![Scientists have found a way to use “optical tweezers” by employing lasers, a mirror and a light modulator to anchor a crystal in solution. The “tweezers” have made it possible to conduct X-ray diffraction measurements of a crystal suspended in solution.](https://sandbox4-www.anl.gov/sites/www/files/styles/article_teaser_16x9/public/2019-03/PNAS_cvr_Optical-Tweezers_web_1600x900.jpg?h=8abcec71&itok=8lVRLMWl)
Illinois
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