Acoustic Streaming-Induced Multimodal Locomotion of Bubble-Based Microrobots.

ABSTRACT: Acoustically-driven bubbles at the micron scale can generate strong microstreaming flows in its surrounding fluidic medium. The tunable acoustic streaming strength of oscillating microbubbles and the diversity of the generated flow patterns enable the design of fast-moving microrobots with multimodal locomotion suitable for biomedical applications. The acoustic microrobots holding two coupled microbubbles inside a rigid body are presented; trapped bubbles inside the L-shaped structure with different orifices generate various streaming flows, thus allowing multiple degrees of freedom in locomotion. The streaming pattern and mean streaming speed depend on the intensity and frequency of the acoustic wave, which can trigger four dominant locomotion modes in the microrobot, denoted as translati

SUBMITTER: Mahkam N 

PROVIDER: S-EPMC10724404 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature