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Chemistry
Results 101 - 120 of 301.
Environment - Chemistry - 20.09.2022
Mirror molecules reveal drought stress in forests
Changes in ecosystems can be predicted more accurately via emissions of chiral compounds Worldwide, plants release about 100 million tonnes of monoterpenes into the atmosphere. These volatile organic molecules include many fragrances such as the molecule pinene, known for its fresh pine scent. Since these molecules are very reactive and can form tiny aerosol particles that can grow into condensation nuclei for raindrops, natural emissions play an important role in our climate.
Life Sciences - Chemistry - 20.09.2022
Insights into two rare types of photosynthesis could boost crop production
Researchers have studied how certain bacteria perform photosynthesis using low-energy light, which could be engineered into crops to boost production. By studying the way two bacteria perform the difficult chemistry of photosynthesis, a team led by researchers have discovered the trade-offs they make when using lower-energy light.
Health - Chemistry - 20.09.2022
New radiolabelling method for personalised cancer treatment
Researchers from TU Delft have found a new method to efficiently make nano carriers loaded with radioactive salts for both medical imaging and treatment. Because the assembly of these nano carriers is incredibly simple, the innovation is very suitable for clinical research and treatments of cancer patients.
Chemistry - 19.09.2022
Proving safety of chemicals without animal studies
New research by, among others, Hans Bouwmeester (Toxicology) and Phil Macnaghten (Knowledge, Technology and Innovation) of Wageningen University & Research, revolves around the value we attach to animal testing. The results of animal-free results are not always (legally) accepted, which means that animal testing is still necessary.
Chemistry - Physics - 15.09.2022
Pushing the boundaries of chemistry: Properties of heaviest element studied so far measured at GSI/FAIR
Superheavy element flerovium is a volatile metal An international research team has succeeded in gaining new insights into the chemical properties of the superheavy element flerovium - element 114 - at the accelerator facilities of the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt. The measurements show that flerovium is the most volatile metal in the periodic table.
Materials Science - Chemistry - 14.09.2022
New phases of water detected
One way to visualise this phase is that the oxygen atoms form a solid lattice, and protons flow like a liquid through the lattice, like kids running through a maze Venkat Kapil Scientists at the University of Cambridge have discovered that water in a one-molecule layer acts like neither a liquid nor a solid, and that it becomes highly conductive at high pressures.
Chemistry - Physics - 14.09.2022
New Oxidation State of Rhodium
Previously unknown oxidation state of rhodium(VII) could play a role in chemical reactions Mayara da Silva Santos , doctoral candidate at the University of Freiburg's Institute of Physics, has discovered a new oxidation state of rhodium. This chemical element is one of the most catalytically important platinum-group metals and is used, for example, in catalytic converters for automobiles.
Life Sciences - Chemistry - 13.09.2022
How animals use their circalunar clock to control sexual maturation and reproduction
International research team deciphers molecular mechanism that allows bristle worms to discriminate between sunand moonlight How animals are able to interpret natural light sources to adjust their physiology and behavior is poorly understood. The labs of biologists Professor Eva Wolf of Johannes Gutenberg University Mainz (JGU) and the Institute of Molecular Biology in Mainz and Professor Kristin Tessmar-Raible of the Max Perutz Labs in Vienna,
Chemistry - 13.09.2022
Reactor that can destroy ’forever chemicals’
"Forever chemicals,” named for their ability to persist in water and soil, are a class of molecules that are ever-present in our daily lives, including food packaging and household cleaning products. Because these chemicals don't break down, they end up in our water and food, and they can lead to health effects, such as cancer or decreased fertility.
Chemistry - Physics - 12.09.2022
When the chemistry is (not) right: Influence of the microscopic environment
Research team investigates reactivity of single molecules under controlled conditions Researchers around the world are working to develop efficient materials to convert CO2 into usable chemical substances. This is especially important in light of global warming. A team from the University of Göttingen and the Ulsan National Institute for Science, South Korea, has found a promising approach: Catalytically active molecules are anchored to a surface that serves as a conductive electron supplier.
