RUDN University chemists have created the first derivatives of chitin and chitosan with selenium. The new compounds showed antibacterial and catalytic activity. A simple procedure for obtaining does not require harsh conditions.
Rare earth metals are a collection of chemically similar metallic elements that tend to occur at low concentrations in nature and can be difficult to separate from one another. They are valuable for their use in electric car motors, computer hard drives, solar panels and wind turbines. Transition metals are a class of metals that are excellent conductors of heat and electricity, often with high melting points and unique structural properties, making them essential for producing common alloys like steel and copper, as well as lithium-ion battery cathodes. Currently, most of the components carrying these metals are simply disposed of. INL’s new method to extract these valuable metals involves dimethyl ether, a gaseous compound that served as one of the first commercial refrigerants. It drives fractional crystallization — a process that divides chemical substances based on their solubility — to separate rare earth elements and transition metals from magnet wastes.
Saliva samples could soon be key to predicting the severity of someone's case of Covid-19, allowing hospitals to triage patients effectively, according to new research from the University of Surrey.
Dogs could differentiate breath and sweat samples from people before and after a stress-inducing task.
New lens design allows for atomic-resolution imaging as well as chemical analysis of critical materials
RUDN University agronomists compared the effect of iron nanoparticles and microparticles for cleaning contaminated soils. It turned out that more modern nanoparticles are in no way superior to more familiar microparticles.
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To assist with coverage of the 2022 Nobel Prize in Chemistry, the American Chemical Society (ACS) will issue a statement from ACS President Angela K. Wilson, Ph.D., after the official announcement is made on Wednesday, Oct. 5. Wilson will be available for interviews beginning at 6:15 a.m. ET.
Physicists at UC Santa Barbara and the University of Maryland, and also at the University of Washington have found an answer to the longstanding physics question: How do interparticle interactions affect dynamical localization?
One day in the not-too-distant future, the plastics in our satellites, cars and electronics may all be living their second, 25th or 250th lives.
Hokkaido University researchers find a new way of producing the industrially important propylene that is more energy efficient than existing approaches—and in the process turns carbon dioxide into another usable resource.
New research from PNNL sheds light on how crystals form using atomic force microscopy.
Scientists developed a method to make silk-based materials that refuse to stick to water, or almost anything else containing water. Molded into forms like plastic, or coated onto surfaces as a film, the silk material has nonstick properties that surpass those of commercially available nonstick surfaces.
Activated carbon is used in kitchen fans to eliminate food odours. A new dissertation from the University of Gothenburg shows that activated carbon could also eliminate the smell of urine from diapers.
Researchers from Trinity College Dublin have shed new light on the formation of increasingly precious rare earth elements (REEs) by creating synthetic rocks and testing their responses to varying environmental conditions.
How do the hundreds of individual pieces that make up viruses assemble into shapes capable of spreading disease from cell to cell?
Seeking solutions to counteract a rapid rise in plastic trash, scientists at UC San Diego have developed biodegradable material that is designed to replace conventionally used plastic. In a new study, an interdisciplinary team of researchers has shown that the material biodegrades in seawater.
A multi-institution team of researchers led by Indiana University chemist Sara Skrabalak has been awarded $1.8 million from the NSF to establish a research center focused on transforming nanocrystal discovery and design.
The oils in fingerprints degrade over time, and it’s difficult to figure out their age. Now, researchers reporting in ACS Central Science have discovered molecular markers for changes to these oils over a seven-day time period — which could be used to estimate fingerprints’ ages more accurately.
Research into the synthesis of new materials could lead to more sustainable and environmentally friendly items such as solar panels and light emitting diodes (LEDs). Scientists from Ames National Laboratory and Iowa State University developed a colloidal synthesis method for alkaline earth chalcogenides. This method allows them to control the size of the nanocrystals in the material and study the surface chemistry.
Microporous conductive membranes developed at KAUST are expected to help shape the future of microbial electrosynthesis for CO2 conversion technologies.
Nitrogen may not get the same level of attention as its neighbors on the periodic table, carbon and oxygen. But like its neighbors, it’s an element we can’t live without.
Until now, scientists have wondered whether some AMG proteins play a role in critical soil processes, like carbon cycling. To find out more about soil AMGs, researchers determined the atomic structure of a protein that is expressed by a particular AMG.
