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Naucnici sa Univerziteta u Micigenu stvorili su tehnologiju kojom ce se lekovi moci aktivirati 'na daljinski', kada dospeju u deo tela za koji su zaduzeni.
Remote Control Drug Delivery Possible
Tiny remote-controlled tubes might someday let doctors deliver potent drugs to the exact spots in the body where they are most needed. The nanotubes, which are typically about 100 nanometers long, or one ten-millionth of an inch, are made from a special polymer that conducts electricity.
The nanotubes are built by first layering a mixture of a drug and fibers of a polymer that breaks down in the body onto the tip of a tiny gold electrode, a type of medical probe that can transmit or receive electrical signals. Then the coated electrode is placed in a solution that contains another type of polymer, the one that conducts electricity.
Finally an electrical current is applied to the solution, causing the conductive polymer to form tubes around the drug-and-fiber mixture, like microscopic cannoli.
"So now what you can do is control the release of the drugs out from the inside of these little tubes because these conducting polymers can be actuated," David Martin, a professor of materials science and engineering at the University of Michigan, told LiveScience.
Izvor i ostatak vesti: http://www.livescience.com/humanbiology/060310_nano_remote.html
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