Articles tagged with Manganese
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Researchers at KTH Royal Institute of Technology developed an ultrasound-assisted extraction method for valuable metals from electric car batteries, reducing extraction time by 50% and increasing metal ion recovery. The new process uses gentler acids and eliminates the need for harsh chemicals.
Rice chemist Julian West and graduate student Yen-Chu Lu discovered manganese as a more efficient catalyst for synthesizing fluoroketones, precursor molecules for drugs. The use of manganese reduces material costs and simplifies purification.
Researchers have determined the structure of a molecule that helps S. pneumoniae take up manganese, a mineral essential for its survival. This finding could aid in designing new drugs to block this pathway and deny the bacteria its manganese supply.
Researchers at the University of Basel have developed new luminescent manganese complexes with promising properties, including improved efficiency and stability. These findings offer a potential solution for more sustainable energy production and could lead to the creation of water-soluble variants for medical applications.
The study reveals that frog eggs release zinc and manganese sparks after fertilization, indicating a shared biology between humans and frogs. The research has implications for understanding the interplay of dietary zinc status and human fertility.
Researchers have solved a long-standing debate about the origin of rock varnish in deserts by attributing its formation to microbial communities that use manganese to combat the desert sun. The study used advanced techniques such as X-ray spectroscopy and DNA sequencing to understand how these ecosystems interact with rock varnish.
A study found that children exposed to higher levels of selenium and manganese during pregnancy had lower blood pressure in childhood. Manganese also protected against the hypertensive effect of cadmium, a toxic heavy metal.
A study by Tanja Stratmann and colleagues found that sponges attached to manganese nodules provide a habitat for numerous animal species, including small worms, crabs, and clams. Removal of the nodules would disrupt this ecosystem, leading to a significant reduction in animal diversity.
A team of researchers from the University of Freiburg has developed a non-aqueous All-Manganese Flow battery with a long cycle life, achieving an energy density roughly twice that of previous batteries. The new design uses sustainable manganese as its active material and has shown promising results for stationary energy storage.
Researchers from Hefei Institutes of Physical Science created three manganese oxides with different Mn valences for high-capacity capacitive desalination. The results showed that these electrodes displayed high salt adsorption capacity and corresponding high salt adsorption rates surpassing other carbon materials.
Researchers at HZDR have created a novel method for growing magnetic thin-film materials that host skyrmions, tiny magnetic vortices promising for high data storage and processing capacities. The new process involves rapid heating with brief flashes of light to prevent undesired crystal phases, resulting in stable skyrmion formation.
Researchers from Immanuel Kant Baltic Federal University develop an optimized arc melting technique to produce highly pure MAX-phases with controlled stoichiometry and pressure. This leads to increased manganese incorporation and reduced side phases, crucial for fundamental understanding of MAX-phase magnetism.
Researchers from GEOMAR have found that manganese, not iron, is the limiting factor for phytoplankton growth in some areas of the Southern Ocean. This finding has significant implications for understanding past changes and future climate change.
Researchers developed a manganese-based contrast agent that is diagnostically equivalent to gadolinium-based contrast agents but without the toxicity, offering a safer alternative for patients with chronic kidney disease. The new agent, Mn-PyC3A, is rapidly and completely eliminated from the body and does not accumulate in tissues.
Researchers have confirmed the existence of a supernova that exploded near Earth 2.5 million years ago, producing iron-60 and manganese-53. The discovery was made using ultra-trace analysis, which detected the presence of these elements in ancient sediment layers.
Researchers at Texas A&M University have designed a new plant-based energy storage device that can store up to 900 times greater charge than state-of-the-art supercapacitors. The devices are also environmentally friendly, lightweight, and cost-effective, making them suitable for charging electric cars within minutes.
A new manganese-based single-atom catalyst has been developed, exhibiting high Faradaic efficiency and current density in electrochemical CO2 reduction. The catalyst outperforms all reported Mn SACs, paving the way for low-cost and efficient conversion of CO2 into useful chemicals.
Researchers discovered that rhodochrosite can be photooxidized by UV light under anoxic conditions, suggesting a possible alternative to biological catalysts for oxygenic photosynthesis. This finding provides insight into the evolution of oxygenic photosynthetic organisms on Earth.
Researchers investigate connection between manganese exposure and community health, particularly in infants and young children in California's Central Valley and coastal areas. The study aims to quantify the impact of manganese-contaminated water on public health, as current regulations are unenforceable.
A supersensitive dopamine detector developed using 2D materials can help diagnose disorders such as Parkinson's disease and schizophrenia. The detector is low-cost, flexible, and can detect dopamine in real-time, making it a promising tool for non-invasive monitoring.
