Articles tagged with Electrodes
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Researchers in China have successfully grown ferroelectric thin films with symmetric oxide electrodes, stabilizing flux-closure domains and their periodic arrays. This finding disproves previous theories and opens up new possibilities for the evolution of these structures under external electric fields.
Researchers at the University of Oregon have made significant progress in developing fractal-based retinal implants that could potentially restore vision to people with macular degeneration. The implants use fractal geometry to stimulate retinal neurons, achieving a 90% increase in neuron stimulation while using less voltage.
Researchers identify strategies to enhance lithium storage in 2D nanomaterials, including hybridization, surface/edge functionalization, and structural optimization. These approaches aim to improve conductivity and accommodate volume expansion during charging/discharging cycles.
Researchers developed a method to observe local conductivity changes in memristors using conductive liquid electrolytes. The method reveals the formation of nanoscale spots responsible for conductivity changes, allowing for distinction between electrical and thermal contributions.
Researchers from KIT developed a novel material based on porphyrin to speed up rechargeable battery charging. The new material allows for high-performance energy storage and supercapacitors with exceptional properties.
Researchers at the University of Warsaw have developed a method to form colloidal chains by pulling out individual particles from a suspension using an electrode. The chains are held together by a thin layer of liquid, and their flexibility is influenced by the type of liquid used.
A team of engineers at the University of Washington has developed a process for manufacturing supercapacitor electrode materials that meet industrial and usage demands. They used carbon-rich materials with high surface area, creating an aerogel that can act as a crude electrode and doubling its capacitance.
Researchers have developed a hypoallergenic electronic sensor that can be worn on the skin for up to a week without causing inflammation or irritation. The device uses breathable nanoscale meshes and has been tested on 20 subjects, demonstrating its reliability as an electrode for continuous health monitoring.
Scientists discovered that smooth surfaces are key to preventing dendrites from forming in solid electrolyte lithium batteries, a breakthrough that could enable safer and more efficient battery technology. By eliminating the need for liquid electrolytes, researchers aim to double a battery's energy capacity.
A new DARPA project aims to create an implanted brain-interface device with one million channels to support brain function. The device, developed by Columbia University researchers, uses silicon electronics and wireless powering for non-invasive stimulation and recording from the sensory cortex.
Drexel University researchers develop new battery electrode designs using highly conductive MXene material, achieving tens of milliseconds charging time. The design enables ultrafast energy storage devices that can store more energy than conventional supercapacitors.
Scientists create a polyacrylamide hydrogel electrolyte that enables supercapacitors to be stretched up to 1000% in length and compressed by 50% in thickness without losing capacity. This flexibility makes the supercapacitor suitable for wearable electronics.
Researchers developed a new method to tightly fix powder catalysts on electrode surfaces, addressing the challenge of high physical stress induced by gas evolving reactions. The technique involves applying an organic polymer that transforms into carbon at high temperatures, providing a stable and conductive surface for catalysis.
Researchers at Cornell University have developed a novel electrode material that uses bacteria to clean pollutants from wastewater. The bacteria grow on the surface of the nanofibers, producing electricity and breaking down contaminants, making it a promising technology for improving wastewater treatment.
Researchers at the University of Washington have developed a new deep brain stimulation system that uses electrodes on top of the brain to sense movement and deliver targeted stimulation only when needed. This approach has shown promising results in reducing tremor symptoms, extending battery life, and improving patient performance.
Researchers found that wire-free electrodes and the round window surgical approach improved long-term hearing preservation in cochlear implant patients. The study's lead investigator notes that these findings have major implications for doctors and patients seeking to restore their hearing.
Researchers have discovered that correct connections between brain regions are essential for optimal relief of Parkinson's Disease symptoms using deep brain stimulation. By analyzing brain connectivity, they were able to predict the best possible outcome and optimize electrode placement.
The study found that installing a thin gold film can suppress spin wave (SW) noise and stabilize its propagation characteristics. The researchers discovered that the position of the gold film affects the generation of noise, allowing for a smoothened transmission and reduced frequency variations.
A new reconstruction method for Electrical Impedance Tomography (EIT) is proposed to estimate abdominal fat, improving reproducibility and spatial resolution. The technique has shown promising results in detecting subcutaneous fat thickness, with further research needed to assess visceral fat volume.
A recent discovery by Stanford University scientists could lead to a new, more sustainable way to make ethanol without corn or other crops. The technology uses three basic components: water, carbon dioxide and electricity delivered through a copper catalyst.
