Articles tagged with Electrodes
Researchers at Oxford University found that transcranial direct current stimulation (tDCS) significantly improved motor skills in stroke patients. The study showed that tDCS reinforced training, leading to greater recovery and increased brain activity in relevant areas.
Researchers at Oak Ridge National Laboratory have developed a technique to track ion movement in the MXene material, revealing important insights into its energy storage properties. The study's findings suggest that ion insertion and diffusion play a crucial role in the material's exceptional performance.
Researchers at Ruhr-University Bochum developed a new dry electrode for measuring ion concentrations, overcoming size and cost constraints. The system uses solid electrode material with storage capacity for positively charged ions, providing stable results over a lengthy period.
Researchers have developed self-propelled nanomotors that can autonomously seek out and repair microscopic cracks in electronic systems, restoring electrical conductivity. These nanomotors, powered by hydrogen peroxide, mimic the body's immune system to promote healing in complex electronic components.
Researchers have successfully increased water electrolysis efficiency by applying a copper layer to platinum electrodes. This innovation boosts the reaction's activity and extends electrode lifespan. The breakthrough could lead to large-scale implementation of climate-friendly energy conversion using surplus electricity.
Researchers from Johns Hopkins Medicine have successfully controlled a prosthetic arm to move individual fingers using brain mapping technology. The study, published in the Journal of Neural Engineering, represents a potential advance in technologies to restore refined hand function to those who have lost arms to injury or disease.
Researchers from Karlsruhe Institute of Technology (KIT) have developed the world's smallest lattice structure made of glassy carbon, with struts and braces less than 200 nm in diameter. The structure boasts higher specific strength than most solids and has potential applications as electrodes, filters, or optical components.
Researchers create soft gripper that uses electroadhesion to pick up fragile objects of arbitrary shape and stiffness. The new technology mimics muscle function, gripping onto objects with electrostatic forces.
Researchers have successfully interfaced graphene with neurons, maintaining the integrity of these vital cells. The work may lead to the development of graphene-based electrodes that can safely be implanted in the brain, offering promise for restoring sensory functions in amputee or paralyzed patients.
Researchers used electrodes implanted in the temporal lobes of awake patients to decode brain signals and predict what object patients were seeing with over 95% accuracy. The study's findings have significant implications for understanding human perception and could lead to new treatments for paralysis and stroke patients.
Researcher Zhifeng Ren has received a $561,275 DOE grant to continue his work on flexible transparent electrodes and thermoelectric materials. His efforts aim to enhance existing material properties and discover new materials with high power factor.
Scientists at ETH Zurich have developed a new type of transparent electrode using 3D print technology, featuring gold or silver nanowalls on a glass surface. This innovation offers higher conductivity and transparency than traditional indium tin oxide electrodes, leading to improved screen quality and touch responsiveness in smartphones.
Researchers created a new way to coat solid electrolyte around electrodes, solving problems of gasification and poor permeability. The breakthrough enables high-ion conductivity and air stability in all-solid-state lithium batteries.
Researchers at Case Western Reserve University have created flexible, wire-shaped microsupercapacitors that can be woven into garments to power wearable electronics. The capacitors increase energy density and capacitance by coating a titanium wire with aligned carbon nanotubes, allowing for more efficient charging and discharging.
Researchers discovered a bacterium that can use direct uptake of electrons from an electrode to fuel its metabolic pathway. This finding suggests the existence of electro-ecosystems, where microorganisms sustain life by electrical current, not relying on inorganic substances or light.
Hitachi and Tohoku University's Advanced Institute for Materials Research have developed a basic technology to reduce internal resistance in all-solid-state lithium-ion batteries, allowing them to operate at temperatures up to 150°C. This breakthrough enables the thermally durable battery to be used in various applications, such as lar...
Researchers at the University of Chicago and University of Wisconsin developed a new method to split water into hydrogen and oxygen efficiently using solar energy. By incorporating nitrogen into an electrode made of bismuth vanadate, they increased photon absorption and electron transport, leading to higher fuel efficiency.
Researchers have developed a new lithium-air battery that utilizes unique materials to overcome common issues with efficiency and water tolerance. The battery's design features a lithium metal negative electrode, non-aqueous electrolyte, and positive electrode that work together to improve overall performance.
Scientists have developed a working laboratory demonstrator of a lithium-oxygen battery with very high energy density, exceeding 90% efficiency, and over 2000 recharges. The breakthrough relies on a highly porous graphene electrode and additives altering chemical reactions for improved stability and efficiency.
