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Nanotubes are rolled up sheets of carbon atoms measuring just one atom thick. These single-wall tubes are unusually sensitive to nearby molecules, researchers say. At Stanford University, scientists discovered that a carbon nanotube network can detect the presence of underwater toxins or explosions. Mark Roberts, a postdoctoral researcher at Sandia National Laboratories explains, “By combining our nanotube self-sorting deposition process with our ultra thin, cross-linked polymer dielectric [insulator] formulation, we’ve enabled underwater, nanotube-based chemical sensors.” This is just one of the exciting studies being done.

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It has been generally presumed that the nanoparticle only really shines when it is alone. Larger bundles change properties, researchers concluded. However, the new nanotubes made of carbon appear to have the same abilities as the single tubes, as well as increased strength to boot! These nano sheets can withstand extreme sunlight and radiation exposure and extreme temperatures. The sheets are highly susceptible to manipulation by electrical current, heat and light. This may all sound rather obtuse, but Baughman believes they can use these sheets of nanomaterials to create artificial human muscle fibers to use in prosthetic limbs, humanoid robots and flying animal simulators.

Nanotubes are incredibly small, versatile and responsive to the molecules surrounding them. As a result, scientists are curious to see how they may be able to sense toxins and treat chemical spills. They want to see how nanotubes can be used medically to detect, identify and treat life-threatening diseases. They want to examine how the carbon nanotube and the inorganic nanotube can be used to create stronger industrial materials and longer lasting energy cells. The possibilities are limitless, but it’s important that the proper protocol is followed, that tests are conducted and that it is safe to work with such tiny and powerful particles.

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