Articles tagged with Ions
Researchers at DESY NanoLab discovered that platinum oxidizes more readily than expected when exposed to high pressures of oxygen, forming nano-bubbles. This phenomenon has significant implications for applications such as catalytic converters in cars and electrochemical sensors.
A team of researchers has identified a mechanism that contributes to the degeneration of axons in multiple sclerosis, leading to permanent neurological deficits. They found that minuscule ruptures in the cell membrane allow calcium ions to enter the neuron, disrupting its balance and ultimately killing it.
Researchers developed a new tool, NIR-GECO1, to visualize neural activity using near-infrared light, enabling deeper brain imaging. This breakthrough has implications for understanding brain functions and disorders, including neurodegenerative diseases.
Researchers at Kiel University have discovered a new effect where energetic plasma ions can excite electrons in solids, leading to the formation of so-called doublons. This effect has potential applications in nanoelectronics and optical lattices.
Researchers from Lehigh University's STAR Collaboration, led by Rosi Reed, use the Beam Energy Scan to test the limits of quark-gluon plasma and map its phase diagram. The goal is to understand the nuclear strong force and Quantum Chromodynamics.
A marine bacterium has discovered a novel ferritin mechanism to control toxic metals, producing an enhanced ability to detoxify reactive oxygen species. This process is unique among known ferritins and holds promise for future engineered biocatalysts in drug development.
Researchers developed new materials to adjust transport layer properties, suppressing recombination and enhancing charge extraction. The study showed that permittivity and doping density of transport layers significantly impact PSCs' performance.
Scientists at North Carolina State University and CDC develop technique to measure insecticide distribution on mosquito netting. This allows determination of how long the nets remain effective in killing mosquitoes.
Researchers at the University of Michigan have developed a new memristor that can model synaptic behavior in hardware, allowing for exploration of competition and cooperation among neurons. The device enables controlled changes in conductance, mimicking the strengthening or weakening of connections between neurons.
Researchers developed a cheap and effective new catalyst that can split water just as efficiently as costly platinum. The catalyst is made from nanometer-thin sheets of metal carbide and is manufactured using a self-assembly process that relies on gelatin, similar to Jell-O.
Scientists at HZDR created an iron-rich compound in a semiconductor that became magnetic due to the formation of two-dimensional lamellae. This unusual structure could help understand superconductors and optimize their properties.
Experiments at PPPL demonstrate striking similarities between laboratory findings and satellite observations of magnetic reconnection in space. Researchers found that electron and ion currents flow perpendicular to the magnetic field, converting energy and leading to northern lights, solar flares, and geomagnetic storms.
Researchers have made improvements to fluoride-based batteries that allow them to operate at room temperature, potentially rivaling lithium-ion batteries. This breakthrough could lead to the development of high-energy density batteries with wider operating voltage and stability.
An international team has reported the induction of helimagnetism in a simple cubic crystal by carefully selecting ions of different size. Systematically replacing strontium ions with larger barium ions caused the lattice to expand until ferromagnetic order was disrupted, resulting in helimagnetism.
Researchers developed a new EPR method using a nanomembrane to analyze metalloproteins with minimal liquid sample. The technique detects changes in magnetic properties and enables sensitive measurements across a wide frequency range, shedding light on the mechanisms behind these vital proteins' functions.
E. coli's KdpFABC transport system uses a unique combination of pore and transporter to import potassium ions into the cell, blurring the boundaries between passive transport and active transport complexes. This discovery challenges the long-held dogma that these two systems are mutually exclusive.
Brown University researchers have developed a new smart material made from alginate and graphene oxide that is stiffer and more fracture-resistant than alginate alone. The material can also become softer or stiffer in response to different chemical treatments, making it useful for dynamic cell cultures and coatings.
Researchers at MIT have developed a method to control magnetic properties of thin-film materials using hydrogen ions, enabling spintronics devices that consume less power and generate less heat. This breakthrough has the potential to overcome physical limitations in memory and logic devices.
Scientists developed a new method to produce nanodiamonds and silicon carbide with defined defects, utilizing neutron irradiation in nuclear reactors. This approach enables the efficient production of rare nanomaterials for medical applications, including cancer diagnostics.
ETH Zurich researchers have demonstrated a novel quantum error correction technique that can monitor and correct errors in real-time. The technique, which uses trapped ions to encode quantum information, has been successfully tested with repeated measurements on the same system, exceeding previous experimental limits.
