Articles tagged with Electrodes
A recent study by Tokyo Tech researchers explores the structure and electron transport properties of molecular junctions. The findings reveal three distinct structures at the junction, corresponding to high- and low-conductivity states, which hold promise for designing novel electronic devices with unique properties.
Researchers from Japan and Germany have created an eco-friendly light-emitting electrochemical cell using dendrimers combined with biomass-derived cellulose acetate as the electrolyte and a graphene electrode. The device has a long lifespan of over 1000 hours and is environmentally friendly.
Researchers develop an ionic device utilizing redox reactions to achieve a high number of reservoir states, enabling efficient complex nonlinear operations. The device demonstrated remarkable performance in solving second-order nonlinear dynamic equations and predicting future values with low mean square prediction error.
Researchers at TUM developed a new approach to measure human brain activity using microelectrodes and awake brain surgery. They found individual neurons specialize in handling specific numbers, providing insights into cognitive functions and developing solutions for brain function disorders.
Researchers discovered that microscopic Caenorhabditis elegans worms can use electric fields to jump across Petri plates or onto insects, allowing them to attach themselves. This behavior is made possible by the natural electric charge of pollinators like bumblebees and hummingbirds.
Researchers at MIT have created a metal-free, Jell-O-like material that can conduct electricity similarly to conventional metals. The material is made into a printable ink, which the researchers patterned into flexible, rubbery electrodes.
A research team has developed an organic redox polymer that surpasses the capacity of graphite, enabling aluminium-ion batteries to store up to 167 milliampere hours per gram. The battery retains 88% of its capacity after 5,000 charge cycles at 10 C.
Researchers at Waseda University have developed a novel, completely solid, rechargeable air battery that uses a benzoquinone-based negative electrode and solid Nafion polymer electrolyte. The battery exhibits high performance and close to maximum capacity, overcoming metal-based battery limitations and liquid electrolyte safety concerns.
Researchers at the University of Illinois created a new system for desalination using microchannels in Prussian blue electrodes. The study found that adding these channels increased seawater desalination efficiency by five times, reaching salinity levels below freshwater thresholds.
Researchers at Oak Ridge National Laboratory discovered a method to press solid electrolytes, eliminating air pockets that block ion flow and increasing conductivity by nearly 1,000 times. This breakthrough enables unprecedented control over internal structure, paving the way for industrial-scale processing and more reliable batteries.
Researchers introduced a next-generation model membrane electrode with ordered array of hollow giant carbon nanotubes, unlocking new possibilities for energy storage and electrochemical studies. The conformally carbon-coated layer exhibits vertically aligned gCNTs with nanopores ranging from 10 to 200 nm in diameter.
Rice University engineers developed ultraflexible nanoelectrodes that can deliver high-resolution stimulation therapy with minimal scarring and degradation. The devices showed precise spatiotemporal stimulus control, enabling the development of new brain stimulation therapies for patients with impaired sensory or motor functions.
Researchers developed a biofuel cell on a chip that measures blood glucose levels using a few microliters of blood. The sensor generates an electrical signal based on the enzyme's reaction with glucose, providing accurate readings using general-purpose devices like smartphones.
Researchers have developed a solvent-free process to manufacture lithium-ion battery electrodes that are greener and cheaper than traditional methods. The new process produces electrodes that can charge faster, with a capacity of 78% in just 20 minutes.
The DGIST research team created a selective photothermal layer formation technology and a transparent electrode using fine inkjet printing solution process. This enables the development of biomaterial devices requiring device transparency or sensitivity to temperature changes.
A study by Mayo Clinic researchers found that brain transmission speeds continue to increase into early adulthood, reaching a plateau around age 30-40. This may help clinicians offer therapies to treat disorders such as anxiety and depression that emerge during late adolescence and early adulthood.
Researchers from GIST have developed graphene-based conductive hydrogels that are injectable, degradable, and highly compatible with biological systems. The novel electrodes outperform traditional metal electrodes in signal transmission and stability, offering promising solutions for long-term medical monitoring and treatment.
The study presents a novel, deployable electrode array for minimally invasive craniosurgery, featuring spiraled arms that unfold over sensitive brain tissue. The device's eversion mechanism allows for arbitrary size deployment with minimal compression on the brain.
Researchers are working on a new concept for lithium-air batteries that could lead to significant improvements in energy storage capacity. A collaborative project in Germany aims to test new materials and components to enhance the stability of these battery cells. The goal is to overcome technical challenges such as unstable electrolyt...
The Texas Heart Institute and The University of Texas at Austin receive a four-year, $2.37 million NIH grant to develop injectable hydrogel electrodes for preventing and managing ventricular arrhythmias. Researchers have already demonstrated the feasibility of pacing the heart using the hydrogel in a porcine model.
