Articles tagged with Iron
Scientists have found evidence of hydrohematite, an iron oxide mineral containing water, in Martian rocks. This discovery suggests that Mars may have once had a watery environment and could hold a significant water reserve.
A new radiotracer, 18F-TRX, has been developed to measure iron concentration in tumors, predicting treatment response. The agent successfully distinguished between tumor types and identified those likely to respond to iron-targeted therapies.
Researchers from Stanford University and the University of Leuven have discovered a process to convert methane into methanol at room temperature using iron zeolites. The 'cage effect' in the zeolite structure plays a crucial role in reactivating deactivated sites, enabling efficient production of methanol.
Iron deficiency has been linked to higher risks of death and cardiovascular events in patients with chronic kidney disease (CKD), regardless of whether they have anemia. Clinical trials are needed to test the effects of iron treatment on these outcomes in CKD patients.
Scientists found that Mercury's large iron core is linked to the early sun's strong magnetic field, which pulled metal grains inward. This discovery sheds light on the formation of rocky planets' cores and their elemental distribution.
A new study from the University of Maryland disputes the prevailing hypothesis on Mercury's big core, instead attributing it to solar magnetism. The model shows that a planet's core density and proportion of iron are correlated with the strength of the sun's magnetic field during planetary formation.
Researchers discovered that lowering iron content in fat cells limits the absorption of lipids by intestinal cells, leading to reduced weight gain and associated health issues. This finding could lead to new therapeutic approaches to protect against obesity and related diseases.
An international research team has described a complete reaction path for electrocatalytic hydrogen generation using a newly produced compound inspired by nature. The findings provide new insights into the catalysis process and enable more efficient production of hydrogen as a sustainable energy source.
Measurements of iron spectrum in cosmic rays reveal that hydrogen, carbon, and oxygen nuclei travel through the galaxy similarly, but iron arrives differently. The findings provide a measurement of the galaxy structure and particle propagation through observations of element abundances and energy spectra.
A new study suggests that carbon, oxygen, and hydrogen cosmic rays travel through the galaxy toward Earth in a similar way, but iron arrives differently. Scientists believe this could indicate unique sources or propagation methods for different elements.
A study found tiny deposits of elemental copper and iron in the brains of two deceased patients with Alzheimer's disease. The presence of these metallic elements, previously observed only in microorganisms, suggests a new aspect of metal neurochemistry.
Researchers at UC Berkeley found that the inner core's asymmetric growth explains a long-standing mystery about iron crystals' orientation. The study suggests the core may be only 500 million years old, contradicting previous estimates and shedding light on Earth's magnetic field history.
A new water filter membrane made from natural raw materials has been developed to render viruses harmless. The membrane combines protein nanofibrils with iron oxyhydroxide nanoparticles to eliminate a wide range of water-borne viruses, including those causing gastrointestinal infections, with great efficiency.
Researchers found that salp fecal pellets release more bioavailable iron than krill pellets, allowing phytoplankton to take up five times more iron. This could lead to increased CO2 fixation and a shift in the Southern Ocean's food web as climate change affects krill dominance.
A computer modeling study found that declining fish biodiversity can lead to a decrease in essential nutrients like zinc and iron, exacerbating existing health issues like anemia. The study's findings have significant implications for food security and fisheries sustainability worldwide.
MIT researchers have discovered how metal clusters weaken the strong nitrogen-nitrogen bond, enabling microbes to convert nitrogen into usable forms. The study sheds light on the mechanism of nitrogenases, critical enzymes that fix nitrogen in the atmosphere.
Scientists have discovered a way to synthesize highly active single-atom catalysts using iron-breathing bacteria, promising a cheap and reliable method for hydrogen production. The innovation utilizes the bacterium's metal-reducing ability to conduct electrons and produce single atoms of catalytically active metals.
Researchers discovered a rare iron mineral in the teeth of a large mollusk called chiton. The finding helps understand how the tooth is designed to endure chewing on rocks, and inspired the development of a bio-inspired ink for 3D printing.
A Belgian team discovered iron and nickel in the atmospheres of comets across the Solar System, even at great distances from the Sun. This finding has implications for understanding the early Solar System's composition.
Researchers discovered that water can bond strongly with iron under extreme conditions, explaining the presence of significant amounts of hydrogen in the Earth's core. This finding suggests that much of the water that arrived on Earth during its formation might be stored in the core as hydrogen.
