Articles tagged with Electrodes
Scientists have developed a positive electrode material that maintains its volume during repeated charge/discharge cycles, ideal for solid-state EV batteries. This breakthrough offers significant improvements in durability and charging speed, potentially reducing battery costs and enabling faster charging times.
Researchers at UT Austin developed a graphene-based e-tattoo that tracks electrodermal activity on the palm, enabling unobstructive ambulatory sensing. This technology reduces social stigma and provides accurate readings, addressing limitations of current bulky devices.
A Brazilian team developed an electrochemical immunosensor to detect SARS-CoV-2 antibodies, achieving 88.7% sensitivity and 100% specificity in just five minutes. The device can be adapted for other diseases and has potential for monitoring seroconversion and seroprevalence.
A new technique allows printing electronic circuits onto curved and corrugated surfaces without binding agents, paving the way for soft electronic technologies. Prototype smart contact lenses, pressure-sensitive gloves, and transparent electrodes have been created using this method.
Researchers at MIT discovered that mechanical stresses can prevent dendrites from forming in solid-state lithium batteries. The team developed a way to apply controlled pressure to divert the growth of dendrites, making lightweight batteries safer and more efficient.
A team of researchers used molecular dynamics simulations and electrochemical 3D atomic force microscopy to study the electric double layer structure of an ionic liquid on crystalline electrodes. They found that intermolecular interactions among cations and anions are stronger than electrode-specific interactions, proposing a key descr...
Scientists at Tokyo Tech developed an electrostatic actuator capable of generating forces comparable to human muscles, but with lower voltage requirements. The device uses ferroelectric liquid crystals and a 3D-printed electrode to produce contraction and expansion at low voltages.
The Wyss Center's ABILITY system, a fully implantable brain-computer interface, records neural activity in sheep with high accuracy, decoding fine movement intention from small brain areas. The device is designed to improve quality of life and independence for people with severe paralysis.
Researchers at Rice University have engineered bacteria to quickly sense and report on the presence of various contaminants. The living bioelectronic sensors can be programmed to identify chemical invaders and report within minutes by releasing a detectable electrical current.
A new therapy combining Imagery Rehearsal Therapy with Targeted Memory Reactivation has been shown to significantly reduce nightmare frequency and increase positive dreams in patients. The treatment, which involves associating a major piano chord with positive scenarios, resulted in lasting benefits even three months after the experiment.
A team of researchers at the University of Tokyo has discovered a new mechanism to stabilize lithium metal electrodes and electrolytes, leading to enhanced energy density. By introducing a compound called ferrocene into specific electrolyte systems, they achieved high Coulombic efficiency, a critical factor in battery cycle life.
Researchers at the University of New South Wales have developed optrodes that can measure neural activity using light, potentially revolutionizing medical technologies like nerve-operated prosthetics. The new approach addresses long-standing issues with impedance mismatch and crosstalk, paving the way for more complex neural networks.
Researchers at UNIST developed superaerophobic polyethyleneimine hydrogels to improve electrochemical hydrogen production by promoting bubble detachment. These hydrogels can be easily coated on electrodes, allowing for controlled pore size and porosity, leading to enhanced performance.
Researchers found that reactivating memories during sleep improves memory storage by triggering electrical activity in the brain. The study, led by Northwestern University, used implanted electrodes to record brain activity in five patients while they slept and presented sounds associated with learned objects.
A team co-led by CityU developed a wearable electrotactile rendering system that can mimic the sensation of touch with high spatial resolution and a rapid response rate. The device has various application potential, including enhancing VR/AR experiences and facilitating work in thick gloves.
Researchers created a 3D electrode array that maps the locations and activity of up to 1 million potential synaptic links in living brains. The system uses recordings of millisecond-scale evolution of electrical pulses in tens of thousands of neurons, allowing for dense and accurate mapping of brain circuits.
Researchers at UT Austin developed a stable EEG electrode that can be worn for up to four weeks without maintenance, enabling long-term monitoring of brain activity. This innovation has the potential to revolutionize non-invasive brain-computer interfaces and improve treatment outcomes for stroke patients.
Researchers at Helmholtz-Zentrum Berlin for Materials and Energy are utilizing X-ray absorption spectroscopy to investigate oxygen evolution in electrocatalysis. This study aims to improve the efficiency of green hydrogen production by developing more stable and cost-effective catalysts.
The CMU Array, a new microelectrode array, offers customized treatments for neurological disorders by allowing for three-dimensional sampling and ultra-high-density configurations. This technology has the potential to transform how doctors treat conditions like epilepsy and limb function loss.
Researchers have gained new insights into Li-O2 battery performance by studying the generation and disintegration of lithium peroxide. At small currents, channel diameters restrict growth, causing electrode blockage; at high currents, fast electrochemical reactions dominate sudden death.
