Bi-directional transportation of micro-agents induced by symmetry-broken acoustic streaming
Source abstract
Abstract
We show that vibrating protrusions inside a microchannel are capable of steering fluid away from their relative orientation. This phenomenon is brought forth by symmetry-broken design of these protrusions. Vibration of these asymmetric protrusions is reciprocated in the streaming effect at the boundary layers of the channel thus inducing a net fluid flow. Additionally, we show that the flow direction is sensitive to switching acoustic frequencies. This acoustically-induced flow has the potential for transportation of nanoparticles as well as complex micro-structures. We hereby demonstrate this utility for contactless actuation of flagellar micro-agents as a foreground towards targeted drug release.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Microfluidic and Bio-sensing Technologies · Micro and Nano Robotics · Microfluidic and Capillary Electrophoresis Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Surgical Robotics Laboratory, Department of Biomechanical Engineering, University of Twente 1 , 7522NB Enschede, The Netherlands
BIOS Lab-on-a-chip, University of Twente 2 , 7522NH Enschede, The Netherlands
Surgical Robotics Laboratory, Department of Biomedical Engineering, University Medical Centre Groningen, University of Groningen 3 , 9713 AV Groningen, The Netherlands
Funding
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
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