Chemistry - Physics - 12.09.2022
Making and breaking of chemical bonds in single ’nanoconfined’ molecules
Research team investigates reactivity of single molecules under controlled microscopic conditions Researchers around the world are working to develop efficient materials to convert CO2 into usable chemical substances - work that is particularly pressing in view of global warming.
Chemistry - Environment - 09.09.2022
Ammonia: ’a trump card for the energy transition process’
During his internship as a Chemical Technology student at Danish company Haldor Topsøe, UT PhD researcher Kevin Rouwenhorst realised the many opportunities offered by ammonia. At the moment, it is principally used to manufacture artificial fertiliser and therefore has a bad name. But ammonia is also one of seven chemicals that form the basis of all chemical products, and it helps to feed around 50% of the world's population.
Chemistry - Environment - 08.09.2022
Research team investigating ’forever chemicals’ in water systems
Researchers at Western's Institute for Chemicals and Fuels from Alternative Resources (ICFAR) a nd collaborators from academia, government and industry are identifying and treating 'forever chemicals' in water systems, an ever-increasing environmental concern which affects more than 2.5 million Canadians.
Physics - Chemistry - 07.09.2022
Researchers study catalytic activity of copper atoms
Fuel cells convert chemical reaction energy into electric power and heat. They are used, for example for the development of electric vehicles, in aviation and aeronautics or for sustainable energy supplies. During the conversion of energy, the catalytic reduction of oxygen plays an important role. Therefore, the development of efficient, inexpensive catalysts is extremely important.
Health - Chemistry - 07.09.2022
Parkinson’s breakthrough can diagnose disease from skin swabs in 3 minutes
A new method to detect Parkinson's disease has been determined by analysing sebum with mass spectrometry. The study, published today in the Journal of the American Chemical Society , have found that there are lipids of high molecular weight that are substantially more active in people suffering from Parkinson's disease.
Physics - Chemistry - 07.09.2022
Pipes two million times smaller than an ant
Working on microscopic pipes only a millionth as wide as a single strand of human hair, Johns Hopkins researchers have engineered a way to ensure that these tiniest of pipes are safe from the tiniest of leaks. Leak-free piping, made with nanotubes that self-assemble, self-repair, and can connect themselves to different biostructures, is a significant step toward creating a nanotube network that one day might deliver specialized drugs, proteins, and molecules to targeted cells in the human body.
Chemistry - Life Sciences - 06.09.2022
New reaction facilitates drug discovery
Chemists at ETH Zurich have found a facile method that allows a commonly used building block to be directly converted into other types of important compounds. This expands the possibilities of chemical synthesis and facilitates the search for new pharmaceutically active ingredients. Medications are continuously becoming more precise and efficient.
Chemistry - Environment - 05.09.2022
Combining forces for the energy transition
The Paul Scherrer Institute PSI and the start-up AlphaSYNT have a common mission. By signing a cooperation and licensing agreement, they aim to commercialise a novel approach to "power-to-gas" conversion, or to be more specific: "power-to-methane". The innovative methanation process developed by PSI will allow energy to be stored as methane gas in future.
Chemistry - Environment - 02.09.2022
Rethinking indoor air chemistry
People generate their own oxidation field and change the indoor air chemistry around them People typically spend 90 percent of their lives inside, at home, at work or in transport. Within these enclosed spaces, occupants are exposed to a multitude of chemicals from various sources, including outdoor pollutants penetrating indoors, gaseous emissions from building materials and furnishings, and products of our own activities such as cooking and cleaning.
Materials Science - Chemistry - 02.09.2022
Mechanism and Effects on Battery Cell Processes Elucidated
In order to exploit the promising potential of silicon (Si) as anode material in lithium-ion batteries (LIBs), it is necessary to overcome existing challenges such as capacity losses during battery operation. A team from MEET Battery Research Center, BACCARA International Graduate School at the University of Münster, and Helmholtz Institute Münster of Forschungszentrum Jülich demonstrated that coating silicon thin-film anodes with aluminum fluoride (AlF 3 ) leads to an enhanced cycling stability.
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