Bi-directional transportation of micro-agents induced by symmetry-broken acoustic streaming

S. Mohanty (Corresponding Author), U. Siciliani de Cumis, Miguel Solsona, S. Misra (Corresponding Author)

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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.
Original languageEnglish
Article number 35352
Number of pages5
JournalAIP advances
Volume9
Issue number3
DOIs
Publication statusPublished - 29 Mar 2019

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acoustic streaming
broken symmetry
acoustic frequencies
microchannels
actuation
fluid flow
boundary layers
drugs
vibration
nanoparticles
microstructure
fluids

Cite this

Mohanty, S. ; Siciliani de Cumis, U. ; Solsona, Miguel ; Misra, S. / Bi-directional transportation of micro-agents induced by symmetry-broken acoustic streaming. In: AIP advances. 2019 ; Vol. 9, No. 3.
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Bi-directional transportation of micro-agents induced by symmetry-broken acoustic streaming. / Mohanty, S. (Corresponding Author); Siciliani de Cumis, U.; Solsona, Miguel ; Misra, S. (Corresponding Author).

In: AIP advances, Vol. 9, No. 3, 35352, 29.03.2019.

Research output: Contribution to journalArticleAcademicpeer-review

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