By vaporizing metals within a magnetic field, UC Riverside engineers direct the reassembly of metal atoms into consistent shapes and surfaces. The approach enables manipulation of particle assembly, producing string-like aggregates or globular clusters with tunable properties.
KAUST researchers have developed a robust catalyst that converts carbon dioxide into carbon monoxide gas with 100% selectivity, overcoming the limitations of precious metals. The innovative method uses MOFs to create mixed metal catalytic nanoparticles in a homogenous mixture.
Researchers found that adding aluminum to seawater increases net carbon fixation of marine diatoms by 10-30%, improving the ocean's ability to absorb CO2. This process can significantly increase the ocean's carbon sink capacity and sequester carbon for long periods, aiding climate change mitigation.
Scientists have created a cube-shaped iron-sulfur cluster that can support a multiple bond between iron and nitrogen, a structural motif involved in biological nitrogen fixation. The discovery shows the cluster's ability to accommodate an unusual bond without distorting its structure.
Researchers characterized how electronic states depend on local chemical composition in a compound containing iron, tellurium, and selenium. They discovered that low iron concentration leads to superconductivity and distinct magnetic correlations, while high tellurium concentration creates a topological surface state.
A new study found that taking a specific probiotic strain improves iron levels in healthy pregnant women, reducing the risk of iron deficiency and anemia. The probiotic product Lp299v was shown to reduce prevalence rates by 78% compared to placebo.
Researchers at Chinese Academy of Sciences developed a method to deposit high-dispersed Fe species into ZSM-5 micropores, resulting in high selectivity of cyclohexanone (92%-97%) and improved catalyst activity. The Fe content can be precisely controlled by varying ALD cycles.
Deeply subducted serpentinite rocks are found to carry surface water as far as 700 kilometers into the mantle, allowing scientists to trace material exchange. The presence of these rocks confirms a long-suspected pathway for deep-Earth recycling.
A genetic variation that regulates iron metabolism is associated with enhanced endurance performance in athletes. Those at risk for iron overload performed 8% better than those with a low-risk genotype, cycling 1.3 minutes faster on average.
Researchers found that adding an iron binder to Bedaquiline treatment boosts its ability to combat TB bacteria. The study suggests a promising approach to improving patient outcomes and developing new treatments.
Iron, a micronutrient crucial for phytoplankton, is being released from deep ocean sediments, providing a new source of nutrition for drifting marine organisms. This finding challenges previous expectations and has significant implications for studying the ocean carbon cycle and managing the marine environment.
A recent study at the Paul Scherrer Institute has revealed that airborne particulate matter can generate additional oxygen radicals, which can cause oxidative stress and damage lung tissue. The formation of these radicals is triggered by the interaction of iron and organic compounds under typical weather conditions.
Researchers developed a nanoparticle-based MRI contrast agent called SAIO for high-resolution 3D microvascular imaging, outperforming traditional gadolinium-based agents. The agent provides excellent resolution and stability, allowing for accurate diagnosis of cerebro-cardiovascular diseases.
Red supergiants are extremely bright but difficult to study due to their complex upper atmospheres. Astronomers have now developed a new technique to estimate their surface temperatures using iron absorption lines. By combining these temperatures with accurate distance measurements, researchers found consistent results with theory.
A recent study reveals how bacteria develop tolerance to beta-lactam antibiotics, leading to persistent infections. The researchers identified a system that mitigates iron toxicity in tolerant bacteria, opening the door for new therapies that exploit oxidative damage and iron influx.
An international team has developed a cassava variety with high-level resistance to two devastating diseases and higher levels of iron and zinc. The research builds on previous work demonstrating that increasing mineral content in cassava storage roots is possible using RNAi-mediated technology.
Researchers discovered that Arctic permafrost releases even larger quantities of CO2 than once believed, with microorganisms converting organic matter into greenhouse gases. The study found that the mineral iron no longer binds carbon as previously thought, resulting in a significant increase in CO2 emissions.
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.
A study in mice suggests that iron processing in the body may contribute to heart failure, and blocking this process could be a way of protecting the heart. Researchers found that inhibiting the release of stored iron can reduce cell death and stabilize oxygen levels.
A Princeton University team has discovered a new polybutadiene molecule that can be depolymerized under certain conditions, enabling the creation of chemically recyclable plastics. The material, named (1,n'-divinyl)oligocyclobutane, exhibits intriguing properties such as telechelic functionality, thermal stability, and high crystallinity.