Researchers at MIT developed an ingestible capsule that delivers electrical stimulation to the stomach, boosting ghrelin production and potentially alleviating nausea and appetite loss. The device uses a grooved surface to create a drier environment for electrodes to contact stomach tissue.
Researchers developed an ecofriendly disposable sensor that can check levels of glucose and other biomarkers in saliva using a wooden tongue depressor. The device uses low-power diode lasers to create conductive electrodes, making it cheaper and easier to produce on-site at medical facilities.
Researchers have developed a new type of organic battery that uses redox-organic electrode materials (OEMs) synthesized from natural materials. The battery features high capacity, scalability, and recyclability, making it a promising sustainable alternative to traditional lithium-ion batteries.
Researchers at UTHealth Houston identified two brain networks involved in reading, working together to integrate word meanings. The study used electroencephalography recordings from patients with epilepsy to measure neural activity while reading complex sentences.
Researchers developed an electrochemical sensor using 3D printing to detect Parkinson's disease at different stages by measuring levels of the protein PARK7/DJ-1. The sensor was miniaturized for portability and could be used for continual monitoring with alerts for physicians and patients.
Researchers at Kyoto University have successfully created silicon-based photovoltaics at room temperature using a hybrid PEDOT:PSS/silicon heterojunction. This breakthrough technology offers improved production speed and cost, with power generation efficiency above 10%. The new process has the potential to facilitate large-scale diffus...
Researchers at Drexel University have developed a new method that combines UV-visible spectroscopy with cyclic voltammetry to track ion movement in batteries and supercapacitors. This breakthrough could lead to the design of higher performing energy storage devices.
WVU engineers developed a new electrode cuff called MouseFlex to test electric current treatments, overcoming previous challenges with stability and durability. The device can withstand high electrical stimulation and may benefit patients with conditions like rheumatoid arthritis and drug-resistant epilepsy.
Researchers at IISc have developed a novel ultramicro supercapacitor with enhanced electrochemical capacitance, exceeding 3000% increase in capacitance under certain conditions. The device uses Field Effect Transistors as charge collectors and solid gel electrolyte for improved electron mobility.
Researchers at the University of São Paulo developed a kraft paper-based electrochemical sensor that can detect traces of pesticides in fruit and vegetables in real time. The device resembles a glucometer and has been shown to be highly sensitive, fast, and inexpensive.
University of Illinois researchers create an electrode that attracts and captures short-chain PFAS, a type of 'forever chemical,' using electrosorption. The design allows for selective fluorophilic interactions, enabling the capture of these persistent contaminants from environment.
Researchers utilize liquid crystal droplets to visualize electric field distribution within microelectrodes, revealing rotational and translational behaviors under applied voltage. The technique provides high spatial resolution and detection accuracy, enabling defect location analysis.
A new spectroscopy probe could improve the accuracy of deep brain stimulation procedures for Parkinson's patients by providing real-time information on brain tissue. The probe uses optical fibers to perform spectroscopic measurements, which can help neurosurgeons navigate instruments inside the brain.
Researchers from the University of Illinois have developed a new theory that explains how convection occurs inside reactive porous media, shedding light on mass and heat transfer principles. The theory introduces a spectral Sherwood number and extends Newton's law of cooling for convection heat transfer to transient conditions.
A team of researchers at KAUST has developed a biological method to produce size-controlled palladium nanoclusters anchored on the surface of Geobacter sulfurreducens, outperforming benchmark catalysts in water-splitting reactions. This eco-friendly approach could provide a sustainable solution for high-performance catalysis.
Researchers at MIT have created a way for tiny robots to recover from severe damage to their wings, enabling them to sustain flight performance. The development uses laser repair methods and optimized artificial muscles that can isolate defects and overcome minor damage, allowing the robot to continue flying effectively.
Researchers at Swansea University have created a low-cost and scalable method to manufacture fully printable perovskite photovoltaics using carbon ink. The devices achieved similar performance to conventional gold electrodes, with power conversion efficiencies of up to 14%.
A European consortium has achieved a world-record solar-to-fuel efficiency of over 10% in converting CO2 and H2O into sustainable fuels using sunlight. The innovative cell produces hydrogen continuously (24/7) without the use of critical raw materials.
Researchers have developed a smart contact lens capable of implementing AR-based navigation using a novel electrochromic display technology. The device uses Prussian blue to display directions to the user in real-time, overcame limitations of existing AR devices.
Scientists have developed a conductive polymer coating called HOS-PFM that can significantly enhance the performance of lithium-ion batteries in electric vehicles. The coating ensures battery stability and high charge/discharge rates while extending battery life by up to 15 years.
