Articles tagged with Chemical Compounds
Researchers have identified the genetic secrets behind skullcap's anti-cancer activity, enabling the production of synthetic compounds. The discovery is expected to lead to more sustainable and rapid synthesis of cancer-fighting molecules.
A new study by Environmental Working Group scientists reveals that consuming one serving of freshwater fish per year is equivalent to ingesting water with high levels of the toxic chemical PFOS for a month. The study analyzed data from over 500 fish samples and found median amounts of PFAS in freshwater fish to be 280 times greater tha...
Researchers at UBC identified three compounds derived from natural sources that prevent COVID-19 infection in human cells. The discovery paves the way for developing new medicines using natural sources.
A team led by prof. Sashuk created a semirotaxane molecule that can control the position of another molecule on its axis, regulating the rate of a particular chemical reaction. When exposed to blue light, the system accelerates the C-N coupling reaction by up to 5.4 times.
Researchers have created a chemical compound, Pillar[6]MaxQ (P6AS), which can counteract the effects of fentanyl and methamphetamine in lab experiments. The compound works as a molecular container, binding to drugs and reversing their biological properties.
Researchers found that oscillations between extreme wetness and aridity in California were closely linked with wildfires during the 8.2-kiloyear event. The study suggests that hydroclimate fluctuations will become more common due to global warming, leading to an increase in wildfire activity.
Researchers at Nagoya University have uncovered the mechanism behind ruthenium phosphide's transition from metal to insulator, revealing a unique crystal structure and molecular bonding. This discovery could lead to the development of faster responding sensors and smart windows that change light transmittance depending on temperature.
Researchers at the University of Texas at Dallas have developed a computer-based platform for drug discovery using topological data analysis. The approach allows for virtual screening of thousands of compound candidates, narrowing them down to the most promising ones for laboratory and clinical testing.
Researchers have identified potential new lead compounds for treating depression and anxiety disorders, which display reduced risk of drug abuse and adverse effects. These substances, derived from synthetic cathinone compounds, are known to release serotonin without significantly increasing dopamine levels in the brain.
A new controlled-release device has been tested at UMass Amherst for its effectiveness in preventing tick bites. The device uses synthetic pyrethroids to create a spatial repellent that alters the behavior of ticks, making them less likely to climb and more likely to detach or fall off. The results show promising promise in reducing th...
Researchers at MIT have developed a new approach to identify topological materials using machine learning and X-ray absorption spectroscopy. The method is over 90% accurate in identifying known topological materials and can predict properties of unknown compounds.
Researchers discovered that two approved insecticides can damage honey bees' intestinal flora, making them more susceptible to disease. The study highlights the need for rigorous research on pesticide effects on beneficial insects before approval.
Researchers discovered that plants can regulate their microbiome through the secretion of flavonoids, which affect beneficial and harmful microorganisms around plant roots. This delicate balance helps protect plants from parasitic nematodes, reducing susceptibility to infection.
A joint research team from Korea and Japan developed site-specific organelle fluorescent thermometers that visualize temperature changes in almost all typical organelles. The new thermometers, called Thermo Greens (TGs), provide quantitative images of heat generation at different organelles, offering insights into cellular processes.
Researchers at University of Göttingen develop a new method to convert CO2 into chemical substances by confining molecules in nano-sized environments. The team demonstrates the ability to break individual chemical bonds and restore them in single molecules under controlled conditions.
A POSTECH research team developed a new polymer electrolyte with different functional groups, resolving contradictions in mechanical strength and conductivity. This breakthrough enables the creation of artificial muscles that can produce fast switching and great strength.
A research group from Tokyo University of Science has discovered molecular features that govern the filling process at nanoscales, enabling finer resolutions in ultraviolet nanoimprint lithography. The findings provide valuable insights for guiding the selection and design of optimized resists for sub-10 nm resolution.
New evidence from Antarctica shows toxic fluorinated forever chemicals have increased markedly in recent decades, with scientists believing CFC-replacements are a likely source. The most abundant chemical discovered was perfluorobutanoic acid (PFBA), which has been linked to human exposure and immune system impairment.
A team of researchers from Tokyo University of Science has developed a novel multi-proton carrier complex that shows efficient proton conductivity even at high temperatures. The resulting starburst-type metal complex acts as a proton transmitter, making it 6 times more potent than individual imidazole molecules.
A new double-layered catalyst, combining platinum with NiFe hydroxide, was developed to enhance hydrogen generation efficiency. The catalyst's activity is 11.2 times higher than conventional materials, making it a promising solution for increasing green hydrogen production.
A research team from Tokyo University of Science has developed a new method to create copolymers with different metal species, which have potential uses in catalysis and drug discovery. The technique allows for controlling the composition of metal species in the resulting polymer.