Researchers have developed an inexpensive printed sensor that can track millimeter-scale changes in tire tread depth with high accuracy. The technology has the potential to increase safety, improve vehicle performance, and reduce fuel consumption by detecting sub-millimeter resolution of tire wear.
Scientists at the University of Basel have developed a procedure that allows binding single gold atoms to polymer chains on silicone membranes. This enables the formation of ultra-thin conductive layers on silicone rubber, opening up new possibilities for medical implants.
Researchers have developed a novel method to create stable and low-cost electrodes from discarded stainless steel mesh, ideal for potassium-ion batteries. The new electrode design uses a waste material to store potassium ions, overcoming the limitations of sodium ion batteries.
Researchers have developed a noninvasive method for deep brain stimulation using electrodes placed on the scalp, which could make the treatment less risky, less expensive, and more accessible. The approach has shown promising results in treating Parkinson's disease and other conditions, with no harmful effects detected.
A new phenomenon in spintronics was discovered by altering capacitance by manipulating spins in the opposite way from normal magnetocapacitance. This inverse effect allows for more parameter space to design devices, potentially useful in magnetic sensors for computer hard drives and random access memory chips.
Researchers have developed a new device to map the brain during surgery, providing higher resolution neural readings than existing tools. The device enables doctors to perform safer, more precise brain surgeries by distinguishing between healthy and diseased tissues.
Researchers at UMass Amherst create a breathable, pliable, metal-free electrode coating that can be applied to off-the-shelf clothing without compromising comfort. The coating generates small electric currents through triboelectric charging and has been tested on various fabrics with promising results.
Researchers have developed a new method for observing the movement and rearrangement of ions in ionic liquids at electrode interfaces. The technique, using photoemission electron microscopy (PEEM), allows scientists to study the structural changes and ion mobility in real-time.
Researchers at MIT have developed a new brain implant design that uses thin fibers to deliver drugs or electrical stimulation with less damage to the brain. The design reduces scarring, potentially allowing devices to remain in the brain for much longer.
Researchers created long chains of micron-sized metal spheres using an electric field, which then maintained their structure without the need for further application. The discovery could lead to new electronic devices and methods for fabricating conductive paths on different substrates.
Researchers have developed a new battery system using electrodes with porous graphene scaffolding, showing substantial improvement in energy storage. By fine-tuning nanopore size, they achieved high mass loading and power capability while maintaining charge transport.
A new method developed at MIT can selectively remove even tiny amounts of contamination from water using an electrochemical process. The approach addresses key limitations of conventional methods and is highly selective, making it a promising solution for environmental remediation and water purification systems.
Researchers at Osaka University investigated the geometry of single molecule-electrode contacts on thermoelectric behavior. They found that the largest thermoelectric effect was observed for structures containing a stretched thiol linkage, which shifts the energy level to a more favorable position.
Intento's device enables stroke patients to self-administer electrical stimulation, improving mobility and performing basic tasks. 70% of patients showed significant improvement in motor functions compared to conventional therapy.
Researchers have discovered a new conducting additive, Super P carbon black (SPCB), that exhibits high capacity and cycling stability for reversible lithium and sodium ion storage. SPCB shows a higher capacity for lithium ion storage than sodium ion storage due to its reaction mechanism.
Researchers developed a novel fabrication method combining 3D printing and electroplating to produce complex metallic structures for molecular beam-splitting. This approach enables the creation of high-voltage electrodes with impeccable surface properties and precision alignment, overcoming previous fabrication problems.
Researchers developed flexible graphene and gold probes that can detect weak brain signals clearly, improving neural disease treatment and brain-machine interface capabilities. The new probes retain effective surface area despite shrinking size, paving the way for more convenient wireless versions.
Researchers have designed a porous material inspired by leaf veins that improves rechargeable battery performance and gas sensing. The material enhances the charge and discharge process, reducing stresses and increasing battery life by up to 25 times.
A research team from the University of Freiburg has developed a new method to create microprobes that can grow into neural tissue without causing inflammation. These probes can deliver strong signals even after twelve weeks, opening up new possibilities for diagnoses and treatments for conditions like Parkinson's.
Researchers at Duke University have developed a fully-printed digital memory device using an aerosol jet printer and nanoparticle inks. The device stores information in states of resistance, allowing for flexible electronics on bendable materials, and has a write speed rivaling that of flash drives.
