Articles tagged with Electrodes
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Scientists at the University of Texas at Austin and UCLA have created an e-tattoo that can measure brain activity using electroencephalography (EEG). The new method uses a camera to map the individual head's shape digitally, allowing for more precise sensor placement. This innovation could transform brain-computer interfaces, making th...
Scientists have developed a liquid ink that can be printed onto a patient's scalp to measure brain activity, offering an alternative to traditional EEG tests. The e-tattoo technology is quick, comfortable, and stable, with potential applications in non-invasive brain-computer interface devices.
Researchers from Delft University of Technology have developed a new 3D electrode design for the Battolyser, enabling it to store twice the amount of electricity and charge four times faster. This innovative design reduces space and costs while producing green hydrogen comparable to existing electrolysers.
Researchers developed MoPEDE, a method combining genetic data and brain activity to pinpoint epileptic seizure origins. This approach offers deeper insights into epilepsy mechanisms, potentially leading to personalized treatments.
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 developed a robot that identifies plants by measuring leaf properties with an electrode, achieving an average accuracy of 97.7% for ten different species. The device may revolutionize crop management and early disease detection, but its limitations need to be addressed.
Researchers created a new electrode design that increases the efficiency of converting CO2 into ethylene, a valuable chemical product. The electrochemical system can now be scaled up for industrial applications without significant energy or cost losses.
The new biosensor detects symmetric dimethylarginine in urine, providing a more accurate indicator of kidney health than creatinine. It can identify mild kidney impairment and offers a reliable alternative to blood tests, enabling timely interventions and potential long-term outcomes.
A team of scientists leveraged machine learning to find promising compositions for sodium-ion batteries, achieving exceptional energy density. The study trained a model on a database of 100 samples to predict the optimal ratio of elements needed to balance properties like operating voltage and capacity retention.
A new self-cleaning electrode has been developed to efficiently synthesize alkaline-earth metal peroxides with high selectivity and stability. The electrode reduces surface adhesion of the product, facilitating rapid detachment and overcoming challenges in the current primary synthesis process.
Combining visible light with electrochemistry improves CO2 conversion rates and selectivity, enabling the production of valuable products such as carbon monoxide and hydrogen. The study's findings have significant implications for catalysis research and industrial applications.
Scientists have developed novel magnetic nanodiscs that can remotely stimulate parts of the brain, potentially treating neurological and psychiatric conditions. The devices were injected into specific brain regions in mice and triggered by a weak electromagnet, demonstrating precise control over neural activity.
A new study of bubbles on electrode surfaces could help improve the efficiency of electrochemical processes by understanding how blocking effects work. The findings show that only a smaller area of direct contact is blocked from its electrochemical activity, not the entire surface shadowed by each bubble.
Veterinary scientists at Université de Montréal have created a way to scan the brains of cats while they're awake by concealing electrodes in crocheted wool caps. This new technique uses electroencephalograms (EEGs) and can help alleviate chronic pain in cats.
Researchers at UMass demonstrated the effectiveness of homemade play putty as an interface to measure electricity or bioelectrical potentials from a human body. The material effectively captured various electrophysiology measurements, including EEG for brain activity and ECG for heart recordings.
Scientists at Shanghai Jiao Tong University created a novel glucose sensing system using heterogeneous CuxO nano skeletons from electronic waste. The method employed laser-induced transfer techniques to fabricate electrodes with high sensitivity and stability, achieving detection limits of 0.34 μM.
Researchers developed interpenetrated electrode structures to enhance ion diffusion kinetics in electrochemical energy storage devices. The design reduced ion concentration gradients and increased surface area, leading to improved performance at low temperatures.
Researchers from Tokyo Metropolitan University developed a new electrochemical cell that converts bicarbonate solution into formate ions with high selectivity and efficiency. The cell boasts unrivalled performances rivaling energy-hungry gas-fed methods, promising to have a significant impact on climate change technology.
Researchers at Chalmers University of Technology have created a world-leading structural battery that can halve the weight of laptops and make mobile phones as thin as credit cards. The battery has increased its stiffness, allowing it to be used in vehicles, increasing their driving range by up to 70 percent on a single charge.
Researchers developed Transparent Pressure-Calibratable Interference Electrotactile Actuator (TPIEA) technology to provide consistent virtual haptic experiences. The TPIEA uses platinum nanoparticles to reduce impedance and achieve high transmittance, allowing for precise and varied tactile sensations.
Researchers from Zhejiang University have developed a hybrid laser direct writing technique that enables the creation of functional copper interconnects and carbon-based sensors within a single integrated system. The process allows for real-time temperature monitoring over extended periods, ensuring optimal performance and reliability.
