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Active Book microchip provides hope for exercising paralyzed limbs
Scientists have been experimenting with muscles and technology to solve both human and robotic mobility issues for years. Now it looks as though a team of researchers from University College London, Freiburg University, and the Tyndall Institute in Cork have made a significant leap forward for paraplegics, thanks to a revolutionary microchip the team has dubbed "Active Book." What's notable about the chip is that it stimulates more muscle groups than existing technology without the need for external connections. This was accomplished via micro-packing and precision laser processing, which allowed tiny electrodes to be cut from platinum foil and rolled into a 3D book shape. These platinum foil "pages" close in around nerve roots, and are micro-welded to a hermetically sealed silicon chip. Once embedded into areas within the spinal canal, the chip can work to stimulate paralyzed muscles, implying patients could even "perform enough movement to carry out controlled exercise such as cycling or rowing." A press release from the Council which sponsored the research says the Active Book will begin trials sometime next year -- we can't wait to see the results.
Hitachi claims secret chemical formula will improve battery cathodes, double longevity
Before lithium-ion batteries, portable gadgets were a nightmare, forcing road warriors and Discman-toting teens to either swap disposable cells or deal with rechargables that (with few exceptions) were tricky to recharge. Of course, Li-ion batteries also have a downside: as laptop and cell phone users have no doubt found out, they too become disposable before long. One reason why is that acid in the electrolyte can corrode the cathode material -- and now, Hitachi claims it's found a way to strengthen its own. Using an undisclosed combination of elements to replace some of the manganese used in the company's cathodes, Hitachi claims they can strengthen their crystalline configuration to resist acid, reduce cost, and best of all, double the usable life of a lithium-ion cell to about ten years. We've heard similar claims before, of course, with other battery manufacturers promising us twenty years, but it looks like this technology might make it out of the lab. NEDO, a Japanese government organization, has commissioned Hitachi to bring these batteries to life for industrial applications like wind farms. Cell phones, sadly, will have to wait.
