January 24, 2010
Nanotubes Science
How can something as small as nanotubes do so much? This is the question being asked across America as researchers look at nanotechnology applications for single atoms of carbon that can be combined with other particles to act as sensors, repairers, barrier strengtheners and electric conductors. The possibilities are limitless as we embark upon the new field of nanoscience. Started in 1989, there is still much to learn about how the nano-particles work, as well as the long-term risks of exposure to these atoms and molecules.
There are many potential nanotechnology applications for these new strong sheets of nanotubes, Baughman says. One thought is that they can create artificial muscle material, which can move and function fluidly. They are also looking at the possibility of using a nano sheet in sensor lights or headlights. Solar cells for electric vehicles and electronic surfaces can also work with carbon nano-tubes. The space elevator is another futuristic device making use of the nanotube. In addition to civilian product uses, the military has a need for such strong materials. "Devices that are required in many of the Air Force missions are somewhat different from commercial ones in the sense that they are often exposed to harsh environments while maintaining their maximum performance," said Dr. Jiwoong Park, a researcher at Cornell University. "Carbon-based nano-structures, including carbon tubes and graphenes (thin layers of graphite) present many exciting properties that may lead to new device structures."
In the future, researchers believe that nanotubes may be able to help electronic devices repair their own circuitry. University of Illinois at Urbana-Champaign scientists says that a crack in the circuitry could trigger capsules of carbon tubes that will effectively bridge the gap. The real benefit would likely not be seen in laptops, cell phones or iPods so much as submarines, satellites and space shuttle systems. PopSci Magazine reports other "self-healing" materials on the horizon may include rubber, concrete and paint.
Beth Kaminski is the co-author of Curing Your Anxiety And Panic Attacks which detailed anxiety therapy as well as tips on the various medications for panic disorder available at anxietydisordercure.com.
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