Sentences with phrase «ion flow»

The drug works by stopping toxic ion flow in the brain that is known to trigger nerve cell death.

In neurons, ions flowing through the cell wall initiate action, setting off a string of communications that tell organisms like us how to feel and behave.

Within the material, hydrogen ions flow freely through a solid crystal of oxygen ions.

A key stage in the molecular cascade of memory formation appears to be the opening of membrane channels through which calcium ions flow.

In microbes, ion flow tells the organism which way to turn.

The V12 engine is controlled by an innovative alternating current ignition system and also boasts advanced ion flow sensing used in this engine for the first time worldwide.

The SCN5A protein winds through the membrane of heart muscle cells, forming a channel that opens to let sodium ions flow into the cells.

When appropriately stimulated, the channels open, sodium ions flow in, and the muscle cells contract.

The following year, based on experiments in the giant squid axon, British biophysicists Alan Hodgkin and Andrew Huxley described how ion flow across the cell membrane generates the electrical spikes — called action potentials — that constitute these signals.

The levels of volatiles on the breath after consumption were analyzed by selected ion flow tube mass spectrometry.

Two decades ago, Smith and his Keele colleagues developed an instrument known as a selected ion flow tube (SIFT) to analyze the trace gases known to be present in interstellar gas clouds.

The structure with a blocker allowed a deeper analysis of how fluoride ions flow through the channel.

After constructing a 35 - nanometer - high channel between two silica plates and filling it with potassium chloride saltwater, they demonstrated that voltage applied across this nanofluidic transistor could switch potassium ion flow on and off.

EMSL explains, «When in use, lithium ions flow from the cathode through an electrolyte into the anode, most commonly made of carbon.

While electrons, with their negative charge, flow from one pole of the battery to the other (thus providing power for devices), positive ions flow the other way, through an electrolyte, or ion conductor, sandwiched between those poles, to complete the flow.

Inside lithium - ion batteries, ions flow between positive and negative electrodes, where the ions are embedded and then released to travel back through a substance called an electrolyte to the other end.

While collaborators in Germany will be pursuing clinical studies in human patients with neurodegenerative diseases, Lal and his research group at the UC San Diego Jacobs School of Engineering are particularly interested in testing anle138b on a variety of other diseases that are linked to toxic ion flow caused by amyloid proteins, including diabetes, tuberculosis and certain types of cancer.

In early prototypes the voltage needed to switch ion flow on and off was 75 volts, far too high to incorporate into modern integrated circuits.

By applying the method developed in this research, measurement of the negative ion flow at places still closer to the plasma electrode is possible for clarifying more detailed mechanism of the negative ions extracted as a beam.

A common protein plays a different role than previously thought in the opening and closing of channels that let ions flow in and out of our cells, researchers at Johns Hopkins report.

«Experimental drug blocks toxic ion flow linked to Alzheimer's disease.»

As soon as these cells are exposed to light, the channels open and positively charged ions flow into the muscle cell, which then contracts.

It helps even more if the cathode material is porous: more holes means more space and greater ion flow.

If enough ions flow in, that causes an electrical buildup in the cell, and soon this neuron fires.

In this new design, lithium ions flow from the cathode through the electrolyte, diffuse through the carbon shells, and enter the silicon — which can hold ten times as many lithium ions as carbon alone.»

They discovered a unique «double - barreled» architecture that contains two pathways through which fluoride ions flow, representing a new mechanism of ion transport.

This event often correlates with a rise of calcium ions flowing into the cell.

Drugs that specifically target the persistent sodium ion flow, or current, have been approved by the Food and Drug Administration for treating epilepsy.

The diffusion in complex systems goes one step further and can have very diverse characteristics: Tumor movement in living organisms, DNA transport within cells, ion flow in batteries, moving atoms on surfaces — all these are diffusion processes in complex systems.

Because the ions flow better and connect more readily with the electrodes at lower temperatures, the battery retains about 70 percent of its room - temperature charging capacity even at — 70 ° C.

A traditional battery has three key elements: an electrolyte solution made up of positive and negative ions, two electrodes made of different materials between which the ions flow, and a separator membrane through which positive and negative ions pass in opposite directions.

It makes a protein called channelrhodopsin - 2 (ChR2) that acts as an antenna to receive blue light and convert it to an ion flow.

Clarifying the detailed configuration of the negative hydrogen ion flow is a valuable result for both physics and technology research.

But these droplet engines have a problem: sometimes they form needle - like spikes that disrupt the way the thruster works — they get in the way of the ions flowing outward and turn the liquid to a gel.

The lithium ions flow to the cathode, or current - collecting side.

The main function of ion channels is the maintenance of ion gradients across the cell membrane, shaping action potentials and other electrical signals, controlling the ion flow across secretary and epithelial cells, and regulating the cell volume.

The scientists noted that lithium iron phosphate forms a lattice that creates small tunnels through which the lithium ions flow, but that although the cathode seemed ideal it still took some time for those ions to travel.