ブックマーク / www.technologyreview.com (18)
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richard_raw 2009/11/11
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Nanotube-Powered X-Rays
Tiny electron emitters inside an x-ray generator could improve medical imaging and cancer therapy. Carbon nanotubes are at the heart of a new x-ray machine that is slated for clinical tests later this year at the University of North Carolina (UNC) Hospitals. The machine could perform much better than those used today for x-ray imaging and cancer therapy, say the UNC researchers who developed the t
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Five-Dimensional Data Storage - MIT Technology Review
A new light-responsive material could lead to discs the size of today’s DVDs that store four orders of magnitude more data. Traditional DVDs and CDs store data on their surface in two dimensions, and holographic discs can store it in three. Now researchers have for the first time demonstrated what they call a five-dimensional optical material. It can record data in three spatial dimensions and in
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A Catalyst for Cheaper Fuel Cells
A new catalyst based on iron works as well as platinum-based catalysts for accelerating the chemical reactions inside hydrogen fuel cells. The finding could help make fuel cells for electric cars cheaper and more practical. Catalyst recipe: Carbon black, iron acetate and a red or white filler material are used to make the final catalyst. Fuel cell researchers have been looking for cheaper, more ab
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New Carbon Nanomaterial - MIT Technology Review
Graphene, a single layer of carbon atoms arranged in a honeycomb-like structure, has captured worldwide interest because of its attractive electronic properties. Now, by adding hydrogen to graphene, researchers at the University of Manchester, U.K., have made a new material that could prove useful for hydrogen storage and future carbon-based integrated circuits. While graphene is highly conductive
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