The ideal crop plant is tasty and high-yielding while also being resistant to diseases and pests. But if the relevant genes are far apart on a chromosome, some of these positive traits can be lost during breeding. To ensure that positive traits can be passed on together, researchers at Karlsruhe Institute of Technology (KIT) have used CRISPR/Cas molecular scissors to invert and thus genetically deactivate nine-tenths of a chromosome. The traits coded for on this part of the chromosome become “invisible” for genetic exchange and can thus be passed on unchanged. The researchers have reported on their findings in Nature Plants (DOI: 10.1038/s41477-022-01238-3).
Thank the rare crested ibis for a clue that could someday help our bodies make better drugs.
Materials scientist Pietro Papa Lopes was named a 2022 “Rising Star” by the American Chemical Society.
A team of researchers from the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory and Stony Brook University have devised a new quantum algorithm to compute the lowest energies of molecules at specific configurations during chemical reactions, including when their chemical bonds are broken.
A research team funded by the National Institutes of Health has shown that commercially available rapid antigen tests can detect past and present variants of concern and has identified potential mutations that may impact test performance in the future.
Data suggests a previously unobserved relationship between body temperature and REM sleep, with REM sleep appearing to act like a "thermostatically controlled brain heater.”
On behalf of the nation's radiation oncologists and the more than one million people with cancer they will treat this year, the American Society for Radiation Oncology (ASTRO) applauded today's House passage of bipartisan federal legislation that would rein in restrictive prior authorization practices that delay patient access to critical cancer treatments.
Scientists have harnessed the potential of bacteria to help build advanced synthetic cells which mimic real life functionality.
The equations of quantum mechanics require too much computer time and power when used to predict behavior in large systems. Researchers have now shown that machine learning models can mimic the basic structure from first principles, which can be very difficult to simulate directly. The result is predictions that are easy to compute and are accurate in a wide range of chemical systems.
New technology developed by South Australian scientists is tracking the origins of seafood in a bid to combat fraudulent labelling and improve sustainability. Chemical fingerprints found in the bones and shells of marine life is key to knowing which ocean they come from.
The September issue of SLAS Discovery is now available open access on ScienceDirect.
Researchers at Queen’s University Belfast have developed a ground-breaking plastic film that can kill viruses that land on its surface with room light.
A team of researchers has discovered a way to convert 100% of carbon dioxide captured from industrial exhaust into ethylene, a key building block for plastic products.
Many of us are probably all too familiar with how strain in work relationships can impact performance, but new research shows that materials in electricity-producing fuel cells may be sensitive to strain on an entirely different level.
A team of researchers from Chula’s Faculty of Science has discovered extracts from young durians with as high anti-oxidants as vitamin C that help moisturize the skin with UV protection. They aim to produce skin care products as a way to help farmers to add value to their agricultural waste.
Mount Sinai researchers have produced a high-resolution crystal structure of an enzyme essential to the survival of SARS-CoV-2, the virus that causes COVID-19. The discovery could lead to the design of new antivirals to combat current and future coronaviruses.
The latest research and expert commentary on pain management.
The natural world possesses its own intrinsic electrical grid composed of a global web of tiny bacteria-generated nanowires in the soil and oceans that “breathe” by exhaling excess electrons.
Rensselaer Polytechnic Institute Professor Catherine Royer will be honored as a 2023 Society Fellow of the Biophysical Society. Royer is a Chaired Constellation Professor in Biocomputation and Bioinformatics; professor of biological sciences, and chemistry and chemical biology; and director of the graduate program in biochemistry and physics.
Story tips from Oak Ridge National Laboratory.
A team of scientists from the Kola Science Centre of the Russian Academy of Sciences and St Petersburg University has discovered a new mineral in the Kester deposit in the Verkhoyansky District, the Republic of Sakha (Yakutia). This could become the basis for developing super-capacity batteries.
A groundbreaking mathematical equation has been discovered, which could transform medical procedures, natural gas extraction, and plastic packaging production in the future.
To better understand how thermoelectric devices convert thermal energy into electricity at the atomic scale, researchers used neutrons to study single crystals of tin sulfide and tin selenide. The results revealed a strong correlation between changes in the structure at certain temperatures and the frequency of atomic vibrations (phonons). This allowed the researchers to identify temperatures ideal for energy conversion and provided basic scientific knowledge for designing new thermoelectric materials.
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