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Electrical in Biological News

New way to make sensors that detect toxic chemicals

... under study is nickel oxide, which has unusual electrical properties. Other labs are studying nickel oxide ... Beach, is more interested in how nickel oxide's electrical conductance changes when toxic chemicals in the ... Beach said. "Here, we're using a combination of electrical responses to identify the signature of a toxic ...

Reading the brain without poking it

... with Spencer Kellis, a doctoral student in electrical and computer engineering; Kyle Thomson, a ... bioengineering; and Richard Brown, professor of electrical and computer engineering and dean of the ... do not penetrate the brain but detect abnormal electrical activity and allow surgeons to locate and remove ...

Researchers create freestanding nanoparticle films without fillers

... as hafnium oxide, because they have much higher electrical resistance. "We have made high-k nanoparticle ... an electric current is applied, it creates an electrical field in the liquid that attracts the ... made in this fashion stick together because the electrical field slams the nanoparticles into the film with ...

Investigating the development of mechanosensitivity

... into how mechanosensitivity arises. By measuring electrical impulses in the sensory neurons of mice, the ... neurons receive the stimulus and convert it into electrical signals that are conveyed to the brain. ... the MDC researchers succeeded in measuring tiny electrical currents in the cell membranes after a ...

Bull's-eye electrode helps interpret thoughts, deliver stimulus to aid paralyzed, epileptic patients

... be used in a therapeutic manner to administer an electrical stimulus to a precise location in the brain to ... focus moves, we can change which electrodes the electrical stimulation is applied to without having to ... so a method of turning off the seizure via electrical stimulation should prevent brain damage and ...

Heart attacks: The tipping point

... potential heart attack victims. By looking at the electrical activity coupling two types of heart muscle ... cell ratio within the heart could be measured by electrical activity. Studying the electric coupling tiny ... of fibrillation," he says. Indicating how the electrical impulses move in a healthy heart, in a ...

Novel electric signals in plants

... Using ion-selective micro-electrodes electrical signals in plants moving from leaf to leaf could ... The scientists discovered this new kind of electrical signal transmission system by applying a novel ... The scientists found out that the new electrical signal they called "system potential" was induced ...

Iowa Power Fund advances researcher’s long quest for efficient solar power

... Dalal, the Thomas M. Whitney Professor of electrical and Computer Engineering at Iowa State University ... Sumit Chaudhary, an assistant professor of electrical and computer engineering; Malika Jeffries-EL, an ... chemistry; Jaeyoun Kim, an assistant professor of electrical and computer engineering; Joseph Shinar, ...

Behind closed eyes

... found a unique source of direct measurement of electrical activity in the brain: data collected from ... An analysis of this data showed conclusively that electrical activity does, indeed, take place even in the absence of stimuli. But the nature of the electrical activity differs if a person is experiencing a ...

Nano-tetherball biosensor precisely detects glucose

... as both a tether and ultrathin wire to conduct electrical signals, said Timothy Fisher, a Purdue University ... Aaron Franklin, a doctoral student in electrical and computer engineering; Aeraj ul Haque, a ... the presence of glucose and oxygen, generating an electrical signal. The same system could be used in ...

Studies point to novel target for treating arrhythmias

... and Physics, played a key role in studying the electrical changes that caused the arrhythmias. Using ... Research and Education (VIIBRE) measured how electrical excitation traveled across the hearts expressing ... agents. These experiments defined the electrical underpinnings of the arrhythmias. ...

Protein that regulates hormones critical to women's health found in pituitary

... and hormones within nerve terminals. When an electrical impulse from one cell reaches a nerve terminal, ... command and determines whether the same electrical impulse will let a large or small amount of ... acts in the posterior pituitary by enabling electrical impulses to release more oxytocin. ...

Bright lights, not-so-big pupils

... by flashing light at the cells and recording the electrical current generated by one cell. They found that ... Perhaps each photon they capture elicits a tiny electrical signal. Then there would have to be bright ... activated melanopsin molecule triggered a large electrical signal. Moreover, to their surprise, the cell ...

