Lithium needs to be taken in just the right amount to be effective. Today, scientists report the development of a tiny sensor that detects lithium levels noninvasively from sweat on a fingertip in about 30 seconds. The researchers will present their results at ACS Fall 2022.
To capture as much information as possible about clouds of atoms at the heart of the MAGIS-100 experiment, SLAC scientists devised a dome of mirrors that gathers more light from more angles.
The flash of lightning and the dance of auroras contain a fourth state of matter known as plasma, which researchers have harnessed to produce a gas that may activate plant immunity against wide-spread diseases.
Metallic glass is an important advanced alloy, holding promise for broad engineering applications.
Phthalocyanines dyes can be produced with solid-state synthesis instead of high- boiling organic solvents.
Researchers have developed floating ‘artificial leaves’ that generate clean fuels from sunlight and water, and could eventually operate on a large scale at sea.
Lithophane is an ancient artistic medium but never used to represent scientific data and imagery in a quantitative, controlled manner for tactile visualization and integration. Lithophane combined with 3D printing is turning scientific data into tactile graphics for all to see by eyesight or touch.
RUDN chemists obtained substances with high antibacterial activity based on chitosan and selenium. One of them even outperformed common antibiotics
UPTON, NY--Scientists studying a COVID-19 coronavirus enzyme at temperatures ranging from frosty to human-body warm discovered subtle structural shifts that offer clues about how the enzyme works. The findings, published in IUCrJ, the journal of the International Union of Crystallography, may inspire the design of new drugs to counteract COVID-19 -- and possibly help head off future coronavirus pandemics.
This Review paper is published in Science China Chemistry by Dr. Hu-Rong Yao (Fujian Normal University), Dr. Lituo Zheng (Fujian Normal University), Prof. Sen Xin (Institute of Chemistry, Chinese Academy of Sciences) and Prof. Yu-Guo Guo (Institute of Chemistry, Chinese Academy of Sciences).
A research group headed by Senior Researcher Jianwei Li at the MediCity Research Laboratory in Finland has explored a new type of materials called supramolecular plastics that would substitute the conventional polymeric plastics with an eco-friendlier material promoting sustainable development.
Researchers have devised a plasma-based way to produce and separate oxygen within the Martian environment. It's a complementary approach to NASA's Mars Oxygen In-Situ Resource Utilization Experiment and may deliver high rates of molecule production per kilogram of instrumentation sent to space. In the Journal of Applied Physics, the team presents the method for harnessing and processing local resources to generate products on Mars.
A study shows that cancer cells don't want to waste glucose, they just consume it too quickly. The normal pathways for transporting fuel within the cell get saturated. The discovery was made possible with metabolomics, which allowed Gary Patti and his team at Washington University in St. Louis to observe the speed at which small molecules move through cells.
If science and nature were to have a baby, it would surely be the zeolite. This special rock, with its porous structure that traps water inside, also traps atoms and molecules that can cause chemical reactions.
Researchers from the Manchester Institute of Biotechnology (MIB) have developed a new enzyme engineering platform to improve plastic degrading enzymes through directed evolution.
Stephen Klippenstein was chosen to deliver the Royal Society of Chemistry’s Spiers Memorial Lecture. The lecture is one of the society’s top honors.
RUDN chemists with colleagues from Iran have created 12 nanocatalysts that make it possible to obtain complex hydrocarbons under the action of sunlight
Humankind has maintained an enduring fascination with the Moon.
Epidemiologists and public health officials have a new predictive tool to analyze the course of pandemics, thanks to a mathematical formula derived by a University of Alabama in Huntsville (UAH) professor in partnership with a collaborator who is a UAH alumnus.
Researchers at Aalto University have developed a bio-based adhesive that can replace formaldehyde-containing adhesives in wood construction.
