Articles tagged with Electrodes
A UC Berkeley study reveals the brain's orbitofrontal cortex replays and revisits nearly every feature of previous decisions after placing a bet. The researchers found that gamblers' regret from losing or not betting more is the main driver of activity in this region.
Researchers at the University of British Columbia have developed a plasma treatment method that modifies electrode surfaces to facilitate efficient water transport in fuel cells. This innovation enables fuel cells to operate effectively without excessive moisture, improving overall performance and energy conversion rates.
A pilot study found that transcutaneous electrical nerve stimulation improved arousal, lubrication, and orgasm in women with female sexual dysfunction. Eight out of nine participants reported significant improvements, comparable to or greater than prior studies of different treatments for FSD.
A new 'see-through' EEG device, developed by Boston Children's Hospital researchers, measures individual neurons with fine-grained precision. The transparent microelectrode array enables simultaneous neuroimaging and optogenetics experiments.
Researchers developed a ceramic steam electrode that self-assembles for high-performance electrochemical hydrogen production below 600o C. This breakthrough enables efficient hydrogen production using only water and electricity.
Researchers at The University of Tokyo's Institute of Industrial Science developed a method to detect the motion of individual molecules using terahertz radiation. This breakthrough allows for the study of molecular vibrations and electron tunneling with unprecedented sensitivity.
Researchers fabricated an asymmetric supercapacitor based on FeCo-selenide nanosheet arrays, demonstrating a specific capacitance of 978 F/g and cycle stability of 81.2%. The device also showed excellent electrochemical performance, providing evidence that FeCo-selenide could be the next-generation promising electrode material.
Researchers designed a novel molecular wire with a polyyne backbone and a ruthenium-based unit, achieving higher conductance than previous organic molecular wires. The origin of high conductance lies in orbital splitting, which induces changes in the electron orbitals to facilitate electron transfer between metal electrodes and the wir...
Researchers have developed a practical and inexpensive way to prevent lithium-ion battery fires by hardening the electrolyte on impact. The additive-based approach uses a shear-thickening behavior to block fluid flow, preventing electrode contact and fire.
A study published in the journal HeartRhythm recommends that pediatric patients with epicardial devices should get regular screening chest x-rays and cine CT scans or catheter angiography to assess their wires and detect coronary artery compression. This can help prevent fatal complications and identify patients at risk.
Nir Grossman's temporal interference (TI) approach stimulates deep brain regions without surgery, offering a new treatment option for brain disorders. TI uses multiple electric fields to target specific brain areas, improving spatial resolution and non-invasiveness.
Researchers at Columbia University have used Stimulated Raman Scattering microscopy to directly observe ion transport in electrolytes for the first time. They discovered a lithium deposition process with three stages: no depletion, partial depletion, and full depletion of lithium ions. The study also found a feedback mechanism between ...
Researchers at Carnegie Mellon University have developed a new 3D printing method that creates porous microlattice structures in battery electrodes, resulting in fourfold increase in specific capacity and twofold increase in areal capacity. The technology has potential applications in consumer electronics, medical devices, aerospace, a...
New class of materials has been identified that can be used to make batteries that charge faster. Lithium ions move through the materials at rates that exceed typical electrode materials, resulting in a much faster-charging battery. The researchers found that these materials, known as niobium tungsten oxides, do not result in higher en...
Researchers from the University of Basel and IBM Research - Zurich have developed a technique that allows electrical contact to individual molecules to be established. Thousands of stable metal-molecule-metal components can be produced simultaneously by depositing a film of nanoparticles onto the molecules.
A South Korean research team has developed an organic image sensor that captures vivid colors without color filters, increasing R/G/B color selection options. The new-concept image sensor uses a bonding technique between organic semiconductors and transparent electrodes, reducing surface defects and improving reproduction.
A new thermal camouflage system has been developed by researchers, allowing it to rapidly adapt to different temperatures and become indistinguishable from its surroundings. The system, which contains layers of graphene and an ionic liquid, can be applied to a variety of surfaces and is thin, light, and flexible.
A new capacitive sensor design created by Binghamton University professor Ron Miles allows for efficient sound sensing in devices without significant electrostatic forces. The flexible sensor can move with small air movements, addressing issues with existing sensors and expanding possibilities for applications.
Researchers at KAUST have developed a novel biosensor that can detect metabolites like lactate with high efficiency. This device combines an electron transporting polymer with lactate oxidase to realize efficient electron transfer, promoting electrical communication between the sensing electrode and enzyme.
