1
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Wang Y, Li X, Meng H, Tao R, Qian J, Fu C, Luo J, Xie J, Fu Y. Acoustofluidic Diversity Achieved by Multiple Modes of Acoustic Waves Generated on Piezoelectric-Film-Coated Aluminum Sheets. ACS APPLIED MATERIALS & INTERFACES 2024; 16:45119-45130. [PMID: 39143893 DOI: 10.1021/acsami.4c06480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
Excitation of multiple acoustic wave modes on a single chip is beneficial to implement diversified acoustofluidic functions. Conventional acoustic wave devices made of bulk LiNbO3 substrates generally generate few acoustic wave modes once the crystal-cut and electrode pattern are defined, limiting the realization of acoustofluidic diversity. In this paper, we demonstrated diversity of acoustofluidic behaviors using multiple modes of acoustic waves generated on piezoelectric-thin-film-coated aluminum sheets. Multiple acoustic wave modes were excited by varying the ratios between IDT pitch/wavelength and substrate thickness. Through systematic investigation of fluidic actuation behaviors and performances using these acoustic wave modes, we demonstrated fluidic actuation diversities using various acoustic wave modes and showed that the Rayleigh mode, pseudo-Rayleigh mode, and A0 mode of Lamb wave generally have better fluidic actuation performance than those of Sezawa mode and higher-order modes of Lamb wave, providing guidance for high-performance acoustofluidic actuation platform design. Additionally, we demonstrated diversified particle patterning functions, either on two sides of acoustic wave device or on a glass sheet by coupling acoustic waves into the glass using the gel. The pattern formation mechanisms were investigated through finite element simulations of acoustic pressure fields under different experimental configurations.
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Affiliation(s)
- Yong Wang
- Department of Mechanical Engineering, Hangzhou City University, Hangzhou 310015, China
- The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
- Faculty of Engineering and Environment, University of Northumbria, Newcastle upon Tyne NE1 8ST, United Kingdom
| | - Xianbin Li
- Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, Hefei 230009, China
| | - Hui Meng
- Department of Mechanical Engineering, Hangzhou City University, Hangzhou 310015, China
| | - Ran Tao
- Faculty of Engineering and Environment, University of Northumbria, Newcastle upon Tyne NE1 8ST, United Kingdom
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Optoelectronic Engineering, Shenzhen University Shenzhen 518060, China
| | - Jingui Qian
- Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, Hefei 230009, China
| | - Chen Fu
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Optoelectronic Engineering, Shenzhen University Shenzhen 518060, China
| | - Jingting Luo
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Optoelectronic Engineering, Shenzhen University Shenzhen 518060, China
| | - Jin Xie
- The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
| | - Yongqing Fu
- Faculty of Engineering and Environment, University of Northumbria, Newcastle upon Tyne NE1 8ST, United Kingdom
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2
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Tian Y, Chen J, Yan Z, Xie J, Jiang X, Li G, Huang G. Numerical modeling of ultrasound-triggered microneedle-mediated delivery of drug particles into bacterial biofilms. ULTRASONICS 2024; 141:107344. [PMID: 38772060 DOI: 10.1016/j.ultras.2024.107344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 04/18/2024] [Accepted: 05/10/2024] [Indexed: 05/23/2024]
Abstract
Ultrasonic microneedle patches, a class of ultrasound-driven transdermal drug delivery systems, are promising in addressing bacterial biofilms. This device has been proven to be more effective in treating Staphylococcus aureus biofilms than drug in free solution. However, there exists a notable gap in understanding how various excitation conditions and material parameters affect drug delivery efficiency. This study aims to fill this void by conducting an comprehensive multi-physics numerical analysis of ultrasonic microneedle patches, with the ultimate goal of enhancing drug delivery. First, we investigate the impact of various ultrasound frequencies on drug penetration depths. The findings reveal that local resonance can accelerate drug release within a shorter time window (first 1.5 h), whereas non-resonant frequencies enable more profound and prolonged diffusion. This information is crucial for medical professionals in selecting the most effective frequency for optimal drug administration. Furthermore, our investigation extends to the effects of applied voltage on temperature distribution, a critical aspect for ensuring medical safety during the application of these patches. Additionally, we examine how particles of different sizes respond to acoustic pressure and streaming fields, providing valuable insights for tailoring drug delivery strategies to specific therapeutic needs. Overall, our findings offer comprehensive guidelines for the effective use of ultrasonic microneedle patches, potentially shifting the paradigm in patient care and enhancing the overall quality of life.