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Drugs called interferon betas are common treatments for multiple sclerosis. Interferon beta, a protein known to contain a zinc-binding pocket, is thought to reduce proinflammatory molecules in MS patients. But researchers now report in ACS Chemical Neuroscience that the molecule reduces the binding of three components — zinc, C-peptide and albumin — to red blood cells.
Urinary tract infections are common, yet can be tough to treat as the bacteria that cause them become resistant to many antibiotics. In ACS Central Science, researchers report a new molecule that inhibits drug-resistant bacteria in lab experiments, as well as in mice with pneumonia and UTIs.
ROCKVILLE, MD – Gabriela K. Popescu has been elected President-elect of the Biophysical Society (BPS). She will assume the office of President-elect at the 2023 Annual Meeting in San Diego, California and begin her term as President during the 2024 Annual Meeting in Philadelphia, Pennsylvania. Popescu is a Professor of Biochemistry at the Jacobs School of Medicine and Biomedical Sciences at the University of Buffalo, State University of New York (SUNY).
Below are some of the latest articles that have been added to the Food Science channel on Newswise, a free source for journalists.
Like a fire in a wall, fires in electric vehicle (EV) batteries burn unseen. Firefighters can squelch the visible flames in an EV fire, but chemicals inside the battery continue to burn because firefighters cannot reach the source. Researchers at Missouri S&T are working with mine operators and firefighting agencies to plan for and mitigate EV fire risks.
“With this study, we showed there is actually no microscopic evidence of zinc reinsertion into manganese dioxide, and what was previously thought to be indicators of recharging was from positively charged hydrogen ions being inserted in the manganese, not zinc.”
Researchers determine the structure and dynamics of proteins using NMR (Nuclear Magnetic Resonance) spectroscopy. Until now, however, much higher concentrations were necessary for in-vitro measurements of the biomolecules in solution than found in our body's cells. An NMR method enhanced by a very powerful amplifier, in combination with molecular dynamics simulation, now enables their detection and accurate characterization at physiological concentrations. This is reported by Dennis Kurzbach chemist at the University of Vienna and his colleagues in the journal "Science Advances". The team demonstrated their new method with the example of a protein that influences cell proliferation and thus also potential tumour growth.
Crystals consisting of wildly mixed ingredients - so-called high-entropy materials - are currently attracting growing scientific interest. Their advantage is that they are particularly stable at extremely high temperatures and could be used, for example, for energy storage and chemical production processes. An Empa team is producing and researching these mysterious ceramic materials, which have only been known since 2015.
Computer simulations are most often used as a guide, so chemists can more efficiently work out the exact details of a general reaction idea they have in mind — much like a compass helps guide an explorer efficiently to a destination on their map.
Despite being some of the most versatile building blocks in organic chemistry, compounds called carbenes can be too hot to handle. In the lab, chemists often avoid using these highly reactive molecules due to how explosive they can be. Yet in a new study, published today in the journal Science, researchers from The Ohio State University report on a new, safer method to turn these short-lived, high-energy molecules from much more stable ones.
The production of ammonia, a major ingredient in fertilizers, involves greenhouse gas emissions. Scientists at Argonne have quantified ways to reduce carbon impacts in this process.
Journalists who register for the fall meeting of the American Chemical Society will have access to nearly 11,000 presentations on topics including food, energy, pollution mitigation, health and more. ACS Fall 2022 is a hybrid meeting being held virtually and in-person in Chicago on Aug. 21–25.
Excessive carbon dioxide emissions from fossil fuel consumption lead to serious climate and environmental problems, such as increasing global average temperature and sea-level rise.
The proteins that make up our cells hold within an entire world of information, which, when unlocked, can give us insights into the origins of many essential biological phenomena.
Efficient adsorbents for industrial wastewater treatment are important to minimize potential environmental damage. In particular, organic dyes, as a significant group of industrial pollutants, are usually highly water soluble, non-degradable and many are toxic to carcinogenic. Changxia Li and Freddy Kleitz from the Faculty of Chemistry of the University of Vienna together with colleagues now presented a new approach to design an innovative composite material, consisting of a nanoporous, ultrathin covalent organic framework (COF) anchored on graphene, that is highly efficient at filtering organic pollutants from water. The study was published in “Angewandte Chemie”.