Scientists at NAIST create arrays of isosceles silicon pyramids with flat facet planes, achieving ultrafine 3D shape control. Coating the pyramids with a thin layer of iron imparts unique magnetic properties.
A major new study will investigate the impact of intravenous iron treatment on maternal and newborn health in low-income countries, addressing anaemia prevention, growth development and breastfeeding rates. The two-year trial aims to compare single-dose intravenous iron treatments with oral iron supplements.
Research team finds that bacteria can use iron as a food source, releasing bound organic carbon into the water in thawing permafrost. This accelerates greenhouse gas emissions and global warming.
Iron deficiency affects two billion people, causing anaemia and serious health consequences. The new guidance outlines evidence-based approaches to diagnose and manage iron deficiency, leading to improved health outcomes.
Researchers have developed a new instrument that can analyze the chemical signatures of distant quasars, providing insight into the origins of metals like iron. By studying these ancient galactic cores, scientists hope to refine their understanding of the early universe and its role in forming the elements necessary for life.
Researchers at Northwestern University found that bacteria in low-iron environments reroute their metabolic pathways to favor producing iron-scavenging compounds. This study provides insights into the impact of iron on carbon cycling in bacterial cells, with implications for ecosystem health and environmental biotechnology.
A new study published in The Lancet Global Health found that iron infusion is highly effective in low-income settings compared to oral iron tablets. Women who received an iron infusion had normalized levels of haemoglobin after just six weeks, with continued benefits after one year.
Lauren Greenlee will investigate iron and oxygen atoms using X-ray spectroscopy to improve battery materials and water treatment. The project aims to design catalysts for polymer conversion and recycling, leading to enhanced industrial applications.
A major new study found that men with two copies of the faulty haemochromatosis genes are 10 times more likely to develop liver cancer by age 75 compared to the general population. Researchers call for routine early testing for the iron overload condition.
Researchers found that subglacial lakes and rivers release significant amounts of trace elements, exceeding oceanic and riverine concentrations. These findings suggest that ice sheets play a key role in regional nutrient mobilization, with implications for climate change and the global carbon cycle.
Researchers at Baylor College of Medicine have made significant discoveries about the 3D structure of mammalian ferroportin, revealing two iron-binding sites and a unique mode of action. This new understanding has potential implications for treating iron overload diseases, such as anemia and cancer.
A study of patients with acute heart failure found that intravenous iron replacement reduced hospital readmissions by 26% after just one or two injections. Iron deficiency is a common complication, and correcting it may be an effective strategy for preventing recurrent hospitalizations.
A new study by Cornell University confirms that teff grain consumption enhances the intestinal microbiome composition and function, potentially explaining lower iron and zinc deficiency rates in Ethiopia. The study used a unique in vivo approach to test the effects of teff seed extracts on living organisms.
Researchers at Arizona State University have developed a new method for creating ultrafast laser experiments on uncharged iron oxide clusters, which could lead to the creation of more efficient industrial catalysts. The study reveals how changes in atomic composition affect stability and reactivity of these fragments.
Researchers found that plant-secreted coumarins elicit nutritional assistance from bacterial commensals under iron limitation. Adding synthetic communities of root-associated bacteria improves plant performance on unavailable iron, but not with readily available iron.
The study provides new insights into the asteroid's composition, suggesting it may be a dense, metallic object made of iron and nickel. The findings also indicate that oxidation is occurring on the surface, which could be a result of solar wind interaction.
Researchers report that niobium readily dissolves in iron under high temperatures and pressures consistent with the Earth's core formation. This finding supports core formation models suggesting that the core did not form under highly reducing or oxidizing conditions, but rather was constrained by the sequestration of niobium.
A new study by a USC-led research team reveals that emissions from Chinese coal-fired power plants are fertilizing the North Pacific Ocean with iron and other metals, which could impact marine life. The researchers found peak iron concentrations in surface seawater corresponding to big wind events over east Asia.
A recent scientific study led by the Centre for Neurology Studies at HealthTech Connex and Simon Fraser University reports breakthroughs in brain health recovery for Captain Trevor Greene, a Canadian veteran who survived an axe attack in Afghanistan. The study used innovative neuro-technologies, including Portable Neuromodulation Stimu...
A study by Haizhou Liu and colleagues reveals that corroded cast iron pipes can react with residual disinfectants to form Cr(VI), a known carcinogen. The researchers suggest using less-reactive disinfectants and replacing cast iron pipes with chromium alloy could help mitigate Cr(VI) levels in drinking water.