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Affiliation(s)
- Yiran Tian
- Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211, USA
| | - Jiaji Chen
- Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211, USA
| | - Zheng Yan
- Department of Chemical and Biomedical Engineering, University of Missouri, Columbia, MO 65211, USA
| | - Jingwei Xie
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Xiaoning Jiang
- Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC 27695, USA
| | - Guangfu Li
- Department of Molecular Microbiology and Immunology, University of Missouri, Columbia, MO 65212, USA
| | - Guoliang Huang
- Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211, USA.
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3
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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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4
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Vachon P, Merugu S, Sharma J, Lal A, Ng EJ, Koh Y, Lee JEY, Lee C. Cavity-agnostic acoustofluidic manipulations enabled by guided flexural waves on a membrane acoustic waveguide actuator. MICROSYSTEMS & NANOENGINEERING 2024; 10:33. [PMID: 38463549 PMCID: PMC10920796 DOI: 10.1038/s41378-023-00643-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 11/09/2023] [Accepted: 12/04/2023] [Indexed: 03/12/2024]
Abstract
This article presents an in-depth exploration of the acoustofluidic capabilities of guided flexural waves (GFWs) generated by a membrane acoustic waveguide actuator (MAWA). By harnessing the potential of GFWs, cavity-agnostic advanced particle manipulation functions are achieved, unlocking new avenues for microfluidic systems and lab-on-a-chip development. The localized acoustofluidic effects of GFWs arising from the evanescent nature of the acoustic fields they induce inside a liquid medium are numerically investigated to highlight their unique and promising characteristics. Unlike traditional acoustofluidic technologies, the GFWs propagating on the MAWA's membrane waveguide allow for cavity-agnostic particle manipulation, irrespective of the resonant properties of the fluidic chamber. Moreover, the acoustofluidic functions enabled by the device depend on the flexural mode populating the active region of the membrane waveguide. Experimental demonstrations using two types of particles include in-sessile-droplet particle transport, mixing, and spatial separation based on particle diameter, along with streaming-induced counter-flow virtual channel generation in microfluidic PDMS channels. These experiments emphasize the versatility and potential applications of the MAWA as a microfluidic platform targeted at lab-on-a-chip development and showcase the MAWA's compatibility with existing microfluidic systems.
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Affiliation(s)
- Philippe Vachon
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
- Institute of Microelectronics, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Srinivas Merugu
- Institute of Microelectronics, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Jaibir Sharma
- Institute of Microelectronics, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Amit Lal
- Institute of Microelectronics, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- SonicMEMS Laboratory, School of Electrical and Computer Engineering, Cornell University, Ithaca, NY USA
| | - Eldwin J. Ng
- Institute of Microelectronics, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Yul Koh
- Institute of Microelectronics, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Joshua E.-Y. Lee
- Institute of Microelectronics, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- School of Electrical and Data Engineering, University of Technology Sydney, Ultimo, NSW Australia
| | - Chengkuo Lee
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
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5
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Kolesnik K, Rajagopal V, Collins DJ. Optimizing coupling layer and superstrate thickness in attachable acoustofluidic devices. ULTRASONICS 2024; 137:107202. [PMID: 37979521 DOI: 10.1016/j.ultras.2023.107202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/20/2023] [Accepted: 11/11/2023] [Indexed: 11/20/2023]
Abstract
Superstrate-based acoustofluidic devices, where the fluidic elements are reversibly coupled to a transducer rather than bonded to it, offer advantages for cost, interchangeability and preventing contamination between samples. A variety of coupling materials can be used to transmit acoustic energies into attachable superstrates, though the dimensions and material composition of the system elements are not typically optimized. This work analyzes these coupling layers for bulk wavefront transmission, including water, ultrasound gel and polydimethylsiloxane (PDMS), as well as the material makeup and thickness of the superstrate component, which is commonly comprised of glass, quartz or silicon. Our results highlight the importance of coupling layer and superstrate dimensions, identifying frequencies and component thicknesses that maximize transmission efficiency. Our results indicate that superstrate thicknesses 0.55 times the acoustic wavelength result in maximal acoustic coupling. While various coupling layers and superstrate materials are capable of similar acoustic energy transmission, the inherent dimensional stability of the PDMS coupling layers, somewhat less common in superstrate work compared to liquid-based agents, presents advantages for practically maximizing acoustic efficiency.
