A new device can turn sound waves into “sonic scalpels” for removing tumors and make them gentle enough to image organs, scientists say.
…scientists can adjust the solitary wave so that the emitted sound wave travels in a particular direction and at a given speed.”The goal was to create an acoustic lens that could achieve very high focal intensities and at the same time be able to control the focal position without having to change the structure of the lens itself,” Daraio said. Rapid-Fire Sound BulletsBy tweaking each chain of metal balls in the acoustic lens separately, a barrage of sound bullets can be made to converge onto a single spot.”We squeeze the outer chains of the lens more than the chains in the middle, and this causes the solitary waves to travel faster in the outer chains than in the inner ones,” ultimately releasing successive sound bullets, Daraio explained.In addition, changing certain parameters in the machine allows scientists to alter the intensity of the sound bullets: The emitted waves can be gentle enough to probe internal organs or powerful enough to serve as “sonic scalpels” for cleaving off tumors.As an imaging tool,…
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"Sound Bullets" To Zap Cancer?
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