Articles tagged with Iron
A team of researchers has found that the Earth's iron composition is not linked to its core formation, sparking alternative theories on why our planet has higher levels of heavy iron isotopes. The study suggests light iron isotopes may have been vaporized into space or incorporated into rock through slow mantle churning.
Researchers have developed new iron oxide nanoparticles with zwitterion coating that can produce similar MRI contrast to gadolinium-based agents without the risk of adverse effects. The particles are water-soluble, compact and biocompatible, making them a potential safer substitute for current contrast agents.
New research suggests that pure iron grains are extremely rare in the universe, contrary to previously thought, and may be forming invisible metal particles. A study published in Science Advances used a rocket-based experiment to simulate the formation of pure iron grains in space, revealing grain formation is highly unlikely.
Regular consumption of salicylic acid can promote and prolong bacterial colonization by depriving the body of iron, which is essential for bacterial growth. This study found that increased biofilm formation allows bacteria to survive longer under unfavorable conditions.
Researchers analyzed galvanized iron pipes from Flint, Michigan's 'ground zero' house and found that high lead concentrations correlated with cadmium, zinc, and tin levels. The study suggests that corrosion inhibitors were necessary to prevent lead contamination, highlighting the need for long-term pipe replacement.
Researchers found that fit female college students with normal iron levels achieved higher grade point averages than their unfit counterparts.
Researchers at the University of Huddersfield have developed an efficient iron-catalysed C-C bond-forming spirocyclization cascade, providing access to new 3D heterocyclic frameworks. This breakthrough could lead to huge economic gains in pharmaceuticals and agrichemicals.
Researchers at Duke University developed iron-fortified nutrition bars that effectively combat anemia in Indian women, offering a practical and well-tolerated solution. The study involved 179 participants who received the supplement bar for 90 days, resulting in increased hemoglobin and hematocrit levels.
A new study from Uppsala University found that delaying umbilical cord clamping by more than three minutes can prevent iron deficiency and anemia in infants up to six months of age. This method resulted in a nine percent reduction in anaemia incidence at eight months and an eight percent decrease at twelve months.
New research suggests that erionite's carcinogenic effect may be caused by its fibrous structure, rather than iron present in accompanying minerals. The mineralogists' findings raise questions about the role of ferrous particles in erionite's toxicity.
A phase 3 trial found that oral ferric citrate significantly boosted hemoglobin levels in patients with chronic kidney disease, correcting anemia. The treatment effect was seen as early as 1-2 weeks after starting treatment and was durable.
A new study reveals how Roseobacter bacteria claim heme from algal cells, recycling iron into the marine food web. This process keeps iron near the surface, influencing plankton growth and ocean nutrient cycles.
Researchers found that iron deficiency anemia reduces the risk of malaria by 16% in African children, compared to sickle-cell trait, which only reduces it by 4%. Iron supplementation reverses this protection, increasing the risk of P. falciparum malaria.
Researchers found that waffles baked on steel plates at a high temperature for a short amount of time minimize sticking and reduce product loss. The study also identified the optimal baking temperature and type of release agent to achieve this result.
Researchers find metallic iron slivers in exceptionally large stones, indicating a liquid metal origin. The discovery provides insight into the geological formation of massive diamonds, such as the Cullinan Diamond.
Research finds that high levels of free haemoglobin in the blood are associated with increased brain shrinkage in patients with secondary progressive multiple sclerosis. The study suggests that treatments targeting haemoglobin levels, rather than iron, may be a more effective approach to slowing disease progression.
Scientists at Swiss Federal Laboratories for Materials Science and Technology (EMPA) are working on a novel treatment approach for blood poisoning. They aim to remove bacteria from the blood using magnetic purification, which could potentially replace antibiotics in some cases.
Researchers found that administering amlodipine alongside chelation therapy effectively reduces cardiac iron in patients with thalassemia major, potentially combating heart failure and fatal arrhythmias. The treatment is considered safe and inexpensive, with no significant side effects.
A recent study found significant correlations between East Asian dust events and chlorophyll a concentration in the North Pacific Ocean and Chinese marginal seas. Dust fertilization on marine biological productivity was also observed, with phytoplankton growth related to dust deposition in the Yellow Sea.
Researchers used whole-brain MRI mapping to reveal pathological alterations in brain iron distribution. They found excess iron in areas like the substantia nigra and decreased iron content in previously overlooked regions, such as the dentate nucleus.