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Affiliation(s)
- Kirill Kolesnik
- Department of Biomedical Engineering, University of Melbourne, Melbourne, VIC 3010, Australia
| | - Vijay Rajagopal
- Department of Biomedical Engineering, University of Melbourne, Melbourne, 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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6
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Wang Q, Maramizonouz S, Stringer Martin M, Zhang J, Ong HL, Liu Q, Yang X, Rahmati M, Torun H, Ng WP, Wu Q, Binns R, Fu Y. Acoustofluidic patterning in glass capillaries using travelling acoustic waves based on thin film flexible platform. ULTRASONICS 2024; 136:107149. [PMID: 37703751 DOI: 10.1016/j.ultras.2023.107149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 08/30/2023] [Accepted: 08/31/2023] [Indexed: 09/15/2023]
Abstract
Surface acoustic wave (SAW) technology has been widely used to manipulate microparticles and biological species, based on acoustic radiation force (ARF) and drag force induced by acoustic streaming, either by standing SAWs (SSAWs) or travelling SAWs (TSAWs). These acoustofluidic patterning functions can be achieved within a polymer chamber or a glass capillary with various cross-sections positioned along the wave propagating paths. In this paper, we demonstrated that microparticles can be aligned, patterned, and concentrated within both circular and rectangular glass capillaries using TSAWs based on a piezoelectric thin film acoustic wave platform. The glass capillary was placed at different angles along with the interdigital transducer directions. We systematically investigated effects of tilting angles and wave characteristics using numerical simulations in both circular and square shaped capillaries, and the patterning mechanisms were discussed and compared with those agitated under the SSAWs. We then experimentally verified the particle patterns within different glass capillaries using thin film ZnO SAW devices on aluminum (Al) sheets. Results show that the propagating SAWs can generate acoustic pressures and patterns in the fluid due to the diffractive effects, drag forces and ARF, as functions of the SAW device's resonant frequency and tilting angle. We demonstrated potential applications using this multiplexing, integrated, and flexible thin film-based platform, including patterning particles (1) inside multiple and successively positioned circular tubes; (2) inside a solidified hydrogel in the glass capillary; and (3) by wrapping a flexible ZnO/Al SAW device around the glass capillary.
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Affiliation(s)
- Qiaoyun Wang
- Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, School of Control Engineering, Northeastern University at Qinhuangdao, 066004, PR China; Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK
| | - Sadaf Maramizonouz
- Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK; School of Engineering, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Mercedes Stringer Martin
- Department of Electrical and Electronic Engineering, School of Engineering, Cardiff University, Cardiff, CF24 3AA, UK
| | - Jikai Zhang
- Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK
| | - Hui Ling Ong
- Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK
| | - Qiang Liu
- Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, School of Control Engineering, Northeastern University at Qinhuangdao, 066004, PR China; Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK
| | - Xin Yang
- Department of Electrical and Electronic Engineering, School of Engineering, Cardiff University, Cardiff, CF24 3AA, UK
| | - Mohammad Rahmati
- Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK
| | - Hamdi Torun
- Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK
| | - Wai Pang Ng
- Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK
| | - Qiang Wu
- Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK
| | - Richard Binns
- Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK
| | - Yongqing Fu
- Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK.
