Articles tagged with Uranium
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A study investigates uranium exposure in children living near gold mining dumps and finds higher levels of uranium in their hair compared to children from reference sites. The study collected over 400 hair samples and analyzed them alongside information on the children's age, gender, and living conditions.
Researchers systematically analyze recent advances in electrochemical strategies designed to extract uranyl from complex aqueous environments. Electro-adsorption, electrocatalysis, and photo-electrocatalysis approaches offer a potentially energy-efficient alternative to traditional chemical separation methods.
Researchers have developed a promising new method to recover uranium from challenging wastewater streams using an indirect electrochemical process combined with a self-standing covalent organic framework electrode. The approach achieves high efficiency, long-term stability, and strong tolerance to chemically complex environments.
Researchers create a new material that dramatically boosts uranium extraction efficiency, addressing one of the key challenges in sustainable nuclear energy. The study introduces a special type of covalent organic framework (COF) that shows record-high efficiency and selectivity in isolating uranium from seawater.
The M-Cube associated research laboratory combines micron-level visualization tools with precise mineralogical and geochemical analyses to identify new avenues for optimizing the mining cycle. The collaboration aims to reduce the environmental impact of uranium mining sites and better understand the mobility of radioactive descendants.
Researchers from Helmholtz-Zentrum Dresden-Rossendorf discovered how diatoms chemically interact with uranium, finding it bound both on the surface and within the algae. The team's findings provide initial insights into the chemical bonds formed and help understand the impact of uranium release on natural cycles.
A new study identifies a biomarker that can detect kidney accumulation of uranium, a common contaminant in drinking water, potentially leading to chronic kidney disease. The research suggests a non-invasive way to monitor kidney health and prevent damage from low-level uranium exposure.
Scientists have developed a molecular uranium catalyst that can bind nitrogen gas in a 'side-on' way and convert it into ammonia. This breakthrough reveals a new catalytic pathway, bridging biological efficiency and industrial feasibility.
A 2.35-billion-year-old meteorite offers fresh insights into the Moon's volcanic history and suggests ongoing internal heat generation processes. The rock's distinct composition provides new constraints on when and how volcanic activity occurred on the Moon.
A new study reveals how specific underground conditions lead to toxic uranium levels in drinking water. The research could help local communities monitor and manage this health threat by identifying areas with high contamination risk.
Researchers developed a novel protein, LSUBP, to enhance uranium extraction from seawater. The engineered protein achieves high adsorption capacity, offering a promising new material for effective uranium extraction.
Researchers developed a biomimetic adsorbent inspired by the natural porous structure of the Chinese sweet gum tree's fruit. The hierarchical nano-trap framework significantly enhanced ion diffusion and increased uranium adsorption capacity, outperforming competitive ions in real seawater tests.
The grant aims to develop an electrochemical system capable of recovering uranium from wastewater, improving ecosystem health and addressing uranium security. The project will focus on designing electrode materials for efficient uranium extraction and minimizing toxic waste.
Researchers at Lawrence Berkeley National Laboratory have discovered the first organometallic molecule containing berkelium, a highly radioactive element. The discovery reveals that berkelium exhibits a unique tetravalent oxidation state, challenging traditional understanding of its behavior in the periodic table.
Researchers have developed a new method to image nuclear shapes using high-energy particle smashups at RHIC, revealing subtle details about atomic nuclei. This technique complements lower energy methods and has implications for fields like nuclear fission, neutron stars, and exotic particle decay.
A team of scientists used synchrotron light to explore low-valent uranium compounds, accurately identifying the three-valent oxidation state in uranium. The findings shed new light on actinide bonding and demonstrate how uranium's 5f electrons respond to changes in their environment.
Researchers at Oak Ridge National Laboratory have documented the chemistry dynamics and structure of high-temperature liquid uranium trichloride (UCl3) salt, a potential nuclear fuel source for next-generation reactors. The study used neutron scattering techniques to reveal details about the nature of materials, including the bonding d...
A team of researchers, led by Associate Professor Hiroyuki Fujioka from Tokyo Institute of Technology, investigated the feasibility of bound tetraneutron emission in thermal neutron-induced fission of Uranium-235. They found that the instrumental neutron activation method can be applied to address open questions in nuclear physics.
Researchers create electrode material that attracts uranium ions from seawater more efficiently than existing methods. The material extracts 12.6 milligrams of uranium per gram of coated, active material over 24 days.
Researchers found high levels of anthropogenic uranium in turtles and tortoises from areas contaminated with nuclear fallout and waste. The shells of these animals can serve as environmental monitors for legacy contamination.