Researchers at ETH Zurich have developed ultra-flexible tentacle electrodes that can precisely record brain activity over extended periods, enabling detailed analysis of neural activity. The technology has the potential to diagnose and treat neurological disorders such as epilepsy, depression, and schizophrenia.
A new type of gel developed by MLU chemists improves the safety and service life of lithium-ion batteries. Initial lab studies show that it also enhances battery performance, remaining stable at over five volts.
Researchers have developed a cost-effective and easily reproducible point-of-care testing device that can accurately measure cortisol levels in the blood. The device uses iridium oxide nanoparticles to improve stability, sensitivity, and selectivity, allowing for commercial use.
The new battery can capture oxygen from air and use it to oxidize zinc, creating a current of up to 1 volt. It powers an actuator, memristor, clock circuit, and sensors, making it ideal for robotics and medical applications.
The baroreceptor-inspired microneedle skin patch delivers precise and controlled drug release in response to finger touching, significantly enhancing the precision and effectiveness of treatment. Experiments using Cy3 dye and insulin as model drugs demonstrated improved delivery efficacy compared to passive methods.
Researchers developed an inexpensive, water-powered electric bandage that accelerates wound healing in chronic wounds. The bandage produces an electric field that promotes healing and reduces inflammation, with animals treated with the bandage showing a 30% faster rate of wound closure.
A new study from the University of Washington suggests that cortical implants like Blindsight, developed by Neuralink, will not provide high-resolution vision. Instead, researchers found that a single electrode stimulates only one neuron, and image sharpness is determined by thousands of neurons in the brain.
Researchers have successfully transformed existing optoelectronic devices, including LEDs, into spintronics devices by injecting spin-aligned electrons without ferromagnets or magnetic fields. The breakthrough uses a chiral spin filter made from hybrid organic-inorganic halide perovskite material, overcoming a major barrier to commerci...
Researchers have discovered aluminum scandium nitride (AlScN) films that remain stable and maintain their ferroelectric properties at temperatures up to 600°C, making them promising candidates for next-generation ferroelectric memory devices. The films exhibit a high remnant polarization value and only a slight increase in coercive fie...
Researchers at Gwangju Institute of Science and Technology developed a novel nitrogen-doped mesoporous carbon-coated thick GF electrode to suppress the crossover phenomenon in flowless zinc-bromine batteries. The new electrodes effectively prevented self-discharge, improving battery performance and lifespan.
Chong Xie and his team at Rice University have won a $2.9 million grant from the National Institutes of Health to develop an implantable neural electrode system for high-resolution, long-term neural recording and stimulation. The project aims to improve the resolution of existing devices by increasing the density of neurons sampled.
Scientists develop fully solid, stretchy battery with 5000% expansion capacity, outperforming traditional liquid electrolyte designs. The new design boasts higher average charge capacity and improved stability over 67 cycles.
A breakthrough in brain-computer interfaces allows a patient to communicate using only the power of thought. The study, led by Dr. Ariel Tankus, enables individuals with paralysis to signal 'yes' and 'no' through electrical signals in their brain.
Researchers at ETH Zurich have developed a new method to reduce fluorine in lithium metal batteries, increasing their stability and efficiency. The new design requires only 0.1% by weight of fluorine, reducing the environmental footprint of these high-energy batteries.
Researchers at Tokyo Institute of Technology developed a flexible and durable bioelectrode material composed of single-wall carbon nanotubes on a stretchable poly(styrene-b-butadiene-b-styrene) nanosheet. The material showed impressive flexibility, high water vapor permeability and resilience for extended use.
Researchers at the University of California - San Diego developed a soft, stretchy electrode that can simulate pressure or vibration sensations using electrical signals. The device overcomes existing pain-inducing issues with rigid metal electrodes by conforming to the skin, providing localized stimulation.
Researchers developed a unique electrochemical ultrasonic force microscopy (EC-UFM) technique to observe sodium-ion battery interfaces during operation. The new method guides passivating layer formation, preserving charge carrier transport and enhancing battery performance.
Researchers have developed a new method in spectromicroscopy to investigate chemical species adsorbed on MXene surfaces and intercalated within the material. This technique, Scanning X-ray microscopy (SXM), enables high chemical sensitivity and has provided detailed insights into the chemical composition and structure of MXenes.
Researchers from Pohang University of Science & Technology have developed a high-energy, high-efficiency all-solid-state sodium-air battery that can reversibly utilize sodium and air without additional equipment. The breakthrough overcomes the challenge of carbonate formation, increasing energy density and reducing voltage gap.