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7
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Kshetri KG, Nama N. Acoustophoresis around an elastic scatterer in a standing wave field. Phys Rev E 2023; 108:045102. [PMID: 37978594 DOI: 10.1103/physreve.108.045102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 09/11/2023] [Indexed: 11/19/2023]
Abstract
Acoustofluidic systems often employ prefabricated acoustic scatterers that perturb the imposed acoustic field to realize the acoustophoresis of immersed microparticles. We present a numerical study to investigate the time-averaged streaming and radiation force fields around a scatterer. Based on the streaming and radiation force field, we obtain the trajectories of the immersed microparticles with varying sizes and identify a critical transition size at which the motion of immersed microparticles in the vicinity of a prefabricated scatterer shifts from being streaming dominated to radiation dominated. We consider a range of acoustic frequencies to reveal that the critical transition size decreases with increasing frequency; this result explains the choice of acoustic frequencies in previously reported experimental studies. We also examine the impact of scatterer material and fluid properties on the streaming and radiation force fields, as well as on the critical transition size. Our results demonstrate that the critical transition size decreases with an increase in acoustic contrast factor: a nondimensional quantity that depends on material properties of the scatterer and the fluid. Our results provide a pathway to realize radiation force based manipulation of small particles by increasing the acoustic contrast factor of the scatterer, lowering the kinematic viscosity of the fluid, and increasing the acoustic frequency.
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Affiliation(s)
- Khemraj Gautam Kshetri
- Department of Mechanical & Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
| | - Nitesh Nama
- Department of Mechanical & Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
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8
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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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9
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Kolesnik K, Segeritz P, Scott DJ, Rajagopal V, Collins DJ. Sub-wavelength acoustic stencil for tailored micropatterning. LAB ON A CHIP 2023; 23:2447-2457. [PMID: 37042175 DOI: 10.1039/d3lc00043e] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Acoustofluidic devices are ideal for biomedical micromanipulation applications, with high biocompatibility and the ability to generate force gradients down to the scale of cells. However, complex and designed patterning at the microscale remains challenging. In this work we report an acoustofluidic approach to direct particles and cells within a structured surface in arbitrary configurations. Wells, trenches and cavities are embedded in this surface. Combined with a half-wavelength acoustic field, together these form an 'acoustic stencil' where arbitrary cell and particle arrangements can be reversibly generated. Here a bulk-wavemode lithium niobate resonator generates multiplexed parallel patterning via a multilayer resonant geometry, where cell-scale resolution is accomplished via structured sub-wavelength microfeatures. Uniquely, this permits simultaneous manipulation in a unidirectional, device-spanning single-node field across scalable ∼cm2 areas in a microfluidic device. This approach is demonstrated via patterning of 5, 10 and 15 μm particles and 293-F cells in a variety of arrangements, where these activities are enabling for a range of cell studies and tissue engineering applications via the generation of highly complex and designed acoustic patterns at the microscale.
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Affiliation(s)
- Kirill Kolesnik
- Department of Biomedical Engineering, The University of Melbourne, Parkville, VIC 3010, Victoria, Australia.
| | - Philipp Segeritz
- Department of Biomedical Engineering, The University of Melbourne, Parkville, VIC 3010, Victoria, Australia.
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, 30 Royal Parade, Parkville, VIC 3052, Australia
| | - Daniel J Scott
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, 30 Royal Parade, Parkville, VIC 3052, Australia
- Department of Biochemistry and Pharmacology, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Vijay Rajagopal
- Department of Biomedical Engineering, The University of Melbourne, Parkville, VIC 3010, Victoria, Australia.
| | - David J Collins
- Department of Biomedical Engineering, The University of Melbourne, Parkville, VIC 3010, Victoria, Australia.
