Jump to main content
Jump to site search


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

Author affiliations

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 signal. Moreover, the CSFITs based acoustic tweezers can be used for patterning cells/particles in various distributions and translating them along complex paths. We believe that our design is valuable for cellular-scale biological applications, in which on-chip, contactless, biocompatible handling of bioparticles is needed.

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

Back to tab navigation

Supplementary files

Article information


Submitted
13 Nov 2019
Accepted
24 Jan 2020
First published
03 Feb 2020

Lab Chip, 2020, Advance Article
Article type
Paper

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

P. Kang, Z. Tian, S. Yang, W. Yu, H. Zhu, H. Bachman, S. Zhao, P. Zhang, Z. Wang, R. Zhong and T. J. Huang, Lab Chip, 2020, Advance Article , DOI: 10.1039/C9LC01124B

Social activity

Search articles by author

Spotlight

Advertisements