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Xu M, Vidler C, Wang J, Chen X, Pan Z, Harley WS, Lee PVS, Collins DJ. Micro-Acoustic Holograms for Detachable Microfluidic Devices. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307529. [PMID: 38174594 DOI: 10.1002/smll.202307529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 11/24/2023] [Indexed: 01/05/2024]
Abstract
Acoustic microfluidic devices have advantages for diagnostic applications, therapeutic solutions, and fundamental research due to their contactless operation, simple design, and biocompatibility. However, most acoustofluidic approaches are limited to forming simple and fixed acoustic patterns, or have limited resolution. In this study,a detachable microfluidic device is demonstrated employing miniature acoustic holograms to create reconfigurable, flexible, and high-resolution acoustic fields in microfluidic channels, where the introduction of a solid coupling layer makes these holograms easy to fabricate and integrate. The application of this method to generate flexible acoustic fields, including shapes, characters, and arbitrarily rotated patterns, within microfluidic channels, is demonstrated.
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Affiliation(s)
- Mingxin Xu
- Department of Biomedical Engineering, University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - Callum Vidler
- Department of Biomedical Engineering, University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - Jizhen Wang
- Department of Biomedical Engineering, University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - Xi Chen
- Department of Biomedical Engineering, University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - Zijian Pan
- Department of Biomedical Engineering, University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - William S Harley
- Department of Biomedical Engineering, University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - Peter V S Lee
- Department of Biomedical Engineering, University of Melbourne, Melbourne, Victoria, 3010, Australia
- Graeme Clarke Institute, University of Melbourne, Parkville, Victoria, 3052, Australia
| | - David J Collins
- Department of Biomedical Engineering, University of Melbourne, Melbourne, Victoria, 3010, Australia
- Graeme Clarke Institute, University of Melbourne, Parkville, Victoria, 3052, Australia
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Zou HY, Ge Y, Zhao KQ, Lu YJ, Si QR, Yuan SQ, Chen H, Sun HX, Yang Y, Zhang B. Acoustic Metagrating Holograms. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2401738. [PMID: 38771624 DOI: 10.1002/adma.202401738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 05/07/2024] [Indexed: 05/22/2024]
Abstract
Metasurface holograms represent a common category of metasurface devices that utilize in-plane phase gradients to shape wavefronts, forming holographic images through the application of the generalized Snell's law (GSL). While conventional metasurfaces focus solely on phase gradients, metagratings, which incorporate higher-order wave diffraction, further expand the GSL's generality. Recent advances in certain acoustic metagratings demonstrate an updated GSL extension capable of reversing anomalous transmission and reflection, whose reversal is characterized by the parity of the number of wave propagation trips through the metagrating. However, the current extension of GSL remains limited to 1D metagratings, unable to access 2D holographic images in 3D spaces. Here, the GSL extension to 2D metagratings for manipulating waves within 3D spaces is investigated. Through this analysis, a series of acoustic metagrating holograms is experimentally demonstrated. These holographic images exhibit the unique ability to switch between transmission and reflection types independently. This study introduces an additional dimension to modern holography design and metasurface wavefront manipulation.
