10.18.2006

Nanospheres

http://www.sandia.gov/media/nanos.htm
The durable silica spheres, which range in size from 2 to 50 nanometers, form in a few seconds, are small enough to be introduced into the body, and have uniform pores that could enable controlled release of drugs. The spheres can absorb organic and inorganic substances including small particles of iron, which means they can be controlled by magnets and the contents released as needed. Lastly, the Sandia nanospheres may be useful as coatings on silicon chips whose increasingly tiny circuits require a medium that has a lower dielectric constant and stores less heat.
Mostly medical applications (micro electronics, environ friendly fuel- Hollow nanospheres crafted from molybdenum disulfide could serve as a superior catalyst for removing sulfur-containing compounds from gasoline and other fossil fuels.)
Nanofibers

(automotive, aeronautic, aerospace, engineering)

One of my favorite posts to WorldChanging has to be
Curing Cancer, from July, 2004. In brief, Rice University researchers found that flooding a tumor with gold nanospheres then illuminating the tumor with an infrared laser (through the skin, which remains undamaged) would result in the tumor being completely eliminated. Now Stanford University researchers have accomplished a very similar feat, this time using carbon nanotubes rather than gold nanospheres. The principle is the same: inundate the tumor with the material, illuminate the tumor with a low-power laser, cook the tumor into nonexistence without harming nearby healthy tissue.

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