Scientists create a ‘tractor beam’

By | April 13, 2006

Scientists create a tractor beam

Oak Ridge, Tenn., scientists are using a beam of light, similar to “Star Trek’s” tractor beams, to trap protein molecules and make them dance in space. … The technique — called photoelectrophoretic localization and transport — involves shining a highly focused beam of light on semiconductor material and using electric fields to move the proteins. Force-field traps are created by a photocurrent focused at the illuminated areas of the semiconductor.

“It’s kind of like a tractor beam in ‘Star Trek,’ but this is science, not science fiction,” said Nathan Lewis, a Caltech professor and co-author of the study.” – sciday

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