Articles tagged with Iron
The study demonstrates how cyanide and carbon monoxide are safely bound to an iron atom to construct an enzyme that can generate hydrogen gas. This discovery sheds light on the unusual chemistry involved in binding small molecules to metal atoms, a crucial step towards producing hydrogen using abundant metals.
Researchers found no evidence of an association between iron levels and the risk of atherosclerosis, contradicting a long-held hypothesis. The study's findings carry important implications for patients with chronic kidney disease or anemia related to inflammatory disorders.
Scientists have discovered a previously unknown form of uranium that can become mobile under certain conditions, remobilizing from natural wetlands into surrounding water. Researchers found that a specific combination of organic matter, iron, and sulfide presence enables the mobility of uranium.
The American College of Physicians recommends restricting red blood cell transfusions to severe anemia cases in patients with heart disease. ACP also advises against using erythropoiesis-stimulating agents in mild to moderate anemia with heart conditions due to increased risks of thromboembolic events and stroke rates.
A new MRI technique found significantly lower brain iron levels in ADHD patients who had never been on medication, compared to those who had been medicated. This discovery may help guide optimal treatment for ADHD and identify potential risks of addiction.
Researchers at the University of Toronto have developed a series of techniques to create efficient iron-based catalysts for producing alcohols and amines used in the drug and perfume industry. The new process replaces rare elements with abundant iron, making it safer, more economical, and environmentally friendly.
A new study reveals that iron may play a role in preserving ancient tissues within dinosaur fossils, but also concealing them. Hemoglobin is identified as a key player in this process, which could lead to the recovery of more preserved tissues from well-preserved fossils.
Researchers have discovered an additive that inhibits oxidation in wine, reducing discoloration and loss of aroma. Chelation compounds like phytic acid can bind with metals to neutralize oxidation, making it a promising solution for winemakers.
Researchers debunk the notion that hepcidin spikes cause exercise-induced anemia, highlighting the need to understand what causes anemia to prevent it. The study provides insight into high hepcidin levels in non-exercisers with long-term anemia.
Triferic effectively delivers iron to the body's bone marrow, maintaining hemoglobin levels without rapid flux, a safer alternative to current intravenous injection methods. The study demonstrated its effectiveness in preventing iron overload and iron deficiency in 300 patients with chronic kidney disease undergoing dialysis.
Researchers used electron microscopy techniques to study metallic nanoparticles' reaction with environment, finding oxidation occurs much faster due to strain introduced by size. The discovery improves understanding of nanoparticles' applications in clean fuel technologies, data storage, and catalysis.
Researchers found iron concentration is uniform across Perseus Galaxy Cluster, indicating widespread dispersal of heavy elements in the early universe. The team attributes this to supernova explosions and active black holes, suggesting a period of intense cosmic activity.
Scientists from the University of Glasgow have developed a range of new pizza recipes that meet public health goals without compromising taste. The pizzas contained at least 30% of all required nutrients, including carbohydrates, vitamins, and minerals, making them suitable as healthy meals.
Researchers analyzed X-ray telescope observations from the Suzaku satellite to study iron distribution in the Perseus cluster. They found that iron is spread evenly between galaxies, suggesting it was created at least 10-12 billion years ago through intense star formation and supernovae explosions.
Researchers found increased iron deposits in deep gray matter of patients with clinically isolated syndrome (CIS), a precursor to Multiple Sclerosis (MS). The study also revealed subtle brain damage and lack of correlation between iron deposits and jugular vein diameter, casting doubt on the Zamboni hypothesis.
Researchers at the UPV/EHU and Tecnalia have developed an innovative method using iron nanoparticles to degrade lindane, a toxic insecticide banned by farmers. The study confirms the high reactive capacity of iron nanoparticles to break down lindane, revealing reaction tendencies and speeds over time.
A new process developed at the University of Illinois Chicago suggests that base metals can be used as catalysts in the manufacture of petroleum-based products. The process, which uses copper and iron, has the potential to reduce costs and environmental impact by replacing rare and expensive metal catalysts.
An analysis of 32 studies found that anemic children who received iron supplements showed substantial improvement in IQ scores and other cognitive tests. Daily iron supplementation also decreased the prevalence of anemia by about 50% and improved growth, with no adverse effects reported.
Scientists propose iron in Earth's core weakens dramatically just before melting, affecting seismic wave speeds. This discovery provides a compelling explanation for observed wave velocities at the Earth's inner core.
A new Stanford study proposes that an iron melt network played a key role in forming the early Earth's internal structure, lending credence to a theory first proposed nearly half a century ago. The team recreated ancient Earth conditions and found evidence that percolation, previously thought impossible, could have helped funnel molten...
