural conformations known as strains, which can exhibit a prion-like behavior and distinct pathophenotypes.

Health - Chemistry - 15.03.2021
Many Sunscreens Contain a Carcinogenic Compound
An organic sunscreen filter frequently used in sunscreens and anti-aging creams, octocrylene degrades within the bottles themselves into a known carcinogenic and endocrine disrupting compound: benzophenone.

Physics - Chemistry - 29.10.2020
Towards next-generation molecule-based magnets
Towards next-generation molecule-based magnets
Magnets are to be found everywhere in our daily lives, whether in satellites, telephones or on fridge doors. However, they are made up of heavy inorganic materials whose component elements are, in some cases, of limited availability.   Now, researchers from the CNRS, the University of Bordeaux and the ESRF (European Synchrotron Radiation Facility in Grenoble) 1 have developed a new lightweight molecule-based magnet, produced at low temperatures, and exhibiting unprecedented magnetic properties.

Chemistry - Physics - 27.08.2020
Earth may always have been wet
Earth may always have been wet
The Earth is the only planet known to have liquid water on its surface, a fundamental characteristic when it comes to explaining the emergence of life.

Health - Chemistry - 13.08.2020
The behaviour of therapeutic antibodies in immunotherapy
The behaviour of therapeutic antibodies in immunotherapy
Since the late 1990s, immunotherapy has been the frontline treatment against lymphomas where synthetic antibodies are used to stop the proliferation of cancerous white blood cells. However, in the more than 20 years since their use began, the molecular mechanisms that underlie this therapy are still little understood.

Physics - Chemistry - 17.07.2020
Chemical Thermometers Take Temperature to the Nanometric Scale
Chemical Thermometers Take Temperature to the Nanometric Scale
Scientists from the Coordination Chemistry Laboratory and Laboratory for Analysis and Architecture of Systems, both of the CNRS, recently developed molecular films that can measure the operating temperature of electronic components on a nanometric scale. These patented temperature-sensitive molecules have the distinctive quality of being extremely stable, even after millions of uses.

Life Sciences - Chemistry - 22.05.2020
Cell reproduction dogma challenged
Cell reproduction dogma challenged
Meiosis is essential to sexual reproduction. For almost 15 years, it has been commonly held that retinoic acid, a molecule derived from vitamin A, triggers meiosis in mammalian germ cells. Yet, in joint articles published in Science Advances ( 22 May 2020 ), researchers from the Institut de Biologie Valrose (CNRS / INSERM / Université Côte d'Azur) and the IGBMC (CNRS / INSERM / University of Strasbourg), with their colleagues, demonstrate that meiosis in mice begins and proceeds normally even in the absence of retinoic acid.

Astronomy / Space Science - Chemistry - 14.02.2020
Mandy Bethkenhagen receives a Marie Sk odowska-Curie European fellowship
Mandy Bethkenhagen receives a Marie Sk odowska-Curie European fellowship
The Marie Sk?odowska-Curie actions support researchers at all stages of their careers, regardless of age and nationality. Researchers working across all disciplines are eligible for funding. The MSCA also support cooperation between industry and academia and innovative training to enhance employability and career development.

Chemistry - 18.07.2019
Reactivity of shape-controlled crystals and metadynamics simulations locate the weak spots of alumina in water
Publication by Laboratoire de chimie on July 17, 2019. The kinetic stability of any material in water relies on the presence of surface weak spots responsible for chemical weathering by hydrolysis. Being able to identify the atomistic nature of these sites and the first steps of transformation is therefore critical to master the decomposition processes.

Chemistry - Physics - 21.12.2018
Fast fine art : 19th century painting tricks revealed
Fast fine art : 19th century painting tricks revealed
Paris, 9 January 2017 To paint quickly while creating exceptional texture and volume effects, J. M. W. Turner and other English artists of his generation relied on the development of innovative gels. All the rage in the 19th century—and still in use today—these compounds alter the properties of the oil paints they are combined with.

