Sentences with phrase «used as an electrode»

This structure is key to their potential for being used as electrode materials for lithium - sulfur batteries.

Fine - tuning becomes critically important as materials scientists test more 2 - D materials like graphene and nanotubes for use as electrodes.

When used as an electrode material, it greatly increases the surface area with the same amount of material.

In numerous tests, the researcher and his team investigated the nano - material graphene, whose extremely high specific surface area of up to 2,600 m2 / g and high electrical conductivity practically cries out for use as an electrode material.

By employing proprietary pretreatment and processing, researchers at Oak Ridge National Laboratory and Drexel University have produced flexible polymer carbon composite films from scrap tires for use as electrodes for supercapacitors.

Not exact matches

Traumatic birthing experiences, like the use of drugs to induce labor and numb pain, internal electrode probes screwed onto baby's scalp, forceps, C - section, immediate cord clamping, suctioning, rough handling, bright lights, separation from mom and being left alone in a nursery incubator etc., can be hard - wired into a deep memory base that you, as a now functioning adult, can't even remember, let alone access!

The EEG was recorded at a 500 - Hz sampling rate from nine channels (F3, F4, C3, Cz, C4, P3, P4, T3, and T4), with the average of the mastoid electrodes used as a common reference.

As with Tesla, the details remain confidential, but the idea is to take coatings normally used to improve the longevity of artificial joints, and apply them to making batteries with dry electrodes.

These bacteria would effectively eat electrons from one electrode, use them as a source of energy, and discard them on to the other electrode.

The results of this work could lead to the ability to design materials that have extensive surface areas that can be used in batteries as high durability silicon electrodes.

The new study is the first to demonstrate the synthesis of active electrode materials using a fungal biomineralization process, illustrating the great potential of these fungal processes as a source of useful biomaterials.

The investigators used a multistep, yet simple, process to convert tree leaves into a form that could be incorporated into electrodes as active materials.

Most anesthesiologists monitor their patients using a machine known as a bispectral index monitor, which reads brain waves from electrodes on a patient's scalp and produces a score from 100 to 0.

The electrode serves as a catalyst, a material that can spur one reaction after another without ever being used up.

In fact, there have been many efforts to improve lithium - ion battery or supercapacitor performance using alternative electrode materials such as carbon nanotubes and other manganese oxides.

Used as a counter electrode in a dye - sensitized solar cell, the material enabled the cell to convert power with up to 6.8 percent efficiency and more than doubled the performance of an identical cell that instead used an expensive platinum wire counter electrUsed as a counter electrode in a dye - sensitized solar cell, the material enabled the cell to convert power with up to 6.8 percent efficiency and more than doubled the performance of an identical cell that instead used an expensive platinum wire counter electrused an expensive platinum wire counter electrode.

As batteries are used and charged, the electrochemical reaction results in the movement of ions between the two electrodes of a battery, which is the essence of an electrical current.

To ensure safety, additives to electrolytes, such as nanodiamonds, need to be combined with other precautions, such as using non-flammable electrolytes, safer electrode materials and stronger separators.»

Other groups are looking at using a single organic molecule, strung between two electrodes, as a transistor.

«Using a new layer - by - layer fabrication process, we created a microfluidic environment in which TEER - measuring electrodes are integral components of the chip architecture and are positioned as close as possible to the tissues grown in one or both of two parallel running channels,» said Olivier Henry, Ph.D., a Wyss Institute Staff Engineer who was the driving force behind the new Organ Chip designs.

Using sunlight to create fuels (such as hydrogen on the other electrode in this solar cell) with inexpensively prepared electrodes may provide a solution to the intermittency drawback of solar energy.

Symptoms such as movement restrictions, muscle rigidity, or tremor can be alleviated using the neurosurgical procedure which places small electrodes into deep structures of the brain.

Scientists initially used metal oxides as asymmetric supercapacitor electrodes, but, as metal oxides do not have particularly high electrical conductivities and become unstable over long operating cycles, it was clear that a better alternative was needed.

Using a new type of optical imaging, Harvard Medical School researchers observed neurons as they were stimulated by an electrode.

Unlike the electrodes used in lithium - ion batteries, these organic compounds don't rely on intercalation — the process of continuously integrating ions into their molecular matrix, which slows down as the temperature drops.

