101
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Zhang X, Son R, Lin YJ, Gill A, Chen S, Qi T, Choi D, Wen J, Lu Y, Lin NYC, Chiou PY. Rapid prototyping of functional acoustic devices using laser manufacturing. LAB ON A CHIP 2022; 22:4327-4334. [PMID: 36285690 PMCID: PMC10122935 DOI: 10.1039/d2lc00725h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Acoustic patterning of micro-particles has many important biomedical applications. However, fabrication of such microdevices is costly and labor-intensive. Among conventional fabrication methods, photo-lithography provides high resolution but is expensive and time consuming, and not ideal for rapid prototyping and testing for academic applications. In this work, we demonstrate a highly efficient method for rapid prototyping of acoustic patterning devices using laser manufacturing. With this method we can fabricate a newly designed functional acoustic device in 4 hours. The acoustic devices fabricated using this method can achieve sub-wavelength, complex and non-periodic patterning of microparticles and biological objects with a spatial resolution of 60 μm across a large active manipulation area of 10 × 10 mm2.
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Affiliation(s)
- Xiang Zhang
- Department of Mechanical and Aerospace Engineering, University of California at Los Angeles, USA.
| | - Rosa Son
- Department of Mechanical and Aerospace Engineering, University of California at Los Angeles, USA.
| | - Yen-Ju Lin
- Department of Electrical and Computer Engineering, University of California at Los Angeles, USA
| | - Alexi Gill
- Department of Mechanical and Aerospace Engineering, University of California at Los Angeles, USA.
| | - Shilin Chen
- Department of Chemical and Biomolecular Engineering, University of California at Los Angeles, USA
- Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine, University of California at Los Angeles, USA
| | - Tong Qi
- Department of Chemical and Biomolecular Engineering, University of California at Los Angeles, USA
- Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine, University of California at Los Angeles, USA
| | - David Choi
- Department of Mechanical and Aerospace Engineering, University of California at Los Angeles, USA.
| | - Jing Wen
- Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine, University of California at Los Angeles, USA
| | - Yunfeng Lu
- Department of Chemical and Biomolecular Engineering, University of California at Los Angeles, USA
| | - Neil Y C Lin
- Department of Mechanical and Aerospace Engineering, University of California at Los Angeles, USA.
- Department of Bioengineering, University of California at Los Angeles, USA
- Institute for Quantitative and Computational Biosciences, University of California at Los Angeles, USA
| | - Pei-Yu Chiou
- Department of Mechanical and Aerospace Engineering, University of California at Los Angeles, USA.
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102
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Durrer J, Agrawal P, Ozgul A, Neuhauss SCF, Nama N, Ahmed D. A robot-assisted acoustofluidic end effector. Nat Commun 2022; 13:6370. [PMID: 36289227 PMCID: PMC9605990 DOI: 10.1038/s41467-022-34167-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 10/17/2022] [Indexed: 12/25/2022] Open
Abstract
Liquid manipulation is the foundation of most laboratory processes. For macroscale liquid handling, both do-it-yourself and commercial robotic systems are available; however, for microscale, reagents are expensive and sample preparation is difficult. Over the last decade, lab-on-a-chip (LOC) systems have come to serve for microscale liquid manipulation; however, lacking automation and multi-functionality. Despite their potential synergies, each has grown separately and no suitable interface yet exists to link macro-level robotics with micro-level LOC or microfluidic devices. Here, we present a robot-assisted acoustofluidic end effector (RAEE) system, comprising a robotic arm and an acoustofluidic end effector, that combines robotics and microfluidic functionalities. We further carried out fluid pumping, particle and zebrafish embryo trapping, and mobile mixing of complex viscous liquids. Finally, we pre-programmed the RAEE to perform automated mixing of viscous liquids in well plates, illustrating its versatility for the automatic execution of chemical processes.
