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:
Dec. 23, 2025
Filed:
Oct. 18, 2021
Fudan University, Shanghai, CN;
FUDAN UNIVERSITY, Shanghai, CN;
Abstract
The invention discloses an apparatus and a method for capturing and manipulating particles, relating to the field of acoustic manipulation. In view of the problems in the prior art that can't achieve a contactless, versatile, selective, and universal manipulation method for particles, the present application provides photoacoustic tweezers, which uses a photoacoustic transducer unit and an electroacoustic transducer unit to form a bimodal transducer, generates a weak acoustic wave and strong acoustic wave respectively through signal excitation. The strong acoustic wave behaving as a gain medium, amplifies the acoustic radiation force of the weak acoustic wave. The invention enables contactless and label-free selective capture and manipulation of particles. Further, the amplified acoustic radiation force enhances biocompatibility by requiring lower optical powers than alternative optical methods.