“Nano-ear”: World’s smallest ear

A group from the University of Munich in Germany have developed the “world’s tiniest ear.” The “nano-ear” consists of a gold nanoparticle trapped within a laser beam and is able to detect sound a million times fainter than the human ear can. The nano-ear responds to acoustic vibrations to pick up sounds and can soon be used to detect sounds produced by microbes like viruses and bacteria. (Image from: Ohlinger et al.)
(Source Link: Medgadget)

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