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Affiliation(s)
- Jan Durrer
- Acoustic Robotics Systems Lab, Institute or Robotics and Intelligent Systems, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
| | - Prajwal Agrawal
- Acoustic Robotics Systems Lab, Institute or Robotics and Intelligent Systems, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
| | - Ali Ozgul
- Acoustic Robotics Systems Lab, Institute or Robotics and Intelligent Systems, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
| | - Stephan C F Neuhauss
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - Nitesh Nama
- Department of Mechanical & Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Daniel Ahmed
- Acoustic Robotics Systems Lab, Institute or Robotics and Intelligent Systems, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland.
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103
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Vuille-Dit-Bille E, Deshmukh DV, Connolly S, Heub S, Boder-Pasche S, Dual J, Tibbitt MW, Weder G. Tools for manipulation and positioning of microtissues. LAB ON A CHIP 2022; 22:4043-4066. [PMID: 36196619 DOI: 10.1039/d2lc00559j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Complex three-dimensional (3D) in vitro models are emerging as a key technology to support research areas in personalised medicine, such as drug development and regenerative medicine. Tools for manipulation and positioning of microtissues play a crucial role in the microtissue life cycle from production to end-point analysis. The ability to precisely locate microtissues can improve the efficiency and reliability of processes and investigations by reducing experimental time and by providing more controlled parameters. To achieve this goal, standardisation of the techniques is of primary importance. Compared to microtissue production, the field of microtissue manipulation and positioning is still in its infancy but is gaining increasing attention in the last few years. Techniques to position microtissues have been classified into four main categories: hydrodynamic techniques, bioprinting, substrate modification, and non-contact active forces. In this paper, we provide a comprehensive review of the different tools for the manipulation and positioning of microtissues that have been reported to date. The working mechanism of each technique is described, and its merits and limitations are discussed. We conclude by evaluating the potential of the different approaches to support progress in personalised medicine.
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Affiliation(s)
- Emilie Vuille-Dit-Bille
- Centre Suisse d'Electronique et de Microtechnique SA, Neuchâtel, Switzerland.
- MicroBioRobotic Systems Laboratory, Institute of Mechanical Engineering, EPFL, Lausanne, Switzerland
| | - Dhananjay V Deshmukh
- Macromolecular Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
- Institute for Mechanical Systems, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
| | - Sinéad Connolly
- Laboratory of Biosensors and Bioelectronics, Institute for Biomedical Engineering, ETH Zürich, Zurich, Switzerland
| | - Sarah Heub
- Centre Suisse d'Electronique et de Microtechnique SA, Neuchâtel, Switzerland.
| | | | - Jürg Dual
- Institute for Mechanical Systems, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
| | - Mark W Tibbitt
- Macromolecular Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
| | - Gilles Weder
- Centre Suisse d'Electronique et de Microtechnique SA, Neuchâtel, Switzerland.
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104
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Jin S, Ye G, Cao N, Liu X, Dai L, Wang P, Wang T, Wei X. Acoustics-Controlled Microdroplet and Microbubble Fusion and Its Application in the Synthesis of Hydrogel Microspheres. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:12602-12609. [PMID: 36194518 DOI: 10.1021/acs.langmuir.2c02080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Droplet fusion technology is a key technology for many droplet-based biochemical medical applications. By integrating a symmetrical flow channel structure, we demonstrate an acoustics-controlled fusion method of microdroplets using surface acoustic waves. Different kinds of microdroplets can be staggered and ordered in the symmetrical flow channel, proving the good arrangement effect of the microfluidic chip. This method can realize not only the effective fusion of microbubbles but also the effective fusion of microdroplets of different sizes without any modification. Further, we investigate the influence of the input frequency and peak-to-peak value of the driving voltage on microdroplets fusion, giving the effective fusion parameter conditions of microdroplets. Finally, this method is successfully used in the preparation of hydrogel microspheres, offering a new platform for the synthesis of hydrogel microspheres.
