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Chemistry
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Chemistry - 23.10.2024
New method for producing innovative 3D molecules
Research team at the University of Münster synthesizes three-dimensional ring structures as a possible alternative to biologically active flat rings Their shape is reminiscent of a cage, and this three-dimensional structure makes them significantly more stable than related flat molecules. Ring-shaped "cage molecules" are therefore a possible alternative to conventional molecular rings from the group of aromatic compounds and are of interest for drug development.
Pharmacology - Chemistry - 23.10.2024
A ’chemical ChatGPT’ for new medications
Researchers from the University of Bonn have trained an AI process to predict potential active ingredients with special properties. Therefore, they derived a chemical language model - a kind of ChatGPT for molecules. Following a training phase, the AI was able to exactly reproduce the chemical structures of compounds with known dual-target activity that may be particularly effective medications.
Chemistry - Health - 17.10.2024
Effects of chemical mixtures: Neurotoxic effects add up
Chemicals are omnipresent today: they enter our bodies through food, air or the skin. But how do these complex mixtures of chemicals affect our health? In a study published in the journal Science, a research team from the Helmholtz Centre for Environmental Research (UFZ) and the University of Tübingen has shown that chemicals that occur in complex mixtures and in concentration ratios as found in humans act together.
Chemistry - Physics - 16.10.2024
Mechanism of Cobalt-Manganese Catalysts Deciphered
The energy carrier hydrogen can be obtained from water by electrolysis. This works particularly well with Cobalt spinel electrocatalysts containing manganese. However, it was unclear why. Conventional catalysts for hydrogen production via water electrolysis usually contain precious metals and are expensive.
Chemistry - Life Sciences - 10.10.2024
Researchers can measure distances in molecules optically
MINFLUX microscopy allows the determination of distances within biomolecules using an optical microscope A team led by physicists Steffen Sahl and Stefan Hell at the Max Planck Institute for Multidisciplinary Sciences in Göttingen and the Max Planck Institute for Medical Research in Heidelberg has succeeded in measuring distances within biomolecules using a light microscope, down to one nanometer and with Éngström precision.
Chemistry - Physics - 08.10.2024
New Insights into Ammonia Decomposition
Using ammonia is regarded as a promising method of transporting hydrogen. However, an efficient process is also needed to convert it back into hydrogen and nitrogen. An international research team has gained new insights into the mode of operation of an iron catalyst that can be used to split ammonia into nitrogen and hydrogen.
Chemistry - Physics - 04.10.2024
Innovative catalyst produces methane using electricity
A study by the Universities of Bonn and Montreal opens up new ways to produce important chemical compounds Researchers at the University of Bonn and University of Montreal have developed a new type of catalyst and used it in their study to produce methane out of carbon dioxide and water in a highly efficient way using electricity.
Environment - Chemistry - 23.09.2024
Heavy Metal Pollution, Herbicide, Microplastics: Anthropogenic Factors in Soil Ecosystems Have Greater Impact the More Dissimilar and Numerous They Are
Researchers from Freie Universität Berlin examine the effects of multiple, co-acting global change factors on soil biota and functions in new "Nature Communications" study A research team from Freie Universität Berlin has discovered that soil properties are severely impacted when subjected to a large number of different environmental stressors.
Environment - Chemistry - 16.09.2024
How is the hole in the ozone layer?
In 1974, scientists first sounded the alarm about the destruction of the ozone layer caused by human activities. Yet it would take several more years for the global community to reach a consensus on banning ozone-depleting chemicals. At the time, Paul Crutzen and his research team played a pivotal role in bringing this issue to the world's attention.
Life Sciences - Chemistry - 12.09.2024
A Glimpse into the Chloroplast Workshop
It takes a lot of helpers to build up the protein complexes required for photosynthesis and to constantly repair them in strong light. Photosynthesis takes place before our eyes every day in every single little green leaf - yet the details of the complex process have not yet been fully understood. A research team at Ruhr University Bochum headed by Professor Danja Schünemann has unravelled another piece of the puzzle.