- The Graeme Clark Institute, The University of Melbourne, Parkville, VIC, 3010, Australia
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10
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Hu Q, Hu X, Shi Y, Liang L, Zhu J, Zhao S, Wang Y, Wu Z, Wang F, Zhou F, Yang Y. Heterogeneous tissue construction by on-demand bubble-assisted acoustic patterning. LAB ON A CHIP 2023; 23:2206-2216. [PMID: 37006165 DOI: 10.1039/d3lc00122a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Highly heterogeneous structures are closely related to the realization of the tissue functions of living organisms. However, precisely controlling the assembly of heterogeneous structures is still a crucial challenge. This work presents an on-demand bubble-assisted acoustic method for active cell patterning to achieve high-precision heterogeneous structures. Active cell patterning is achieved by the combined effect of acoustic radiation forces and microstreaming around oscillating bubble arrays. On-demand bubble arrays allow flexible construction of cell patterns with a precision of up to 45 μm. As a typical example, the in vitro model of hepatic lobules, composed of patterned endothelial cells and hepatic parenchymal cells, was constructed and cultured for 5 days. The good performance of urea and albumin secretion, enzymatic activity and good proliferation of both cells prove the feasibility of this technique. Overall, this bubble-assisted acoustic approach provides a simple and efficient strategy for on-demand large-area tissue construction, with considerable potential for different tissue model fabrication.
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Affiliation(s)
- Qinghao Hu
- Department of Clinical Laboratory, Institute of Medicine and Physics, Renmin Hospital, Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics & Technology, Wuhan University, Wuhan 430072, People's Republic of China.
- Shenzhen Research Institute, Wuhan University, Shenzhen 518000, People's Republic of China
| | - Xuejia Hu
- Department of Electronic Engineering, School of Electronic Science and Engineering, Xiamen University, Xiamen 361005, People's Republic of China
| | - Yang Shi
- Institute of Nanophotonics, Jinan University, Guangzhou 510632, China
| | - Li Liang
- Department of Clinical Laboratory, Institute of Medicine and Physics, Renmin Hospital, Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics & Technology, Wuhan University, Wuhan 430072, People's Republic of China.
- Shenzhen Research Institute, Wuhan University, Shenzhen 518000, People's Republic of China
| | - Jiaomeng Zhu
- Department of Clinical Laboratory, Institute of Medicine and Physics, Renmin Hospital, Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics & Technology, Wuhan University, Wuhan 430072, People's Republic of China.
- Shenzhen Research Institute, Wuhan University, Shenzhen 518000, People's Republic of China
| | - Shukun Zhao
- Department of Clinical Laboratory, Institute of Medicine and Physics, Renmin Hospital, Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics & Technology, Wuhan University, Wuhan 430072, People's Republic of China.
- Shenzhen Research Institute, Wuhan University, Shenzhen 518000, People's Republic of China
| | - Yifan Wang
- Department of Clinical Laboratory, Institute of Medicine and Physics, Renmin Hospital, Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics & Technology, Wuhan University, Wuhan 430072, People's Republic of China.
- Shenzhen Research Institute, Wuhan University, Shenzhen 518000, People's Republic of China
| | - Zezheng Wu
- Department of Clinical Laboratory, Institute of Medicine and Physics, Renmin Hospital, Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics & Technology, Wuhan University, Wuhan 430072, People's Republic of China.
| | - Fubing Wang
- Department of Laboratory Medicine, Zhongnan Hospital, Wuhan University, Wuhan 430071, China
| | - Fuling Zhou
- Department of Hematology, Zhongnan Hospital, Wuhan University, Wuhan 430071, China
| | - Yi Yang
- Department of Clinical Laboratory, Institute of Medicine and Physics, Renmin Hospital, Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics & Technology, Wuhan University, Wuhan 430072, People's Republic of China.