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Affiliation(s)
- Shaobo Jin
- Henan Key Laboratory of Intelligent Manufacturing Mechanical Equipment, Zhengzhou University of Light Industry, Zhengzhou450002, China
| | - Guoyong Ye
- Henan Key Laboratory of Intelligent Manufacturing Mechanical Equipment, Zhengzhou University of Light Industry, Zhengzhou450002, China
| | - Na Cao
- The Third Affiliated Hospital of Zhengzhou University, Zhengzhou450052, China
| | - Xuling Liu
- Henan Key Laboratory of Intelligent Manufacturing Mechanical Equipment, Zhengzhou University of Light Industry, Zhengzhou450002, China
| | - Liguo Dai
- Henan Key Laboratory of Intelligent Manufacturing Mechanical Equipment, Zhengzhou University of Light Industry, Zhengzhou450002, China
| | - Pengpeng Wang
- Henan Key Laboratory of Intelligent Manufacturing Mechanical Equipment, Zhengzhou University of Light Industry, Zhengzhou450002, China
| | - Tong Wang
- Henan Key Laboratory of Intelligent Manufacturing Mechanical Equipment, Zhengzhou University of Light Industry, Zhengzhou450002, China
| | - Xueyong Wei
- State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an710049, China
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105
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Wu J, Chen P, Chen J, Ye X, Cao S, Sun C, Jin Y, Zhang L, Du S. Integrated ratiometric fluorescence probe-based acoustofluidic platform for visual detection of anthrax biomarker. Biosens Bioelectron 2022; 214:114538. [PMID: 35820251 DOI: 10.1016/j.bios.2022.114538] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/13/2022] [Accepted: 07/01/2022] [Indexed: 11/28/2022]
Abstract
The sensitive detection of dipicolinic acid (DPA) as an excellent biomarker of Bacillus anthracis, especially through visual point-of-care testing, is significant for accurate and rapid diagnosis of anthrax to timely prevent anthrax disease or biological terrorist attack. Herein, an acoustofluidics-based colorimetric platform with the integrated ratiometric fluorescence probe (INT-probe) was fabricated, which improved the sensitivity of visual detection for DPA and overcame the poor reproducibility of the existing acoustofluidics-assisted colorimetric analysis. For the design of INT-probe, Eu3+-EDTA complex as sensing moiety was grafted onto the surface of blue organosilane-functionalized carbon dots (SiCDs)-doped SiO2 nanoparticles (NPs). Upon exposure to DPA, Eu3+ was sensitized by DPA to emit red luminescence, while the SiCDs as reference inside the SiO2 NPs still kept the blue fluorescence unchanged. Attributed to the acoustic radiation force-driven enrichment of the INT-probe, slight color changes caused by low concentration of DPA could be amplified and distinguished by naked-eyes/smartphone. With the increase of DPA concentration, obvious color variations of INT-probe/DPA aggregates from blue to pink could be observed, and the color information of the fluorescent aggregates was converted to red, green and blue values for quantitative analysis, whose lowest detectable concentration reached 100 nM that is about 2-3 orders of magnitude lower than the infectious dosage of Bacillus anthracis spores (60 μM). Importantly, benefiting from the great color signal enhancement by acoustofluidic sensing platform, the usage of Eu3+ reduced to as low as 0.273 μmol per gram of SiO2 NPs, providing a meaningful way to utilize lanthanide resource efficiently.
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Affiliation(s)
- Jiafeng Wu
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Panpan Chen
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Jie Chen
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Xiangxue Ye
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Shurui Cao
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Chuqiang Sun
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Yang Jin
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Liying Zhang
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China.
| | - Shuhu Du
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China.