Researchers at the University of Delaware have successfully developed a new method to increase the energy storage ability of dielectric capacitors using nanotechnology. The innovation achieves an energy density of about two watt hours per kilogram, significantly higher than existing structures.
Researchers have identified silver corrosion as a major issue in perovskite solar cells, which absorb light across almost all visible wavelengths and exceed 20% power conversion efficiency. A solution-based method using silver electrodes can reduce costs but may lead to short lifetimes.
Researchers at Lund University have developed implantable electrodes that capture signals from single neurons without causing brain tissue damage. The electrodes, called 3-D electrodes, are extremely soft and flexible, enabling stable recordings over long periods.
Researchers at INRS have developed a micro-supercapacitor with unprecedented energy density, exceeding existing electrochemical capacitors by 1,000 times. This innovation combines the strengths of supercapacitors and lithium-ion batteries, making it suitable for various applications.
Researchers at Lund University have developed a new type of brain implant that uses nanowires to stimulate or capture signals from different areas of the brain. This breakthrough could lead to improved treatments for Parkinson's disease, depression, autism, and paralysis.
Researchers at ORNL have created flexible polymer carbon composite films as electrodes for supercapacitors, achieving high power and energy density. The technology can consume up to 50 tons of scrap tires daily, providing relief from the expected 1.5 billion discarded tires by 2035.
Researchers at PolyU have created high-efficiency, low-cost semitransparent perovskite solar cells with graphene electrodes for BIPV applications. The PCEs reach up to 12% and show potential cost savings of over 50% compared to existing silicon-based solar panels.
Researchers create a one-step process to make seamless carbon-based nanomaterials that possess superior thermal, electrical and mechanical properties in three dimensions. The material enables high efficiency batteries, supercapacitors, and solar cells, and has potential for applications such as energy storage, sensors, and wearable ele...
Researchers at Pohang University of Science and Technology have made significant advancements in organic light-emitting diodes (OLEDs) for solid-state lighting. The team developed flexible electrodes using graphene, conducting polymers, and silver nanowires, which demonstrated good electrical, optical, and mechanical performance.
Researchers have developed a brain-friendly interface using an extracellular matrix environment, which can adapt to the mechanical properties of brain tissue and acquire neural recordings. This technology has the potential to revolutionize the treatment of limb loss and spinal cord injuries.
Researchers have developed a new, cost-effective alternative to conventional electrodes using encapsulated silver nanowires. The electrodes are made by applying a suspension of silver nanowires onto a substrate and then encasing them in AZO crystals.
Researchers developed a novel diffraction spectroscopy technique to probe chemical processes at the electrode/electrolyte interface, offering enhanced sensitivity and specificity. The method uses graphene gratings to detect molecular vibrations with sub-monolayer sensitivity.
Researchers at OIST developed a method to recreate connections between neurons from two different brain areas in a dish, allowing for the study of brain function and potential treatments for neurological disorders. The breakthrough used neurons from embryos of mice and created a working corticostriatal network.
Researchers discovered a way to prevent dendrite formation in lithium metal batteries by adding chemicals to the electrolyte, improving safety and performance. The new approach could lead to more efficient and longer-lasting batteries with potential applications in electric vehicles and energy storage.
Researchers at TUM have successfully improved the electrical properties of printed films by optimizing the printing process, resulting in custom organic electronics. The team used X-ray radiation to study the curing process and achieved high time resolution, leading to significant improvements in stability and conductivity.
Researchers at Duke University Medical Center have created a high-resolution map of the human brain stem using MRI technology, providing unprecedented detail of deep brain pathways. This new model can guide surgeons in implanting electrodes more accurately, potentially eliminating trial-and-error methods and making surgery safer.
The new material has exceptional energy-storage capacity, enabling unprecedented performance in lithium-sulfur batteries and supercapacitors. Designer carbon can be fine-tuned for various applications by adjusting the type of polymers and organic linkers used during fabrication.
Researchers at the University of Washington have made the most precise measurements yet of atom-surface interactions crucial for improving lithium batteries and air filters. By studying gas atoms' behavior on a carbon nanotube surface, they found a measurable change in electrical resistance occurs when an atom sticks to the surface.
Researchers have identified the mechanism by which methanogens obtain electrons from solid surfaces, paving the way for more efficient microbial factories that produce methane gas. The discovery also sheds light on microbially influenced corrosion, a significant global problem with estimated annual economic losses of $1 billion.
Researchers created high-performance 3D lithium-ion microbatteries using 3D holographic lithography and 2D photolithography. The battery has exceptional performance, scalability, and can be integrated with microelectronic devices.
