Laser tweezers grab nano bits

New method uses laser light to hold and move virus-sized particles

By Stephen Ornes, 17:57 PM March 17, 2014

Romain Quidant's new tweezers are useless for pulling out splinters. But they will grab and move about plastic beads that measure just billionths of a meter across. The device that he and his coworkers built uses laser light to manipulate objects that are notoriously hard to control — such as viruses and proteins.

 

“You could put these particles exactly where you want them,” Phil Jones told Science News. Jones is a physicist at University College London who studies the properties of light. He ...

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