Articles tagged with Iron
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Researchers create magnetically switchable materials by introducing chiral hydrogen bonds, allowing precise control over electron transfer. The study highlights the importance of molecular chirality in material performance.
Researchers at Worcester Polytechnic Institute have discovered a new method to create high-performance alkaline batteries using iron and silicate. The process suppresses hydrogen gas generation, improving the energy efficiency of battery systems.
US women between 20-44 years old have experienced declining vitamin A, C, and iron intake over the last two decades. This trend may have significant implications for maternal and fetal health. The study aims to identify these nutrient gaps and inform recommendations to improve intake.
In this study, researchers from Tokyo Institute of Technology found that hydrogen sulfide-dependent transcription factor YgaV regulates iron uptake dynamics in Escherichia coli. The team observed elevated intracellular H2S levels resulting in increased antibiotic resistance and upregulated genes involved in sulfur metabolism.
A new study suggests the hormone hepcidin may trigger psoriasis by causing iron overload in the skin. This excess iron amplifies the damaging effects of UV sunlight, leading to hyperproliferative chronic diseases like psoriasis. A potential treatment targeting hepcidin could improve treatment options for millions.
A recent study published in The American Journal of Clinical Nutrition found that over 80% of women are iron deficient by the third trimester of pregnancy. Despite being considered a high-resource setting, the study revealed alarming rates of iron deficiency among healthy pregnant women. This finding emphasizes the importance of routin...
Researchers found that Saharan dust blown thousands of kilometers away increases oceanic life by making iron more accessible through atmospheric reactions. The study measured bioreactive and total iron in Atlantic Ocean drill cores, revealing a relationship between distance traveled and bioreactivity.
The Indian Institute of Science team proposes an on-site alternative using iron nanoparticles that can remediate heavy metals. The S-CMC-nZVI material showed nearly 99% efficiency at Cr6+ removal under different conditions.
Researchers have created a single-step method for producing Invar alloys with zero CO2 emissions and improved mechanical strength. The new process integrates metal extraction, alloying, and thermomechanical processing into one reactor step.
A recent clinical trial found that an IV iron treatment called ferric carboxymaltose works faster and better than oral iron tablets in treating anaemia during pregnancy. The study showed improved haemoglobin levels and iron correction with the IV treatment, with comparable side effects.
Researchers have developed a lithium-sulfur battery with improved iron sulfide cathode, retaining capacity over 300 charge-discharge cycles. The battery also withstands physical stress, including folding or cutting, making it safer and more efficient.
A new study found significant intake inadequacies for nearly all evaluated micronutrients, with iodine and vitamin E deficiencies being the most prevalent. The researchers estimated inadequate intakes were higher for women than men in some countries, highlighting a need for targeted dietary interventions.
The USPSTF finds that iron deficiency is the leading cause of anemia during pregnancy, affecting approximately 18% of pregnant individuals. Routine screening and supplementation are not recommended to prevent adverse maternal and infant health outcomes.
A new study from Oregon Health & Science University found that routine prenatal iron supplementation has no significant impact on maternal or infant health outcomes. Clinicians can now inform decisions around iron supplement use with individualized prenatal care, considering a patient's unique symptoms and history.
A study of 13,084 adults with iron deficiency found that 42% had normal iron levels within three years, while 58% continued to have low ferritin levels. Factors associated with faster resolution included older age, male sex, and Medicare insurance. Persistent delays in treatment highlight the need for improved recognition and efficient...
Researchers discovered that the iron nitrogenase can convert CO2 into methane and formic acid, making it a promising starting point for developing novel CO2 reductases. The enzyme's low selectivity for CO2 also suggests its potential for widespread use in nature.
A new study found a significant association between higher heme iron intake and type 2 diabetes risk. Participants with the highest heme iron intake had a 26% higher risk of developing T2D than those in the lowest intake group. The researchers also identified key metabolic biomarkers associated with this increased risk.
Researchers found a 37% reduction in mortality and a 24% reduction in medical complications among study participants who received iron infusions. The findings suggest that preoperative iron infusions may be a more effective strategy for reducing morbidity and mortality in surgical patients.
Researchers discovered a new mechanism by which iron oxide minerals recycle phosphorus from DNA and RNA molecules, transforming them into bioavailable inorganic forms. This finding uncovers a missing piece of Earth's puzzling phosphorus cycle, highlighting the importance of understanding natural phosphorus recycling mechanisms.
A recent study published in BMJ Military Health found that female conscripts' iron deficiency more than doubled from 25% to 55% after five months of basic military training. The study also showed a significant decrease in ferritin levels, which can lead to anemia and fatigue.