Researchers at UT Austin fabricated a new type of electrode using magnets to create vertical alignment, enabling faster charging and potentially doubling range on single charge. The vertically assembled nanosheet networks show superior electrochemical performance due to high mechanical strength and electrical conductivity.
A pooled data analysis found that deep brain stimulation reduced OCD symptoms by 47% and improved substantial outcomes in two-thirds of participants. This treatment approach showed promising results in addressing severe OCD with substantial improvement in approximately half of the patients.
Scientists have developed a novel polymeric solid electrolyte with improved Li-ion conductivity and a wide potential window, making it suitable for practical use. The addition of a porous membrane enhances the electrolyte's performance by deterring Li dendrite formation, contributing to safer and more sustainable energy supply.
A recent ECU study discovered that tRNS can enhance neuroplasticity, allowing the brain to form new pathways and connections. This technology has shown promise as a tool to assist individuals with learning difficulties or neurological conditions.
Researchers found that certain molten salts can suppress dye aggregation in dye-sensitized solar cells, improving their performance. The introduction of these ionic liquids enhances photovoltaic parameters without significantly impacting dye adsorption.
Scientists at the University of Chicago discover a method to increase lithium selectivity in olivine iron phosphate using electrochemical intercalation. Seeding electrodes with lithium ions can repel unwanted elements, improving the efficiency of lithium extraction from dilute water resources.
GIST scientists create a new method to produce OSCs using zinc oxide that overcomes scalability issues without compromising PCE. The new technology uses sputtered ZnO and a ZnO nanoparticle layer obtained through blade coating, resulting in high conversion efficiencies.
Researchers at Gwangju Institute of Science and Technology improve triboelectric nanogenerators by using mesoporous carbon spheres to enhance charge transport and surface charge densities. The device achieves a 1300-fold higher output current, enabling potential sustainable energy harvesting.
Researchers have developed a low-cost, spongy electrode made from a sugar cube template, offering improved signal detection and reduced noise. The device's micropores provide increased contact area with the skin, enabling it to monitor uterine contractions and other health issues with high quality.
Researchers developed a facile method to transform floc sludge into porous carbon matrix composites for use as an electrode material in high-performance supercapacitors. The treatment process improved conductivity, mass transfer efficiency, and electrochemical performance.
Scientists have discovered that there is enough lithium in unconventional water sources to make extraction worthwhile. The composition of these sources affects the performance of emerging electrochemical intercalation technology, providing insights for refining and optimizing it.
The US Department of Energy has selected six new science and technology innovators to advance game-changing clean energy technologies through the Innovation Crossroads program. The startups will receive support from world-class experts and unique capabilities at Oak Ridge National Laboratory.
Researchers found that despite a powerful brain response to sound during sleep, the level of alpha-beta waves associated with attention and expectation is significantly reduced. This means the brain can analyze auditory input but fails to focus on it, resulting in no conscious awareness.
Researchers measured wolf sleep using non-invasive EEG, finding similarities with dog sleep but less REM time. The study offers a unique opportunity to understand the effects of domestication and cohabitation on wolf sleep phenotypes.
Researchers observe a significant increase in electrical conductivity when mica is thinned down to few molecular layers, exhibiting semiconductor-like behavior. The findings suggest that thin mica flakes have the potential to be used in two-dimensional electronic devices with exceptional stability and durability.
A team of researchers at Osaka University developed a new method for direct three-dimensional bonding of copper electrodes using silver, enabling reliable connections at low temperatures without external pressure. The process can be performed under gentle conditions, resulting in permanent connections as small as 20 micrometers.
Researchers at the University of California San Diego have developed a tiny, flexible neural probe that can record and stimulate neural activity while minimizing injury to surrounding tissue. The probe is ideal for studying peripheral nerves or the spinal cord, where traditional probes may not fit due to its small size and flexibility.
Ritsumeikan University researchers create a novel thin-film flexible piezoelectric-photovoltaic device that can generate electricity from indoor lighting. The device's performance is improved through strain-induced polarization in the ZnMgO layer, increasing open-circuit voltage and overcoming charge recombination issues.
Researchers developed a method to create conductive hydrogels using laser-induced phase separation, allowing for safe neural electrode implantation. The process enables precise reading of neural signals and electrical stimulation while minimizing immune response.
Scientists designed novel hard carbon anodes with controlled defects, pore structures, and cation doping to boost sodium storage capacity. The optimized materials showed improved rate capability, cycling stability, and energy density. Introducing potassium ions regulated the microstructure and surface functionality of the anodes.
