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Gecko-like adhesives now useful for real world surfaces

April 21, 2014 3:12 pm | Comments

The ability to stick objects to a wide range of surfaces such as drywall, wood, metal and glass with a single adhesive has been the elusive goal of many research teams across the world, but now a team of Univ. of Massachusetts Amherst inventors describe a new, more versatile version of their invention, Geckskin, that can adhere strongly to a wider range of surfaces, yet releases easily, like a gecko's feet.

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Physicist creates new nanoparticle for cancer therapy

April 21, 2014 3:06 pm | Comments

Physicist Wei Chen at Univ. of Texas at Arlington’s Center for Security Advances Via Applied Nanotechnology was testing a copper-cysteamine complex created in his laboratory when he discovered unexplained decreases in its luminescence, or light emitting power, over a time-lapse exposure to x-rays. Further testing work revealed that the “Cu-Cy” nanoparticles, when combined with x-ray exposure, significantly slowed tumor growth in studies.

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Under some LED bulbs whites aren’t “whiter than white”

April 21, 2014 12:03 pm | by A'ndrea Elyse Messer, Penn State Univ. | Comments

For years, companies have been adding whiteners to laundry detergent, paints, plastics, paper and fabrics to make whites look "whiter than white," but now, with a switch away from incandescent and fluorescent lighting, different degrees of whites may all look the same, according to experts in lighting.

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Study casts doubt on climate benefit of biofuels from corn residue

April 21, 2014 11:53 am | by Leslie Reed, Univ. of Nebraska-Lincoln Communications | Comments

Using corn crop residue to make ethanol and other biofuels reduces soil carbon and can generate more greenhouse gases than gasoline, according to a study published in the journal Nature Climate Change. The findings by a Univ. of Nebraska-Lincoln team of researchers cast doubt on whether corn residue can be used to meet federal mandates to ramp up ethanol production and reduce greenhouse gas emissions.

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New research method produces large volumes of high-quality graphene

April 21, 2014 8:45 am | Comments

Researchers in Ireland have used a simple method for transforming flakes of graphite into defect-free graphene using commercially available tools, such as high-shear mixers.  They demonstrated that the process could be scaled up to produce hundreds of liters or more, and they have partnered with Thomas Swan Ltd. to develop two new graphene-based products for the marketplace.

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Nanoreporters tell ‘sour’ oil from ‘sweet’

April 21, 2014 8:38 am | by Mike Williams, Rice Univ. | Comments

Scientists at Rice Univ. have created a nanoscale detector that checks for and reports on the presence of hydrogen sulfide in crude oil and natural gas while they’re still in the ground. The nanoreporter is based on nanometer-sized carbon material developed by a consortium of Rice labs led by chemist James Tour, R&D’s 2013 Scientist of the Year.  

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Unlocking a mystery of human disease in space

April 21, 2014 7:45 am | by Jessica Stoller-Conrad, Caltech | Comments

Huntington's disease is a grim diagnosis. A hereditary disorder with debilitating physical and cognitive symptoms, the disease usually robs adult patients of their ability to walk, balance and speak. More than 15 years ago, researchers revealed the disorder's likely cause—an abnormal version of the protein huntingtin; however, the mutant protein's mechanism is poorly understood, and the disease remains untreatable.

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Poll: Big Bang a big question for most Americans

April 21, 2014 4:21 am | by Jennifer Agiesta - Associated Press - Associated Press | Comments

Few Americans question that smoking causes cancer. But they express bigger doubts as concepts that scientists consider to be truths get further from our own experiences and the present time, an Associated Press-GfK poll found. Americans have more skepticism than confidence in global warming, the age of the Earth and evolution and have the most trouble believing a Big Bang created the universe 13.8 billion years ago.

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Easter morning delivery for space station

April 20, 2014 8:20 am | by Marcia Dunn - AP Aerospace Writer - Associated Press | Comments

Space station astronauts got a special Easter treat: a cargo ship full of supplies. The shipment arrived Sunday morning via a Dragon, versus a bunny. The SpaceX company's cargo ship, Dragon, spent two days chasing the International Space Station following its launch from Cape Canaveral. Astronauts used a robot arm to capture the capsule 260 miles above Egypt.

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Hawaii is genetically engineered crop flash point

April 19, 2014 10:20 am | by Audrey Mcavoy - Associated Press - Associated Press | Comments

You can trace the genetic makeup of most corn grown in the U.S., and in many other places around the world, to Hawaii. The tiny island state 2,500 miles from the nearest continent is so critical to the nation's modern corn-growing business that the industry's leading companies all have farms here, growing new varieties genetically engineered for desirable traits like insect and drought resistance.

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Researchers find 3-million-year-old landscape beneath Greenland Ice Sheet

April 18, 2014 3:15 pm | by Joshua Brown, Univ. of Vermont, and Maria-José Viñas, NASA's Earth Science News Team | Comments

Glaciers and ice sheets are commonly thought to work like a belt sander. As they move over the land they scrape off everything, including vegetation, soil and even the top layer of bedrock. So a team of university scientists and a NASA colleague were greatly surprised to discover an ancient tundra landscape preserved under the Greenland Ice Sheet, below two miles of ice.

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Scientists produce thinnest feasible membrane

April 18, 2014 3:10 pm | by Fabio Bergamin, ETH Zurich | Comments

Researchers have produced a stable porous membrane that is thinner than a single nanometer. The membrane consists of two layers of graphene on which have been etched tiny pores of a precisely defined size. Extremely light and breathable, the new material could help enable a new generation of ultra-rapid filters or functional waterproof clothing.

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“Exotic” material is like a switch when super thin

April 18, 2014 3:05 pm | by Anne Ju, Cornell Univ. | Comments

Ever-shrinking electronic devices could get down to atomic dimensions with the help of transition metal oxides. Researchers from Cornell Univ. and Brookhaven National Laboratory have shown how to switch a particular transition metal oxide, a lanthanum nickelate (LaNiO3), from a metal to an insulator by making the material less than a nanometer thick.

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NASA's moon-orbiting robot crashes down as planned

April 18, 2014 10:28 am | by Marcia Dunn - AP Aerospace Writer - Associated Press | Comments

NASA's robotic moon explorer, LADEE, is no more. Flight controllers confirmed Friday that the orbiting spacecraft crashed into the back side of the moon as planned, just three days after surviving a full lunar eclipse, something it was never designed to do. Researchers believe LADEE likely vaporized when it hit because of its extreme orbiting speed of 3,600 mph, possibly smacking into a mountain or side of a crater.

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Impact glass stores biodata for millions of years

April 18, 2014 10:22 am | by Mark Nickel, Brown Univ. | Comments

Bits of plant life encapsulated in molten glass by asteroid and comet impacts millions of years ago give geologists information about climate and life forms on the ancient Earth. Scientists exploring large fields of impact glass in Argentina suggest that what happened on Earth might well have happened on Mars millions of years ago. Martian impact glass could hold traces of organic compounds.

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