Weaker ocean circulation may lead to increased carbon dioxide buildup in the atmosphere due to a previously uncharacterized feedback loop involving iron, upwelling nutrients, and ligands. The study challenges current thinking on the ocean's role in storing carbon.
Researchers from Nanjing Agricultural University have discovered the intricate dance between calcium signaling and iron regulation in apple plants. They found that MdCML15 and MdBT2 interact to control iron homeostasis, leading to improved crop growth and yield, particularly in iron-deficient soils.
Researchers studied Chang'e-5 samples to understand how solar wind irradiation and micrometeorite impacts form metallic iron nanoparticles, revealing distinct effects on size and optical properties. The study provides insights into lunar surface color variations and remote sensing measurements.
Researchers have designed a new way to recycle steel using an electrochemical pathway that removes contaminants like copper, reducing carbon emissions. The process generates liquid iron and sulfur as by-products and has potential for higher-grade product creation.
Using three definitions of iron deficiency, researchers found significant variations in prevalence rates among women in the US and Canada. Higher serum ferritin thresholds led to a greater diagnosis and treatment of iron deficiency, resulting in reduced morbidity.
A team from Osaka University used electron microscopy and computer simulations to study the kinetics of microstructure formation in Fe3Al, leading to a deeper understanding of its superelastic properties. The findings could provide insights for heat treatments and applications in construction and healthcare industries.
Researchers at Oregon State University have developed a new cathode material for lithium-ion batteries using iron, which could lead to lower costs and increased sustainability. The iron-based cathode offers higher energy density than current materials and uses iron as the cheapest metal commodity.
A systematic investigation by Osaka Metropolitan University calculated 120 combinations of alloy elements with carbon and nitrogen to form bonds in steel. The results showed that specific arrangements of elements harden the iron, improving durability and material strength.
A team of POSTECH and ImmunoBiome has discovered a dietary-derived bacterial strain, IMB001, that induces nutritional immunity and boosts anti-tumor responses. The strain works by skewing tumor-infiltrating macrophages toward an inflammatory phenotype, leading to increased cell death of rapidly multiplying tumor cells.
Researchers found that iron is a regulator of energy usage by immune cells in the lungs, which can help treat asthma and other allergic diseases. Blocking or limiting iron uptake may reduce asthma severity.
Researchers at Hokkaido University have developed a cost-effective and high-capacity cathode material for lithium-ion batteries by doping abundantly available elements, such as aluminum and silicon. The addition of these elements forms strong covalent bonds, enhancing the material's cyclability and capacity retention.
Researchers analyzed asteroid Ryugu samples to study magnetic and physical bombardment environment in interplanetary space. The investigation revealed changes likely caused by micrometeoroid bombardment, providing insights into the solar system's early stages.
A revised classification of primary iron overload syndromes has been proposed based on the hepcidin25/ferroportin system, categorizing conditions into prehepatic, hepatic, and posthepatic forms. The new classification aims to improve diagnosis and treatment of these disorders.
Researchers uncover evolutionary history of secreted iron uptake molecules in yeasts, revealing complex dynamics between cooperation and competition for this essential nutrient. Yeast species have developed alternative mechanisms to utilize siderophores without producing them, offering insights into the evolution of microbial strategies.
Research highlights the association between iron deficiency and obesity in children and adolescents, with potential links to inflammation and brain function. The study's findings underscore the importance of addressing micronutrient deficiencies in childhood growth and development.
A mathematical model estimates iron fertilization's potential costs, ranging from $7 to $1,500 per ton of carbon removed. The study also explores the impact of verification methods and aerial delivery on costs.
A recent study by the University of Cambridge found that farmed salmon production leads to a loss of essential nutrients. Consuming one-third of current food-grade wild feed fish directly could maximize nutrients from the sea. This approach could help address global nutrient deficiencies and improve both diets and ocean sustainability.
Researchers linked red/processed meat consumption to increased colorectal cancer risk, highlighting two genetic markers (HAS2 and SMAD7) that alter cancer risk levels based on meat intake. The study analyzed data from nearly 70,000 people and found a 30-40% increased risk for those with high red or processed meat intake.
A study published in Cell Stem Cell found that restricting iron levels in blood stem cells can reverse their decline and improve regenerative capacity. The researchers discovered that excess intracellular iron activates inflammation within HSCs, while restricted iron levels enable them to multiply and respond effectively.
A preliminary study found that people with headaches after concussions tend to have higher levels of iron in areas of the brain, suggesting damage to brain cells. The more concussions and frequent headaches individuals experience, the greater the likelihood of increased iron accumulation in certain brain regions.