A study found that iron supplementation among children in a malaria-endemic area did not increase the incidence of malaria. However, hospital admission rates were higher in the iron group compared to the no-iron group.
Researchers found that AD mouse models with neurodegeneration have 25% more copper in their amyloid plaques than those without, suggesting altered copper regulation may contribute to neurotoxicity. Iron levels were also increased, particularly in the ferric state, and may serve as a biomarker for early-stage AD.
A new study has found that two forms of iron are needed to control cystic fibrosis lung infections. Targeting both ferrous iron (Fe(II)) and ferric iron (Fe(III)) was more effective in preventing biofilm formation than targeting only one form.
Scientists have discovered a vast plume of iron and micronutrients in the South Atlantic Ocean, challenging previous estimates of iron sources in the world's seas. The finding has profound implications for understanding ocean life and Earth's climate as it suggests that slow-spreading ridges may be a significant source of iron.
Researchers have discovered that ancient Egyptian iron beads were hammered from pieces of meteorites, not iron ore. The findings indicate that metalworkers mastered the smithing of meteoritic iron over 5,000 years ago, enabling the development of iron smelting and replacing copper and bronze as primary metals.
Researchers at Syracuse University have developed a novel method for synthesizing alloy nanomaterials with stainless steel-like interfaces. This breakthrough may enable the creation of diverse forms of alloy nanomaterials for various applications, including gas storage and heterogeneous catalysis.
Nancy Andrews, MD, PhD, was recognized for her work on iron homeostasis and erythropoiesis, while Elaine Jaffe, MD, received the award for her clinical/traslational research on lymphoma. Both scientists have made significant contributions to their respective fields.
Researchers at SISSA have developed a circuit simulating the ferromagnetic Kondo effect, a phenomenon linked to spin of metal electrons. The team predicts this effect can be observed with sufficient low temperature, which would change material properties like resistivity.
A new study found that dissolved iron supply to oceans around continental shelves is more variable by region than previously believed, affecting future climate prediction. Iron promotes the growth of microscopic marine plants, which remove carbon dioxide from the atmosphere.
Researchers found that a transient 'perfect storm' of nutrients and light led to the brief bloom of phytoplankton 14,000 years ago. The study resolves conflicting ideas about the relationship between iron and biological productivity in the North Pacific, with implications for geo-engineering efforts to curb climate change.
A systematic review found that delaying umbilical cord clamping after birth improves newborn iron levels and overall health. Babies with delayed cord clamping had higher haemoglobin levels and were less likely to be iron-deficient.
Researchers suggest that chondrules may have formed from high-pressure collisions between planetesimals, which would explain their composition and origin. This theory resolves a long-standing puzzle in cosmochemistry and provides a potential solution to the mystery of how these glassy spherules were embedded within meteorites.
A Kansas State University-led study reveals that the TonB protein plays a central role in the uptake of iron by Gram-negative bacteria, which cause diseases like typhoid fever and meningitis. The research found that TonB acts as an electric motor that rotates in response to cellular energy flow, enabling iron acquisition into the cell.
A 25-year follow-up study reveals chronic iron deficiency in infancy is associated with poorer cognitive, motor, and social-emotional outcomes, including reduced educational attainment and lower emotional health.
Researchers from McGill University have developed a method to use iron nanoparticles as catalysts in water-ethanol mixtures, overcoming the limitation of rusting in the presence of oxygen or water. This innovation enables the possibility of replacing platinum-series metals for hydrogenation under industrial conditions.
A study published in the Journal of the American Society of Nephrology found that administering large doses of intravenous iron over a short period increases dialysis patients' risk of developing serious infections. In contrast, smaller doses given less frequently do not increase infection risk.
A study of over 90 studies found that daily iron intake during pregnancy increases average haemoglobin levels and reduces the risk of anaemia. Birth weight is also improved, but no reduction in preterm birth risk was observed.
A study published in PLOS Medicine found that twice weekly iron supplementation is equally effective to daily supplementation in improving birth weight and infant growth outcomes. In contrast, it showed improved cognitive development in infants aged six months and higher adherence rates among pregnant women.
A new study on ocean microbes calls into question the potential use of algal blooms to trap carbon dioxide. Diatoms are found to be using more iron than needed for photosynthesis, storing it in their shells and reducing the amount available for other phytoplankton.
A new study at Georgia Tech suggests that diatoms stuff more iron into their silica shells than needed, limiting its availability and reducing productivity. This can negatively affect the ecosystem, including plankton production and competition for iron.
