Articles tagged with Electrodes
Scientists at UCSF have discovered a way to detect abnormal brain rhythms associated with Parkinson's disease by implanting electrodes within the brains of people with the disease. This finding may lead to developing next-generation brain stimulation devices to alleviate symptoms.
A novel fabrication technique called selective area atomic layer deposition (ALD) developed by Brian Willis could vastly improve the efficiency of solar rectenna arrays. Rectennas can harness more than 70% of the sun's electromagnetic radiation, converting it into usable electric power.
Researchers at Lund University have successfully implanted an ultrathin nanowire-based electrode into a laboratory animal's brain, capturing signals from the nerve cells. This breakthrough allows for potential long-term monitoring and treatment of conditions like Parkinson's disease.
Scientists at EPFL have made significant progress in developing prosthetic limbs that can be controlled by the nervous system, paving the way for more realistic sensory feedback and improved function. The new technology has already shown promising results in clinical trials, with potential to restore dexterity and sensation to amputees.
Researchers identify common characteristics of molecules that form good contacts with metals, enabling improvements to organic electronic devices. They found that oxygen atoms on the molecule's backbone play a crucial role in forming soft metallic contacts.
Scientists used in-brain monitoring to show that memory networks involve simultaneous brain region activation. The study confirmed the importance of the medial temporal lobe and found distinct frequencies for time and place memories.
Researchers are developing new transparent contact electrodes using materials like graphene and carbon nanostructures, which offer improved conductivity and transparency compared to traditional metal oxides. These new materials have the potential to be combined with conventional solutions or used in entirely new applications.
Researchers at MIT develop the smallest indium gallium arsenide transistor, promising to replace silicon in computing devices. The tiny transistor performs well despite being just 22 nanometers in length.
Researchers at Aalto University have developed a cost-effective and environmentally friendly process for producing lithium batteries. By replacing the hazardous methylpyrrolidone solvent with water, they reduced production costs by up to 5%.
The new electrode is 10 times smaller than its competitors, with a conductive gel pad that cozies up to soft cell membranes, reducing inflammation and improving signal clarity. Long-term testing showed promise in stabilizing immune responses, paving the way for future brain-machine interfaces.
Researchers developed an all-carbon solar cell that absorbs near-infrared wavelengths, offering a low-cost alternative to traditional photovoltaic devices. The device uses carbon nanomaterials and has the potential to improve efficiency through better materials and processing techniques.
Extradural brain stimulation has been shown to be safe and effective in improving movement disorder symptoms for patients with Parkinson's disease. The technique, called EMCS, provides a less-invasive alternative to electrical deep brain stimulation (DBS) and led to small but significant improvements in voluntary movement control.
A Kansas State University doctoral student is developing a high-performance nanostructure of silicon coated onto carbon nanofibers to improve lithium-ion batteries. The material stores roughly 10 times the energy of current electrodes, resulting in a 10-15 percent improvement in battery technology.
Researchers found that viewers' bodily responses are more intense when watching ads for their preferred candidate, but less reactive to opposing candidate's ads. The study used physiological measures such as heart rate and skin conductance to analyze participants' emotional responses to campaign ads.
Researchers found that nerve cells in the posterior medial cortex (PMC) are strongly activated during recall tasks but suppressed when performing mathematical calculations. This study provides new insights into the brain's introspective activities and highlights the importance of the PMC region.
Scientists have developed a molecular spin-transistor that can read out the quantum state of an atom, paving the way for more stable and controlled quantum computing. The device, which uses electrodes to detect changes in the atomic spin, can maintain stability for up to 20 seconds.
Scientists have developed a new transparent solar cell that produces energy by absorbing infrared light and is 66% transparent to the human eye. The device uses a photoactive plastic and a composite electrode made of silver nanowire and titanium dioxide nanoparticles.
Researchers have developed a protein-based coating that can help rehabilitate long-term brain function and prevent the brain's immune response from rejecting brain-computer interface electrodes. The coating, using an interleukin-1 receptor antagonist, has shown promising results in pre-clinical studies with animal models.
The new SFPV technology allows for the creation of high-quality p-n junctions in semiconductors that are difficult to dope by conventional chemical methods. Researchers demonstrate the effect in configurations using copper oxide and silicon, achieving stable electrically contacted p-n junctions.
A study found that deep brain stimulation (DBS) treatment effectively improved motor function in Parkinson's disease patients for at least three years. However, improvements in health-related quality of life and cognitive abilities were gradually lost over time., The treatment was most effective for reducing tremors and muscle rigidity.
