ALEXANDRIA, Va., June 16 -- United States Patent no. 12,303,900, issued on May 20, was assigned to FUDAN UNIVERSITY (Shanghai).
"Photoacoustic tweezers" was invented by Antoine Jean-Pierre Rene Riaud (Shanghai), Qing Wang (Shanghai) and Jia Zhou (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention discloses a method and an apparatus for trapping and manipulating particles, relating to the field of acoustic manipulation. The invention discloses a photoacoustic tweezers, which use bimodal transducer generate a weak acoustic wave and a strong acoustic wave. The strong acoustic wave behaves as an effective gain medium to amplify the acoustic radiation force of this weak acoustic wave. After an ...