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Affiliation(s)
- Hong-Yu Zou
- Research Center of Fluid Machinery Engineering and Technology, School of Physics and Electronic Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Yong Ge
- Research Center of Fluid Machinery Engineering and Technology, School of Physics and Electronic Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Ke-Qi Zhao
- Research Center of Fluid Machinery Engineering and Technology, School of Physics and Electronic Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Yu-Jing Lu
- Research Center of Fluid Machinery Engineering and Technology, School of Physics and Electronic Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Qiao-Rui Si
- Research Center of Fluid Machinery Engineering and Technology, School of Physics and Electronic Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Shou-Qi Yuan
- Research Center of Fluid Machinery Engineering and Technology, School of Physics and Electronic Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Hongsheng Chen
- Interdisciplinary Center for Quantum Information, State Key Lab. of Modern Optical Instrumentation, College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, 310027, China
- ZJU-Hangzhou Global Science and Technology Innovation Center, Key Laboratory of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, ZJU-UIUC Institute, Zhejiang University, Hangzhou, 310027, China
| | - Hong-Xiang Sun
- Research Center of Fluid Machinery Engineering and Technology, School of Physics and Electronic Engineering, Jiangsu University, Zhenjiang, 212013, China
- State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Yihao Yang
- Research Center of Fluid Machinery Engineering and Technology, School of Physics and Electronic Engineering, Jiangsu University, Zhenjiang, 212013, China
- ZJU-Hangzhou Global Science and Technology Innovation Center, Key Laboratory of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, ZJU-UIUC Institute, Zhejiang University, Hangzhou, 310027, China
| | - Baile Zhang
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
- Centre for Disruptive Photonic Technologies, The Photonics Institute, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
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Harley WS, Kolesnik K, Heath DE, Collins DJ. Enhanced acoustic streaming effects via sharp-edged 3D microstructures. LAB ON A CHIP 2024; 24:1626-1635. [PMID: 38357759 DOI: 10.1039/d3lc00742a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Acoustofluidic micromanipulation is an important tool for biomedical research, where acoustic forces offer the ability to manipulate fluids, cells, and particles in a rapid, biocompatible, and contact-free manner. Of particular interest is the investigation of acoustically driven sharp edges, where high tip velocity magnitudes and strong acoustic potential gradients drive rapid motion. Whereas prior devices utilizing 2D sharp edges have demonstrated promise for micromanipulation activities, taking advantage of 3D structures has the potential to increase their performance and the range of manipulation activities. In this work, we investigate high-magnitude acoustic streaming fields in the vicinity of sharp-edged, sub-wavelength 3D microstructures. We numerically model and experimentally demonstrate this in fabricating parametrically configured 3D microstructures whose tip-angle and geometry influence acoustic streaming velocities and the complexity of streaming vortices, finding that the simulated and realized velocities and streaming patterns are both tunable and a function of microstructure shape. These sharp-edge interfaces hold promise for biomedical studies benefiting from precise and targeted micromanipulation.
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Affiliation(s)
- William S Harley
- Department of Biomedical Engineering, University of Melbourne, Melbourne, VIC 3010, Australia.
- Micro Nano Research Facility, RMIT University, Melbourne, Victoria 3000, Australia
- The Graeme Clark Institute, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Kirill Kolesnik
- Department of Biomedical Engineering, University of Melbourne, Melbourne, VIC 3010, Australia.
- The Graeme Clark Institute, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Daniel E Heath
- Department of Biomedical Engineering, University of Melbourne, Melbourne, VIC 3010, Australia.
- The Graeme Clark Institute, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - David J Collins
- Department of Biomedical Engineering, University of Melbourne, Melbourne, VIC 3010, Australia.
- The Graeme Clark Institute, The University of Melbourne, Parkville, VIC, 3010, Australia
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Xu M, Wang J, Harley WS, Lee PVS, Collins DJ. Programmable Acoustic Holography using Medium-Sound-Speed Modulation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2301489. [PMID: 37283454 PMCID: PMC10427405 DOI: 10.1002/advs.202301489] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 05/10/2023] [Indexed: 06/08/2023]
Abstract
Acoustic holography offers the ability to generate designed acoustic fields to manipulate microscale objects. However, the static nature or large aperture sizes of 3D printed acoustic holographic phase plates limits the ability to rapidly alter generated fields. In this work, a programmable acoustic holography approach is demonstrated by which multiple discrete or continuously variable acoustic targets can be created. Here, the holographic phase plate encodes multiple images, where the desired field is produced by modifying the sound speed of an intervening fluid media. Its flexibility is demonstrated in generating various acoustic patterns, including continuous line segments, discrete letters and numbers, using this method as a sound speed indicator and fluid identification tool. This programmable acoustic holography approach has the advantages of generating reconfigurable and designed acoustic fields, with broad potential in microfluidics, cell/tissue engineering, real-time sensing, and medical ultrasound.
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Affiliation(s)
- Mingxin Xu
- Department of Biomedical EngineeringUniversity of MelbourneMelbourneVictoria3010Australia
| | - Jizhen Wang
- Department of Biomedical EngineeringUniversity of MelbourneMelbourneVictoria3010Australia
| | - William S. Harley
- Department of Biomedical EngineeringUniversity of MelbourneMelbourneVictoria3010Australia
| | - Peter V. S. Lee
- Department of Biomedical EngineeringUniversity of MelbourneMelbourneVictoria3010Australia
- Graeme Clarke InstituteUniversity of MelbourneParkvilleVictoria3052Australia
| | - David J. Collins
- Department of Biomedical EngineeringUniversity of MelbourneMelbourneVictoria3010Australia
- Graeme Clarke InstituteUniversity of MelbourneParkvilleVictoria3052Australia
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