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Tag: "devices" at biology news

How brain pacemakers erase diseased messages

...ience the greatest relief from symptoms when their devices are tuned by physicians to deliver rapid pulses, G...d. Patients' symptoms can actually worsen when the devices are dialed to a slower setting. The intensity of stimulation also plays an important role, the st...

New technique will produce a better chromosome map

...ach includes two components: the use of mechanical devices to spread and flatten the cells, and the application of computer-based image processing to analyze hundreds of examples of the same chromosomes. With so many crisp images to analyze, computer algorithms can accurately calculate the number, shape and ...

Magnetic computer sensors may help study biomolecules

...ight be used in chip-scale, low-power microfluidic devices for stretching and uncoiling, or capturing and sorting, large numbers of individual biomolecules simultaneously for massively parallel medical and forensic studies—a sort of magnetic random access memory (MRAM) for biosciences. Spin valves are mad...

From the deep -- Researchers find new species of sea anemone

...Vs are also equipped with robotic arms and suction devices that are used to collect species. "It's like a submarine that's manned from the surface," said Daly, who plans to head to Monterey Canyon later this year in hopes of finding more dead whales with A. pearseae roosting on the bones. A successful tri...

Sandia researchers take new approach to studying how cells respond to pathogens

...ience of designing, manufacturing, and formulating devices and processes that deal with volumes of fluid on the order of nanoliters -- since the 1990s and have a good understanding about how to use microfluids to analyze cell activity. The microfluidic platform is fast and highly parallel and can perform hun...

Tracking sperm whales and jumbo squid

...ific coast—the first time that electronic tracking devices have been applied simultaneously to deep-diving predators and prey in the same waters. The research team included principal investigator William Gilly, professor of biological sciences at Stanford University, and lead author Randall Davis, professor...

Nanotechnology meets biology and DNA finds its groove

...esign and manufacture of electrical and mechanical devices at the scale of atoms and molecules. Using techniques typically reserved for the manufacture of computer chips, the Wisconsin team fabricated a mold for making a rubber template with slits narrow enough to confine single strands of elongated DNA. ...

Are one-third of costly implanted heart devices unnecessary? New study suggests yes

...s of thousands of heart patients to have high-tech devices implanted in their chests. Called ICDs or implantable cardioverter defibrillators, the expensive devices are designed to shock damaged hearts back into rhythm and save patients from sudden cardiac death, w...

Robotic exoskeleton replaces muscle work

...t difficult. Typically, robotic rehabilitative devices are worn by patients so that the limb is moved by ...ch receives its instructions from a computer. Such devices use repetition to help force a movement pattern. The U-M robotic exoskeleton works the opposite o...

Robotic therapy helps restore hand use after stroke

...ve better long afterwards." Previously, robotic devices have improved post-stroke shoulder and leg function. Cramer said this study is one of the first attempts to specifically aid hand function. Cramer presented HOWARD study findings yesterday at the American Stroke Association's International Stroke Con...

Surgeons develop simpler way to cure atrial fibrillation

...documentation of the effectiveness of the ablation devices compared to the incisions of the Cox-maze III," Damiano says. "This operation is very effective, and we now use the Cox-maze IV technique exclusively."...

Trojan horse strategy defeats drug-resistant bacteria

...ctions like those that occur in wounds, on medical devices and in the lungs of people with cystic fibrosis. For these reasons, a great deal of research is focused on finding new antibiotic compounds. In this study, researchers took a different approach. Rather than trying to find agents that best killed ...

Einstein's tea leaves inspire new blood separation technique

...hip roughly the size of a credit card. He said the devices could be produced cheaply with current manufacturing techniques -- about 50 cents per chip -- but could still be five to 10 years away from mass production. ...

Applied scientists create wrinkled 'skin' on polymers

...ential use for biological sensors and microfluidic devices and may offer new ways to build custom-made cell t...ns can be used in the construction of microfluidic devices for particle separation and mixture and also have potential use in designing biosenors. The research...

Natural polyester makes new sutures stronger, safer

...tory for society because this leads to new medical devices that can help people in new and novel ways," said ... of what the researchers hope will be many medical devices made from the natural polyesters. "What we've found is that this one material seems to be finding...

Ultrathin films deliver DNA as possible gene therapy tool

... to currently available drug-coated stents, Lynn's devices could offer additional advantages. For example, Lynn hopes to deliver genes that could prevent the growth of smooth muscle tissue into the stents, a process which can re-clog arteries, or that could treat the underlying causes of cardiovascular dise...

MIT: Pulsing light silences overactive neurons

...euroengineering group plans to start studying such devices in transgenic mice this year. The group also pl...involved in epilepsy could help scientists develop devices that can predict when a seizure is about to occur, allowing treatment (either shock or light) to be ...

Swimming 'to the left' gets bacteria upstream, and may promote infection

...environment, Köser's team constructed microfluidic devices using soft lithography. Inside the devices they set up various flow patterns to observe the bacteria in channels that were only 150 or 300 micr...

US conservation efforts bring more marine turtles to UK

...incides with the increasing use of turtle excluder devices in shrimp nets in US and Mexican waters. Both spec... have included the introduction of turtle excluder devices in fishing nets and hatcheries to protect eggs. Matthew Witt concludes: ‘The increase of turtles ...

Huddling and a drop in metabolism allow penguins to survive the South Pole cold

...eding and incubation. Additionally, using external devices during pairing and visual observations of implante...ve pairs of emperor penguins were captured and had devices ("loggers") surgically implanted to record the animals internal temperatures. Pairs were selected in...

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