Deep nerve stimulation using custom-wired electrodes and wireless implantable systems significantly lowers systolic blood pressure by up to 16% in two hours. The technology targets hypertension, a leading cause of death globally, affecting over 1 billion people.
A new electrode design boosts carbon dioxide electroreduction, converting CO2 to CO with 54% efficiency and stable large current densities. The results demonstrate a promising approach for scalable CO2 abatement and renewable energy consumption.
Researchers have developed a new measurement method in molecular electronics that enables the exchange of molecules at will. This allows for the measurement of conductivities of many different molecules in succession. The method has potential applications in biosensing and advanced molecular computing.
Researchers developed a biosensor using nanostructured and nanoporous surfaces to detect biomarkers in clinical samples, overcoming technical challenges of small sample amounts. The new technology can provide quick and accurate diagnoses for diseases like prostate cancer without needing dilution or preprocessing steps.
Researchers have identified efficient technologies to remove endocrine disruptors from wastewater, including ozonation and adsorption with activated carbon. These methods can be added to existing treatment plants, improving performance without major changes.
Researchers at Cedars-Sinai discovered how the brain uses a group of neurons in the frontal lobe to monitor performance, enabling humans to learn from mistakes and develop specific skills. This mechanism allows for flexibility in learning new tasks and adjusting focus based on conflict or difficulty encountered.
A flexible sensor embedded in a diaper measures multiple components in urine, sharing results over Bluetooth for fast bedside analyses. The technology has potential to provide quick and painless urinalysis for incontinent, elderly or infant patients.
Researchers have created a wearable sensor for plant leaves that wirelessly transmits data to a smartphone app, allowing for early detection of water loss and remote monitoring of drought stress. The device has the potential to save resources and increase yields by providing reliable data on plant health.
Researchers engineered NiCoP4O12/NiCoP nanowire arrays with high specific capacity and improved electrochemical performance through phosphorus doping. The material exhibits a high capacitance of 507.8 μAh·cm−2 and ultra-stable ability after 10000 cycles.
Researchers developed a disposable electrochemical sensor using graphite-based molecularly imprinted polymers to detect theophylline levels. The sensor can identify low concentrations of theophylline (2.5 μg/mL) in whole blood within 3 seconds, enabling real-time monitoring and potential overdose prevention.
Researchers at Terasaki Institute for Biomedical Innovation have developed a flexible, antibacterial conductive hydrogel-ePatch that accelerates wound healing with minimal side effects. The e-Patch uses silver nanowires and alginate to promote cell proliferation and migration, resulting in faster wound closure and reduced scarring.
A new report from Oak Ridge National Laboratory identifies supply chain must-haves for maintaining the pivotal role of hydropower in decarbonizing the nation's grid. The report also highlights advances in safer battery technologies and innovative electron microscopy techniques for imaging lithium in energy storage materials.
A groundbreaking system implanted directly on the spinal cord has restored blood pressure regulation in a patient with multiple system atrophy-parkinsonian type (MSA-P), enabling them to walk again after being bedridden for over a year. This innovative therapy paves the way for new clinical breakthroughs in treating degenerative diseases.
Dystonia is characterized by involuntary movements and postures, limiting daily activities. A new study maps specific brain networks for treatment success in patients with cervical and generalized dystonia. The findings reveal distinct stimulation sites depending on the type of dystonia, offering a more targeted approach to improving t...
A research team from City University of Hong Kong developed a multi-functional electrostatic droplet tweezer that can precisely trap and remotely guide liquid droplets on flat and tilted surfaces, as well as in oil mediums. The technology offers precise and programmable droplet manipulation with high velocity and agile direction steering.
Researchers found that stimulating a specific area of the auditory cortex improved speech perception in an epilepsy patient, allowing them to decipher spoken sentences with clarity. The study used invasive brain stimulation to enhance speech detection over background noise.
Scientists have created electrodes from recycled coffee grounds that can detect trace levels of biomolecules in vitro, offering a more sensitive surface for neurochemistry detection. The researchers hope to boost their neurochemical detection abilities by fabricating entire electrodes with carbon from coffee grounds.
Researchers developed a method to modulate molecular orbital energies, charge transport capacities, and spin electron densities of active units in covalent organic frameworks. This approach improves the stability of organic radicals and enhances the redox activity of COFs, leading to optimized lithium ion storage.
A team of researchers created a theoretical model demonstrating the difference in electrical differential capacitance between polymeric and ordinary ionic liquids. They predict a huge increase in capacitance for polymeric ionic liquids compared to regular ionic liquids with the same chemical composition.
Scientists at Hokkaido University developed a prototype sensor to rapidly measure adenosine triphosphate (ATP) and lactate levels in blood samples. The sensor's sensitivity allows for the accurate detection of these molecules, enabling rapid assessment of disease severity.