The researchers created a chemosensor that detects lactic acid levels in saliva without the need for an electrical power source, opening up possibilities for easy use in remote locations. The sensor uses graphene foam technology to measure changes in quantum capacitance when lactate binds, allowing for lower-cost and more reliable trac...
A new soft multi-electrode system for electroretinography has been developed to overcome the limitations of traditional devices. The system uses a commercially available soft disposable contact lens with gold mesh electrodes, allowing for simultaneous measurement of electrical potentials from different regions of the retina. This innov...
Researchers discovered that adding water-resistant materials to an electrode can dramatically speed up chemical reactions in water, known as 'fouling'. This process can increase reaction rates up to six times faster than traditional methods. By leveraging this method, the chemical industry may be able to reduce its reliance on fossil f...
Researchers created an ultra-small vision implant with single-neuron sized electrodes, allowing for thousands of 'pixels' to be stimulated simultaneously. The implant's unique combination of flexible materials ensures long-term functionality and stability.
Researchers at DGIST have developed three-dimensional retinal electrodes with a convex braille shape, which can stimulate remaining normal nerve cells in the retina. This technology aims to partially restore vision to patients with blindness by minimizing distance to cells and reducing current required for stimulation.
Researchers from Pohang University of Science & Technology have fabricated a small-scale energy storage device that can stretch, twist, fold, and wrinkle. The device features fine patterning of liquid metal electrodes using laser ablation, allowing it to maintain its energy storage performance under repeated mechanical deformations.
Researchers developed a thermoelectric device that converts heat into electricity at near room temperature, with an instantaneous power density of 3.7 mW/m² K² and a Carnot relative efficiency of 0.12%. The device has applications in powering wearable electronics, solar panels, and building walls.
Researchers at University of Cambridge found that disordered carbon electrodes in supercapacitors store more energy than ordered ones. The study used nuclear magnetic resonance spectroscopy to analyze electrode materials and found a correlation between disorder and energy capacity.
A team of researchers has successfully integrated a metasurface with photonic integrated circuits, enabling fast and tunable control over light manipulation. The device can shape any wavefront in reconfigurable arbitrary polarization states at speeds of up to 1.4 gigahertz.
Researchers developed a novel hydrogen injection method using palladium to address contact issues of buried oxide thin film transistors. This method reduces contact resistance by two orders of magnitude and increases charge carrier mobility, enabling the application of amorphous oxide semiconductors in next-generation storage devices.
Research by a team at Pohang University of Science & Technology found that impurities in lithium raw material can enhance process efficiency and prolong battery lifespan, reducing costs and emissions by up to 19.4% and 9.0%, respectively.
Researchers at DGIST have created highly durable brain electrodes made of soft and elastic materials, sticking well to the curved brain surface. These electrodes can maintain stable performance over long-term use, enabling various applications in brain–machine interfaces and electronic medical devices.
Researchers have developed an implantable battery that runs on the body's own oxygen, providing stable power and compatibility with biological systems. The device shows promise for powering medical devices, monitoring wound healing, and even starving cancer cells.
Researchers at Doshisha University have developed a new method to electrochemically synthesize acetylene from carbon dioxide and water, using high-temperature molten salts and metal carbides. This approach offers advantages over conventional synthesis pathways, including the direct use of CO2 as feedstock and reusable electrodes.
Researchers developed a simple, cost-effective method to modify separator membranes in lithium metal batteries, suppressing dendrite formation and improving battery longevity. The study aims to scale up this approach for industrial usage and investigate challenges at high current densities.
Researchers at Chiba University have discovered that adding caffeine to certain platinum electrodes can increase the activity of the oxygen reduction reaction. This discovery has the potential to reduce platinum requirements in fuel cells, making them more affordable and efficient.
Researchers have discovered a way to stick hard and soft materials together using electricity, forming chemical bonds that can be easily reversed. This electroadhesion effect could enable the creation of biohybrid robots and improve biomedical implants.
A new strategy for direct electrolysis of dilute CO2 has been proposed, using a molecular enhancement method to improve performance. The approach involves modifying CoPc electrodes with poly(4-vinylpyridine) to create a reaction microenvironment that effectively captures and converts CO2 from flue gas.
A team of researchers used deep brain stimulation to localize disrupted neural pathways in patients with Parkinson's disease, dystonia, OCD, and Tourette's syndrome. The study identified specific brain circuits associated with each disorder, revealing overlapping malfunctions that suggest a complex network of brain dysfunctions.
Researchers at UNIST have introduced non-solvating electrolytes to significantly improve the performance and lifespan of organic electrode-based batteries. The study achieved remarkable improvements in capacity retention and rate performance, with over 91% capacity retention after 1000 cycles.