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U.S., Chinese scientists build nanorobot
New York (UPI) Feb 16, 2009 U.S. and Chinese scientists say they've created a two-armed nanorobot that can manipulate molecules within a device built from DNA. Researchers at New York University and China's Nanjing University said the programmable unit allows researchers to capture and maneuver patterns on a scale that is unprecedented. New York University Professor Nadrian Seeman, one of the study's co-authors, said the two-armed nanorobotic device enables the creation of new DNA structures, thereby potentially serving as a factory for assembling the building blocks of new materials. With that capability, it has the potential to develop new synthetic fibers, advance the encryption of information and improve DNA-scaffolded computer assembly, he said. In the two-armed nanorobotic device, the arms face each other, ready to capture molecules that make up a DNA sequence. Using set strands that bind to its molecules, the arms are then able to change the structure of the device. This changes the sticky ends available to capture a new pattern component. The researchers said their device performs with 100 percent accuracy, as confirmed by atomic force microscopy that permits features a few billionths of a meter to be visualized. The research that included Nanjing Professor Shou-Jun Xiao and graduate students Hongzhou Gu and Jie Chao, is reported in the journal Nature Nanotechnology. Share This Article With Planet Earth
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NASA And Caltech Test Steep-Terrain Rover
Pasadena CA (SPX) Feb 06, 2009Engineers from NASA's Jet Propulsion Laboratory and students at the California Institute of Technology have designed and tested a versatile, low-mass robot that can rappel off cliffs, travel nimbly over steep and rocky terrain, and explore deep craters. |
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