New research suggests that fast-cooking dry beans retain more protein, iron, and other minerals compared to slower-cooking varieties. This finding has significant implications for addressing global nutrient deficiencies, particularly among people with limited access to food options.
A study published in Diabetologia found that high iron biomarkers are linked to an increased risk of gestational diabetes in pregnant women. Higher iron stores may play a role in developing insulin resistance and oxidative stress, contributing to impaired insulin synthesis and secretion.
Researchers found microscopic signs of microbial activity in ancient rock formations from South Africa's Barberton greenstone belt, dated at 3.22 billion years old. The discovery suggests life took hold on land as early as 3.2 billion years ago.
Researchers at UCSB found that trace metals like iron can act as nonradiative recombination centers in gallium nitride semiconductors, reducing LED efficiency. The study highlights the importance of controlling growth and processing to prevent metal impurities from affecting device performance.
Researchers at the University of Houston have developed a novel method to induce superconductivity in calcium iron arsenide, a non-superconducting compound. This breakthrough demonstrates a concept proposed decades ago and offers a new direction for finding more efficient and less expensive superconductors.
A international research team has discovered a new biogeochemical process that explains the removal of dissolved iron from seawater in oxygen minimum zones. This process, which involves the reaction of iron with nitrate instead of oxygen, is essential for understanding nutrient availability and carbon fixation in the oceans.
A study led by ETH Zurich researchers found that iron fortification reduces blood lead concentration in children, particularly those with iron deficiency. The trial involved over 450 Moroccan schoolchildren who received iron-fortified biscuits and showed a significant reduction in blood lead levels.
Research finds that insects can contribute well-rounded meals with essential minerals like calcium, copper and zinc. Crickets have higher levels of iron than other insects, making them a promising source of this crucial nutrient.
A study found that nearly one-fourth of ulcerative colitis patients with iron deficiency anemia were untreated, despite being diagnosed. Testing rates varied by region, with lower rates for the Midwest and South.
Researchers at Georgia Tech developed a surface treatment method that significantly reduces friction without special oil additives. The technique involves blasting metal surfaces with copper sulfide and aluminum oxide, leading to ultra-low friction coefficients.
Researchers from FAU and Freie Universität Berlin have synthesised an iron compound in the rare oxidation state +4, a milestone in synthetic chemistry. The new molecule exhibits unique structural properties due to supramolecular interactions between ions.
Researchers propose combining multiple methods to identify cheating athletes, including hemoglobin mass, gene expression changes, ironomics, and blood storage-related biomarkers. These new tools offer a potential solution to detecting autologous blood transfusions.
Researchers found liver is the major site for elimination and recycling of red blood cells, contradicting previous belief that spleen plays a key role. The study identified bone-marrow-derived immune cells as the main recycling cells, which accumulate in the liver and recycle iron.
A University of Delaware-led team studies the biogeochemistry of ocean and coastal waters, focusing on manganese's role in marine ecosystems. The research aims to understand how manganese transitions between states and its impact on biological growth of marine organisms.
Researchers used nano-scale technique to discover iron oxide mineral formation in diamonds, shedding light on the origin of inclusions. The study solves a decades-old puzzle, revealing that oxidation of iron sulphides directly causes diamond formation.
Chemists at Berkeley Lab have successfully created a bionic enzyme by replacing iron in muscle protein with iridium, enabling a new type of chemical reaction. The discovery opens the door to converting complex structures in biomass and natural gas into higher-value materials and molecules for pharmaceuticals.
A team of Carnegie scientists has identified a form of iron oxide that resembles pyrite, which they believe could be responsible for seismic and geothermal signatures in the deep mantle. The discovery sheds new light on Earth's formation and evolution, and may even offer an alternative explanation for the Great Oxygenation Event.
Astronomers may discover these 'diamond worlds' around rare carbon-enhanced metal-poor stars, which formed in the early universe. Carbon-based life is thought to be universal, supporting the possibility of life on these unusual planets.
Researchers developed a new method to calculate elasticity of minerals at high pressure and temperature, reducing computational loads by up to tenfold. This allows for the constraining of Earth's interior composition and temperature with increased precision.
A new study published in PNAS found that iron fertilization had little to no effect on the growth of algae in the equatorial Pacific Ocean. The research, led by Gisela Winckler, used deep-sea sediment cores to test for barium and opal, and measures of thorium-232 reflected the amount of dust that blew in from land at each point in time.
