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Time-sharing
The team uses a time-sharing approach, which it likens to someone spinning plates, to trap multiple particles simultaneously. The image on the top shows six 2.23 µm diameter beads held in the "before" geometry next to a lithographically fabricated line on a silicon wafer. The image on the bottom shows beads held using the optical trapping technique to spell out the letters M, I and T. Credit: Massachusetts Institute of Technology
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