Articles tagged with Organic Compounds
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 have trained sniffer dogs to detect SARS-CoV-2 in airport passengers with high accuracy, comparable to PCR swab tests. The dogs' performance was found to be robust across various scenarios, including low prevalence populations, suggesting their potential for widespread use in screening.
A new NIH-funded study will investigate the effects of semi-volatile organic compounds (SVOCs) on infant and childhood immunity, filling a knowledge gap in SVOC health impacts. The research aims to identify specific SVOCs or mixtures that impair immune function, which could lead to new preventive measures and interventions.
A research team from City University of Hong Kong and Imperial College London developed a new strategy for highly efficient and stable perovskite solar cells using ferrocene molecules. The breakthrough invention can achieve efficiency of up to 25% while maintaining stability, making it a promising alternative to silicon solar cells.
Scientists developed a new porous coordination polymer that can store and release acetylene, a highly flammable industrial gas, without using solvents. The material allows for the storage of large quantities of acetylene at pressures below 2 bar.
Researchers at the University of Sheffield have identified a unique bacterial phosphatase, PafA, that can efficiently release phosphate from its organic forms. This discovery has potential to help reduce the consumption of phosphate chemical fertilisers and promote sustainable agriculture.
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.
An international team of scientists has developed an organic semiconductor that can operate in the 5G frequency range, with a structure featuring ultralow capacitance and resistance. The innovation paves the way for mass manufacturing at low cost using solution processing techniques.
Researchers at Okayama University have developed a novel 'green' synthesis technique for the production of NEt-3IB, a promising small-molecule oral drug candidate for inflammatory bowel disease (IBD). The new method produces large quantities of NEt-3IB with high purity and a total yield of over 30%, using only recoverable organic solve...
Researchers discovered that plant volatile signals can warn neighboring plants of herbivore attacks, activating defense genes and increasing resistance. The team found epigenetic mechanisms, including histone acetylation, play a key role in this process.
A zirconium oxide-supported platinum-molybdenum catalyst enables the selective conversion of esters into valuable unsymmetrical ethers under mild conditions. This process offers a sustainable solution for producing these compounds from renewable biomass-derived materials, reducing waste and energy consumption.
Biochemists analyze fermented drinks from Russia and South Africa for antioxidants, fatty acids, and volatile compounds. Kefir and ryazhenka have more diverse fatty acid profiles, while amasi has branched chain fatty acids with potential health benefits.
A new study examines the 'skunk' smell and other emissions from cannabis production, finding they can be equivalent to livestock operations. The review highlights gaps in knowledge about cannabis emissions and their impact on air quality.
A team of researchers from Skoltech and universities developed a neural network-based solution for automated recognition of chemical formulas on research paper scans. The algorithm combines molecules, functional groups, fonts, styles, and printing defects to mimic existing molecular template depiction styles.
Researchers propose a new neural network-based method to visualize chemical reactions in a 2D plane, grouping similar reactions together. The visualization helps chemists understand the global chemical reaction space and identify underused or unused reaction types.
A new study by University of Helsinki researchers shows that boreal forests can mitigate climate change through aerosol formation and growth, influencing cloud properties and regional climate. The study found that aerosol particles produced by the forests alter cloud reflectivity, potentially cooling the climate.
Researchers develop small-molecule serial femtosecond crystallography, enabling precise analysis of complex materials. The technique reveals accurate atomic structures of previously unsolvable compounds.
Researchers created a humidity sensor mimicking camel noses to detect moisture levels in industrial exhaust and human skin. The device responds to changes in skin perspiration and can even follow the path of a finger, suggesting a potential basis for touchless interfaces.
Researchers from Tokyo University of Science developed a high-quality crystalline interface using quasi-homo-epitaxial growth, which eliminated mobility issues and enabled spontaneous electron transfer. This breakthrough could lead to highly efficient flexible solar cells and wearable electronic devices.
Researchers developed a new membrane-based separation technology using MOF nanoparticles, which consumes up to 90% less energy than traditional methods. The technology overcomes interfacial adhesion problems by fabricating compatible MOF fillers, improving membrane performance.
Researchers introduce an electron linker engineering strategy to improve the performance of all-polymer solar cells. The new system shows remarkable efficiency, stability, and mechanical properties compared to traditional materials.
A study by Finnish researchers confirms that aerosols formed from plant emitted compounds make clouds more reflective, reducing solar radiation reaching the Earth's surface. This natural mechanism can slow down climate warming, with effects becoming stronger as temperature increases.
Researchers at CeMM have developed an eco-friendly process to synthesize organic materials using water instead of toxic solvents, achieving cost savings of up to 25% and improving material properties. The process involves heating molecules in water under pressure to create high-performance materials with unique structures and properties.
Scientists recreated Titan's conditions, studying properties of organic molecules ACN and PCN on the moon's surface. The findings could provide insights into Titan's surface cracking and confirm its mineral composition.
A new air-sampling system developed by researchers can detect an unprecedented range of potentially harmful airborne compounds. The system uses a special badge or pen attached to clothes or placed in a pocket to capture a broad spectrum of volatile organic compounds, allowing for more comprehensive exposure assessments.
A Georgia Tech study found that a hydroxyl radical generator in an office setting generated organic acids and secondary organic aerosols, which can cause health problems. The device was marketed to inactivate pathogens like coronaviruses, but the study highlights the need for further research on its unintended effects.
A new study by a joint Japan/US-based team has developed a machine learning technique that assesses complex organic mixtures using mass spectrometry to reliably classify them as biological or abiological. This approach may help detect extraterrestrial life with a different evolutionary history than Earth-life.
Scientists have discovered that hydroxyapatite, a mineral present in human bones, can efficiently decompose hazardous organic compounds when activated using mechanical stress. This breakthrough could lead to the development of cheap, noble-metal-free catalysts for controlling volatile organic compounds.
Researchers identified pesticide residues at 100 Swiss farms, including all organic fields, with beneficial microbes' abundance negatively impacted by their occurrence. Organic farming strategies avoid synthetic substances, yet pesticides can persist in the soil.
Researchers discovered that secondary organic aerosols can form quickly through oxidation of primary organic aerosols in humid conditions. This process may explain the decrease in secondary organic aerosol concentrations between 2013 and 2018.
Researchers developed a GaN-based MEMS resonator that maintains stability even above 600K by regulating strain caused by heat. This device is highly sensitive, small, and can be integrated with CMOS technology, making it promising for various applications including 5G communication.
Researchers developed a new photodiode that can detect circularly polarized light without a filter, enabling higher sensitivity and miniaturization. This technology has the potential to reveal previously unidentified information about object surfaces, including stress intensity and distribution.
Researchers at Hokkaido University discovered that carbon-carbon covalent bonds can expand and contract flexibly, a new phenomenon that could confer unique properties on organic compounds. The study found that these flexible bonds exhibit reversible expansion and contraction in response to external stimuli.
Researchers have fabricated organic heterostructures with enormous structural diversity and novel optical/electronical properties using polymorphism. These structures exhibit multiple output channels, structure-dependent optical signals, and good optical waveguide performance.
Research shows that concentrations of nicotine and smoking-related volatile organic compounds spike when moviegoers enter a non-smoking theater, equivalent to up to 10 cigarettes of secondhand smoke. The study highlights the need for regulation and warns of the health risks of thirdhand exposure, especially for infants and children.
Researchers have developed a new measuring method to detect sulphur-containing arsenic compounds in rice soils, which have not been accounted for in health assessments. The study identifies the need for further research on the formation and transport of these compounds to assess health risks.
Ultrafine particles (UFPs) formed through photooxidation of organic compounds are a major source of urban pollution. Existing particles inhibit new particle formation, suggesting controlling primary emissions or removing existing particles could worsen pollution.
A new study found that female grape berry moths detect a subset of volatile organic compounds emitted by grapes, as well as nearby plants like gray dogwood and apple trees. The researchers suggest that the moths use these common volatiles to find their target habitat before using other cues to locate specific berries.
Atmospheric chemists are cataloging compounds in indoor air, which can react with others to form new molecules. Indoor emissions come from various sources, including stoves, cleaning products, and people's breath, skin, and personal care products.
Researchers from Drexel University review a decade of studies on the air-purifying effects of potted plants and find that natural ventilation is far more effective at cleaning the air than plants. To compete with building air handling systems, it would take between 10 to 1,000 plants per square meter of floor space.
Researchers developed a new method for detecting volatile organic compounds (VOCs) using miniature quantum cascade lasers. The technique offers sensitive detection of low concentrations of VOCs, improving human health, industrial processes, and ambient air quality.
