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Nanotubes That Can Change Color, Form "Nanocarpets," and Kill Bacteria |
| Section: NATURAL SCIENCE / SCIENCE AND SOCIETY |
| Author: Phil Berardelli |
| Publication: The world & I online |
| Issue Date: 1/1/2005 |
| Size: 752 Words, 5,155 Characters |
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University of Pittsburgh researchers have synthesized a simple molecule that not only produces perfectly uniform, self-assembled nanotubes but creates what they report as the first "nanocarpet," whereby these nanotubes organize themselves into an expanse of upright clusters that when magnified a million times resemble the fibers of a shag rug.
Moreover, unlike other nanotube structures, these tubes display sensitivity to different agents by changing color and can be trained to kill bacteria, such as E. coli, with just a jab to its cell membrane.
How a mere single-step synthesis of a hydrocarbon and a simple salt compound produced ...
. . .
...he unpolymerized nanotube structures were effective antimicrobials, completely killing all the E. coli within an hour's time. "We are very encouraged by these results and we will be continuing our investigations of this novel material in collaboration with our colleagues here at the University of Pittsburgh and the U.S. Army Research Office," added Russell.
© 2004 United Press International
(656 of 5,155 characters)
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