Other tech: artificial gill closer

Artificial Gills: One Big Stroke Closer To Reality The key to artificial gills, explains Harihara Baskaran, an engineer at Case Western Reserve University, is getting water to flow easily through microchannels, which mimic a real gill. Working with Infoscitex of Waltham, Mass., Baskaran is using chipmaking techniques to create tiny devices with hundreds of channels. …

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other tech: new robotic military vehicle, Crusher

“Crusher,” a 6.5-ton, six-wheeled robotic vehicle designed to negotiate harsh terrain, will be presented along with its predecessor, “Spinner,” at Carnegie Mellon’s National Robotics Engineering Center on April 28, spokeswoman Anne Watzman said. Although Crusher is designed to carry weapons, the university has worked only on the machinery of the vehicle, Watzman said. Crusher combines …

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Larger nanoscale: Improved electrospinning

Techniques improved could be useful on smaller scales. Daoheng Sun and Liwei Lin’s at the university of Berkeley have improved electrospinning. They enable fibers ranging from 50 to 500 nanometers in diameter to be deposited onto a collector plate in a directed, controlled manner. In reference to the shortened distance between the ejector and collection …

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Light powered engine added the 4 nanometer long Rice University nanocar

This work is continued refinement of increasingly complex and useful nanodevices. Light powered engine added the 4 nanometer long Rice University nanocar The car’s light-powered motor is attached mid-chassis. When struck by light, it rotates in one direction, pushing the car along like a paddlewheel. There is other coverage at cnetThe nanocar consists of a …

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Oak Ridge develops method for optically trapping and moving objects smaller than wavelength of light

A team from the Department of Energy’s Oak Ridge National Laboratory, California Institute of Technology and Protein Discovery developed a new method to use a beam of light to trap protein molecules and make them dance in space The technique, called photoelectrophoretic localization and transport, or PELT, involves shining a highly focused beam of light …

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Nanoscale tech: Nanopore DNA sequencing status

DNA sequencing by passing a DNA strand through a “nanopore” to detect electrical changes as the strand of DNA is passed through it could speed up DNA sequencing more than 200 times. US physicists at the University of California, San Diego have made a detailed computer simulation of over 100,000 interacting atoms and shown theoretically …

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Nanoscale tech: Nanotopography alone can cause Stem cell differentiation

Stem cells can be prompted to develop into bone, instead of muscle or cartilage tissue, if they are grown on a substrate etched with nanoscopic patterns – and no added chemicals – researchers have found. The discovery could lead to longer-lasting artificial implants that are nano-engineered to encourage suitable tissue to develop around them, experts …

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