Researchers found higher levels of pharmaceutical industry-related substances in wastewater from a manufacturing site compared to domestic wastewater treatment plants. The team detected 25 compounds, including antidepressants and opioids, in treated water samples from both facilities, with peak levels in the industrial wastewater sample.
Researchers developed a faster and more objective alternative to traditional maggot analysis methods. They created a new hierarchical conformal predictor that can distinguish between six different maggot species, revolutionizing the field of forensic entomology.
Researchers explore alternative materials to improve optical fiber's data transmission capabilities, as telecom demands grow. They discovered fluoride glass can transmit light over a wider range of wavelengths, but it is more expensive and brittle.
Researchers developed an easy-to-use sensor that can sensitively detect changes in ethylene levels, a key hormone in plant health. The sensor uses a network of single-walled carbon nanotubes to monitor fluctuations in ethylene gas levels, with high sensitivity suitable for monitoring plants in the field.
Researchers developed a biodegradable film from fish scales to create flexible electronic displays. The film was found to be transparent, flexible and environmentally friendly, dissolving in hot water and degrading within 24 days.
Researchers analyzed published scientific data on SARS-CoV-2 and related coronaviruses to identify potential therapeutic agents and vaccines. More than 500 patents have been issued for COVID-19 treatments, including antibodies and nucleic acids.
The American Chemical Society is celebrating women entrepreneurs in chemistry with a special issue, featuring 20 female pioneers who have founded companies in biotechnology, solar energy, pharmaceuticals, and more. The Trailblazers issue aims to address the gender gap in funding and promote diversity in the entrepreneurial landscape.
Researchers found that type of natural organic matter affects rate and level of arsenic release from sediments. Arsenic contamination in water can cause health issues like poisoning, cardiovascular disease, and cancer.
Researchers have discovered a potential new treatment for drug-resistant epilepsy using compounds derived from magnolia trees. The study found that extracts from the bark of Magnolia officinalis reduced seizure-like behavior in both zebrafish and mice, providing a promising lead for the development of new treatments.
Scientists used gas chromatography and sensory panel analysis to uncover volatile compounds in aged cognac, finding terpenoids for the first time. The study reveals how specific compounds enhance or suppress flavors, shedding light on aging's impact on aromas.
Researchers have developed micromotors with three engines that can be controlled separately using chemical fuel, magnets, and light. The new micromotors offer a 'myriad of controllable propulsion behaviors' and can travel at high speeds through viscous fluids like saliva and blood.
Researchers developed a new plasmonic color-mixing approach using silver nanorods to create 2,456 unique colors with smooth transitions between hues and tones. This method has potential applications in new types of paint, electronic displays and anti-counterfeiting measures.
Researchers have identified a new fluorescent compound in scorpion exoskeletons that could help guard against parasitic infections. The compound, a phthalate ester, was found to have antifungal and anti-parasitic properties, suggesting a potential defense mechanism for scorpions.
Researchers have identified cannabigerol (CBG) as a potent antibacterial agent against methicillin-resistant Staphylococcus aureus (MRSA). CBG targets the cell membrane of gram-positive bacteria, showing promise in treating MRSA infections.
Research estimates that online shopping for fast-moving consumer goods produces varying levels of greenhouse gas emissions compared to traditional and 'Bricks & Clicks' models. Shoppers can reduce their footprint by walking or biking to stores, while retailers can cut emissions by switching to electric cargo bikes.
Researchers compared serum levels of poly- and perfluorinated substances (PFAS) in female firefighters and female office workers, finding higher levels of three compounds in firefighters. Firefighters had modestly higher levels of PFNA, PFUnDA, and PFHxS, with those using firefighting foam having even higher concentrations.
Researchers have developed compounds that can block the replication of similar coronaviruses and other disease-causing viruses. The compounds target a shared protein-cutting enzyme essential for viral replication, showing strong activity against some viruses like MERS-CoV.
A US tax code rule expands a credit for companies capturing and storing CO2, driving demand for carbon capture technology. The 45Q rule rewards companies that reduce their CO2 emissions, spurring investment in pipelines and mature technologies.
Scientists develop flexible bio-butterfly-wing that converts natural sunlight into a flapping motion, producing a frequency exceeding actual butterfly wings. The device demonstrates potential applications in flying animal robots and solar energy harvesting.
Researchers are working on developing drugs that inhibit the function of NLRP3, an inflammatory protein involved in various diseases such as atherosclerosis, cancer, Alzheimer's, Parkinson's, and arthritis. Several NLRP3 inhibitors are currently in preclinical trials with varying mechanisms.
A new microfluidic chip developed by researchers can quickly identify small differences in sperm chemotactic behavior, providing a more complete picture of male fertility. The device uses a concentration gradient of progesterone to guide sperm towards the egg, offering a pump-free alternative to existing tests.
Researchers have discovered that contaminated groundwater in Balkan villages is a significant source of human exposure to aristolochic acids, potent kidney toxins. The discovery highlights the urgent need for weed control measures to reduce the incidence of Balkan endemic nephropathy.
The study found that cobalt supply is adequate in the short term, but could be affected by refining and recycling. The researchers recommend increasing efficient capacity to meet growing demand from consumer electronics and electric vehicles. By 2030, the team estimates cobalt demand will reach 235-430 thousand metric tons.
Scientists report that small altitude changes in flight paths could cut the climate impact of aircraft contrails, reducing warming effects by up to 59.3%. By targeting high-warming flights and making minor adjustments, contrail impact could be reduced by 91.8% with cleaner engines.
Scientists are developing new ways to mitigate climate change while enabling people and ecosystems to survive and thrive. Researchers are reengineering crops to increase yield and resist disease, modifying coral DNA to make reefs more resilient, and creating innovative solutions for cities to protect infrastructure from extreme weather.