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106
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Cao HX, Nguyen VD, Jung D, Choi E, Kim CS, Park JO, Kang B. Acoustically Driven Cell-Based Microrobots for Targeted Tumor Therapy. Pharmaceutics 2022; 14:pharmaceutics14102143. [PMID: 36297578 PMCID: PMC9609374 DOI: 10.3390/pharmaceutics14102143] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/06/2022] [Accepted: 10/06/2022] [Indexed: 11/06/2022] Open
Abstract
Targeted drug delivery using microrobots manipulated by an external actuator has significant potential to be a practical approach for wireless delivery of therapeutic agents to the targeted tumor. This work aimed to develop a novel acoustic manipulation system and macrophage-based microrobots (Macbots) for a study in targeted tumor therapy. The Macbots containing superparamagnetic iron oxide nanoparticles (SPIONs) can serve as drug carriers. Under an acoustic field, a microrobot cluster of the Macbots is manipulated by following a predefined trajectory and can reach the target with a different contact angle. As a fundamental validation, we investigated an in vitro experiment for targeted tumor therapy. The microrobot cluster could be manipulated to any point in the 4 × 4 × 4 mm region of interest with a position error of less than 300 μm. Furthermore, the microrobot could rotate in the O-XY plane with an angle step of 45 degrees without limitation of total angle. Finally, we verified that the Macbots could penetrate a 3D tumor spheroid that mimics an in vivo solid tumor. The outcome of this study suggests that the Macbots manipulated by acoustic actuators have potential applications for targeted tumor therapy.
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Affiliation(s)
- Hiep Xuan Cao
- School of Mechanical Engineering, Chonnam National University, Gwangju 61186, Korea
- Korea Institute of Medical Microrobotics, Gwangju 61011, Korea
| | - Van Du Nguyen
- School of Mechanical Engineering, Chonnam National University, Gwangju 61186, Korea
- Korea Institute of Medical Microrobotics, Gwangju 61011, Korea
| | - Daewon Jung
- Korea Institute of Medical Microrobotics, Gwangju 61011, Korea
| | - Eunpyo Choi
- School of Mechanical Engineering, Chonnam National University, Gwangju 61186, Korea
- Korea Institute of Medical Microrobotics, Gwangju 61011, Korea
| | - Chang-Sei Kim
- School of Mechanical Engineering, Chonnam National University, Gwangju 61186, Korea
- Correspondence: (C.-S.K.); (J.-O.P.); (B.K.)
| | - Jong-Oh Park
- Korea Institute of Medical Microrobotics, Gwangju 61011, Korea
- Correspondence: (C.-S.K.); (J.-O.P.); (B.K.)
| | - Byungjeon Kang
- Korea Institute of Medical Microrobotics, Gwangju 61011, Korea
- College of AI Convergence, Chonnam National University, Gwangju 61186, Korea
- Graduate School of Data Science, Chonnam National University, Gwangju 61186, Korea
- Correspondence: (C.-S.K.); (J.-O.P.); (B.K.)
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107
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Shahriar M, Lui YH, Zhang B, Lichade K, Pan Y, Hu S. Acoustic Tweezer-Modulated Biomimetic Patterned Particle-Polymer Composite for Water Vapor Harvesting. ACS APPLIED MATERIALS & INTERFACES 2022; 14:44782-44791. [PMID: 36129474 DOI: 10.1021/acsami.2c09280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
With the recent threat of climate change and global warming, ensuring access to safe drinking water is a great challenge in many areas worldwide. Designing functional materials for capturing water from natural resources like fog and mist has become one of the key research areas to maximize the production of clean water. From this aspect, nature is a great source for designing bioinspired functional materials as some of the plant leaves and animal exoskeletons can harness water and then store it to save themselves from arid, xeric conditions. Inspired by the Stenocara beetle, we have designed a composite surface structure with periodic islands made of aluminum microparticles surrounded by poly(dimethylenesiloxane) (PDMS). An acoustic tweezer-based method was used to fabricate the bioinspired composite structures, where surface acoustic waves at specific frequencies and amplitudes are applied to align the microparticles as islands in the polymer matrix. An oxygen plasma etching step was applied to expose the microparticles on the PDMS surface. The average water harvesting efficiencies for structures made with 120 and 80 kHz acoustic frequencies and 1 hour etching time were found to be 9.41 and 8.84 g cm-2 h-1, respectively. The acoustically patterned biomimetic composite surface showed higher water harvesting efficiency compared with completely hydrophobic PDMS and hydrophilic aluminum surfaces, demonstrating the advantages of the bioinspired composite material design and acoustic-assisted manufacturing technique. The biomimetic fog water harvesting material is a promising avenue to fulfill the demand for a cost-effective, sustainable, and energy-efficient solution to safe drinking water.
