Articles tagged with Ions
Researchers at Cold Spring Harbor Laboratory have developed a new technique to improve mass spectrometry, enabling better drug target discovery and tumor analysis. The innovation increases sensitivity by breaking down scans into smaller bins, allowing for more accurate measurement of differences in concentration.
Scientists have synthesised a new class of materials called state-independent electrolytes that allow negatively charged ions to move freely in solid and liquid states. This discovery opens possibilities for safer, lightweight solid-state devices with potential applications in batteries, sensors, and electrochromic devices.
Researchers at Virginia Tech have developed a new method for removing frost from surfaces using electrostatic defrosting (EDF), which can remove up to 75% of the frost without the need for heat or chemicals. The approach uses high voltage to polarize the frost, creating an electric field that detaches microscopic ice crystals.
Researchers developed a new atomically layered material that reduces resistivity by five orders of magnitude when oxidized, exceeding similar non-layered materials. The team discovered a synergy between oxidation and structural modification driving dramatic changes in physical properties.
Engineers develop a self-forming protective layer to prevent dendrite growth and parasitic reactions, enabling unprecedented performance and resilience. The bi-directional regulation system maintains stability across wide temperatures, paving the way for practical grid-scale applications.
A new membrane developed by Rice University selectively filters out lithium from brines, achieving high selectivity and using considerably less energy. The membrane's design can be adapted for other valuable minerals like cobalt and nickel, and its durability makes it suitable for large-scale synthesis.
A team developed a metal-organic framework (MOF) neuron that perceives dopamine, a key neurotransmitter in the brain. The device demonstrated synaptic plasticity, integrate-and-fire dynamics, and spike tuning, mirroring biological neurons' behavior.
Researchers at Rice University have developed a new method to fabricate ultrapure diamond films for quantum and electronic applications. By growing an extra layer of diamond on top of the substrate after ion implantation, they can bypass high-temperature annealing and generate higher-purity films.
Researchers from TIFR Hyderabad have successfully accelerated protons to hundreds of kilovolts using few millijoule lasers, repeating at a thousand times per second. This breakthrough enables high-repetition-rate laser-driven ion accelerators on university lab table tops without extreme laser intensities or pre-pulse suppression.
The 56th Annual Meeting of the American Physical Society's Division of Atomic, Molecular and Optical Physics will present new research on quantum computing, lasers, and Bose-Einstein condensates. Over 1,200 physicists from around the world will convene in Portland, Oregon, June 16-20.
A team of scientists at UNIST developed a data-driven structure prediction algorithm that led to the synthesis of three novel porous materials with exceptional selectivity in gas separation. The newly developed materials have significant potential for greenhouse gas separation and purification applications.
Researchers have discovered a new shape for energy storage using cone and disc carbon structures, which can store large ions like sodium and potassium efficiently. The discovery could lead to more affordable and sustainable battery technologies, reducing reliance on lithium.
Researchers at USTC directly observed ion acceleration through reflection off laser-generated magnetized collisionless shocks, demonstrating the role of shock drift acceleration. The experiment confirmed SDA's dominance over shock surfing acceleration, shedding light on cosmic particle origins and potential applications in fusion.
Arup K. SenGupta, a renowned water scientist at Lehigh University, has been honored with the ASCE Freese Award and Lecture for his pioneering work in ion exchange science and technology. He will present on 'Development and Global Application of Hybrid Ion Exchange Processes' during the 2025 World Environmental & Water Resources Congress.
Researchers developed a novel anode material combining hard carbon with tin, enhancing energy storage and stability. The composite structure shows excellent performance in lithium-ion and sodium-ion batteries, promising applications in electric vehicles and grid-scale energy storage.
Researchers developed a bio-inspired thermoelectric cement with a Seebeck coefficient of −40.5 mV/K, surpassing previous materials by ten times. The composite achieves superior mechanical strength and energy storage potential, enabling continuous power supply for electronic devices.
Researchers developed a novel 2D phase-transition memristor leveraging intrinsic ion migration to overcome existing device limitations. The device achieves record-low power consumption, ultrafast switching speed, and exceptional endurance, making it suitable for high-speed computing applications.
Researchers developed Cu/Zn solid-solution phase hosts to overcome electrochemical limitations in multivalent metal ion batteries. The material's layered crystal structure and abundant interlayer confined species provide favorable diffusion pathways for charge carriers.
Physicists at Max-Planck-Institut fur Kernphysik measured the g factor of highly charged boron-like tin ions with a precision level of 0.5 parts per billion. The result demonstrates potential for competitive determination of fine structure constant α, governing electromagnetic forces throughout the universe.
