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News in Brief: Highlights from the American Physical Society meeting
Science News ^ | March 25, 2013 | Science News Staff

Posted on 03/26/2013 1:17:40 AM PDT by neverdem

Nanocrystals slither through tiny tubes

Nothing can squeeze through tight spaces quite like a nanocrystal. Physicists watched a small iron crystal slide through a tube with an opening less than half the diameter of the crystal itself. The finding could lead to remotely controlled nanomachines that navigate through confined quarters.

Using an electric field, the researchers drove an iron crystal 12 nanometers in diameter through a carbon nanotube like a train in a tunnel. The surprise came when the tube constricted to 5 nanometers in diameter: The iron nanocrystal altered its shape and squeezed through. Microscope images showed that the iron remained a crystalline solid...

(Excerpt) Read more at sciencenews.org ...


TOPICS: Culture/Society; News/Current Events
KEYWORDS: carbonnanotubes; physics

1 posted on 03/26/2013 1:17:40 AM PDT by neverdem
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To: El Gato; Ernest_at_the_Beach; Robert A. Cook, PE; lepton; LadyDoc; jb6; tiamat; PGalt; Dianna; ...
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FReepmail me if you want on or off my health and science ping list.

2 posted on 03/26/2013 2:07:18 AM PDT by neverdem ( Xin loi min oi)
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To: neverdem

That iron crystal took a fantastic voyage.

I’m surprised the physicists on FR aren’t all over this one.


3 posted on 03/26/2013 9:30:12 AM PDT by TheOldLady
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