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Affiliation(s)
- M Shahriar
- Department of Mechanical Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Yu Hui Lui
- Department of Mechanical Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Bowei Zhang
- School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Ketki Lichade
- Department of Mechanical and Industrial Engineering, University of Illinois Chicago, Chicago, Illinois 60607, United States
| | - Yayue Pan
- Department of Mechanical and Industrial Engineering, University of Illinois Chicago, Chicago, Illinois 60607, United States
| | - Shan Hu
- Department of Mechanical Engineering, Iowa State University, Ames, Iowa 50011, United States
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108
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Liu X, Deng Z, Ma L, Liu X. Acoustic radiation force on a rigid cylinder between two impedance boundaries in a viscous fluid. NANOTECHNOLOGY AND PRECISION ENGINEERING 2022. [DOI: 10.1063/10.0013562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Acoustofluidic technology combines acoustic and microfluidic technologies to realize particle manipulation in microchannels driven by acoustic waves, and the acoustic radiation force (ARF) with boundaries is important for particle manipulation in an acoustofluidic device. In the work reported here, the ARF on a free cylinder immersed in a viscous fluid with an incident plane wave between two impedance boundaries is derived analytically and calculated numerically. The influence of multiple scattering between the particle and the impedance boundaries is described by means of image theory, the finite-series method, and the translational addition theorem, and multiple scattering is included partly in image theory. The ARF on a free rigid cylinder in a viscous fluid is analyzed by numerical calculation, with consideration given to the effects of the distances from cylinder edge to boundaries, fluid viscosity, cylinder size, and boundary reflectivity. The results show that the interaction between the two boundaries and the cylinder makes the ARF change more violently with different frequencies, while increasing the viscosity can reduce the amplitude of the ARF in boundary space. This study provides a theoretical basis for particle manipulation by the ARF in acoustofluidics.
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Affiliation(s)
- Xinlei Liu
- Key Laboratory of Modern Acoustics, Institute of Acoustics and School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Zhaoyu Deng
- Key Laboratory of Modern Acoustics, Institute of Acoustics and School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Li Ma
- Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiaozhou Liu
- Key Laboratory of Modern Acoustics, Institute of Acoustics and School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
- State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
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109
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Ao Z, Song S, Tian C, Cai H, Li X, Miao Y, Wu Z, Krzesniak J, Ning B, Gu M, Lee LP, Guo F. Understanding Immune-Driven Brain Aging by Human Brain Organoid Microphysiological Analysis Platform. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2200475. [PMID: 35908805 PMCID: PMC9507385 DOI: 10.1002/advs.202200475] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 06/17/2022] [Indexed: 05/09/2023]
Abstract
The aging of the immune system drives systemic aging and the pathogenesis of age-related diseases. However, a significant knowledge gap remains in understanding immune-driven aging, especially in brain aging, due to the limited current in vitro models of neuroimmune interaction. Here, the authors report the development of a human brain organoid microphysiological analysis platform (MAP) to discover the dynamic process of immune-driven brain aging. The organoid MAP is created by 3D printing that confines organoid growth and facilitates cell and nutrition perfusion, promoting organoid maturation and their committment to forebrain identity. Dynamic rocking flow is incorporated into the platform that allows to perfuse primary monocytes from young (20 to 30-year-old) and aged (>60-year-old) donors and culture human cortical organoids to model neuroimmune interaction. The authors find that the aged monocytes increase infiltration and promote the expression of aging-related markers (e.g., higher expression of p16) within the human cortical organoids, indicating that aged monocytes may drive brain aging. The authors believe that the organoid MAP may provide promising solutions for basic research and translational applications in aging, neural immunological diseases, autoimmune disorders, and cancer.