A new study from Carnegie Mellon University reveals that learning scientific information results in changes in the actual structure of memory-related areas of the brain. The researchers found evidence of microstructural, informational, and network change in the left hippocampus during the learning of organic compounds.
A study by San Francisco State University researchers used satellite data to track oil industry 'flaring', a practice that burns off unwanted natural gas and contributes to greenhouse gas emissions. The study found over 43,000 flares in south Texas, with most associated with fracking operations.
Researchers at the University of Groningen have developed an enzyme-based polymerization method to create a more environmentally friendly alternative to traditional polyethylene terephthalate (PET). By using a commercially available enzyme, they successfully produced furan-based copolyesters with improved properties.
Researchers at the University of the Basque Country have successfully encapsulated semiconductor nanocrystals into polymers, improving their optical properties and fluorescence control. The new method enables stable detection in biomedicine and detection of volatile organic compounds (VOCs) with high sensitivity.
A new study found that US tap water contains a mixture of contaminants, including pesticides, pharmaceuticals, and lead, which can harm public health. The researchers detected high levels of lead in 23 samples, exceeding the EPA's zero-lead goal.
A recent study published in Astrobiology found that microbes and organic compounds can survive for a year in space, suggesting interplanetary migration is possible. The Tanpopo mission exposed Deinococcus aetherius to space conditions, measuring key factors like temperature and radiation.
Researchers developed thermally and chemically durable organic frameworks with large surface areas and fluorescence properties. The new materials have wide specific surface areas and can withstand high temperatures and acidic environments.
Researchers at Michigan Technological University studied acetone degradation during advanced oxidation water treatment to understand the formation of chemical byproducts. They found over 200 reactions involved in acetone degradations, highlighting the need for models to predict byproduct production from other chemicals.
Researchers have developed a compact and sensitive nanophotonic system that can identify molecules without conventional spectrometry. The system uses metapixels to generate a unique bar code for each molecule, enabling massive analysis and classification using artificial neural networks.
Researchers developed a novel method to reconstruct ancient climates using organic compounds in sediments and soils. By analyzing these compounds, scientists can gain insights into past environmental conditions and predict changes in regional moisture patterns.
Researchers measured urban nonmethane volatile organic compound flux, finding oxygenated compounds account for a significant portion of unaccounted emissions. Current atmospheric chemistry and climate models may underestimate global anthropogenic NMVOC emissions due to this unexpected large proportion.
Researchers from Hokkaido University discovered that UV-irradiated amorphous ice exhibits liquid-like behavior at extremely low temperature ranges. The ice behaves similarly to a liquid, with a viscosity similar to that of honey or silicic magma, allowing it to facilitate the formation of organic compounds and dust accretion on planets.
Researchers at UBC Okanagan campus have identified molecules in lavender that create antimicrobial and insecticidal compounds, providing a potential solution for controlling fungal growth and pests. This discovery could lead to the development of more environmentally friendly pesticides.
Researchers found that certain house plants are effective at removing specific compounds from the air, including benzene, toluene, and formaldehyde. The study suggests that surrounding oneself with these plants can help combat the negative effects of indoor air pollution.
Researchers at Rice University have created a method for producing extremely pure levoglucosan, an organic compound with potential applications in pharmaceuticals and synthetic chemistry. The team's process is more economical and operationally simpler than existing methods, offering new possibilities for the production of LGA.
A new method for extracting, enriching and identifying chemical warfare agents from oils and organic liquids has been developed, using nanoparticles to capture the chemicals. The method can identify agents at low concentrations, overcomes challenges of detecting water-repellent agents, and has potential to save lives.
Researchers found that organic compounds from trees in pre-industrial times formed aerosols that counteracted greenhouse gas effects. The CLOUD experiment discovered a process where these low-volatility substances efficiently form new particles under atmospheric conditions, even without sulphuric acid.
Researchers discovered six VOCs responsible for bad smells on dirty clothes, which are significantly reduced after washing. The study provides new insights into the impact of washing temperatures and detergents on fabric smell, potentially leading to more environmentally friendly cleaning methods.
Researchers at Woods Hole Oceanographic Institution discover that phytoplankton, microscopic plant-like organisms, produce massive amounts of methanol in the ocean, rivaling or exceeding land-based production. This finding challenges previous thinking on oceanic methanol sources and has implications for biofuel applications.