Princeton researchers discover new type of laser

... said Claire Gmachl, who led the study. Gmachl, an electrical engineer, is the director of the Mid-Infrared ... unusual properties, including the need for less electrical power than the conventional beam. "If we can turn ... a better laser, which makes more efficient use of electrical power," said Gmachl. The team that conducted ...

A BBVA Foundation project comes up with a system enabling detection of cetacean hearing loss

... team with the aid of the BBVA Foundation are its electrical autonomy, measurement speed just a few minutes ... its brain registers this vibration through an electrical impulse that can be detected with simple suction cup electrodes. These electrical pulses are called auditory evoked potentials or ...

Claudin 11 stops the leaks in neuronal myelin sheaths

... that prevents current leakage from axons and aids electrical conduction along the length of the axon. ... To examine this question, Devaux and Gow compared electrical recordings from the optic nerve of wild-type and ... in the appearance of the myelin sheath, it slowed electrical signalsat least in neurons with small-diameter ...

NJIT seminar set for Nov. 6 to focus on bioelectronics -- emerging research area

... 6, 2008, from 4:45-6 p.m., in room 202, of the electrical and Computer Engineering (ECE) Building, 141 ... the NJIT campus. Members of the Institute of electrical and Electronic Engineers (IEEE), students and the ... in and assistant chair of the department of electrical and electronic computing. Chang organized the ...

ORNL nanotechnologies big winners in DOE call

... a variety of renewable energy, transportation and electrical grid technologies. These new materials, which ... advantages include improved mechanical, electrical and thermal properties compared to traditional ... arc lamps. This technology, which converts electrical energy from an arc-plasma lamp into radiant ...

Streamlining brain signals for speed and efficacy

... is non-linear. Brain cells signal by sending electrical impulses along axons, long, hair-like extensions that reach out to neighboring nerve cells. When an electrical signal reaches the end of an axon, the voltage ... space between neurons at a synapse and trigger an electrical signal in the adjacent cellor not. "Most ...

Salk researcher Terry Sejnowski elected to Institute of Medicine

... developed new ways of analyzing the sources of electrical and magnetic signals recorded from the scalp and ... In his lab, Sejnowski's team uses sophisticated electrical and chemical monitoring techniques to measure ... Network Pioneer Award from the Institute of electrical and Electronics Engineers. He has published over ...

Taking the next step toward advanced artificial limbs

... and body. Ted Clancy, associate professor of electrical and computer engineering at WPI, will lead the signal processing work. His lab will study the electrical signals that control normal muscle activity, to ... thin fibers that extend from neurons and carry electrical impulses across the nervous system. Bundles of ...

Expanding cell girth indicates seriousness of breast cancer

... cells become after being exposed to a specialized electrical field is helping researchers determine whether ... body. Purdue University scientists tested the electrical process and found cells that expanded the most ... all three types of cells were treated with the electrical process. The research technique uses ...

Coating improves electrical stimulation therapy used for Parkinson's, depression, chronic pain

... Medical Center have designed a way to improve electrical stimulation of nerves by outfitting electrodes ... say is a potentially critical step for advancing electrical nerve stimulation therapy. This type of therapy ... as well as reduce tissue damage caused by the electrical charge. "Our process is like taking a Ford ...

Slicing solar power costs

... for slicing solar cell wafers known as wire electrical discharge machining (WEDM) wastes less germanium ... uses an extremely thin molybdenum wire with an electrical current running through it. It has been used ... is injected along the wire, both to increase the electrical charge on the wire and to flush away material ...

NHGRI seeks DNA sequencing technologies fit for routine laboratory and medical use

... able to recognize individual DNA bases by their electrical or ionic signals to achieve high-accuracy ... enough to identify DNA base pairs by their electrical signals as a single DNA molecule is moved through ... is easy to detect, to better differentiate the electrical signal difference among DNA bases. The ...

How to make microwaves on a chip to replace X-rays for medical imaging and security

... by Ehsan Afshari, Cornell assistant professor of electrical and computer engineering, and Harish Bhat, ... intersection grounded through a capacitor. An electrical wave moves across the lattice by alternately ... an ocean beach and distorting the timing of the electrical signals that pass by. When low-frequency, ...

