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Title: Optofluidic microengine in a dynamic flow environment via self-induced back-action
Authors: Shi, Yuzhi
Zhu, Tongtong
Nguyen, Kim Truc
Zhang, Yi
Xiong, Sha
Yap, Peng Huat
Ser, Wee
Wang, Shubo
Qiu, Cheng-Wei
Chan, C. T.
Liu, Ai Qun
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2020
Source: Shi, Y., Zhu, T., Nguyen, K. T., Zhang, Y., Xiong, S., Yap, P. H., Ser, W., Wang, S., Qiu, C., Chan, C. T. & Liu, A. Q. (2020). Optofluidic microengine in a dynamic flow environment via self-induced back-action. ACS Photonics, 7(6), 1500-1507.
Journal: ACS Photonics
Abstract: Most existing optofluidic particle engines only operate in a static environment. Here, we present a four-energy-state optofluidic microengine that operates stably in a dynamic flow environment, a function unattainable by existing systems due to the disturbance of the fluidic drag force. This microengine is powered synergistically by both the optical force and fluidic drag force, and it exploits the intriguing behavior of the particle in an asymmetric two-dimensional light interference pattern under the self-induced back-action (SIBA) effect. The mechanism of the microengine is studied in detail, and a microengine comprising a single cell and a cell-particle complex has been demonstrated. Our optofluidic microengine is the first of its kind to operate in the dynamic flow environment, and it provides a new platform to study single cell dynamics and cell-particle or cell-cell interactions in the dynamic fluidic environment.
ISSN: 1251-1505
DOI: 10.1021/acsphotonics.0c00295
Schools: School of Electrical and Electronic Engineering 
School of Mechanical and Aerospace Engineering 
Lee Kong Chian School of Medicine (LKCMedicine) 
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Photonics, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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