The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2025
Filed:
Oct. 18, 2021
Fudan University, Shanghai, CN;
FUDAN UNIVERSITY, Shanghai, CN;
Abstract
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 interference of the strong acoustic wave and the weak acoustic wave, an amplified trapping force is produced for achieving the trapping and manipulation of particles. The invention can manipulate several particles simultaneously in high throughput and particles of various sizes ranging from 1 μm to 1 mm. The invention can form reconfigurable acoustic fields which permits versatile and selective manipulation with no need of complicated acoustic arrays. The invention is a versatile, biocompatible, selective and high-throughput manipulation method.