Researchers at Georgia Institute of Technology found that sodium- and potassium-ion batteries can be more stable and have a longer life than previously thought. The study suggests that these batteries could be used in large-scale energy storage systems, such as smart grids, due to their potential for cost-effectiveness.
Researchers at UC San Diego developed a technique to engineer graphene electrodes with low impedance and transparency. This allows for simultaneous recording of neuronal activity and high-quality imaging of brain cell activity in transgenic mice. The technology brings graphene electrodes closer to being adapted into next-generation bra...
Researchers recorded neuronal activity in patients with epilepsy using implanted electrodes, revealing that frontal lobe neurons change before a new conscious experience emerges and that medial temporal lobe neurons change one second prior to perception. This study sheds light on the origin of consciousness.
Researchers demonstrate large-scale fabrication of transparent conductive electrode film based on nanopatterned silver, offering high-performance and long-lasting option for use with flexible screens. The silver-based films could also enable flexible solar cells and improve existing flexible displays.
Researchers at EPFL have developed ultra-sensitive sensors using elastic fibers filled with electrodes, capable of detecting pressure and strain. The fibers can be used in smart clothing, prostheses, and artificial nerves for robots, with potential applications including touch keyboards and compression detection.
Researchers at Ruhr-University Bochum found that bioelectrodes containing photosystem I are unstable in the long term due to formation of reactive oxygen species and hydrogen peroxide. This limits their potential for environmentally friendly energy conversion.
Researchers have discovered a way to produce highly conductive electrode materials for supercapacitors sustainably using nanocellulose derived from wood pulp. The new method yields mechanically stable and porous three-dimensional networks with high electrical conductivity.
The ETH Zurich researchers developed nanovalves that can control individual nanoparticles in liquids using electric forces. This technology enables sorting and manipulation of tiny particles such as metal, semiconductor, virus, liposomes, and antibodies.
Researchers at Tokyo Institute of Technology developed a 4.5-nm-long molecule that forms coherent resonant electron-tunneling devices, exhibiting thermal stability similar to traditional materials. The discovery paves the way for future molecular-scale electronic research and addresses limitations in conventional electronics.
A study on epilepsy patients has shown that repetitive transcranial magnetic stimulation (rTMS) can be used to predict which brain regions will be affected by the treatment. This research could lead to individualized stimulation protocols, improving treatment outcomes for conditions like depression.
Researchers at Linköping University have developed a lignin-based fuel cell that converts the chemical energy of forest fuels into electricity without emitting carbon dioxide. The use of conducting polymer PEDOT:PSS as both electrode and proton conductor enables efficient proton-coupled electron transfer reactions.
Scientists at the University of Tsukuba have created an electrode based on 'holey' graphene that efficiently catalyzes the hydrogen evolution reaction in acidic electrolyte, making it cheaper and more effective. The new system outperforms regular non-holey graphene electrodes in acid conditions.
Researchers have developed a control algorithm that regulates electrical current to provide steady sensation in prosthetic arms. The system reduces painful shocks and improves user experience, enabling users to feel touch and pressure, even with electrodes peeling off or sweat building up.
A fractal-shaped electrode design enhances charge delivery for smaller neural stimulation targets, potentially prolonging device lifespan and improving resolution. The new shape facilitates faster Faradaic charge transfer, resulting in more efficient energy use.
Researchers at Carnegie Mellon University created smart walls using conductive paint that can detect human touch, gestures, and appliance usage. The system operates in two modes: capacitive sensing and electromagnetic (EM) sensing, allowing for location tracking of devices and people.
Researchers deciphered the chemistry behind lithium fluoride's formation in SEI, discovering a new method to monitor hydrogen fluoride concentration. This monitoring capability is crucial for future basic science studies and commercial applications.
Researchers have developed thin, flexible polymer-based materials for microelectrode arrays that record brain activity more deeply and with greater specificity. These arrays have been shown to be less invasive and damaging to surrounding cells, allowing for longer recording periods.
Researchers at Caltech have successfully induced natural sensations in a paralyzed man by stimulating his somatosensory cortex with tiny arrays of electrodes. The study could enable people with prosthetic limbs to feel physical feedback from sensors.
Researchers at the University of Texas at Dallas have developed a high-powered, environmentally safe lithium-sulfur substitute that could drastically lengthen battery life. The new technology improves stability and power density, making lithium-sulfur batteries more commercially viable.
Researchers at TU Graz have developed a novel method for creating printed tattoo electrodes that can transmit electrical impulses from human to machine. The electrodes are thin, flexible, and conformable, allowing for accurate measurements over extended periods without restricting patient mobility or comfort.
