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Tag: "magnet" at biology news

Nanoscale Diagnostic Sets Sights on Alzheimer's

...netic particles sandwich the biomarker targets. A magnet separates the sandwich complexes from the rest of the sample. The complexes are then heated to release the DNA bar codes, which are then measured by an extremely sensitive detector. Each DNA piece greatly increases the sensitivity of the test and its...

Research Permits First-Ever Visualization of Psychological Stress in the Human Brain

...molecules in subjects?own blood are ‘tagged?by the magnet and used as the natural contrast agent to measure cerebral blood-flow.?Researchers at Penn’s Center for Functional Neuroimaging have been at the forefront of the development of this technique, and its applications to imaging brain-function during cog...

Superconducting magnet attracts molecular research

...lity containing a state-of-the-art superconducting magnet for use in researching biological macromolecules s...llation of the gleaming 800 MHz German-made Bruker magnet was recently completed in a specially built facility on campus. Weighing in at roughly seven and a h...

Cellular scale drug delivery from the inside out

...tration of the principle, Lin holds a refrigerator magnet up to a liquid-filled glass vial containing human cervical cancer cells grown in vitro that contain nanospheres capped with iron-oxide particles. The cells slowly migrate and cluster to the side of the vial next to the magnet. "By using a powerful ...

Mitochondrial DNA sequencing tool updated

...chip. By crude analogy, each bit is like a unique magnet that sticks to its mirror image. But if the extracted DNA contains mutations or other variations from the standard consensus sequence annealed to the chip, the bits with those changes would appear abnormal to the specially designed computer softwa...

Rice scientists unveil 'nanoegg'

..., one positive and the other negative ?much like a magnet that attracts on one end and repels on the other. "Without a dipole moment, there is no 'handle' for light to grab hold of," Nordlander said. "In symmetric nanoshells, most of the light energy is lost to these 'dark modes.' With symmetry breaking, ...

Plants tell caterpillars when it's safe to forage

...he plant releases volatile compounds that act as a magnet for parasitic wasps ( Cotesia marginiventris ), which deposit their eggs in the larvae. Production of volatile chemicals increases during the day (when wasps are active) and decreases at night, suggesting that variations in production might affect th...

ABCB6 is key to production of heme in hemoglobin

...d have been repulsed--like two negative poles of a magnet pushing each other apart. Our work showed that ABCB6 overcomes that problem by simply grabbing porphyrin molecules and pulling them in. "We showed that there is a dynamic relationship between ABCB6 and the levels of heme and porphyrin that helps to...

Too mellow for our predatory world

... The islands in the Pacific Ocean continue to be a magnet for evolutionary biologists. Nowhere else is it possible to observe such a variety of different adaptation strategies in such a relatively small number of species. However, it is not only scientists who are drawn to the island; increasingly tourists ...

One-of-a-kind imaging probe reveals secrets useful for drug discovery

...he probe - the component that is inserted into the magnet to obtain chemical information from the samples. Developed by scientists at the National High Magnetic Field Laboratory at UF and in Tallahassee, and a manufacturer of NMR equipment, the probe is only about 2 inches in diameter, and the space for th...

Study to explore using magnets to correct 'sunken chest'

... UCSF team developed the new procedure, in which a magnet attached to the child's breastbone is coupled with...a steady, controlled, outward pull on the internal magnet to reshape the bone, cartilage and chest wall. The procedure marks one of the first times magnet...

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(Date:7/9/2014)... be able to cope with the rising salinity of Arctic ... today is best known for its tundra and polar bear ... 38 million years ago during what is known as the ... temperate forest with brackish water, home to a variety of ... giant tortoises. Much of what is known about the region ...
(Date:7/9/2014)... pain and fever but often can be defeated with antibiotics ... hard to beat. Now, scientists have built a new weapon ... Published in the journal ACS Applied Materials & Interfaces ... kill more of them than medicine alone. , David Leong, ... lie in wait, undetectable in the human body or in ...
(Date:7/9/2014)... sparrow-sized fossil from China challenges the commonly held belief ... the ability to fly. The birdlike fossil is actually ... the remains of a tiny tree-climbing animal that could ... Museum in Blanding, Utah, and Alan Feduccia of the ... Journal of Ornithology . , The fossil of ...
Breaking Biology News(10 mins):Shark teeth analysis provides detailed new look at Arctic climate change 2Shark teeth analysis provides detailed new look at Arctic climate change 3Researchers declassify dinosaurs as being the great-great-grandparents of birds 2
(Date:7/9/2014)... Cancer Center paint a relatively optimistic picture of women,s ... have spread to the chest wall or skin, but ... skin, regardless of size and whether they have involved ... and called "locally advanced" tumors, suggesting that they are ... survival. Locally advanced breast cancers of this and other ...
(Date:7/9/2014)... By looking at ... structure and function, personality, life experiences and genetics, researchers can ... binge drinking within the next two years. Impulsivity, hopelessness, sensation-seeking ... events and a family history of drug use contribute to ... child had had a single drink at age 14 was ...
(Date:7/9/2014)... flatulence and have a reputation for being highly toxic, but ... now being being found to offer potential health benefits in ... and dementia. A new compound (AP39), designed and made at ... therapies, by targeting delivery of very small amounts of the ... , Scientists in Exeter have already found that the compound ...
(Date:7/9/2014)... Previous studies linking older age with kidney and heart ... kidney donation among older adults. However, in the first ... the Perelman School of Medicine at the University of ... above) enjoy similar life expectancy and cardiovascular health as ... kidneys. In light of the ever increasing organ transplant ...
(Date:7/8/2014)... Older kidney donors enjoy similar longevity and cardiovascular health ... study published in the American Journal of Transplantation ... individuals considering donation and the transplant professionals caring for ... donation by individuals aged 55 years and older has ... kidney disease, and heart disease, the removal of a ...
Breaking Medicine News(10 mins):Health News:Fox Chase researchers recommend updating the staging criteria for breast cancer diagnoses 2Health News:Fox Chase researchers recommend updating the staging criteria for breast cancer diagnoses 3Health News:What drives a child to abuse alcohol? 2Health News:Rotten egg gas holds key to healthcare therapies 2Health News:Penn study finds living kidney donation does not increase risk of death or heart disease for older 2Health News:Study finds kidney donation safe for healthy older adults 2
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