Researchers from the University of Iowa and Brookhaven National Laboratory create 14 organic-inorganic hybrid materials, including seven entirely new ones, to advance clean energy and safe nuclear energy. The study reveals new bonding mechanisms and insights into material separations and recycling.
Scientists at University College Cork have discovered a spatially modulating superconducting state in UTe2, a new and unusual superconductor that may provide a solution to one of quantum computing's greatest challenges. This discovery has significant consequences for the future of computing.
The HERA team has improved the sensitivity of a radio telescope, allowing them to detect radio waves from the cosmic dawn era. The data suggests that early galaxies contained few elements besides hydrogen and helium, unlike modern galaxies.
Researchers at the University of Nebraska-Lincoln have experimentally confirmed that nitrate can transport naturally occurring uranium from underground to groundwater. The study found that adding nitrate to water increased the amount of uranium carried away, implicating both nitrate and microorganisms in mobilizing the uranium.
A new study finds higher arsenic and uranium concentrations in public drinking water linked to communities with higher proportions of Hispanic/Latino and American Indian residents. The findings highlight inequalities in public water contaminant exposures affecting regions with more residents from communities of color.
The use of 3D printing techniques can optimize the shape of uranium targets to increase the production of molybdenum-99. This method allows for a larger active surface area and more effective heat dissipation, resulting in higher processing efficiency.
Sooby's research aims to develop an AI algorithm to rapidly provide high-quality data during alloy fabrication, reducing time and cost. Her lab collaborates with Computer Science professor Amanda Fernandez to leverage deep learning approaches for image labeling, increasing efficiency by 99%.
A team of researchers has discovered 1.2-billion-year-old groundwater containing radiogenic helium, neon, and xenon, which could sustain subsurface microbial communities. The study reveals how energy stored in the Earth's subsurface can be released and distributed through its crust.
A study by Ritsumeikan University researchers analyzed the life cycle assessment of nuclear power generation, revealing varying TMR coefficients across different mining methods and fuel cycles. The results show that nuclear power generates similar natural resources as renewable energy, significantly less than thermal power.
Researchers found that metal concentrations were particularly elevated in CWSs serving semi-urban, Hispanic communities, highlighting environmental justice concerns. Arsenic, barium, chromium, selenium, and uranium concentrations were also disproportionately elevated.
Researchers have successfully created a transuranium complex with a multiple bond to just one element, enabling the isolation of such compounds for the first time. The discovery has significant implications for nuclear waste clean-up and opens up new opportunities for actinide science.
Physicists at Rice University have found telltale signs of antiferromagnetic spin fluctuations coupled to superconductivity in uranium ditelluride, a rare material promising fault-free quantum computing. The discovery upends the leading explanation of how this state of matter arises in the material.
A bioinspired hierarchical porous membrane, based on intrinsic microporosity polymers, was developed to enhance uranium extraction from seawater. The membrane achieves higher numbers of interconnected multiscale channels, improving adsorption performance.
Researchers use radiochronometry and forensic methods to determine the age and origins of Heisenberg and Diebner cubes. The findings will help train international border guards and nuclear forensics researchers to detect nuclear material.
Scientists investigate the Alum Shale rock to reconstruct processes of oil and gas formation, identify possible traces of past life on Mars, and explore its potential as a site for nuclear waste disposal.
Researchers successfully reduced uranium, vanadium, and molybdenum levels in groundwater by more than ten-thousandfold using a 'sponge-like' mineral called calcium apatite. The technology has been shown to be effective and long-lasting without negative side effects.
Researchers have developed a technique using uranium-thorium dating of ostrich eggshells to precisely date garbage dumps in South Africa, revealing the site Ysterfontein 1 is over 100,000 years old and providing insight into early human settlement and population levels.
A study reconstructs permafrost's history over the last 1.5 million years, revealing that it shifted to a more stable state around 400,000 years ago. This stability suggests that more carbon is locked in the ground, potentially leading to greater climate change releases when thawing occurs.
Researchers at Chinese Academy of Sciences discover abnormal enhancement of α-particle clustering in uranium isotopes, revealing strong proton-neutron interaction influence on α-decay properties. The study reveals systematics trends and anomalies in α-decay reduced widths for polonium-plutonium nuclei near shell closure.
A new study published in Scientific Reports suggests that inhalation of depleted uranium from exploding munitions did not lead to Gulf War illness. Researchers used high-precision mass spectrometry to analyze veterans' urine samples and found no differences in uranium isotopic ratios between those with GWI and control veterans.