Researchers from RMIT University have developed a groundbreaking graphene-based electrode prototype that can increase the capacity of existing integrable storage technologies by 3000%. This breakthrough design is inspired by the efficient vein structure of fern leaves, offering a solution to the storage challenge holding solar energy b...
A novel neuro-prosthesis has restored brain-controlled reaching and grasping in a person with complete paralysis, enabling them to feed themselves and drink. The technology decodes brain signals and transmits them to sensors in the arm, allowing users to regain movement and independence.
Swedish researchers used nanoelectrochemical measurements to study zinc's influence on neurotransmitter release. They found that zinc reduces the number of stored neurotransmitters but maintains the amount released upon stimulation.
Scientists at Ecole Polytechnique Fédérale de Lausanne are developing intelligent neuroprosthetics that can decode brain signals and stimulate spinal cord muscles to facilitate walking movements. Clinical trials are currently underway to test the feasibility of these devices on patients with partial paralysis.
Researchers successfully demonstrated a reliable and reproducible single molecule switch, enabling electric current to flow between electrodes through the molecule or not. The breakthrough could lead to advancements in molecular electronics.
Researchers have developed a family of resistive random access memories using multilayer hexagonal boron nitride as dielectric, showing promising retention times and low cycle-to-cycle variability. The devices exhibit coexistence of forming free bipolar and threshold-type resistive switching.
The new device, an array of tiny carbon electrodes, measures dopamine levels at millisecond timescales and can be used to monitor therapies aimed at boosting dopamine levels. The researchers found that dopamine levels vary greatly across the striatum, with implications for understanding learning and brain disorders.
A small study suggests deep brain stimulation is safe for patients with chronic anorexia and may help improve mood, anxiety, and wellbeing while increasing weight. The treatment altered brain circuits that drive anorexia symptoms, leading to improved mental health and quality of life.
Researchers at San Diego State University have developed glassy carbon electrodes that transmit more robust signals to restore motion in people with damaged spinal cords. This innovation improves durability and signal quality, enabling better motor function restoration.
Engineers at the University of Texas at Austin created ultra-flexible brain probes that achieve more reliable long-term neural recording without causing scar formation. The probes' mechanical compliances mimic brain tissue and enable reliable recording of individual neurons for extended periods.
Researchers identified a neural pathway in humans that explains how the brain processes feelings of fear and anxiety. By analyzing neuronal activity while watching horror movie scenes, they found that the amygdala and hippocampus directly exchange signals to process fearful stimuli.
A team at MIT has probed the mechanical properties of a sulfide-based solid electrolyte material, determining its potential for use in all-solid-state batteries. The research found that the material exhibits a combination of properties similar to silly putty or salt water taffy, showing promise in energy density and safety.
Researchers developed a wearable sensor to monitor skin hydration in real-time, tracking health risks and improving safety for military personnel, athletes, and older adults. The low-cost sensor uses conductive silver nanowires to detect changes in skin electric properties based on hydration levels.
Researchers from Lomonosov Moscow State University have found that electrochemical oxygen reduction in lithium-air batteries is plagued by side reactions, limiting recharge cycles. The team identified defect sites in carbon electrodes as a key factor in the reaction's progression.
Physicist Igor Kaganovich and collaborators discovered the physics driving plasma etching, a technique powering electronic devices. The research found that electrically charged gas plasma enhances etching efficiency by creating strong plasma waves.
Researchers have developed a flexible transistor that can be stretched to twice its length without significant changes in conductivity. The breakthrough uses a semiconducting polymer confined within an elastic matrix, demonstrating effective transconductivity even under heavy stretching.
A team of researchers has fabricated copper-based nanostructures with high specific and areal capacitances in a short time frame, making them suitable for energy devices such as supercapacitors and lithium-ion batteries. The study's findings suggest that these structures have great potential for energy applications.
Researchers at Michigan Tech created a new way to synthesize sodium-embedded carbon nanowalls, which have two orders of magnitude higher conductivity than three-dimensional graphene. The material also retains high capacity after 5,000 charge/discharge cycles, making it ideal for supercapacitors and energy devices.
Researchers at UC Berkeley observed the brain's re-tuning process when listening to previously unintelligible speech after priming. The study confirms speculation that neurons in the auditory cortex continually tune themselves to pull meaning out of a noisy environment, enabling individuals to quickly comprehend garbled speech.
A new study has developed an electrical immunosensor that can detect heart attacks within a minute using human serum. The system works by measuring the level of cardiac troponin I, a protein excreted by the heart muscle after a heart attack. This novel immunosensor holds considerable potential for use in biomedical diagnosis.