Scientists at the University of Leeds are developing more efficient biofuel cells that can harness light and hydrogen gas to create energy. The new technology has the potential to be used indefinitely, making it a promising alternative to traditional batteries.
Researchers are developing hybrid NEM devices to improve performance and reduce power consumption in electronics. While individual NEM devices show high performance, scaling up production is a challenge due to the need for reliability over millions of cycles. New material selection methods have been demonstrated to enhance robustness.
Researchers at MIT have developed hybrid copper-gold nanoparticles that can convert carbon dioxide into hydrocarbon fuels with significantly less energy than pure copper. The tiny particles, engineered to increase surface area and stability, have the potential to greatly reduce greenhouse gas emissions from powerplants.
Researchers at UCLA have developed graphene-based electrochemical capacitors that store substantial amounts of charge, far surpassing traditional batteries. These devices exhibit ultrahigh energy density values while maintaining high power density and excellent cycle stability.
Researchers successfully redirect an electrical discharge from its intended target to a normally less-attractive electrode using a virtual lightning rod created with femtosecond pulses of laser light. This feat demonstrates the potential of using laser-based lightning rods for research and protection.
A team led by Drexel University's Yury Gogotsi has provided the first quantitative picture of the structure of ionic liquid absorbed inside disordered microporous carbon electrodes in supercapacitors. This breakthrough mechanism opens the door for designing materials with improved energy storage capabilities.
A new flexible pressure sensor was developed at the University of California, Davis, using a drop of liquid in a polydimethylsiloxane sandwich. The sensor successfully measured human pulse and has potential applications in smart gloves and contact lenses for biosensing and monitoring.
Researchers at NIST discovered a new switching mechanism for layered switching devices, which retain information even when power is turned off. The discovery could enable computers that boot up in seconds and use far less energy.
Researchers at New York University have developed a method to visualize the internal workings of lithium-ion batteries using MRI, enabling diagnostic and testing capabilities. This technique can identify build-up of deposits on electrodes, which can lead to overheating and failure, allowing for improved battery performance and safety.
A new MRI technique allows for non-invasive examination of battery internal workings, enabling testing of various designs and materials under normal operating conditions. This method has the potential to improve battery performance and safety by visualizing build-up of lithium metal deposits on electrodes.
Researchers at UC Berkeley successfully decoded electrical activity in the brain's temporal lobe while listening to conversation, predicting words heard solely from temporal lobe activity. This breakthrough could enable reconstruction of imagined conversations for severely disabled individuals.
Researchers have developed a way to create stronger and more efficient continuous wave T-rays, which can detect biological phenomena such as increased blood flow around tumorous growths. The new technology could lead to innovations similar to the 'tricorder' scanner used in Star Trek, enabling faster and more convenient medical scanning.
Researchers have successfully created a nano-bio PEC electrode, consisting of iron oxide conjugated with a protein from blue-green algae, which is twice as efficient in water splitting as iron oxide alone. The use of phycocyanin, a light-harvesting protein, improves the electrode's ability to absorb photons and generate photocurrent.
Researchers have developed a new method to analyze electrical activity in the brain, enabling better diagnosis and treatment of brain illnesses. The technique can help identify impending seizures and paralysis, allowing for more effective interventions.
Scientists have found that stretching single molecules can increase their electrical conductivity, contradicting the common assumption that longer wires are less conductive. The discovery uses force-induced resonant tunneling and has significant implications for microelectronics and biological sensing.
Researchers developed novel plasma actuators using winding-shaped electrodes to induce three-dimensional variations in the shear layer, offering significant flexibility in flow control. These new designs adjusted the plasma-induced flow in the form of a ZNMF jet with streamwise and spanwise vortices.
Researchers at UCLA have developed a highly efficient method for producing transparent electrodes using silver nanowires in combination with other nanomaterials. The new electrodes are flexible and highly conductive, overcoming the limitations of indium tin oxide (ITO) materials.
Researchers have created a self-assembling platform for biosensors using synthetic DNA and carbon nanotubes. The technology allows for the creation of highly efficient sensors for detecting various compounds, including glucose, with potential applications in diabetes management and personalized medicine.
Researchers have developed a flexible brain implant that could pinpoint seizure start points and shut them down. The device conforms to the brain's surface, allowing for unprecedented brain activity observation.
A new microelectronic device developed by a Penn-led team can record brain activity at high resolutions, revolutionizing brain-computer interfaces for treating neurological and psychiatric illnesses. The device's flexibility and multiplexed nanosensors enable precise mapping of brain networks underlying normal function and disease.