A new study found that increased serum iron levels are associated with a 3% relative reduction in the risk of developing Parkinson's disease. The research used a Mendelian randomization approach to investigate the link between iron levels and Parkinson's disease risk.
Scientists discover chemical reaction between iron-containing minerals and water can produce enough hydrogen to sustain microbial communities, hinting at possibility of hydrogen-dependent life on Mars. The study also suggests that such reactions could take place in the ocean's crust at lower temperatures than previously thought.
Researchers have found conclusive proof that Ancient Egyptians used meteorites to create symbolic accessories. The evidence comes from a prehistoric iron bead discovered in Egypt, which was dated to around 3350-3600BC. Analysis of the bead's composition confirms its meteorite origins.
Scientists have measured the strength of iron under extreme pressures, simulating conditions at the center of the Earth. The study found that iron in the inner core is weaker than previously thought, with implications for understanding Earth's evolution and geomagnetic field.
Researchers found Fe-60 iron atoms in sediments from ocean cores dating back to 2.2 million years ago, indicating a possible supernova impact on Earth. The discovery suggests that magnetotactic bacteria may have created magnetite crystals containing the radioactive isotope.
A new process developed by MIT researchers uses molten oxide electrolysis to produce steel without emitting greenhouse gases, resulting in higher purity metal and potential cost savings. The method could be adapted for production of other metals and alloys with similar advantages.
Researchers found a surprising relationship between the oxidation state of iron in volcanic rocks and variations in the deep Earth's chemistry. The study revealed that lavas with lower iron concentrations are enriched in elements like barium and lanthanum, suggesting a role for carbon in the deep Earth.
The researchers used a new technique that can probe a sample with an intense X-ray beam and deduce its state within seconds. They determined the melting point of iron up to 4800 degrees Celsius and 2.2 million atmospheres pressure, leading to the estimated temperature at the center of the Earth's core.
Researchers at Argonne National Laboratory and Technical University of Madrid create model for iron transportation in legumes to enhance nitrogen fixation. This breakthrough aims to lessen reliance on nitrogen fertilizers and promote sustainable agriculture practices.
Rice physicists Qimiao Si and Rong Yu discovered a new electronic state in which some electrons become frozen, while others remain mobile, leading to 'bad traffic' on the path to superconductivity. This phase, known as orbital-selective Mott phase, provides clues about the fundamental origins of superconductivity.
Researchers characterized SUDEP in a mouse model of DS, finding that treatment with drugs reducing parasympathetic activity reduced incidence. Lymphatic vasculature also plays crucial role in cholesterol removal from arteries, with impaired lymphatic growth leading to increased cholesterol retention. A new therapeutic target is identif...
Two studies by Weill Cornell Medicine researchers propose new treatments for beta-thalassemia, HFE-related hemochromatosis, and polycythemia vera. The discovery reveals a crucial role of macrophages in regulating iron production and red blood cell production, offering new avenues for therapy.
Lyme disease bacteria rely on manganese to make essential enzymes, evading immune system defenses that starve pathogens of iron. This discovery opens the door to new therapies targeting manganese, potentially improving disease detection and treatment.
Researchers at Case Western Reserve University found that normal prion protein PrPc plays a crucial role in regulating iron metabolism, which may contribute to neuronal death in CJD. Iron imbalance caused by prion aggregation leads to neurotoxicity and brain cell death.
A new study by Woods Hole Oceanographic Institution identifies glaciers as a significant source of iron to the North Atlantic Ocean. The research found high concentrations of dissolved iron in meltwater from glaciers and ice sheets, which may fuel plankton growth during spring and summer.
Researchers at UMass Amherst and Harvard found that women who consumed more non-heme iron had a 30-40% lower risk of developing pre-menstrual syndrome (PMS). High intake of zinc was also associated with lower risk. In contrast, high potassium intake was linked to higher PMS risk.
Researchers develop fast and efficient iron-based molecule that splits hydrogen gas into electricity, rivaling commercial catalysts. The breakthrough could make fuel cells more economical, addressing the high cost of platinum used in current systems.
Researchers at Ohio State University have developed a clean coal technology called Coal-Direct Chemical Looping (CDCL) that chemically harnesses coal's energy while capturing nearly all the carbon dioxide produced. The technology, which uses tiny metal beads to carry oxygen, has been successfully tested for 203 continuous hours.
Researchers identified HRG1 protein to safely transport heme-iron, a crucial component of red blood cells. This finding offers promise for new treatments for iron deficiency and parasitic worm infections.
Researchers have created a way to cultivate iron-oxidizing bacteria using electricity, enabling the study of these organisms and potentially leading to biofuel production. The electrochemical cultivation method supplies the bacteria with electrons, allowing them to respire and replicate without iron.