- Shenzhen Research Institute, Wuhan University, Shenzhen 518000, People's Republic of China
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11
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Xu M, Harley WS, Ma Z, Lee PVS, Collins DJ. Sound-Speed Modifying Acoustic Metasurfaces for Acoustic Holography. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2208002. [PMID: 36657796 DOI: 10.1002/adma.202208002] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 01/13/2023] [Indexed: 06/17/2023]
Abstract
Acoustic metasurfaces offer unique capabilities to steer and direct acoustic fields, though these are generally composed of complex 3D structures, complicating their fabrication and applicability to higher frequencies. Here, an ultrathin metasurface approach is demonstrated, wherein planarized micropillars in a discretized phase array are utilized. This subwavelength metasurface is easily produced via a single-step etching process and is suitable for megahertz-scale applications. The flexibility of this approach is further demonstrated in the production of complex acoustic patterns via acoustic holography. This metasurface approach, with models used to predict their behavior, has broad potential in applications where robust, high-frequency acoustic manipulation is required, including microfluidics, cell/tissue engineering, and medical ultrasound.
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Affiliation(s)
- Mingxin Xu
- 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
| | - Zhichao Ma
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
- Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Peter V S Lee
- Department of Biomedical Engineering, University of Melbourne, Melbourne, Victoria, 3010, 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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Liu Y, Ding H, Li J, Lou X, Yang M, Zheng Y. Light-driven single-cell rotational adhesion frequency assay. ELIGHT 2022; 2:13. [PMID: 35965781 DOI: 10.1186/s43593-022-00013-3] [Citation(s) in RCA: 56] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 06/28/2022] [Accepted: 07/07/2022] [Indexed: 05/23/2023]
Abstract
UNLABELLED The interaction between cell surface receptors and extracellular ligands is highly related to many physiological processes in living systems. Many techniques have been developed to measure the ligand-receptor binding kinetics at the single-cell level. However, few techniques can measure the physiologically relevant shear binding affinity over a single cell in the clinical environment. Here, we develop a new optical technique, termed single-cell rotational adhesion frequency assay (scRAFA), that mimics in vivo cell adhesion to achieve label-free determination of both homogeneous and heterogeneous binding kinetics of targeted cells at the subcellular level. Moreover, the scRAFA is also applicable to analyze the binding affinities on a single cell in native human biofluids. With its superior performance and general applicability, scRAFA is expected to find applications in study of the spatial organization of cell surface receptors and diagnosis of infectious diseases. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1186/s43593-022-00020-4.
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Affiliation(s)
- Yaoran Liu
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX 78712 USA
| | - Hongru Ding
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712 USA
| | - Jingang Li
- Materials Science & Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712 USA
| | - Xin Lou
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Mingcheng Yang
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049 China
- Beijing National Laboratory for Condensed Matter Physics and Laboratory of Soft Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190 China
- Songshan Lake Materials Laboratory, Dongguan, 523808 Guangdong China
| | - Yuebing Zheng
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX 78712 USA
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712 USA
- Materials Science & Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712 USA
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78712 USA
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Enhanced Detection in Droplet Microfluidics by Acoustic Vortex Modulation of Particle Rings and Particle Clusters via Asymmetric Propagation of Surface Acoustic Waves. BIOSENSORS 2022; 12:bios12060399. [PMID: 35735547 PMCID: PMC9221473 DOI: 10.3390/bios12060399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/28/2022] [Accepted: 06/06/2022] [Indexed: 11/24/2022]
Abstract
As a basis for biometric and chemical analysis, issues of how to dilute or concentrate substances such as particles or cells to specific concentrations have long been of interest to researchers. In this study, travelling surface acoustic wave (TSAW)-based devices with three frequencies (99.1, 48.8, 20.4 MHz) have been used to capture the suspended Polystyrene (PS) microspheres of various sizes (5, 20, 40 μm) in sessile droplets, which are controlled by acoustic field-induced fluid vortex (acoustic vortex) and aggregate into clusters or rings with particles. These phenomena can be explained by the interaction of three forces, which are drag force caused by ASF, ARF caused by Leaky-SAW and varying centrifugal force. Eventually, a novel approach of free transition between the particle ring and cluster was approached via modulating the acoustic amplitude of TSAW. By this method, multilayer particles agglomerate with 20 μm wrapped around 40 μm and 20 μm wrapped around 5 μm can be obtained, which provides the possibility to dilute or concentrate the particles to a specific concentration.
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