Life Sciences - Chemistry - 22.11.2018
The origins of asymmetry : A protein that makes you do the twist
The origins of asymmetry : A protein that makes you do the twist
Paris, 22 November 2018 Asymmetry plays a major role in biology at every scale: think of DNA spirals, the fact that the human heart is positioned on the left, our preference to use our left or right hand … A team from the Institute of biology Valrose (CNRS/Inserm/Université Côte d'Azur), in collaboration with colleagues from the University of Pennsylvania, has shown how a single protein induces a spiral motion in another molecule.

Life Sciences - Chemistry - 10.10.2018
Questioning the link between pollution by magnetite particles and Alzheimer’s disease
A 2016 study 1 showed that exposure to urban pollution involving magnetite particles played a role in the development of Alzheimer's disease. It began from the hypothesis that magnetite particles would generate chemical reactions that could cause oxidative stress for neurons. CNRS researchers have now called this connection into question, showing that it is very unlikely that magnetite is involved in neuron degeneration.

Chemistry - 19.09.2018
Evidence for the Extensive Conservation of Mechanisms of Ovule Integument Development Since the Most Recent Common Ancestor of Living Angiosperms
Abstract: The ovules and seeds of most angiosperm groups are enclosed by two integuments, whose evolutionary origins are considerably separated in time, as the inner integument arose over 300 million years ago (MYA) in an ancestor of all living seed plants, while the outer integument arose, perhaps as recently as 164 MYA, in an ancestor of all living angiosperms.

Chemistry - Physics - 18.09.2018
Dynamics of the excited-state hydrogen transfer in a (dG)·(dC) homopolymer: intrinsic photostability of DNA
Publication from the Chemistry laboratory in the Chemical Sciences journal on September 18, 2018. Abstract: The intrinsic photostability of nucleic acids is intimately related to evolution of life, while its understanding at the molecular and electronic levels remains a challenge for modern science.

Chemistry - Health - 05.07.2018
A molecular label : traceability for medical implants
A molecular label : traceability for medical implants
A team of researchers at CNRS, Aix-Marseille Université and Université Paris 13 has demonstrated effective molecular labelling to unequivocally identify biomedical implants, even after a prolonged period inside the living being. These results were published in Angewandte Chemie International Edition on July 5, 2018.

Health - Chemistry - 28.06.2018
A molecule that can improve the efficiency of chemotherapy
A molecule that can improve the efficiency of chemotherapy
A team of researchers from the CNRS and Université Nice Sophia Antipolis 1 has just shown that a small molecule called methiothepin can inhibit the chemotherapy resistance of certain tumors. These results will be on the cover of the July 1, 2018 issue of International Journal of Cancer . Cancerous tumors are also capable of “detoxing,” subsequently limiting the efficiency of chemotherapy.

Life Sciences - Chemistry - 11.06.2018
Alzheimer's disease : how amyloid aggregates alter neuronal function
Alzheimer’s disease : how amyloid aggregates alter neuronal function
The accumulation of amyloid peptides in the form of plaques in the brain is one of the primary indicators of Alzheimer's disease.

Astronomy / Space Science - Chemistry - 30.04.2018
The laws of star formation challenged
The laws of star formation challenged
An international team led by researchers at CNRS, Université Grenoble Alpes and the French Alternative Energies and Atomic Energy Commission (CEA) has challenged currently held ideas about star formation. The unprecedented resolution of the observations obtained using the Atacama Large Millimetre/Submillimetre Array (ALMA) enabled them to measure the quantity of high-mass star-forming cores in a remote, very active region of our Galaxy, and show that there is a higher proportion of them there than expected.

Chemistry - Physics - 10.04.2018
Cheaper, less toxic and recyclable light absorbers for hydrogen production
Cheaper, less toxic and recyclable light absorbers for hydrogen production
Mimicking photosynthesis in plants, using light to convert stable and abundant molecules like water and CO2 into a high energy fuel (hydrogen) or into chemicals of industrial interest, is a major research challenge today.

Chemistry - Physics - 29.03.2018
Polymers that mimic chameleon skin
Polymers that mimic chameleon skin
Biological tissues have complex mechanical properties – soft-yet-strong, tough-yet-flexible – that are difficult to reproduce using synthetic materials. An international team has managed to produce a biocompatible synthetic material that replicates tissue mechanics and alters color when it changes shape, like chameleon skin.
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