Researchers detected tDCS-generated electric fields (EFs) deep in the brain using DBS electrodes in patients with Parkinson's disease. The study provided dose-dependent and montage-specific evidence that scalp-applied current penetrates the brain, challenging previous assumptions.
Scientists at PNNL have developed an electrolyte solution that increases the charge/discharge cycles of lithium-metal batteries by up to seven times. This breakthrough enables electric vehicles to drive more than two times longer between charges.
Researchers at MIT have developed a new approach to designing battery materials that could lead to improved ion mobility and reduced reactivity. By analyzing the lattice properties of solid materials, they found a correlation between vibrational frequency and conductivity, allowing for accurate predictions of material properties.
Scientists at TUM found that electrodes are wetted twice as fast in a vacuum than under normal pressure. The liquid spreads evenly from all four sides, reducing electrolyte absorption by ten percent.
Researchers have developed an advanced hydrogen-bromine flow battery that can store electricity from solar farms and discharge it overnight when needed. The battery, designed by the University of Kansas, has a high surface area and could be used in large-scale remote energy storage systems.
Neuroscientists at KU Leuven developed an EEG-based method to objectively and automatically assess speech understanding. The technique, which uses 64 electrodes, can measure brainwaves while a person listens to a sentence and determine whether they have understood it.
The proton battery uses a carbon electrode as a hydrogen store, coupled with a reversible fuel cell to produce electricity. It stores more energy per unit mass than commercially available lithium ion batteries and has the potential to power electric vehicles and medium-scale storage on electricity grids.
Researchers have developed high-density stretchable electrode grids for long-term stable neural recording, overcoming challenges in biocompatibility and mechanical properties. The breakthrough enables crucial applications in biomedical engineering, including diagnosing and treating neurological disorders such as epilepsy.
Scientists at University of Illinois Chicago and Lawrence Berkeley National Laboratory have developed a technique to pinpoint chemical reactions inside lithium-ion batteries. This allows them to understand how batteries operate and identify ways to optimize performance.
Scientists at Shinshu University develop a thin and dense connecting layer between electrodes using cubic crystal growth, improving lithium ion battery efficiency and addressing temperature issues.
Researchers designed a new electrode that mimics the structure of tree branches to boost supercapacitors' performance. The device stores more energy and delivers faster power compared to existing designs.
Researchers used machine learning to decode brain activity during a simple task of distinguishing between BA and DA syllables. The results show that the brain uses specific regions for mental associations related to the task, not just for processing information.
Researchers at UNIST have developed a highly stretchable rechargeable lithium-ion battery based on aqueous electrolytes, using a simple and cost-effective solution process. The breakthrough involves a bioinspired Jabuticaba-like hybrid carbon/polymer composite that retains its electrical conductivity under high strain rates.
Researchers at MIT have developed a new approach to rechargeable batteries using a metal-mesh membrane, which overcomes the limitations of previous ceramic membranes and enables cost-effective power storage for large-scale installations.
Researchers at MIT have developed a system that uses electric fields to manipulate droplets of chemical or biological solutions on a surface. This new approach enables parallel testing of thousands of reactions and could revolutionize the field of biological research.
Researchers at Brookhaven National Laboratory observed an unexpected phenomenon in lithium-ion batteries, where the concentration of lithium inside individual nanoparticles reverses. This discovery could help develop batteries that charge faster and last longer.
Researchers from UBC and UNC Chapel Hill discovered that halogens can increase conversion efficiency of dye-sensitized solar cells by 25%. The presence of halogens accelerates electron transfer, allowing for faster regeneration of the light-absorbing dye.
Researchers have developed a surface acoustic wave (SAW) device that can achieve frequencies six times higher than most current devices, thanks to the use of embedded interdigital transducers (IDTs). The device also boosts output power by 10 percent compared to conventional devices.
Researchers have developed a novel photovoltaic-powered electrolysis device that can operate as a stand-alone platform on open water, producing hydrogen fuel from sunlight and water. The device separates gases using buoyancy-driven product separation, resulting in high product purity without actively pumping the electrolyte.
Researchers have modified lithium-ion batteries to include slits along the electrodes, potentially mitigating battery failure during automobile accidents. The prototype improved energy density and reduced housing material costs, offering a safer alternative for electric vehicles.
Researchers discovered a hybrid electrolyte that combines aqueous and organic characteristics to increase the performance of vertical graphene nanosheets in supercapacitors. The hybrid electrolyte and potassium hydroxide activation improved nanostructure and charge storage capacity, resulting in fivefold improvements in capacitance.