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Graphene


— Science

Even when stitched together, graphene remains the strongest known material

By - June 3, 2013 3 Pictures
A study conducted at Columbia University has revealed that even when stitched together from much smaller fragments, large sheets of graphene still retain much of their mechanical properties. The discovery may be a crucial step forward in the mass-production of carbon nanotubes that could be used to manufacture flexible electronics, ultra-light and strong materials, and perhaps even the first space elevator. Read More
— Digital Cameras

Graphene-based image sensor to enhance low-light photography

By - May 30, 2013 4 Pictures
A team of scientists at Nanyang Technological University (NTU) in Singapore has developed a new image sensor from graphene that promises to improve the quality of images captured in low light conditions. In tests, NTU claims it has proved to be 1,000 times more sensitive to light than existing complementary metal-oxide-semiconductor (CMOS) or charge-coupled device (CCD) camera sensors in addition to operating at much lower voltages, consequently using 10 times less energy. Read More
— Science

Soft robots could benefit from new light-controlled hydrogel

By - May 29, 2013 1 Picture
For many people, the word “robot” is likely to conjure up images of metal, mechanical men not unlike Cygan. But instead of creating robots in our own image, the relatively new field of “soft robotics” takes inspiration from creatures such as octopuses, squids, starfish and caterpillars for soft, flexible robots that could squeeze through small spaces. Such robots could benefit from a new hydrogel developed at the University of California, Berkeley that flexes in response to light. Read More
— Electronics

One-atom-thick germanium sheets could replace silicon in semiconductors

By - April 12, 2013 1 Picture
It consists of one-atom-thick sheets and it could revolutionize electronics ... but it’s not graphene. Chemists at Ohio State University, instead of creating graphene from carbon atoms, have used sheets of germanium atoms to create a substance known as germanane. Because of its numerous advantages over silicon, it could become the material of choice for semiconductors. Read More
— Science

Graphene aerogel takes world’s lightest material crown

By - March 24, 2013 3 Pictures
Not even a year after it claimed the title of the world’s lightest material, aerographite has been knocked off its crown by a new aerogel made from graphene. Created by a research team from China’s Zhejiang University in the Department of Polymer Science and Engineering lab headed by Professor Gao Chao, the ultra-light aerogel has a density lower than that of helium and just twice that of hydrogen. Read More
— Science

Graphene and human brain research to get around one billion euro in funding – each

By - January 29, 2013 1 Picture
The European Commission has announced two Future and Emerging Technologies (FET) Flagships that could each receive funding of a staggering one billion euro (US$1.3 billion) over a period of ten years. The “Graphene Flagship” and the “Human Brain Project” are large-scale, science-driven research initiatives designed to “fuel revolutionary discoveries” and provide major benefits for European society – hopefully creating new jobs and providing economic growth along the way. Read More
— Science

Crumpled graphene and rubber combined to form artificial muscle

By - January 24, 2013 1 Picture
Despite its numerous wondrous properties, a propensity to stick together and be difficult to flatten out once crumpled can make working with graphene difficult and limit its applications. Engineers at Duke University have now found that by attaching graphene to a stretchy polymer film, they are able to crumple and then unfold the material, resulting in a properties that lend it to a broader range of applications, including artificial muscles. Read More
— Environment

Graphene oxide causes radioactive material to "clump" out of water

By - January 12, 2013 2 Pictures
Removing radioactive material from contaminated water, such as that in Japan’s Fukushima nuclear power plants, could be getting a little easier. Scientists from Houston’s Rice University and Lomonosov Moscow State University have discovered that when flakes of graphene oxide are added to such water, it causes the radionuclides to condense into clumps. Those clumps can then be separated and disposed of. Read More
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