Over the past several decades, researchers have been getting better and better at manipulating tiny particles with acoustic waves. Dubbed “acoustic tweezers,” the technology started with the simplistic trapping of particles and has since expanded to include the precise rotation and movement of cells and organisms in three dimensions.
These abilities make the technology well suited to address challenges in biological studies, medical diagnostics and therapeutics through the precise, dexterous, biocompatible manipulation of bioparticles.
In a new paper published in the journal Science Advances, engineers from Duke University demonstrate an entirely new approach to the technology using “ring resonators.” With the ability to carry out tasks with high precision while requiring much lower power inputs, the work could inspire a new generation of these devices.
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