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Tag: "device" at biology news

Bioartificial kidney under study at MCG

...kines that help direct the immune system. The new device for kidney failure adds billions of kidney cells t... Center and Cleveland Clinic Foundation showed the device was safe and produced desired results such as reducing circulating inflammatory mediators. Study res...

Tiny particles could solve billion-dollar problem

...es, Wong and their collaborators hope to develop a device that would include a cylindrical pump containing a... membrane of the gold-palladium nanoparticles. The device would be placed down existing wells where it would pump water through continuously, breaking TCE int...

Emory Eye Center Implants Its First Retinal Chips In Patients With Retinitis Pigmentosa

...n Research & Development Center to implant the device in several patients. The patients all have retinit... are planned for mid-February. "This experimental device may make it possible for those with retinitis pigmentosa to have a much better quality of life," say...

Purdue proves concept of using nano-materials for drug discovery

...ed in the paper detail how researchers created the device with the same "microfabrication" techniques used t...s from 1-10 nanoliters. "What's unique about this device is that the surface has nanometer-scale pores in it," Lee said. "The concept is fairly simple - ther...

Development of portable infectious disease detector

A portable device similar to today's homepregnancy tests that can qu...desktop diagnosticsystem and shrank it down into a device about the size of a coffee cup.One of the cost-saving aspects of the design was to keep thefluid-han...

Why do insects stop 'breathing'? To avoid damage from too much oxygen, say researchers

...air that had been freed of carbon dioxide. Next, a device measured when and how much carbon dioxide originated from the insect. Bradley explained that insects typically maintain 4-5 kilopascals of oxygen in their respiratory systems, 4-5 times lower than the normal oxygen concentration in the atmosphere. I...

Breakthrough method in nanoparticle synthesis paves the way for new pharmaceutical and biomedical applications

... magnetic nanoparticles for bioimaging and quantum device applications. ...

Implanted Devices Detect High-Risk Heart Failure Patients

...-by-heartbeat data that can be downloaded from the device and entered into a computer. One use of the data in this trial was to create a "footprint," or visual representation, of a patient's heart rate variability over time. Patients with a footprint of 30 percent or less in heart rate variability were almo...

Rush Physicians Using Gene Therapy For Heart Patients With Moderate To Severe Chest Pains Who Do Not Benefit From Other Treatments

...sty involves a catheterization with a balloon-like device that opens blocked arteries, while bypass surgery requires open-heart surgery to place veins removed from the patient's leg or arteries taken from the patient's chest wall or arm to "bypass" the blocked blood vessels. While both of these treatments ...

Ophthalmologists Use Artificial Silicon Retina Microchip To Treat Vision Loss

... surgeons insert a miniature cutting and vacuuming device that removes the gel in the middle of the eye and ...o Chow, "The use of the subretinal space to hold a device that artificially stimulates the retina seems a logical step in replacing the loss of photoreceptor ...

Special Imaging Study Shows Failing Hearts Are 'Energy Starved'

...icine. For the study, the researchers used an MRI device that combines conventional magnetic resonance imaging with spectroscopy to provide not only images of the anatomy, but also direct measurements of the concentrations of various important biochemicals and their chemical reaction rates within the cells...

Ophthalmologists implant five patients with artificial silicon retina microchip

... surgeons insert a miniature cutting and vacuuming device that removes the gel in the middle of the eye and ...o Chow, "The use of the subretinal space to hold a device that artificially stimulates the retina seems a logical step in replacing the loss of photoreceptor ...

Mayo Clinic Researchers Create 'Obedient Virus'; First Step To Use Measles Virus Against Cancer

...ses have to certain cells and using it as a homing device to seek and enter cancer cells. The measles virus became the focus of this vision several years ago when the surprising finding was made that the measles strain used internationally for vaccinations has natural anticancer activity. "But we had a co...

Artifical cornea lets woman blind 20 years see

... be different," he said. It isn't the cost of the device itself that is the problem, according to Dohlman. Rather, it is the prohibitive cost of the frequent post-operative visits, the travel required, the medications and contact lenses used in follow up with the patients. For now, however, the devices ar...

Researchers devise way to mass-produce embryonic stem cells

... bioreactor used in this study is a tissue-growing device developed by Ohio State scientists. While this bioreactor could be used to produce adult stem cells, the researchers chose to look solely at embryonic stem cells for this experiment. "There's more of a demand for an unlimited supply of embryonic ste...

Polymers with copper show promise for implanted sensors

...the amount varies from one person to another. "The device might work with me, but if you don't have enough of the reactive species in your blood, then it may not generate adequate nitric oxide levels and it may not prevent clotting," said Meyerhoff. To get at these questions, the researchers have developed ...

Scientists journey to southern Africa to unravel the secret world of elephant communication

...that converts acoustic sounds into vibrations. The device was brought to Mushara in 2002 and buried near the waterhole. Using long wires, the researchers connected the shaker to a tape deck installed in the upper level of the observation tower 100 yards away. Every time a herd showed up at the waterhole, O...

Marine sponge yields nanoscale secrets

...e high electronic performance required for today's device applications. Instead, the scientists expect that by learning the fundamental mechanism used in nature, that mechanism could be translated into a practical and low-cost manufacturing method. Such a "biomimetic" approach will eventually be used in in...

Measuring Enzymes At End Of Cancer Pathway Predicts Outcome Of Tarceva, Taxol

...ence that we can use toward development of a novel device that can measure CDK activity in human tissue within several hours," Ueno says. He adds that a clinical trial is currently under way that tests CDK activity both before and after patients with breast cancer are treated with Taxol. ...

Successful Test Of Single Molecule Switch Opens The Door To Biomolecular Electronics

...fferential resistance?(NDR) and it allows a useful device to be made with just two electrodes, not the three originally used. “NDR is the basis for memories, switches and logic elements,?Lindsay says. “It has been observed in molecules before but never in controlled conditions, never at low voltages, and n...

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