RHIC physicists will complete data collection for one of the collider's central goals: creating and studying a unique form of matter known as a quark-gluon plasma (QGP). The QGP is expected to provide crucial insights for the future Electron-Ion Collider (EIC), which will be built by reusing components of RHIC.
Physicists have measured a nuclear reaction that can occur in neutron star collisions, providing direct experimental data for a process previously only theorized. The study provides new insight into how the universe's heaviest elements are forged, with potential applications in nuclear reactor physics.
Researchers have developed novel membranes that can pull lithium directly out of salt-lake brines using electricity, leaving other metal ions behind. The process could reduce the environmental impact of lithium mining and contribute to more efficient energy storage systems for renewable energy sources.
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.
A POSTECH research team has developed a new catalyst using aluminum, improving the performance of hydrogen production in alkaline water electrolysis by approximately 50%. The aluminum catalyst maintained high current density and excellent stability, making it suitable for large-scale hydrogen production.
A team of researchers, led by Kelsey Hatzell from Princeton University, has made breakthroughs in developing anode-free solid-state batteries. These batteries have the potential to store more energy in less space and operate with high performance at a wider range of temperatures.
Researchers at Nagoya University developed a new technique to improve electrode performance in seawater purification, allowing for higher surface area and increased efficiency. The oxygen-doped electrodes show promise for reducing water purification costs and expanding applications beyond water treatment.
Researchers developed Janus-type supramolecules that form stable ribbon-type assemblies, guiding the arrangement of ion channels across lipid membranes. The supramolecular channels mediate efficient and selective K+ transport, disrupting cancer cell balance and inducing apoptosis.
Researchers at Tohoku University used MRI to directly observe metal-ion dissolution in lithium battery cathodes, detecting small amounts of manganese with high sensitivity. The technique identified an alternative electrolyte system that suppresses dissolution, promising improvements in battery performance.
A team developed a semiconductor sensor to visualize biomolecule dynamics in solutions, achieving milliseconds time resolution and micron spatial resolution. The sensor captures movement of neurotransmitters and ions, enabling the detection of chemical signals in microscopic regions.
Researchers have developed polymer membranes with enhanced selectivity for monovalent ions, allowing for efficient water recycling. The use of metal ions such as copper, zinc, and chromium enables the separation of nitrates from sulphates, opening new possibilities for sustainable water treatment.
Researchers have created a detailed structural map of GABA A receptors in the human brain, revealing how they assemble and interact with drugs. The study provides new insights into treating epilepsy, anxiety, depression, and insomnia, and paves the way for customized therapies.
Researchers developed a metal-organic cage that selectively recognizes and encapsulates radioactive strontium, achieving a 99.7% removal efficiency at low concentrations. The novel material design enables precise recognition sites within the cage's cavity.
A newly developed ion crystal clock has demonstrated record accuracy, reaching an uncertainty close to the 18th decimal place. This achievement marks a significant step towards redefining the second in the International System of Units (SI), as optical clocks are now 100 times more accurate than current caesium clocks.
Researchers have created a model system with a defect in graphene that allows certain ions to pass through, including chloride. This breakthrough has significant implications for water filtration membranes, artificial receptors, and chloride channels.
Researchers at RHIC reveal direct evidence that even small nuclei can create tiny specks of quark-gluon plasma, a key signature of the primordial soup. The study finds that energetic particles lose energy and slow down significantly in these collisions, indicating the presence of QGP.
Researchers from Trinity College Dublin have developed 'Malteser-like' molecules that can be governed to produce predictable and desirable self-assembly structures. These molecules hold promise for applications in highly sensitive sensors, next-gen targeted drug delivery agents, and luminescence-based monitoring.
A team of researchers discovered supra-thermal DT ions beyond Maxwellian distributions in ICF burning plasmas. The new hybrid model predicts a ~10 ps ignition moment promotion, enhanced alpha particle densities at the hotspot center, and the presence of supra-thermal D ions below 34 keV.
A UVA professor has made new discoveries about electron kinetic behavior within plasma beams, potentially revealing the 'shape' of future space technology. The findings could lead to more efficient and reliable electric propulsion systems for long-duration space missions.
Researchers have created a new circuit model that accounts for small changes to the sensor's behavior, allowing it to detect protein or DNA molecules from a sample. The device could lead to earlier diagnosis of diseases and more precise therapies tailored to each patient.