Chemistry - Environment - 10.09.2024
Fundamental Knowledge for Sustainable Energy
A team of researchers from Jena and Ulm have developed an innovative approach to precisely influence the properties of light-absorbing materials, so-called chromophores. They focused on specific iron compounds, demonstrating that small changes in their chemical structure can control how these compounds react to light.
Life Sciences - Chemistry - 09.09.2024
New Molecular Engineering Technique Allows for Complex Organoids
Interdisciplinary research team uses DNA microbeads to control the development of cultivated tissue A new molecular engineering technique can precisely influence the development of organoids. Microbeads made of specifically folded DNA are used to release growth factors or other signal molecules inside the tissue structures.
Health - Chemistry - 29.08.2024
New Chemical Tool Developed for Infection Research
Researchers from Würzburg and Berlin present a new molecule for visualising the sphingomyelin metabolism. This offers prospects for innovative therapeutic approaches in infection research. At the end of the 19th century, the German pathologist Ludwig Thudichum isolated previously unknown fatty substances (lipids) from the brain.
Environment - Chemistry - 25.08.2024
Forever young
A team of scientists from the Cluster of Excellence "Balance of the Microverse" has discovered a previously unknown rejuvenation mechanism in unicellular organisms. They studied unicellular microalgae, which serve as the basis of food chains in the oceans. Unicellular organisms, such as microalgae, also age when they can no longer divide due to a lack of nutrients.
Chemistry - Health - 23.08.2024
Synthetic polymers against fungal infections
When combined with antifungal drugs, synthetic polymers are particularly effective against the yeast Candida albicans . This is what a German-Australian research team found out and also clarified the mechanism of action behind it. The researchers presented their findings in the journal "Nature Communications".
Chemistry - 13.08.2024
New Insights Into Exsolution Catalyst Fabrication Published
Journal of the American Chemical Society Features RWTH Research on Catalyst Innovation Catalysts made from solid materials are used to produce approximately 90 percent of industrially important chemicals. A key type of such catalysts consists of nano-sized metal particles finely dispersed on an oxide support.
Chemistry - Health - 13.08.2024
Peptide Boronic Acids: New Prospects for Immunology
Chemists and pharmaceutical scientists at Heidelberg University develop an innovative process for producing these biologically active compounds A cutting-edge chemical process is the first to make it possible to quickly and easily produce modified peptides with boronic acids. It was developed by scientists from the Institute of Organic Chemistry and the Institute of Pharmacy and Molecular Biotechnology at Heidelberg University.
Chemistry - Physics - 13.08.2024
Vastly increased potentials for oxidation with modified solvents
A team of scientists headed by Professor Ingo Krossing from the Department of Inorganic Chemistry at the University of Freiburg has succeeded in significantly increasing classic reagents' potential for oxidation. A team of scientists headed by Professor Ingo Krossing , Professor of Molecular and Coordination Chemistry at the University of Freiburg's Institute of Inorganic and Analytical Chemistry, has succeeded in significantly increasing the potential for oxidation of and positive ions.
Physics - Chemistry - 12.08.2024
Local Solvation is Decisive for Fluorescence of Biosensors
Nanotubes can serve as biosensors. They change their fluorescence when they bind to certain molecules. Until now, it was unclear why. Researchers have gained new insights into the cause of the fluorescence. Researchers from Bochum and Texas have discovered why carbon nanotubes fluoresce when they bind to certain molecules.
Materials Science - Chemistry - 09.08.2024
3D Laser Printing with Bioinks from Microalgae
Heidelberg researchers successfully develop a new generation of biocompatible materials for additive manufacturing Microalgae such as the diatom Odontella aurita and the green alga Tetraselmis striata are especially suitable as "biofactories" for the production of sustainable materials for 3D laser printing due to their high content in lipids and photoactive pigments.
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