Detecting dangerous chemicals with lasers, exploring the brain's circuitry with light and more

... within or near single neurons to probe their electrical activity. Though well established, this method is invasive and often noisy because of background electrical activity in the brain. A number of alternative ... culture and shown that they can measure the electrical activity of live neurons. The technique takes ...

Needle-size device created to track tumors, radiation dose

... Ziaie, an associate professor in the School of electrical and Computer Engineering and a researcher at ... which has no batteries and will be activated with electrical coils placed next to the patient, contains a ... Byunghoo Jung, a Purdue assistant professor of electrical and computer engineering. ...

Fine print: New technique allows fast printing of microscopic electronics

... that the liquid jet was transferring some of its electrical charge to the surrounding gas, which breaks into charged particles and carries some of the electrical current. Korkuts predecessors and other scientists had looked only at the density of the electrical charges on the surface of the liquid jet. ...

CSIC and UAB will build the most advanced superconductor cable for electricity network

... 3200 Amperes RMS, and therefore can transport the electrical strength of 110 MVA, i.e. five times more than a ... to the efficiency needs of the world's electrical systems, which presently channel 40% of the ... into account that for each Gigawatt hour (GWh) of electrical energy saved, 160 tonnes of carbon oxide (COx) ...

Model connects circuit theory to wildlife corridors

... Using experience from his previous career as an electrical engineer, he reasoned that gene flow across a complex landscape should follow the same rules as electrical conductance in a complex circuit board. The ... represents patches of habitat as nodes in an electrical circuit and the genes of animals and plants as ...

Innovative model connects circuit theory to wildlife corridors

... Using experience from his previous career as an electrical engineer, he reasoned that gene flow across a complex landscape should follow the same rules as electrical conductance in a complex circuit board. The ... represents patches of habitat as nodes in an electrical circuit and the genes of animals and plants as ...

Implanting embryonic cardiac cells prevents arrhythmias

... the transplanted embryonic heart cells, improved electrical connections to other heart cells. The researchers ... transplanted embryonic cardiac cells, the hearts' electrical stability and function returned to normal. ... that the transplanted embryonic cells were making electrical connections with normal heart cells. Using ...

American Chemical Society's Weekly PressPac -- Nov. 14, 2007

... fuel cells. Their report, describing a successful electrical connection between a carbon nanotube and ... difficulty incorporating these enzymes into electrical devices because the enzymes do not form good electrical connections with fuel cell components. ...

Portable electricity, life-like prosthetics on the way

... prosthetic movements and also provide instant electrical power for soldiers and others through the simple ... Sharma said. Or, if you apply a voltage or electrical force to it, the object will bend or change its ... lot of movement, Sharma said. They take a lot of electrical energy for a lot of motion. Polymers are better ...

Rutgers scientist's research reveals critical knowledge about the nervous system

... to reverse the breakdown of the nervous systems electrical transmissions in such disorders as multiple ... fibrous part of neurons that carry the nerves electrical signals. A fatty substance, myelin covers those ... to provide a conduit for the fast conduction of electrical signals within the nervous system. Once that ...

Clemson physicist addresses international forum on thermoelectric energy

... specifically thermoelectricity used to generate electrical energy from waste heat. Thermoelectric ... to convert the heat of radioactive elements to electrical energy, powering these systems for over 30 years, ... increase savings significantly. Research on the electrical and thermal properties of new materials could ...

Thumb-size microsystem enables cell culture and incubation

... of her doctoral dissertation in the Department of electrical and Computer Engineering in Johns Hopkins Whiting ... G. Andreou, a professor in the Department of electrical and Computer Engineering who served as Blain ... to stimulate and gather information about the electrical activity of cells. ...

Using nanotubes to detect and repair cracks in aircraft wings, other structures

... nanotubes, and then monitoring the structures electrical resistance, the researchers were able to pinpoint ... crack is located, engineers can then send a short electrical charge to the area in order to heat up the carbon ... the form of a grid, which can be used to measure electrical resistance and also apply control voltages to the ...

New use for stem cells found in war on terrorism

... neural cells and can detect changes in their electrical activity, Stice said. When these cells activity ... the device. The monitoring system records electrical activity in the neural cells, which are usually ... When faced with a chemical agent, he said, the electrical activity is reduced quite a bit, and the signals ...
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