Researchers discovered supra-thermal DT ions beyond Maxwellian distributions in burning plasmas of inertial confinement fusion. The findings, achieved through innovative modeling and simulations, challenge existing models and offer new insights into the physics of these extreme conditions.
Researchers at UW and PNNL studied atomic composition of enamel samples from two human teeth, one 22-year-old and one 56-year-old, to understand how enamel changes with age. The study found higher levels of fluoride in the older tooth's shell regions, which could have implications for understanding tooth health as we age.
Researchers found β-ionone alleviates ulcerative colitis symptoms by protecting the gut barrier and restoring microbial balance. The study suggests ION's therapeutic potential for UC management, offering an alternative to current drug treatments.
Researchers at GSI Helmholtzzentrum für Schwerionenforschung GmbH measure half-life of thallium-205 ion decay to understand Sun's long-term stability and its connection to Earth's climate. The experiment, known as LOREX, provides insights into the Sun's evolutionary history.
A team of scientists analyzed smartphone videos and amateur photos of a rare blue-dominant aurora in Japan to estimate its area and confirm findings with spectrophotometers. The research revealed longitudinal structures aligned with magnetic field lines, spanning about 1200 km in longitude.
Researchers at University of Wisconsin-Madison have invented a water-soluble chemical additive that improves the performance of bromide aqueous flow batteries, making them more efficient and long-lasting. The additive solves issues such as ion leakage and gas formation, enabling the use of these batteries for grid-scale storage.
Researchers developed a nano-patterned copper oxide sensor to detect hydrogen at low concentrations, outperforming previous CuO-based sensors. The sensor detects hydrogen concentrations as low as 5 parts per billion and responds quickly, making it suitable for leak detection and ensuring safe adoption of hydrogen technologies.
Researchers at Washington State University have discovered a way to accelerate ions in mixed organic ion-electronic conductors, setting a new world record for ion speed. This breakthrough could lead to improved battery charging, biosensing, and neuromorphic computing.
Research found that iron oxide nanoparticles reduce the lifespan, longevity, and reproductive ability of Enchytraeus crypticus in a 202-day study. Population density may influence nanoparticle toxicity, with lower-density groups experiencing greater harm.
Three Ph.D. students and a postdoctoral researcher from Texas A&M are working on RTE projects to create new materials for future nuclear reactors. They are using the Texas A&M Accelerator Laboratory and Idaho National Laboratory to irradiate material, creating voids that can help understand swelling in nuclear reactors.
Researchers from Kyushu University successfully promoted singlet fission by introducing chirality into chromophores, achieving high SF efficiency in aqueous nanoparticles. This breakthrough enables applications in energy science, quantum materials, and photocatalysis.
Researchers at Nagoya University developed an innovative method to synthesize amorphous nanosheets from challenging metal oxides and oxyhydroxides. The process uses surfactants to create ultrathin layers with numerous defects, making them excellent active sites for catalytic reactions.
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.
A new MOF has been developed using a 'Merged-Net Strategy' inspired by skyscraper architecture, resulting in enhanced porosity and structural stability. The material exhibits superior water adsorption capacity and reusability compared to conventional MOFs.
Researchers have introduced Tune-IMS, a technique that improves the precision of isochronous mass spectrometry for measuring short-lived atomic nuclei. The method has been successfully tested on several nuclides and has shown higher precision than previous IMS methods.
Research discovered that chloride ion channels play a role in glioblastoma cell division and proliferation. By blocking these channels, replication can be stopped, pointing to ion currents as a potential target for therapeutic approaches.
Researchers have developed a new model of the electric double layer, accounting for various ion-electrode interactions. The model predicts a device's ability to store electric charge and aligns with experimental results.
Researchers found inorganic nanostructures surrounding deep-ocean hydrothermal vents that mimic molecules essential for life. These structures can harness energy and convert it into electricity, sparking interest in applying this technology to industrial blue-energy harvesting.
Researchers at the CNIC found that respiratory complex I possesses sodium transport activity essential for efficient cellular energy production. This discovery provides a molecular explanation for Leber's hereditary optic neuropathy and may have implications for other neurodegenerative diseases.
Researchers at Japan Advanced Institute of Science and Technology developed a densely functionalized polymeric binder for high-performance lithium and sodium-ion batteries. The new material showed exceptional electrochemical performance, high capacities, and great cycle stability.
Researchers at TU Wien have developed a new method to generate extremely short, powerful ion pulses for controlled analysis of material surfaces. These pulses can be used to observe chemical processes in real-time, providing insights into surface physics and chemistry on a picosecond time scale.