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Bi-directional transportation of micro-agents induced by symmetry-broken acoustic streaming
oleh: Sumit Mohanty, Ugo Siciliani de Cumis, Miguel Solsona, Sarthak Misra
Format: | Article |
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Diterbitkan: | AIP Publishing LLC 2019-03-01 |
Deskripsi
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.