Scientists at the University of Sussex have developed a method to reduce disruptive environmental effects on trapped ion quantum computers. The breakthrough enables the creation of large-scale quantum computers capable of solving complex problems, with potential applications in fields such as medicine, finance, and agriculture.
Rare earth ions exhibit potential for storing quantum states and interacting with each other, enhancing computation capacity. Researchers aim to establish scalable quantum technologies using these elements.
Researchers have identified a novel subclass of metal-free ribonucleotide reductase enzymes used by bacterial pathogens to replicate their DNA without the required metal ions. This discovery could drive the development of new, more effective antibiotics that target this enzyme.
Researchers at NIMS Japan developed an ionic device that can make decisions quickly and adapt to changing situations without relying on computer memory. The technology has the potential to develop novel AI systems processing analog information using hardware, addressing issues with current digital-based systems.
A joint research team has discovered a new analysis method that reveals nanoparticles continue to grow and transform into bulk materials in the early stages of nanomaterial growth. This finding contradicts classical nucleation theory, which assumes critical nuclei are created early in material growth.
Researchers have successfully observed and studied the ionization-induced self-channeling of a microwave beam in a neutral gas. This effect enables the microwave to propagate a longer distance, potentially leading to military applications as a directed-energy weapon.
Researchers at EPFL have successfully controlled a chemical reaction just above absolute zero by manipulating atomic orientation and energies. The study has significant implications for understanding fundamental chemistry models.
A new study reveals Saturn's innermost D ring is hurling dust grains coated in its chemical cocktail into the planet's upper atmosphere at an extraordinary rate. This infalling material may change the carbon and oxygen content of the atmosphere, prompting questions about the rings' formation and lifespan.
Researchers found that deep space bombardment can significantly damage gastrointestinal tissue, leading to long-term functional alterations and high risk of tumor development. The study's findings raise concerns about the health of astronauts on long voyages, such as Mars.
A new plasma thruster technology has been developed to remove space debris, decelerating it with a force imparted from the satellite. The system uses bi-directional ejection of plasma plumes, controlled by a magnetic field and gas injection, for efficient removal in three operational modes.
Researchers have discovered the molecular mechanism behind quinoa's ability to store salt in its bladder cells, allowing it to thrive in saline soils. This unique adaptation enables quinoa to transfer excess salt to final storage sites without harming the plant.
A new study elucidates the structure of lactoferrin, a protein that binds tightly to free iron ions to prevent damage to proteins and DNA. The researchers discovered that an amino acid plays a key role in the conformation stability of the protein.
Purdue University researchers have developed a cheap and stable sodium-ion battery alternative to lithium-ion batteries, using sodium powder to prevent 'getting lost' during charging and discharging. The new technology has improved cycling performance and capacity of the battery.
Physicists at RUDN University have developed a new approach to calculate ionization energies of helium atoms with high accuracy, up to 35 decimal digits. This breakthrough resolves the limitations of previous methods, enabling precise measurements of exotic helium atoms and shedding light on the nature of antimatter.
X-ray experiments reveal complex pathways lithium ions take through a common battery material, contradicting long-held assumptions. This discovery could lead to improved battery design and longer-lasting batteries.
Researchers from RUDN University and University of Hamburg create a new method to simplify multi-dimensional calculations for atomic systems, applicable to hybrid atom-ionic structures. This breakthrough enables the study of new complex quantum effects and potentially helps model quantum computers.
Researchers at Harvard Medical School have finally identified the elusive sensor protein responsible for hearing and balance. The discovery reveals that TMC1 forms a sound-activated pore that converts sound and head movement into nerve signals that travel to the brain, enabling hearing and balance.
Researchers found that nanoparticles and contaminants can be deadly to human cells, especially when combined. Exposure to silver nanoparticles alone was less toxic, but combining them with cadmium ions increased cell death by 60%. The study highlights the need for regulations on nanoparticle releases into the environment.
Scientists have developed a new method to shuttle lithium ions into the crystal structure of samarium nickelate, a quantum material with exotic electronic properties. This breakthrough could lead to more efficient energy storage and novel applications in computing.
A team of scientists has discovered a unique planetary nebula with an inverted ionization structure surrounding a central star undergoing a 'born-again' process, which is expected to occur in the Sun's future evolution. This finding provides valuable insights into the late-stage evolution of stars like our Sun.
