We present the acoustophoretic motion of microparticles simultaneously driven by the acoustic streaming induced drag force (ASF) and acoustic radiation force (ARF) on a phononic crystal plate (PCP). A much faster acoustophoresis can be achieved via a PCP than a traditional standing wave in bulk and surface acoustic wave devices. The mechanism is attributed to the significantly enhanced ASF and ARF originating from the resonant excitation of a nonleaky zero-order antisymmetric Lamb mode intrinsically in the plate, which generates the highly localized field vertical to the surface and periodic field parallel to the surface. We also demonstrate the transition from the ASF dominated acoustophoresis to ARF dominated acoustophoresis as a function of particle size. The predicted trajectories and velocity of acoustophoretic particles by the proposed finite element model are in reasonable agreement with experimental phenomena. This study would aid the development of simple, scalable, integrated, and disposable phononic crystal based acoustofluidic systems for biomedical applications such as rapid mixing, cell trapping, sorting, and patterning.
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22 October 2018
Research Article|
October 26 2018
Rapid acoustophoretic motion of microparticles manipulated by phononic crystals
Special Collection:
Acoustic Tweezers
Fei Li;
Fei Li
a)
1
Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences
, Shenzhen 518055, China
2
Shenzhen Key Laboratory of Ultrasound Imaging and Therapy
, Shenzhen 518055, China
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Yang Xiao;
Yang Xiao
a)
1
Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences
, Shenzhen 518055, China
2
Shenzhen Key Laboratory of Ultrasound Imaging and Therapy
, Shenzhen 518055, China
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Junjun Lei
;
Junjun Lei
3
School of Electromechanical Engineering, Guangdong University of Technology
, Guangzhou, 510006, China
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Xiangxiang Xia;
Xiangxiang Xia
1
Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences
, Shenzhen 518055, China
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Wei Zhou;
Wei Zhou
1
Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences
, Shenzhen 518055, China
2
Shenzhen Key Laboratory of Ultrasound Imaging and Therapy
, Shenzhen 518055, China
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Long Meng;
Long Meng
1
Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences
, Shenzhen 518055, China
2
Shenzhen Key Laboratory of Ultrasound Imaging and Therapy
, Shenzhen 518055, China
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Lili Niu;
Lili Niu
1
Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences
, Shenzhen 518055, China
2
Shenzhen Key Laboratory of Ultrasound Imaging and Therapy
, Shenzhen 518055, China
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Junru Wu;
Junru Wu
4
Department of Physics, University of Vermont
, Burlington, Vermont 05405, USA
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Jiangyu Li;
Jiangyu Li
5
Shenzhen Key Laboratory of Nanobiomechanics, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences
, Shenzhen 518055, China
6
Department of Mechanical Engineering, University of Washington
, Seattle, Washington 98195, USA
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Feiyan Cai;
Feiyan Cai
b)
1
Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences
, Shenzhen 518055, China
2
Shenzhen Key Laboratory of Ultrasound Imaging and Therapy
, Shenzhen 518055, China
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Hairong Zheng
Hairong Zheng
b)
1
Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences
, Shenzhen 518055, China
2
Shenzhen Key Laboratory of Ultrasound Imaging and Therapy
, Shenzhen 518055, China
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a)
F. Li and Y. Xiao contributed equally to this work.
Appl. Phys. Lett. 113, 173503 (2018)
Article history
Received:
August 14 2018
Accepted:
October 09 2018
Citation
Fei Li, Yang Xiao, Junjun Lei, Xiangxiang Xia, Wei Zhou, Long Meng, Lili Niu, Junru Wu, Jiangyu Li, Feiyan Cai, Hairong Zheng; Rapid acoustophoretic motion of microparticles manipulated by phononic crystals. Appl. Phys. Lett. 22 October 2018; 113 (17): 173503. https://doi.org/10.1063/1.5052045
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