'Two-Faced' Particles Act Like Tiny Submarines
U.S. Newswire, February, 2008
To: SCIENCE EDITORS
Contact: Mick Kulikowski, News Services, North Carolina State University, 1-919-515-3470, or mick_kulikowski@ncsu.edu
RALEIGH, N.C., Feb. 29 /PRNewswire-USNewswire/ -- For the first time, researchers at North Carolina State University have demonstrated that microscopic "two-faced" spheres whose halves are physically or chemically different -- so-called Janus particles -- will move like stealthy submarines when an alternating electrical field is applied to liquid surrounding the particles.
A paper describing the research, published in the Feb. 8, 2008, edition of Physical Review Letters, advances knowledge about how potential "smart" materials -- think of tiny engines or sensors -- can move around and respond to changes in their environment....
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