Researchers at the University of Michigan have developed a new rechargeable battery technology using lithium metal that can double the output of current lithium ion cells. The ceramic electrolyte-based approach eliminates the historic issues of poor durability and short-circuiting, enabling faster charging rates and longer lifetimes.
Researchers at New York University find that water's density increases above freezing point and cooling it down reveals asymmetry in ion transport. This discovery could lead to new materials for clean energy applications and deeper understanding of water's properties.
Researchers at a nuclear astrophysics lab achieved an order-of-magnitude increase in normalized brightness after upgrading their accelerator. The new system improved high-voltage source stability and signal-to-background ratio, enabling higher proton beam intensity without damaging targets.
A new type of airway cell, pulmonary ionocytes, has been found to express high levels of CFTR, a protein mutated in cystic fibrosis. This discovery provides promising targets for future therapeutic strategies against the disease.
A team of researchers has identified a new type of pulmonary ionocyte, which is the site of cystic fibrosis-causing CFTR gene activity. This discovery could lead to new therapeutic approaches by increasing CFTR activity in affected cells.
Researchers at KAUST have developed a laser-based process to create three-dimensional hard carbon anodes with improved conductivity and capacity for sodium-ion batteries. This breakthrough enables the mass production of high-performance anodes, paving the way for widespread adoption of sodium-ion batteries in energy storage applications.
Researchers developed a novel antibacterial glass ionomer cement with chlorhexidine-encapsulated mesoporous silica, which significantly enhances anti-biofilm ability and maintains mechanical properties. The study proposes a new strategy for preventing secondary caries by using this modified GIC.
The Interstellar Mapping and Acceleration Probe (IMAP) mission will investigate the heliosphere, surrounding our solar system, and collect data on particle acceleration and interaction with interstellar medium. The $492-million mission includes 10 instruments to resolve scientific questions about the solar wind and cosmic rays.
Researchers at the University of California - San Diego have developed a new laser material that combines high power density, ultra-short pulses, and superior thermal shock resistance. The material is achieved through a novel materials processing strategy that dissolves high concentrations of neodymium ions into alumina crystals.
A team led by Lehigh University's Brandon Krick is using a Molybdenum Disulphide (MoS2) coating to reduce friction in space, addressing the challenges of high-temperature and corrosive environments. The research aims to improve satellite performance and reduce energy loss.
Researchers create nanodevices using kirigami-inspired technique to filter out circularly polarized light, potentially enabling new applications in sensing, computation, and communications systems. The approach could lead to smaller, more efficient detectors and nanoscale optical isolators for laser optical communications systems.
Researchers at Cornell University have developed a new battery design that could increase the power of lithium-ion batteries by confining dendrite growth in electrolytes, reducing instability and improving lifespan.
Benjamin Jones, a UTA physicist, has been awarded $750,000 to develop a sensor for detecting neutrinos, which could help explain the universe's matter-antimatter imbalance. The award supports his research on neutrinoless double beta decay and its potential to illuminate the origin of neutrino particles' small mass.
A new oral insulin formulation based on ionic liquids has been successfully developed, showing stability at room temperature and under refrigeration. The formulation significantly reduces blood glucose levels in rats, with up to 45% decrease observed after oral delivery.
Researchers at Texas Tech University Health Sciences Center identified a specific amino acid residue responsible for inverting potassium channel communication. The study paves the way for developing novel and safer therapeutic drugs to correct illnesses associated with potassium channel dysfunction.
Researchers at the University of Copenhagen have discovered a new mechanism for transporting water to the brain, challenging the long-held belief that osmosis is responsible. The co-transporter process could potentially be targeted with medicine to treat conditions like brain haemorrhage and hydrocephalus.
Researchers at SISSA observed an increase in nerve cell activity on graphene carpets, attributed to ion 'trapping' that modulates its composition. This phenomenon enhances neuronal excitability, with specific effects depending on the graphene's support material.
Scientists at Osaka University have discovered a novel particle acceleration mechanism using micro-bubble implosion, emitting high-energy protons at unprecedented levels. This breakthrough could clarify unknown space physics and lead to new applications in medical treatment and industry.
Lithium ions embed in host particles during charging, causing expansion and stress. The team used Digital Volume Correlation routine to measure internal changes in volume after lithiation, tracking electrode deformation at each point.
A French nanorobotics team has successfully assembled the world's smallest house using a new microassembly system. The μRobotex nanofactory allows for precise control over nanostructures and optical fibers, enabling advanced sensing technologies and applications.