Researchers have designed new quinazolinone derivatives that effectively kill brain-eating amoebae, including Naegleria fowleri and Balamuthia mandrillaris. The compounds' low toxicity for human cells makes them promising candidates for drug development.
Researchers created a potential new adhesive using poly(vinyl alcohol) to improve the adhesion of wearable sensors. The modified compound, 4C3-PVA, was found to be hydrophobic but have less tensile strength compared to other versions.
Researchers are exploring the use of ionic liquids as a more sustainable and efficient way to produce industrial materials like fibers and fuels. The unique properties of these molten salts make them an attractive alternative to traditional solvents, with potential applications in chemical synthesis, biomass refining, and energy storage.
Researchers measured PFAS in cat and dog feces, detecting 13 compounds with longer-chain perfluorocarboxylic acids being most abundant. Estimated exposure levels for pets and potentially their owners were found to be above minimal risk levels.
Researchers have discovered that ozone treatment and subsequent chlorination can convert trace amounts of some pharmaceuticals in wastewater into potentially toxic halonitromethanes. The study found that ozone treatment increased the formation of these compounds, which could be harmful to human health.
Researchers have created a fireproof solid electrolyte for lithium-ion batteries that can function well even when exposed to flames. The new material provides an energy density and performance comparable to conventional lithium-ion batteries while being significantly lighter.
Researchers have re-engineered a plant-derived compound to reduce morphine-seeking behaviors in mice, preventing relapse to opioid addiction. The new molecule inhibits a protein receptor involved in heroin dependence and prevents stress-induced relapse.
Researchers have identified 10 compounds with insecticidal activity produced by symbiotic microbes in a traditional Chinese medicinal plant, potentially leading to new natural pesticides. The substances were strongly toxic to aphids and moderately toxic to spider mites.
Researchers found a strong correlation between the intensity of fishing activities and microplastic abundance in sediment samples. Microplastics were detected even one foot below the surface, suggesting that previous studies may have underestimated ocean sediment pollution.
Researchers have developed color-changing bandages that can sense drug-resistant and drug-sensitive bacteria in wounds and treat them accordingly. The bandages change color to indicate the type of bacteria present, allowing for targeted treatment with antibiotics.
A recent nationwide monitoring campaign in China found that fine particulate matter (PM1) is strongly correlated with cardiovascular disease, with a 21% higher risk compared to larger particles. The study suggests that PM1 can more easily deposit in the lungs and circulation, increasing health risks.
Researchers developed a bioactive peptide that coats tooth surfaces to prevent cavities and heal existing ones. The peptide inhibits bacterial adhesion and promotes remineralization, offering a potential new strategy for treating tooth decay.
A study by Krista Wigginton and colleagues found that urine-derived fertilizer loses 99% of its ability to confer resistance on soil bacteria after incubation. This suggests that upcycling urine is unlikely to transfer antibiotic resistance, reducing the environmental impact of this sustainable practice.
A protein found in the bran of foxtail millet has been shown to reduce plaque buildup and inflammation in mice with genetic predispositions to atherosclerosis. The study suggests that this natural compound may have great potential in preventing and treating heart disease.
In 2019, the pharmaceutical industry approved 48 new medicines, including treatments for various cancers, sickle cell disease, and migraines. The majority of these drugs had novel mechanisms of action, such as antibody-drug conjugates and small interfering RNA.
Researchers have developed a method to link fingerprint compounds with their age, allowing for more precise timing of prints. By analyzing triacylglycerol degradation rates, scientists can estimate the time elapsed since fingerprints were left behind.
The American Chemical Society forecasts a year marked by environmental improvements, such as reducing plastic use and recycling. Regulatory actions are also expected, including updated chemical risk assessments and classification of PFAS as hazardous materials.
Researchers developed a new class of 'cool' blue pigments that are inexpensive, durable, and more environmentally friendly than traditional cobalt blue. The pigments, inspired by the crystalline structure of hibonite, show a range of intense blue colors and reflect near-infrared light.
A new method has been developed to remove harmful compounds from waste printed circuit boards. The technique, known as ball-milling, uses a rotating machine to grind up materials and reduce the presence of brominated flame retardants. By breaking down these potentially toxic substances, scientists aim to minimize environmental pollution.
Researchers found BPA exposure triggers an immune response that passes down through generations, leading to increased risk of allergic asthma. The study suggests that even after removal from the environment, descendants may still inherit changes in DNA expression that cause aberrant immune system activation.
Viral mutations can cause influenza viruses to mutate so that they can better latch onto and infect bird cells, making the immune system less effective. Cell-based vaccines offer an alternative using canine kidney cells, which are more similar to humans, increasing their effectiveness.
Researchers analyzed vaping particle size and deposition patterns in human airways, finding that larger particles are produced by higher device power settings and vegetable glycerin-based e-liquids. The study suggests similar human airway deposition patterns compared to regular smoking, despite smaller and less abundant particles.
Researchers have discovered that the nanotexture of rattlesnake scales allows water to be absorbed through beads that coalesce and stick to the surface. This adaptation enables the snakes to harvest rainwater, which is essential for their survival in desert environments with infrequent rainfall.
The American Chemical Society's Year in Chemistry 2019 special issue features top research trends, including advances in machine-learning, microplastics, and 3-D printing. Experts predict further AI advancements and greener processes for making nitrogen-based compounds and materials in 2020.
Researchers have developed a handheld, paper-based device to diagnose Lyme disease soon after infection. The assay achieved a sensitivity of 85.7% and specificity of 96.3%, making it more sensitive than existing tests and requiring only 15 minutes to complete.