Ring of Laser Light Can Individually Count Viruses and Nanoparticles

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Researchers at Washington University in St. Louis have turned an acoustic phenomenon familiar to those who have visited the Statuary Hall in the U.S. Capitol Building or St. Paul’s Cathedral in London into a high-resolution nanoparticle detector. Using a ring-shaped micro-laser, the sensor can detect and count individual viruses or synthetic and biological nanoparticles with single particle resolution. Read more here

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Naveen Jain