A team of scientists at Tokyo University of Science has successfully produced hydrogen peroxide using spent coffee grounds and tea leaf residue. The new method, which is simple, cost-effective, and environmentally friendly, opens up new applications for unused biomass resources.
Scientists have developed a sustainable method to create valuable aroma compound mixtures from limonene, the main compound in orange peel oil. The process generates an amber-colored liquid with a pleasant odor and 17 different compounds with fruity, herbal, citrus, and resinous notes.
Researchers at Jacobs University have discovered a new class of compounds with anionic metal-oxo clusters that exhibit unique properties. The discovery has the potential to lead to breakthroughs in biomedical studies and industrial catalysis, as well as carbon dioxide reduction.
Researchers evaluated the toxicological effects of BaP on bay scallops, finding increased immune response-related parameters with time at higher concentrations. The study suggests that BaP dampens the immune response of scallops and decreases their capacity to respond to oxidative stress.
Scientists at the University of Copenhagen have discovered a new class of highly reactive chemical compounds called hydrotrioxides. Formed during atmospheric decomposition of substances like isoprene and dimethyl sulfide, these compounds are stable enough to react with other atmospheric compounds.
Researchers at Waseda University demonstrate a novel zirconocene-catalyzed epoxide ring-opening reaction under visible light, expanding the reaction scope and regioselectivity. The approach enables accessible synthesis of elusive alcohol products with improved efficiency and environmental sustainability.
Researchers develop 'Chemical logic systems' (CLSs) that can process information from light, sound, and atmospheric oxygen to execute desired outcomes. CLS-1 exhibits AND logic-gate response towards three inputs, while CLS-2 displays fast reversible dissolution of a peptide-based assembly in response to blue light irradiation.
A new sensor technology allows for real-time monitoring of lactate levels in the brain, providing insights into energy metabolism and potential applications in cancer detection. The sensors corrected for hemodynamic artifacts using MRI-informed corrections enable accurate cell-specific lactate level recordings.
A new study suggests that supplementing a diet with Ascidiacea, also known as sea squirts, reverses some main signs of aging in animal models. The researchers found that plasmalogens, vital to body processes, decrease with age and contribute to neurodegenerative diseases like Alzheimer's and Parkinson's.
Researchers at Ohio State University developed a tool to create complex compounds using electricity, streamlining chemical processes and reducing costs. The discovery has broad applications in medicine, agrichemicals, and plastics production.
Researchers developed a fluorescent molecular probe, BOS, to detect bad cooking oils, improving the detection method for highly sensitive and accurate measurement. The Bad Oil Sensing System (BOSS) is a portable platform that can be used by consumers and the food industry to monitor oil quality.
A joint research team has developed a hybrid electro-biosystem that efficiently converts CO2 to glucose and fatty acids with high titer and yield. The system combines spatially separate CO2 electrolysis with yeast fermentation, achieving an ultrapure acetic acid solution for biological fermentation.
Research reveals that tropospheric ozone contributes more to the Southern Ocean's warming than previously thought. This finding highlights the importance of reducing air pollution to mitigate ocean heat uptake and climate change.
Researchers have developed an eco-friendly and reusable solution for removing toxic synthetic dyes from wastewater using nanocomposite-based hydrogels. The new material, made from carboxymethyl cellulose (CMC) and graphene oxide, demonstrates high adsorption capacities and retains its effectiveness even after multiple cycles of use.
Researchers at George Washington University developed a novel tool to rapidly screen pesticides for safety and performance. The new approach can aid in the design of next-generation molecules to develop safer pesticides, with only 7% of analyzed compounds meeting safety criteria.
Researchers at IOPCAS have synthesized a new compound Ba6Cr2S10, exhibiting ferroelectricity due to broken space-reversal symmetry. The discovery demonstrates the realization of a 1D ferrotoroidic model in a real material, opening doors for future quantum information technology.
A massive volcanic eruption at the end of the Triassic period caused a global cooling effect, leading to the mass extinction. The event paved the way for the rise of dinosaurs as their natural predators went extinct.
A recent study found that COVID-19-derived plastic debris is contaminating marine ecosystems, with sea turtles being particularly affected. The research analyzed fecal samples from 76 sea turtles and detected the presence of face masks, which can leach endocrine-disrupting chemicals into the environment.
A team of scientists led by Samuel Dunning has developed an original technique to predict and guide the ordered creation of strong, yet flexible, diamond nanothreads. The innovation allows for easier synthesis of the material, which has potential applications in space elevators, ultra-strong fabrics, and other fields.