Researchers at Caltech have found bacteria that use manganese as their primary source of energy, converting carbon dioxide into biomass through chemosynthesis. This discovery sheds light on the geochemistry of groundwater and has implications for understanding manganese nodules on the seafloor.
A new study found that women with higher manganese levels in early pregnancy had a lower risk of developing preeclampsia later on. The researchers analyzed data from over 1,300 women and found an association between higher manganese levels and reduced preeclampsia risk.
Researchers use X-ray laser to observe water molecules flowing through the oxygen-evolving complex of Photosystem II, shedding light on a key step in oxygen production. The study provides new insights into how protein and water molecules work together to produce breathable oxygen.
Researchers at Penn State have developed a new supercapacitor based on manganese oxide that combines the benefits of batteries and other supercapacitors. The device has high energy density and power, making it suitable for electric vehicles and wearable electronics.
Scientists at HZB have measured the energy gap in a magnetically doped topological insulator, finding it to be five times larger than theoretically predicted. This discovery could lead to the creation of near-room-temperature Quantum Hall Effect devices and quantum processing units for quantum computers.
A recent study by Dr. Karin Limburg and Michele Casini reveals that hypoxia caused by climate change is responsible for the declining condition of Baltic cod. The researchers analyzed otoliths, or earstones, found in the fish's hearing and balance system, which showed a clear link between hypoxia and the decline of the species.
Researchers have created a rewriteable paper coating that can encrypt secret information using relatively low-tech invisible ink--water. The method allows reversible secure printing for at least 30 cycles, significantly reducing the cost and being environmentally friendly.
Researchers at MGH develop a new, possibly safer contrast agent for MRI exams using a manganese-based compound that provides comparable tumor contrast enhancement to state-of-the-art gadolinium-based agents. The new agent is designed to be more quickly and thoroughly cleared from the body, reducing concerns about long-term safety.
Researchers found links between early-life manganese exposure and altered functional connectivity of brain areas supporting cognitive and motor control. This association was observed even before birth and during early childhood.
Researchers found that manganese can increase the rate of conversion from lead carbonate to lead dioxide by two orders of magnitude. This process can occur when chlorine disinfectants are used in water treatment, and varying concentrations of manganese among public water systems may explain differences in lead dioxide presence.
Sodium-ion batteries have shorter lifetimes than lithium-based batteries due to the unintended presence of hydrogen. Hydrogen leads to degradation of the battery electrode. The study reveals that measures can be taken during fabrication and encapsulation to suppress incorporation of hydrogen, leading to better performance.
A new study from Iowa State University researchers explores the biological processes by which exposure to metals can contribute to Parkinson's-like symptoms. The study found that manganese combines with a protein called alpha-synuclein, leading to misfolded proteins and a neurodegenerative response.
MIT researchers have developed a new MRI-based detection method for intracellular calcium signaling, enabling precise measurements of neural activity. This breakthrough allows scientists to link neural activity with specific behaviors and could lead to further research on brain function and diagnostics.
A team of researchers at UConn and ExxonMobil have discovered a new, more energy-efficient method for producing acrylics. The technique uses a porous catalyst made of manganese and oxygen to facilitate chemical reactions, resulting in reduced energy consumption and fewer unwanted byproducts.
Researchers discovered manganese's role in disrupting protein transport, leading to parkinsonian symptoms. Manganese accumulates in cellular vesicles, disturbing nerve cell function and affecting Parkinson's disease-like symptoms.
Researchers have discovered a new catalyst made from manganese that is comparable in ability to split water as platinum and other metal-based alternatives. The stability of the catalyst makes it potentially suitable for hydrogen fuel cells, which could lead to wide-scale adoption of the technology.
A new study links scoliosis to the body's inability to utilize the essential dietary mineral manganese. Children with severe scoliosis are twice as likely to carry a gene variant that makes it hard for their cells to take in and use manganese, which is required for growing bones and cartilage.
Dr. R. David Britt received the prestigious Zavoisky Award for his groundbreaking work on enzymes and electron paramagnetic resonance. He will receive a cash prize of €5,000 and deliver a lecture on solar energy.
Enterococcus faecalis relies on manganese acquisition systems for virulence, which are essential for growth in manganese-restricted environments. Inactivating these transporters led to a loss of virulence in animal models, making them promising targets for new antimicrobial therapies.
Researchers are developing portable sensors that can detect toxic metals like manganese in a single drop of blood. The sensors will enable faster and cheaper research as well as rapid detection of neurotoxins affecting cognitive development and neuromotor function.