Researchers at Georgia Tech have developed a microfabricated ion trap architecture that increases qubit density and brings us closer to building a quantum computer. The new design uses ball grid array techniques to fit more electrodes onto the chip, paving the way for increased scalability.
A new chest strap ECG monitor has been developed using wettable electrodes that are kept moist by an artificial sweating process. The device can now be used for long-term heart rate monitoring, addressing previous limitations of gel electrodes.
Scientists at the University of Illinois Chicago have made a significant breakthrough in battery technology by replacing lithium ions with magnesium ions, which can carry twice the positive charge. This development could lead to the creation of high-voltage, high-energy batteries that can outperform existing lithium-ion batteries.
Researchers at MIT Media Lab create a miniature wireless track pad using capacitive sensing, allowing users to control devices with their thumbs. The technology has potential applications in various scenarios, including cooking, texting, and subtle communication.
Researchers have developed a new type of battery electrode made from molybdenum disulfide sheets wrapped in silicon carbonitride, showing improved stability and high lithium capacity. The discovery could lead to more efficient rechargeable batteries for smartphones and other devices.
A KAIST research team has developed a hyper-stretchable elastic-composite energy harvester called a nanogenerator. The device can harvest mechanical energy to produce high power output with large elasticity and excellent durability.
A new study published in the Journal of Neuroscience found that visual objects are represented by a distributed network in the human brain. Researchers used single-neuron activity recordings from epilepsy patients to test the idea of
A team of researchers from the University of Houston has developed a non-invasive brain-machine interface that allows an amputee to control a prosthetic hand with high accuracy. The technology, which uses electroencephalogram (EEG) signals to capture brain activity, enables individuals to grasp objects with ease and precision.
The carbon nanotube fibers have proven superior to metal electrodes for deep brain stimulation and reading signals from a neuronal network. They offer promise for treating patients with neurological disorders while monitoring the real-time response of neural circuits.
UNSW Australia scientists have developed a highly efficient oxygen-producing electrode for splitting water that has the potential to be scaled up for industrial production of clean energy fuel, hydrogen. The new technology is based on an inexpensive, specially coated foam material that lets the bubbles of oxygen escape quickly.
The new electrode boasts nearly 1415 farad per gram capacitance, high current density, low resistance, and high power density. It also exhibits long-term cycling stability, retaining up to 95% of initial capacitance after 3000 cycles.
Researchers at Lawrence Livermore National Laboratory have identified changes in the structure and bonding of graphitic carbon electrodes that may improve the capacity and efficiency of electrical energy storage systems. The new X-ray adsorption spectroscopy capability provided key information on how the structure and bonding evolve du...
Researchers developed bio-inks that react with chemicals, allowing the creation of reusable glucose sensors on skin and leaves. The pens can also detect pollutants and hazardous materials, enabling potential applications in healthcare, environmental monitoring, and security. Future steps include connecting sensors wirelessly to monitor...
Researchers have developed implantable devices that can record muscle activity and provide more natural prosthesis control. The technologies aim to improve the reliability of prosthetic limbs and enable users to experience sensations in their residual limbs, enhancing overall prosthetic performance.
A team of researchers at the University of Utah has received $1.4 million to further develop an implantable neural interface that allows amputees to control a prosthetic hand with their thoughts and feel sensations of touch and movement.
Researchers at the University of Michigan have developed a new battery technology using a Kevlar membrane to prevent lithium-ion fires and enhance safety. The membrane, made with nanofibers extracted from Kevlar, stifles the growth of metal tendrils that can become unwanted pathways for electrical current.
A new self-powered non-mechanical intelligent keyboard generates electricity from user fingertips, capturing unique typing styles for enhanced computer security. This innovative device uses individual keystroke patterns to identify users and prevent unauthorized access.
Researchers at North Carolina State University have developed a new, wearable sensor that can accurately monitor electrophysiological signals like electrocardiography (EKG) or electromyography (EMG) for long periods. The sensor uses silver nanowires and is more accurate than existing sensors, especially when a patient is moving.
Researchers found that nanowires shorter than 2 micrometres cause no harm to the brain tissue, while longer ones lead to inflammation and neurotoxic effects. The study suggests developing electrodes with smaller and more flexible nanowire coatings for safer neural implants.
A woman with quadriplegia used her thoughts to control a prosthetic arm and hand, achieving 10-degree brain control and grasping various objects. The study's findings indicate that highly coordinated movement can be restored to people with paralyzed arms and hands.
Researchers discovered a rubber-like coating that improves durability of high-capacity silicon electrodes, leading to potential ten-fold increase in battery capacity. The coating softens the particles, allowing them to expand and contract with lithium without fracturing.