Researchers at Université de Genève identified a protein Mac1 that plays a key role in recycling photosystem I components to recover iron. In response to nutrient deficiencies, the alga dismantles its photosystems and recycles some of their components.
A UGA study found that Saharan dust increases iron levels in ocean surface water, leading to large blooms of Vibrio bacteria. These bacteria can cause serious illness in humans and other marine organisms, and their rapid growth rate short circuits the theory of phytoplankton as the first responders to nutrient plumes.
New research reveals Saharan dust enriches underwater plants in the Caribbean with iron and other nutrients. However, this increase in nutrients also supports an explosive bloom of toxic bacteria such as Vibrio.
A new study suggests that sodium bicarbonate can reverse the effects of mucormycosis-promoting processes in DKA, a life-threatening condition. The researchers identified key host factors and fungal cell surface proteins that enhance infection and damage.
Researchers have developed minihepcidins, synthetic peptides that regulate iron absorption, to treat two genetic blood diseases. The compound normalizes red blood cell levels and reduces spleen enlargement in animal models of thalassemia and polycythemia vera.
Researchers recreated high-pressure conditions to study iron isotope fractionation, shedding light on Earth's core composition and planetary history. The study identified potential light elements in the core, including oxygen, silicon, and sulfur, and provides a new understanding of the planet's geochemical evolution.
A rare type of iron nucleus, with a half-life of 2.6 million years, serves as a 'clock' to measure the distance between Earth and the source of galactic cosmic rays. The data suggest that nearby supernovae in massive star clusters are responsible for creating these nuclei.
Researchers discovered bacteria capable of using iron as an electron acceptor, enabling them to process energy and potentially leading to the origins of life. The studies also have implications for the search for life on Mars, where iron metabolism could be a crucial component.
Researchers at TUM and USA colleagues have discovered unusually high concentrations of radioactive 60Fe in lunar samples from Apollo missions 12, 15 and 16. This evidence supports a supernova hypothesis, suggesting that one or more explosive events occurred close to our solar system approximately two million years ago.
Researchers describe the complex structure and proposed explanation for the unusual properties of Fe4O5, a recently discovered iron oxide that exhibits a four-dimensional crystal structure. The material shows similarities to magnetite but lacks ferroelectric properties, sparking interest in its potential practical applications.
Researchers at Argonne National Laboratory have discovered that only half the atoms in some iron-based superconductors are magnetic, providing a conclusive demonstration of wave-like properties of metallic magnetism. This finding allows for a clearer understanding of how magnetism induces superconductivity, enabling the development of ...
Researchers have created a new metallic glass with an unusual chemical structure that makes it incredibly hard and yet elastic. The material can withstand heavy impacts without deforming and retains most of its original strength.
An international team of scientists has proven that technetium carbide cannot be synthesized, contrary to previous claims. The researchers used computational models to calculate the stability of various transition metal carbides and found that only low-carbon technetium compounds can exist.
Researchers at University of California, San Diego have developed a new cell labeling probe using fluorine-19, which can be detected by magnetic resonance imaging (MRI), allowing for the visualization of cell behavior. The addition of iron enhances the MRI signal, making it possible to track cells quickly and clearly.
A new study published in the American Journal of Pathology suggests that green tea's antioxidant properties may be compromised when consumed with iron-rich foods or supplements. The researchers found that the main compound in green tea, EGCG, loses its ability to inhibit pro-inflammatory enzymes when bound to iron.
Researchers identified a more selective iron chelator compound named adaptaquin that blocks specific iron-containing enzymes without affecting total iron. This compound may provide neuroprotection after a brain hemorrhage event by blocking a protein called ATF4, which drives cell death in neurons.
A study by University of Granada researchers found that maternal DHA supplementation enhances fetal iron metabolism, improving iron reserves and preventing anemia-related complications. The research involved 110 healthy pregnant women who received either a balanced diet or a balanced diet with omega-3 supplements.
Researchers developed a new approach to designing insulin-based pharmaceuticals using self-assembling nano-insulin. This method could lead to more personalized medications with fewer side effects for Type 1 Diabetes patients.
A study published in Gut journal found that oral and intravenous iron replacement therapies alter the gut microbiota significantly, particularly in Crohn's disease patients. These changes may lead to unstable bacterial ecosystems and increased risk of disease flares.
Concentrations of iron similar to those delivered through standard treatments can trigger DNA damage within 10 minutes, when given to cells in the laboratory. Researchers from Imperial College London suggest that standard treatment dosages may be causing cell damage, highlighting the need for careful consideration of iron levels.