A Kent State geologist has received a prestigious NSF CAREER Award to investigate the role of manganese in controlling carbon storage in soils. Her research aims to understand how this element influences climate change, with potential applications for developing more effective carbon sequestration strategies.
Researchers used a novel experimental setup with quantum chemical calculations to understand organometallic catalysts. They were able to empirically test and validate calculations for oxidation and reduction processes on the entire molecule, providing new insights into redox processes in complex systems.
Researchers from Siberian Federal University and Kirensky Institute of Physics have developed an approach for the controlled synthesis of semiconducting higher manganese silicide thin films. The team successfully targeted the formation of two phases, Mn4Si7 and Mn17Si30, with high charge carrier mobility.
Researchers at Berkeley Lab and Natron Energy have confirmed the existence of a novel chemical state of manganese in an unconventional electrode. This discovery enables a high-performance, low-cost sodium-ion battery that outperforms conventional lead-acid batteries in terms of cycle life and cost.
Physicists at Mainz University have successfully manipulated the Néel vector orientation in metallic thin films of Mn2Au, a compound featuring much faster information-writing and stability. The discovery could lead to ultrafast and stable magnetic memory.
Researchers have successfully used solar sintering to process manganese ore fines, eliminating fossil fuel combustion and reducing CO2 emissions by up to 100%. This innovative method could lead to a commercial solar sintering industry, replacing carbon-intensive steel production methods in South Africa.
Manganese dioxide-based micromotors exhibit remarkable propulsion efficiency and can remove organic dyes from water with high efficiency. The study demonstrates the potential of manganese dioxide in catalytic micromotors, including protection against sulphur toxicity and efficient drug delivery.
A study by the University of Cincinnati found that higher manganese levels in children are associated with lower IQ scores and cognitive decline. The research analyzed blood and hair samples from 106 children aged 7-9 and found significant declines in full-scale IQ, processing speed, and working memory.
A high-manganese diet makes mice susceptible to staph heart infection, inactivating their innate immune system's reactive oxygen burst. This discovery adds to evidence that diet influences infection risk and suggests people with excess tissue manganese may be at higher risk for staph infection of the heart.
A recent study by University of California, Riverside researchers found high levels of manganese in groundwater wells in the US and three Asian countries, exceeding World Health Organization guidelines. The study suggests public health officials should monitor manganese levels to ensure safe drinking water, particularly for children.
A new generation of manganese dioxide-zinc batteries offers unprecedented cycle life and energy density, making it suitable for large grid storage applications. The breakthrough allows the battery to maintain its high energy density over 900 cycles, overcoming a major limitation of zinc-anode batteries.
Researchers have found high levels of manganese and arsenic in Indian groundwater, highlighting the need for further study into their relationship and potential health risks. The study suggests that processes between manganese and dissolved organic matter may contribute to the distribution of arsenic in groundwater.
A study by Johns Hopkins Bloomberg School of Public Health found high levels of toxic metals in five leading e-cigarette brands, including cadmium, chromium, lead, manganese, and nickel. The liquid in these e-cigarettes contains the aerosol that is inhaled by users, posing a health risk when inhaled.
Welders exposed to low levels of manganese exhibit neurological symptoms similar to Parkinson's disease, including slow movement and difficulty speaking. Current OSHA safety standards may not protect workers from the dangers of welding fumes.
A study published in Neurology found that welders who work with manganese fumes are more likely to develop Parkinson's-like symptoms. The researchers analyzed data from 886 workers and found that cumulative exposure to manganese was associated with a yearly increase in movement problems.
Researchers discovered a new species of deep-sea octopus that guards its eggs on sponges attached to manganese nodules. The species' dependence on the nodules suggests industrial resource extraction must be preceded by ecological investigations.
A new species of octopod, the 'Casper', has been found at record-breaking ocean depths, and its eggs are laid on sponges attached to seafloor nodules rich in valuable metals. The removal of these nodules may put the lifecycle of these octopods at risk due to their association with manganese crusts.
Scientists have discovered that certain large ions can hold tunnels open in electrode materials, allowing charge-carrying ions to move in and out easily and quickly. This breakthrough could lead to improved energy density and power density of lithium ion batteries for larger devices such as electric cars.
A new study by University of California - Santa Cruz researchers found that early exposure to high levels of manganese causes lasting attention deficits and impairments in rats. The findings support concerns about the adverse effects of excess manganese on children's development.
The discovery of high levels of manganese oxides in Martian rocks suggests that the Red Planet may have had a more Earth-like atmosphere in the past. This finding is significant because it could indicate that higher levels of atmospheric oxygen once existed on Mars.