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Tag: "thin" at biology news

Ultrathin films deliver DNA as possible gene therapy tool

...ution, then another. The individual layers are so thin it would take roughly 10,000 of them to equal the thickness of a single sheet of paper. As it turns out, making the DNA-containing films is relatively straightforward, Lynn says, but "getting [the DNA] back out of the films is the hard part." Th...

Prehistoric mystery organism verified as giant fungus

...ecimens. He tediously sliced them into hundreds of thin sections and made thousands of images taken through microscopes to determine the organism’s identity. Now Boyce, Hotton and their colleagues have produced independent evidence that supports Hueber’s case. The team did so by analyzing two varieties...

Surgeons with video game skill appear to perform better in simulated surgery skills course

...aining curricula that include video games may help thin the technical interface between surgeons and screen-mediated applications, such as laparoscopic surgery," the authors conclude. "Video games may be a practical teaching tool to help train surgeons." ...

Nanotechnology shows promise as next wrinkle fighter

...ngineer has discovered that nanoparticles can stop thin polymer films from buckling and wrinkling. It's a new solution to a critical problem as thin films become more important in new technology such as electronic monitors. The cosmetic arsenal t...

Applied scientists create wrinkled 'skin' on polymers

...on of the polymer close to its surface and forms a thin stiff skin which wants to expand," explains Vaziri. "The consequent mismatch between the mechanical strain of the generated stiff skin and the underlying polymeric substrate, almost like a tug-of-war, buckles the skin and forms the wrinkle patterns."...

Penn study on lung-infecting bacterial enzyme suggests new approach to cystic fibrosis treatment

... (and accompanying water) into airways, creating a thin layer of fluid to keep airways clear. However, SMase, secreted by certain respiratory tract bacteria, breaks down lipids surrounding CFTR and thereby suppresses CFTR’s chloride-passing function. To make matters worse, the products of the lipid breakd...

Researchers develop technique for bacteria crowd control

...he transmission of tiny electric current in a very thin film sample cell containing a colony of bacteria. ...mental studies of collective bacterial swimming in thin fluid films where the dynamics are essentially two-dimensional and the concentration can be adjusted...

A rarity among arachnids, whip spiders have a sociable family life

...habitually stroke their offspring with their long, thin whiplike front legs and how the siblings congregate in social groups. "I was amazed at how incredibly interactive the groups are," said Rayor. "They are in constant tactile contact with one another. They are constantly exploring one another and int...

Nanotextured implant materials: blending in, not fighting back

...bad cells." Normal healthy blood vessels have a thin lining of specialized cells called the endothelium...cells established themselves, they formed a single thin layer that inhibited overgrowth of the smooth muscle cells that tends to narrow stented arteries. ...

Gene found for rare disorder may reveal new pathway in mental retardation

...e facial features found in classical CdLS, such as thin eyebrows that join together, long eyelashes, thin lips and excessive body hair. "In many of these patients, an experienced clinician might recogni...

Magnetic computer sensors may help study biomolecules

...r biosciences. Spin valves are made by stacking thin layers of materials with different magnetic properties. Their net magnetization can be switched on and off by applying an external magnetic field of sufficient strength to align the electron "spins" in the magnetic layers in the same (on) or opposite...

The longest carbon nanotubes you've ever seen

...l vapor deposition (CVD), a technique for creating thin coatings that is especially common in the semiconductor industry, with a novel substrate and catalyst onto which the carbon attaches. Supported by the National Science Foundation (NSF) and the Office of Naval Research, University of Cincinnati (UC...

New technique will produce a better chromosome map

...rce to each slide, rendering the preparations very thin and high in contrast. This allows the production of much clearer, information-packed images. The technique has other advantages: Because it relies on light microscopy, it is faster and more economical than electron microscopy, with comparable or s...

Role of noise in neurons

...ambridge University investigate the reliability of thin axons for transmitting information. They show that...g density of up to 4km per mm3 by using incredibly thin axons as wires, with an average diameter of 0.3 micrometers (1ìm is one millionth of a meter). Altho...

Lessons from the orangutans: Upright walking may have begun in the trees

...hat allowed our arboreal ancestors to venture onto thin branches. They could have gripped multiple branches with their toes and distributed their center of gravity more effectively, while keeping one or both of their long arms free to reach for fruits and other supports. Orangutans also keep their leg...

CT scan reveals ancient long-necked gliding reptile

...ph of the two specimens, rather they were a set of thin slices that had to be processed to obtain information about the animals. Even then, no single slice contained the entire skeleton. Post-scan processing produced an amazingly clear, if somewhat flattened, image of a small reptile with a long neck and...

'Lucky 13' as new gene discovery offers further hope for childhood blindness

...thin retinal photoreceptor cells as they are long, thin cells with a highly evolved structure on one end (the outer segment) which detects light and sends signals to the brain, a function requiring a large amount of energy. "LCA is usually a disease where protein function has been lost completely, but ...

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