Electrodes that so far have been used are made of very expensive elements such as platinum or platinum - iridium alloys.

It might even allow electrodes to be self - repairing, he says — as the electrodes corrode during use fresh material could be electrodeposited.

The new approach uses yarns, made from nanowires of the element niobium, as the electrodes in tiny supercapacitors (which are essentially pairs of electrically conducting fibers with an insulator between).

Using a resistor to convert electrical charge to alternating current, Krupenkin was able to harvest electrical energy from drops of either mercury or galinstan, a gallium - based alloy as they were moved along these channels and over the electrodes.

How one woman learned to use the electrodes implanted in her brain as an extension of her nervous system.

In particular, they have to increase the number of charge / discharge cycles significantly, which could be achieved by improving battery and electrode designs as well as by using coatings other than reduced graphite oxide.

One group turned to an electrochemical approach, which can be adapted for in - the - field use, but their technique involved toxic mercury as the electrode.

Bolstered by the success of his experiment, Edgerton felt he might be ready to use electrode implants to help humans as well.

Currently used retinal implants feature electrode shapes based on traditional Euclidean geometry such as squares.

In a semi-transparent solar cell module as shown in the photograph, electrodes with two variants of the polymer PEDOT: PSS (commonly used in organic electronics) are used, where one acts as the anode and the other is modified to become the cathode.

Intracortical BCIs such as BrainGate use a tiny array of implanted electrodes to pick up the electrical activity of neurons in the motor cortex of the brain.

Scientists have tried building the electrodes out of common semiconductors such as silicon or gallium arsenide — which absorb light and are also used in solar panels — but a major problem is that these materials develop an oxide layer (that is, rust) when exposed to water.

The artificial synaptic TFT consisted of indium zinc oxide (IZO), as both a channel and a gate electrode, separated by a 550 - nanometre - thick film of nanogranular silicon dioxide electrolyte, which was fabricated using a process known as chemical vapour deposition.

Having outfitted the twelve participants with electrode caps, the researchers used a measure of the brain's electrical activity known as event - related brain potentials (ERPs) to monitor their physiological responses to different outcomes.

Using an onboard source of energy (such as a battery, ultracapacitor, solar panel or any combination thereof), the electrodes will send an electrical current into the plasma, causing the plasma to push against the neutral (noncharged) air surrounding the craft, theoretically generating enough force for liftoff and movement in different directions (depending on where on the craft's surface you direct the electrical current).

As a solution, earlier neuroprosthetic implants used tiny electrodes to detect and record movement signals at their last stop before reaching the spinal cord: the motor cortex.

Using electrodes implanted in the brains of three people to treat their epilepsy, Edward Chang and colleagues at the University of California in San Francisco mapped brain activity as the volunteers spoke in English.

Assistant Professor Ippei Akita, who is leading the project, said, «Using flexible device technology is a good solution to implement bio-compatible passive devices such as antennas or sensor electrodes.

In one VA - funded study, he is using a type of electroencephalography (EEG)-- in which veterans wear an electrode - studded cap on their head — to trace brain patterns that may eventually serve as biomarkers.

A comprehensive look at how tiny particles in a lithium ion battery electrode behave shows that rapid - charging the battery and using it to do high - power, rapidly draining work may not be as damaging as researchers had thought — and that the benefits of slow draining and charging may have been overestimated.

Researchers hope the material could one day be used to replace metallic, implanted neural electrodes with biopolymer electrodes that soften as soon as they touch moist neural tissue, thus avoiding damage to the fragile brain.

But Boyden still plans to try light therapy in people, as well as to induce gamma waves in other areas using electrodes.

Using brain data crowdsourced from 22 epilepsy patients with implanted electrodes, researchers from the University of Pennsylvania led by Danielle Bassett have developed a series of algorithms that can predict where in the brain a seizure will originate and which groups of neurons it will likely spread to as it grows.

Electrodes implanted in the brain that electrically stimulate specific regions are now being tested as treatments for depression and other mental illnesses; conceivably this technology also could be used to induce mystical states.

Research is currently underway on how electrodes implanted in the brain could be used in the treatment of various diseases, such as epilepsy or Parkinson's.