Using ultra-short pulses of ultraviolet light, scientists increase the number of right-side-up antibodies in QCM sensors, more than doubling their sensitivity. This breakthrough opens up new possibilities for research using this type of sensor.
Researchers used scanning tunneling microscopy to assemble 1-nanometer sized molecules into a 3x3 square array, showing varying conductance across the structure. The study demonstrates the beauty and intricacy of molecular electronics, with applications in miniaturized circuits and challenges to be addressed.
Researchers refute hopping mechanism, showing that porphyrins' conductivity is influenced by temperature and length, potentially suitable for quantum computing applications. The study highlights the potential of porphyrins as electronic components due to their wave nature.
Researchers at UT Knoxville have developed an algorithm that improves the accuracy of electrocardiograms (ECGs) using smartphone technology. The algorithm can detect electrode misplacement and electromagnetic noise, providing more accurate A-F letter grades for ECGs and recommendations for optimal electrode placement.
A Wayne State University researcher has received a $475,000 grant to develop graphene-based neural implants that could improve the quality of life for millions. The technology aims to overcome limitations of current implantable devices by using a flexible material and biodegradable backing.
The University of Cincinnati has developed a lab-on-a-chip sensor that can detect highly electronegative heavy metals like manganese in human blood serum in just ten minutes. This sensor is environmentally friendly and child-friendly, making it an attractive option for clinical, occupational, and research settings.
Researchers at Rice University have created a hybrid graphene film that combines conductivity and transparency, potentially replacing indium tin oxide as a transparent conductive coating in displays. The material outperforms ITO in terms of transparency and conductivity, and is environmentally stable.
Case Western Reserve University researchers developed a new computer modeling method that accurately predicts how peripheral nerve axons respond to electrical stimuli, slashing the process from weeks to just seconds.
University of Pennsylvania researchers have identified a brain-based explanation for how memories become linked, revealing that contextual associations are retained across time scales. The study uses precise brain activity data from epilepsy patients to pinpoint the region of the brain responsible for episodic memory.
Researchers at North Carolina State University have developed a soft memory device that functions well in wet environments, similar to the human brain. The device has biocompatibility and holds promise for interfacing electronics with biological systems, such as cells or tissue.
Researchers at Wayne State University have been awarded a $330,000 NSF grant to develop a 3-D neural probe that can suppress tinnitus by electrically and chemically stimulating neurons. The probe will enable the integration of micro-channels for neurotransmitter-based chemical stimulation and local drug delivery.
University of Pennsylvania researchers have developed a way to form biological molecules that can be directly integrated into electronic circuits. A new microscope technique was also developed to measure the electrical properties of these devices.
Researchers have developed a novel technology to precisely modulate individual neurons, allowing for unprecedented insight into cellular mechanisms of neuronal networks. The technology enables real-time monitoring of brain activity, detection or prediction of seizure onset, and simultaneous treatment with anti-convulsive drugs.
A study published in the journal Brain found that electrical disturbances in the brain, known as cortical spreading depolarizations, are associated with poor recovery and long-lasting outcomes after neurotrauma. These disturbances can be invisible on routine EEG exams but represent extreme changes in voltage.
A team of researchers from Caltech and UCLA used an electrode array to stimulate a paralyzed man's spinal cord, allowing him to stand, step, and regain voluntary leg movements. The treatment improved autonomic functions such as bladder control, temperature regulation, and muscle tone over time.
Scientists have created a novel form of carbon that acts like a super-absorbent sponge, soaking up electric charge. The material can be incorporated into supercapacitor energy-storage devices with remarkably high storage capacity and quick recharge time.
Researchers used a precise atom-by-atom layering technique to fabricate ultrathin transistor-like devices, studying the conditions that turn insulating materials into high-temperature superconductors. The study revealed that as mobile charge carriers are increased, cuprate films transition from insulating to superconducting behavior wh...
Researchers have developed a novel transparent flexible woven electrode for thin-film solar cells, which is more stable and cost-effective than traditional indium tin oxide (ITO)-based electrodes. The new electrode uses a woven polymer material with embedded metal wires to ensure electrical conductivity.
A new MRI device guides surgeons during electrode implantation, potentially cutting surgery time in half and making the procedure faster and more comfortable for patients. The device was developed by a team of UCSF neurosurgeons and radiologists to improve deep brain stimulation outcomes for Parkinson's disease patients.
The University of Warwick team has created a rapid method for preparing robust, ultra-thin gold films on glass, offering a viable alternative to ITO-coated glass. The resulting electrodes are chemically well-defined and can be scaled up for large area applications.