Robust global arrangement by coherent enhancement in Huygens-Fresnel traveling surface acoustic wave interference field.

Nanxin Yu, Wenping Geng, Yukai Liu, Huiyi Zhang, Hao Lu, Zhigang Duan, Lingxiao Yang, Yichi Zhang, Xiujian Chou

Abstract read

In one paragraph

Article in Analytical and bioanalytical chemistry, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

9 authors.

Nanxin YuKey Laboratory of National Defense Science and Technology On Electronic Measurement, School of Semiconductor and Physics, North University of China, Taiyuan, 030051, China.

Wenping GengKey Laboratory of National Defense Science and Technology On Electronic Measurement, School of Semiconductor and Physics, North University of China, Taiyuan, 030051, China. wenpinggeng@nuc.edu.cn.

Yukai LiuKey Laboratory of National Defense Science and Technology On Electronic Measurement, School of Semiconductor and Physics, North University of China, Taiyuan, 030051, China.

Huiyi ZhangKey Laboratory of National Defense Science and Technology On Electronic Measurement, School of Instrument and Electronics, North University of China, Taiyuan, 030051, China.

Hao LuKey Laboratory of National Defense Science and Technology On Electronic Measurement, School of Semiconductor and Physics, North University of China, Taiyuan, 030051, China.

Zhigang DuanKey Laboratory of National Defense Science and Technology On Electronic Measurement, School of Semiconductor and Physics, North University of China, Taiyuan, 030051, China.

Lingxiao YangKey Laboratory of National Defense Science and Technology On Electronic Measurement, School of Semiconductor and Physics, North University of China, Taiyuan, 030051, China.

Yichi ZhangKey Laboratory of National Defense Science and Technology On Electronic Measurement, School of Semiconductor and Physics, North University of China, Taiyuan, 030051, China.

Xiujian ChouKey Laboratory of National Defense Science and Technology On Electronic Measurement, School of Instrument and Electronics, North University of China, Taiyuan, 030051, China.

Funding

Fundamental Research Program of Shanxi Province 202203021222068Fundamental Research Program of Shanxi Province 202203021223005Fund Program for the Scientific Activities of Selected Returned Overseas Professionals in Shanxi Province 20230015The Central Guidance on Local Science and Technology Development Fund of Shanxi Province YDZJSX20231A028the National Natural Science Foundation of China 62171415

6 · The paper itself

Abstract

The application of standing surface acoustic wave (SSAW) tweezers based on backpropagation superposition to achieve precise behavior manipulation of microscale cells and even nanoscale bacteria has been widely studied and industrialized. However, the structure requires multiple transducer components or full channel resonance. It is very challenging to design a simple structure for nano-control by complex acoustic field. In this study, a reflector-interdigital transducer (R-IDT) acoustofluidic device based on unilateral coherence enhancement is proposed to achieve SSAW definition features of periodic particle capture positions. The SAW device based on a unilateral transducer can not only generate leaky-SAW in water-filled microchannel, but also have a contribution of spherical waves in the vibration area of the substrate-liquid interface due to the Huygens-Fresnel diffractive principle. Both of them form a robust time-averaged spatial periodicity in the pressure potential gradient, accurately predicting the lateral spacing of these positions through acoustic patterning methods. Furthermore, a reflector based on Bragg-reflection is used to suppress backward transmitted SAW and enhance forward conducted SAW beams. By using a finite element model, R-IDT structure's amplitude enhances 60.78% compared to single IDT structure. The particle manipulation range of the diffractive acoustic field greatly improves, verified by experimental polystyrene microspheres. Besides, biocompatibility is conformed through red blood cells and Bacillus subtilis. We investigate the overall shift of periodic pressure field that can still occur when the phase changes. This work provides a simpler and low-cost solution for the application of acoustic tweezer in biological cell culture and filtering.

Indexed as

AcoustofluidicBragg-reflectionDiffractive SAWHuygens-Fresnel

Identifiers

PMID37989848

DOI10.1109/JSEN.2021.3066345

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