At-home COVID-19 tests have become an easy way to self-diagnose. But current tests have drawbacks. Now, researchers reporting in ACS Sensors have developed a SARS-CoV-2 saliva assay and prototype device that combine speed and ease with high sensitivity.
Researchers reporting in ACS Applied Materials & Interfaces have developed a color-changing film that consumers can stick onto foods and easily analyze nitrite levels by snapping a picture with a smartphone.
Researchers at the University of Wisconsin–Madison have described the way an enzyme and proteins interact to maintain the protective caps, called telomeres, at the end of chromosomes, a new insight into how a human cell preserves the integrity of its DNA through repeated cell division. DNA replication is essential for perpetuating life as we know it, but many of the complexities of the process — how myriad biomolecules get where they need to go and interact over a series of intricately orchestrated steps — remain mysterious.
Nonionic surfactants are molecules with both hydrophobic and hydrophilic components, which lets them interact both with hydrophilic liquids like water as well as hydrophobic liquids like oil. This surface-active property makes them invaluable in enhanced oil recovery, where they can be used to greatly increase oil yields. During the 72nd ACA meeting, Thomas Fitzgibbons, of Dow, will detail how nonionic surfactants behave under the high-pressure conditions found in oil wells; adding nonionic surfactants to the injection fluid can help in several ways.
Chemists at the University of Münster have developed a novel and straightforward way to produce complex organic molecules.
Thanks to their low toxicity, chemical stability, and remarkable electrical and optical properties, carbon-based nanomaterials are finding more and more applications across electronics, energy conversion and storage, catalysis, and biomedicine.
Engineers have been awarded $1 million to build a system that selectively removes and destroys poly- and perfluorinated substances, commonly called PFAS. PFAS are man-made chemicals found in many common materials, and the grant will support the team’s work for three years.
Griffith University researchers have discovered a genetic switch in a common bacterium that helps defend itself against the human body’s natural immune system.
Birmingham scientists have revealed a new method to increase efficiency in biocatalysis, in a paper published today in Materials Horizons.
JMIR Publications recently published "Diagnostic Accuracy of an At-Home, Rapid Self-test for Influenza: Prospective Comparative Accuracy Study" in JMIR Public Health and Surveillance which reported that rapid diagnostic tests (RDTs) for influenza used by individuals at home could potentially expand access to testing and reduce the impact of influenza on health systems. Improving access to testing could lead to earlier diagnosis following symptom onset, allowing more rapid interventions for those who test positive, including behavioral changes to minimize spread.
Here are some of the latest articles that have been added to the Drug Resistance channel on Newswise, a free source for journalists.
Halide perovskite can make solar cells a thousand times thinner than today’s silicon solar cells. A new approach allows scientists to watch changes in the material’s structure and functional properties while the material solidifies into a thin film from solution. This gives new insight into how the material’s structure and functionality are related, aiding in future solar cell design.
Previously, it has been impossible to capture the high-resolution images of nitrogenase during catalytic action. Now, for the first time, researchers at UC San Diego report near-atomic-resolution snapshots of nitrogenase during catalysis using cryogenic electron microscopy (cryoEM).
AACC welcomed thousands of medical professionals and healthcare leaders to the 2022 AACC Annual Scientific Meeting & Clinical Lab Expo from July 24-28. The meeting featured groundbreaking diagnostic advances that will solve challenging patient health problems, and affirmed just how essential laboratory medicine professionals are to patient safety and care.
The 2023 EuroMedLab Congress will feature innovative and diverse education opportunities, including lectures, symposia, recent advancements in clinical practice and science, poster presentations, and industry exhibits, as well as an excellent social program
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