Chung-Ang University researchers develop a novel flexible supercapacitor platform with vertically integrated gold electrodes in a single sheet of paper. The design shows low electrical resistance, high foldability, and good mechanical strength, making it suitable for wearable devices.
A team of Japanese researchers has developed a novel approach to enhance the fast-charging ability of lithium-ion batteries using a binder material that promotes Li-ion intercalation of active material. This results in high conductivity, low impedance, and good stability, reducing the concentration polarization of Li+ ions.
A study published in NEJM Evidence found that seizures can be predicted at least 35 minutes before onset in patients with temporal lobe epilepsy. This breakthrough discovery has significant implications for developing more effective therapies for this common seizure disorder, which affects over 50 million people globally.
Direct incorporation of a metasurface in a laser cavity enables spatiotemporally modulated laser pulses. Giant nonlinear saturable absorption allows pulsed laser generation via Q-switching process.
Researchers have successfully grown electrodes in living tissue using the body's molecules as triggers, paving the way for fully integrated electronic circuits in living organisms. This breakthrough method allows for substrate-free organic bioelectronics and targets specific biological substructures for nerve stimulation.
A team of scientists has created an implantable microsensor that can measure serotonin levels in the brain in real-time without deactivation. This breakthrough could improve diagnosis and treatment of mental illnesses. The sensor uses galvanic redox potentiometry to detect serotonin concentrations over a broad range.
Scientists from Tokyo Metropolitan University have developed a new electrode material for deep-ultraviolet light-emitting diode applications, combining excellent electrical conductivity with unprecedented transparency. The new electrodes promise to impact industry by enabling more efficient and compact light sources for sterilization p...
Researchers have developed a machine learning model that can predict the word about to be uttered by a subject based on their neural activity. The model achieved 55% accuracy using six channels of data and 70% accuracy using eight channels, comparable to other studies requiring electrodes over the entire cortical surface.
A new superaerophilic/superaerophobic cooperative Pt electrode promotes efficient mass transfer of hydrogen, reducing oversaturated dissolved hydrogen and improving HER efficiency. The design achieves significant overpotential reductions compared to traditional flat electrodes.
Researchers at City University of Hong Kong have developed a lead-free perovskite photocatalyst for highly efficient solar energy-to-hydrogen conversion. The study uncovers the interfacial dynamics between halide perovskite molecules and electrolytes, enabling better photoelectrochemical hydrogen generation.
Researchers have created a supercapacitor that combines high power and energy density using a 'breathing' electrode with chlorine gas. The new device achieves rapid charge separation and mass transfer, increasing its energy storage capacity.
Researchers at the University of Illinois have developed a novel design for powerful microbatteries that can power tiny devices with high voltage and energy density. The batteries, which are hermetically sealed and compact, use innovative packaging technology and dense electrodes to achieve unprecedented performance.
Researchers at Washington State University have developed a new screen-printing method to create stretchable and durable wearable electronics. The process uses a multi-step layering technique to create snake-like electrode structures that can be transferred onto fabric or worn directly on human skin.
A new type of electrically conductive hydrogel scaffold has been developed to support brain cell growth and differentiation. The scaffold mimics the soft conditions of brain tissue and enables the creation of implantable biohybrid BCIs that integrate with a patient's brain tissue.
Researchers have developed novel organometallic molecular junctions that exhibit unprecedented thermoelectric performance, achieving a Seebeck coefficient of 73 μV/K. These results are promising for the development of nanoscale semiconductors and efficient thermoregulation.
Researchers have successfully demonstrated that human brain organoids implanted in mice can establish functional connectivity and respond to external sensory stimuli, including visual cues. The breakthrough uses a combination of transparent graphene microelectrode arrays and two-photon imaging, enabling real-time observation of neural ...
A new algorithm developed by researchers at Charité improves motor symptoms comparable to standard of care treatment, increasing efficiency in deep brain stimulation for Parkinson's disease. The study suggests a promising result for imaging-based algorithms to simplify clinical practice and improve therapeutic outcomes.
Researchers developed an all-optical approach to pumping chip-based nanolasers, enabling dense arrays of highly precise devices. This method could aid in meeting the growing need for faster data processing, streaming ultra-high-definition movies and gaming.
Researchers from City University of Hong Kong developed an advanced wireless haptic interface system called WeTac. The system provides a vivid touch experience with personalized tactile sensation data and overcomes the shortcomings of existing bulky gloves.
A recent study suggests that stimulating the intersection of two particular brain networks correlated with better patient outcomes than stimulating nearby sites for patients with Alzheimer's disease. Cognitive improvement was associated with DBS to the direct interface between the fornix and bed nucleus of the stria terminalis.