Penn State engineers have used a "white-light laser" to produce a new type of optical "tweezers" that not only traps, holds and moves microscopic objects but also can perform ...
Optical tweezers use light to manipulate microscopic objects as small as a single atom. The radiation pressure from a focused laser beam is able to trap small particles. In the biological sciences, ...
BUFFALO, N.Y. -- Piero Bianco produces movies. Not films that chronicle the human condition, a la Hollywood. His subject is human biology at its most basic -- the translocation and unwinding of DNA by ...
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