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Optical Tweezers Bring Major Discoveries Within Grasp

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In recent years, optical tweezers have generated remarkable interest in research areas outside of fundamental physics, including biochemistry, biology and medicine. Modern tweezer designs enable researchers from all disciplines to benefit from the advantages of this technique.

VITALIY OLIYNYK, PHILIPP RAUCH AND STEFAN B. KAEMMER, JPK INSTRUMENTS

Optical tweezers offer a noninvasive experimental method to trap, track and manipulate microscopic objects ranging from several tens of micrometers to tens of nanometers in size. The trapped particles can be accurately measured and manipulated with high temporal, spatial and force resolution. Experiments can show spatial resolution in the nanometer range while obtaining force data with piconewton resolution on a millisecond timescale. The basic physical phenomenon underlying optical tweezers is the momentum transfer of light, when it collides with matter. Due to the noninvasive nature and the...Read full article

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