Acoustic tweezers based on circular, slanted-finger interdigital transducers for dynamic manipulation of micro-objects.

ABSTRACT: Acoustic tweezing technologies are gaining significant attention from the scientific communities due to their versatility and biocompatibility. This study presents acoustic tweezers based on circular, slanted-finger interdigital transducers (CSFITs), which can steer the propagation direction of surface acoustic waves (SAWs) by tuning the excitation frequency. The CSFITs based acoustic tweezers enable dynamic and reconfigurable manipulation of micro-objects using multi-tone excitation signals. Compared to traditional interdigital transducers that generate and control SAWs along one axis, the CSFITs allow for simultaneously generating and independently controlling SAWs propagating along multiple axes by changing the frequency composition and the phase information in a multi-tone excitation s

SUBMITTER: Kang P 

PROVIDER: S-EPMC7182351 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature