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Last updated on May 20, 2013 at 13:33 EDT
Polystyrene balls
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Polystyrene balls

May 7, 2010
Polystyrene balls, 100 nanometers in height, that have been lined up using a topographically-patterned poly (dimethylsiloxane) surface.

This work was supported by National Science Foundation grants CHE 98-16820 and PHY 01-03048.