A new study analyzes sediment cores from the North Sea, showing a significant accumulation of pollutants since the industrial revolution. The researchers found that the deposition of pollutants is linked to fine sediments transported by currents, causing a strong accumulation on the seabed.
Researchers discovered that gut bacteria can awaken dormant viruses by producing colibactin, leading to cell-killing infections. This finding suggests a possible link between colibactin-producing bacteria and cancer, potentially benefiting the bacteria's own survival.
Researchers at University of Copenhagen find that pharmaceutical residues in sewage sludge and cattle manure do not harm soil organisms, despite concerns over environmental risks. Organic fertilizers like sludge and manure provide better soil quality than conventional mineral fertilizers.
Monitoring projects have identified a vast array of contaminants in urban stormwater, including tire- and vehicle-derived chemicals, PFAS, phosphorous, metals, and more. Researchers are exploring various strategies to address this issue, such as rain gardens, permeable pavement, and reducing chemical usage at the source.
Researchers at the University of Copenhagen found hundreds of chemical substances in tap water stored in reusable plastic bottles, including some potentially harmful to human health. The study revealed that machine washing and dishwasher use can increase the leaching of toxic substances from the plastic.
Researchers from Waseda University have developed an alternative technique, sampled current voltammetry (SCV), to accurately determine the activity of electrocatalysts used in water-splitting reactions. The study shows that SCV can provide reliable measurements of electrocatalytic performance at constant steady-state applied voltages.
Researchers at Technical University of Munich have developed a new neutron-based method to detect clogs in underwater pipelines non-destructively. This approach uses prompt gamma neutron activation analysis to measure hydrogen concentration, allowing for the detection of blockages and hydrate formation.
Researchers discover novel compound AD732 with anti-inflammatory and analgesic properties, outperforming standard NSAIDs while causing minimal harm. The compound may be a safer alternative for treating pain and inflammation in difficult diseases like ulcerative colitis and Crohn's disease.
Researchers from Osaka University have successfully grown high-quality magnetite thin films on a hexagonal boron nitride substrate without compromising the film's properties. This breakthrough enables the development of flexible spintronics devices with preserved electronic and magnetic properties.
A combined experimental and computational study published in Nature Catalysis introduces a new class of complex metal hydride catalysts that can synthesise ammonia at temperatures as low as 300°C and pressures as low as 1 bar. These catalysts have the potential to pave the way for more sustainable means of ammonia production.
Scientists from the University of Tsukuba have created a method to grow conducting polymers with magnetic properties using harmless virus particles as templates. The resulting polymer networks exhibit helical antiferromagnetic behavior, opening doors for applications in biosensors and virus detection.
Researchers studied bicyclic monoterpene alcohols' fungicidal activity against various fungi, finding (−)-myrtenol to be most promising. The compounds also showed antioxidant and membrane-protective activities, suggesting potential practical applications.
Scientists at Chalmers University of Technology have developed a new type of super-stable glass by mixing up to eight different molecules. This breakthrough material exhibits ultralow fragility and superior glass-forming ability, making it suitable for applications in display technologies, renewable energy, and pharmaceuticals.
A new study from the University of Gothenburg introduces an AI-based method to develop faster, cheaper, and more reliable information about cells using microscopy. This approach eliminates the drawbacks of traditional fluorescence microscopy by providing accurate results without damaging cells or inhibiting processes.
A team of researchers from the University of Illinois Urbana-Champaign used advanced machine learning to model the physico-chemical properties of a molten salt compound called FLiNaK, enabling accurate atomic-scale reproduction and prediction of behavior under specific reactor conditions. This computational framework can help character...
Researchers at Mainz University have conducted a literature review on cathodic corrosion in electrosynthesis, highlighting the need for new materials and methods to prevent electrode dissolution. The team aims to develop a method to generate plastic precursors from agricultural waste using electrosynthesis.
Researchers at EMPA created a flame retardant cotton textile that retains the natural properties of cotton fibers while providing fireproof and antimicrobial functionalities. The fabric does not contain carcinogenic formaldehyde and can absorb water, maintaining a favorable microclimate on the skin.
A research team has successfully fabricated single-layer tetracene molecular crystals using two-dimensional inorganic crystals as substrates. The resulting material exhibits extraordinary photostability and Davydov splitting, making it a promising candidate for OLEDs and organic photoelectric energy conversion.
High-energy-density Li–S batteries have been evaluated for their cycling lifespan, showing that considerable lithium polysulfides exist in the electrolyte despite high specific capacities. The actual capacity loss is mainly attributed to dissolved sulfur species rather than Li anode depletion.
The Stoffenmanager and Advanced REACH Tool models have significant deficiencies in their use, affecting chemical safety assessments. The models are based on subjective parameter values and lack physical principles, leading to uncertainty in exposure values.