Researchers at Lund University challenge a 50-year-old theory by discovering new decay branches in flerovium nuclei. Their experiment showed that the predicted 'magical' properties of element 114 do not exist.
A new regional model predicts uranium contamination in California's Central Valley aquifers based on calcium concentrations and soil alkalinity. The study suggests that water managers can forecast solutions by including data about soil properties when generating aquifer vulnerability maps for naturally occurring contaminants like uranium.
Researchers from Far Eastern Federal University have improved a processing technology for monazite concentrate, increasing the extraction of thorium and rare earth elements. This new method provides a more eco-friendly nuclear fuel cycle with reduced waste accumulation and increased reactor lifespan.
Texas A&M University engineers have devised a simple one-step chemical reaction to separate out different components of nuclear waste. The method results in the formation of crystals containing all leftover nuclear fuel elements uniformly, reducing radioactivity and proliferation risk.
Researchers at the University of Illinois have used high-resolution microscopy tools to study an unusual type of superconductor, uranium ditelluride (UTe2). The measurements reveal strong evidence for the presence of exotic Majorana particles on its surface, which could provide insights into fundamental physics and quantum computing.
A team of scientists has identified a new isotopic signature, 233U/236U, that distinguishes between environmental emissions from civil nuclear industry and weapons fallout. This discovery provides a promising tool for tracing ocean currents and understanding the impact of human activities on the environment.
Physicists at HZB discovered a non-ferromagnetic phase in U2Pd2In crystals under high magnetic fields, with a structure containing 80 magnetic moments. The finding may help develop more precise theories for 5f electron systems and has implications for many other materials.
Researchers at UCSB have developed an electrochemical method for extracting uranium from solution, using carboranes as a key component. This technology enables efficient and reliable capture and release of uranium ions, with potential applications in nuclear waste reprocessing and seawater uranium extraction.
Researchers at the University of Sussex have found a way to convert depleted uranium into ethane, an alkane used to produce ethanol and other compounds. This breakthrough could reduce the storage burden of DU and lead to new energy sources, challenging previous fears about its health risks.
Researchers at Diamond Light Source and University of Manchester discovered a novel uranium-sulfur complex under conditions found in the environment, which can aid in uranium immobilisation. This compound forms through biogeochemical reactions involving dissolved chemical species, mineral surfaces, and microorganisms.
Scientists will analyze 160 Tournaisian shale samples to understand uranium isotope behavior under varying redox conditions. The project aims to decipher Earth's oxygenation history using this tool.
A US Department of Energy-backed robotic system has successfully identified the source of nuclear radiation and verified if it was shielded. The 'inspector bot' could be part of a swarm to inspect facilities like gas centrifuge enrichment plants, detect undeclared uranium use, or verify disarmament treaties.
Researchers have created tiny, self-propelled robots that can remove radioactive uranium from wastewater. The microrobots use a rod-shaped material called ZIF-8 and propel themselves using hydrogen peroxide fuel, successfully removing 96% of the uranium in an hour.
Researchers discovered re-entrant superconductivity in uranium ditelluride, a phenomenon where a superconducting state arises, breaks down, and then re-emerges. High magnetic fields induced the rare 'Lazarus' behavior, which has implications for quantum computing.
Scientists have mapped the evolution of complex uranium oxide species, creating a detailed picture of their formation and behavior. This research has practical applications in technologies like laser spectroscopy and verifying nuclear treaty compliance.
Scientists have reconstructed 300-million-year-old rainwater to study the history of Western France and its mountain range. The analysis suggests that the area was once mountainous, near the Equator, and subject to violent tectonic processes.
Researchers develop technology to measure antineutrino flow from nuclear reactors, allowing for remote monitoring of fuel changes. The technique has the potential to detect even small changes in fuel assemblies, enabling real-time verification of reactor operations.
Researchers have developed a method to test building material samples for signs of high-enriched uranium (HEU) use. The technique involves analyzing small core samples using hardware similar to radiation dosimeter badges.
A large-scale study found elevated levels of a biomarker for uranium toxicity in Kuwaiti children who developed obesity and metabolic syndrome. The study suggests that uranium exposure may contribute to the country's high rates of obesity and diabetes.
Researchers developed a novel material inspired by siderophores to selectively bind uranium in seawater, offering an eco-friendly alternative to land-mining. The new adsorbent shows promising performance, increasing storage space for uranium and allowing for recyclable reuse.