Researchers have detected tellurium in a kilonova afterglow, indicating that neutron star mergers can create rare heavy elements. This discovery sheds light on the formation of elements heavier than iron and provides new insights into the universe's chemical composition.
Plant cells respond to blue light by forming biomolecular condensates in the cell nucleus, where transcription factors like FIT accumulate. These condensates may play a regulatory role in iron uptake, allowing for spatially and temporally flexible platforms for signalling.
A recent study reveals a complex interaction of factors contributing to anemia, including dietary diversity, food insecurity, access to clean water, and infection/inflammation status. The findings suggest that interventions addressing multiple nutritional predictors can reduce anemia prevalence in high-risk populations.
The team developed a 'catch-and-release' mechanism to oxidize hydrophobic compounds, selectively and efficiently producing hydrophilic products under mild conditions. This breakthrough enables the selective two-electron oxidation of anthracene and aromatic compounds from mixtures, solving a long-standing challenge.
A common mineral in red soils, goethite locks away trace metals over time, rendering them unavailable for plants and animals. The study found that up to 70% of nickel was non-recoverable and only 8% of cadmium was irreversibly bound.
Scientists at Max-Planck-Institut für Eisenforschung have developed a method to produce green steel from toxic red mud using an electric arc furnace and hydrogen plasma, potentially saving 1.5 billion tonnes of CO2. The process is also economically viable, requiring only 30-40% iron oxide in the red mud.
A new study at BESSY II has provided deeper insights into the ordering processes and diffusion phenomena in High-Entropy Alloys. The team analysed samples of a Cantor alloy, revealing local atomic structures using element-specific EXAFS and Reverse Monte Carlo analysis.
A new type of ferric reductase, HYP1, has been discovered in plants to maintain root growth under low phosphorus conditions. The protein coordinates three hemes and can transport electrons across the plasma membrane to reduce iron availability.
Researchers discovered that plants eliminate IMA1 to prevent harmful bacteria from thriving, but increasing IMA1 levels makes leaves more resistant to attack. This finding suggests a deep connection between iron availability and the plant immune system.
Researchers detected complex structure with three concentric rings in the innermost region of the disk, rich in dust and minerals. The discovery suggests two planets may be forming within the gaps, with masses similar to Jupiter.
A new process developed by KIT researchers reduces steel production's greenhouse gas emissions by several hundred million tons per year. The technology, known as dry reforming, replaces coke with hydrogen-rich synthesis gas to support iron oxide reduction in blast furnaces.
Researchers at IRB Barcelona discover iron accumulation as a driver of pathological senescence and fibrosis, highlighting its role in various fibrotic disorders. The study identifies potential methods for non-invasive assessment and treatment of fibrotic diseases via MRI and chemical compounds.
A study of Ryugu samples suggests that micrometeorites from icy celestial bodies in the outer Solar System transported nitrogen compounds to near-Earth regions. This discovery could provide clues about the origins of nitrogen on our planet, potentially serving as a building block for life.
Under acidic conditions, coumarins like sideretin help sustain Fe2+ reduction; at alkaline pH, fraxetin promotes Fe3+ mobilization. This fine regulation allows plants to adapt to different soil pH levels.
Researchers found that E. coli bacteria use iron levels to store information about behaviors like swarming and forming biofilms. These iron-based memories persist for at least four generations before disappearing, helping bacteria make informed decisions about their environment.
A new study highlights how perimenopausal women's periods may become unpredictable, heavy, and cause worse premenstrual symptoms. The research suggests that improved education and support are needed to manage these changes, including extra support in the workplace, emotional support from loved ones, and access to support groups.
Researchers identified genetic mutations in peas that enable high iron accumulation, opening doors for biofortification of staple crops like wheat and barley. This breakthrough has the potential to reduce iron deficiency anaemia globally.
Researchers at Vanderbilt University Medical Center discovered iron storage 'spheres' inside C. diff bacteria, which are crucial for infection and offer new targets for antibacterial drugs. The study, published in Nature, also reveals that bacteria may compartmentalize biochemical processes in a way similar to eukaryotic cells.
Researchers at Nagoya University identified the link between iron and blindness caused by ocular toxoplasmosis, a parasite affecting one-third of the world's population. Controlling iron levels has shown promise as a potential cure.
Researchers have created a reliable and efficient method to add fluorine to molecules, increasing pharmaceutical drug efficiency. The iron and sulfur-based reaction enables the release of fluorine from carboxylic acids and its incorporation into alkenes, common building blocks for drugs.