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Affiliation(s)
- Zheng Ao
- Department of Intelligent Systems EngineeringIndiana UniversityBloomingtonIN47405USA
| | - Sunghwa Song
- Department of Intelligent Systems EngineeringIndiana UniversityBloomingtonIN47405USA
| | - Chunhui Tian
- Department of Intelligent Systems EngineeringIndiana UniversityBloomingtonIN47405USA
| | - Hongwei Cai
- Department of Intelligent Systems EngineeringIndiana UniversityBloomingtonIN47405USA
| | - Xiang Li
- Department of Intelligent Systems EngineeringIndiana UniversityBloomingtonIN47405USA
| | - Yifei Miao
- Center for Stem Cell and Organoid Medicine (CuSTOM)Division of Pulmonary BiologyDivision of Developmental BiologyCincinnati Children's Hospital Medical CenterCincinnatiOH45229USA
- University of Cincinnati School of MedicineCincinnatiOH45229USA
| | - Zhuhao Wu
- Department of Intelligent Systems EngineeringIndiana UniversityBloomingtonIN47405USA
| | - Jonathan Krzesniak
- Department of Intelligent Systems EngineeringIndiana UniversityBloomingtonIN47405USA
| | - Bo Ning
- Center for Cellular and Molecular DiagnosticsDepartment of Biochemistry and Molecular BiologyTulane University School of MedicineNew OrleansLA70112USA
| | - Mingxia Gu
- Center for Stem Cell and Organoid Medicine (CuSTOM)Division of Pulmonary BiologyDivision of Developmental BiologyCincinnati Children's Hospital Medical CenterCincinnatiOH45229USA
- University of Cincinnati School of MedicineCincinnatiOH45229USA
| | - Luke P. Lee
- Harvard Institute of MedicineHarvard Medical SchoolHarvard UniversityBrigham and Women's HospitalBostonMA02115USA
- Department of BioengineeringDepartment of Electrical Engineering and Computer ScienceUniversity of California at BerkeleyBerkeleyCA94720USA
- Department of BiophysicsInstitute of Quantum BiophysicsSungkyunkwan UniversitySuwonGyeonggi‐do16419South Korea
| | - Feng Guo
- Department of Intelligent Systems EngineeringIndiana UniversityBloomingtonIN47405USA
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110
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Lin L, Dang H, Zhu R, Liu Y, You H. Effects of Side Profile on Acoustic Streaming by Oscillating Microstructures in Channel. MICROMACHINES 2022; 13:mi13091439. [PMID: 36144062 PMCID: PMC9504731 DOI: 10.3390/mi13091439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 08/25/2022] [Accepted: 08/26/2022] [Indexed: 06/01/2023]
Abstract
In microchannels, microstructure-induced acoustic streaming can be achieved at low frequencies, providing simple platforms for biomedicine and microfluidic manipulation. Nowadays, microstructures are generally fabricated by photolithography or soft photolithography. Existing studies mainly focused on the projection plane, while ignoring the side profile including microstructure's sidewall and channel's upper wall. Based on the perturbation theory, the article focuses on the effect of microstructure's sidewall errors caused by machining and the viscous dissipation of upper wall on the streaming. We discovered that the side profile parameters, particularly the gap (gap g between the top of the structure and the upper wall of the channel), have a significant impact on the maximum velocity, mode, and effective area of the streaming.To broaden the applicability, we investigated boundary layer thickness parameters including frequency and viscosity. Under different thickness parameters, the effects of side profile parameters on the streaming are similar. But the maximum streaming velocity is proportional to the frequency squared and inversely proportional to the viscosity. Besides, the ratio factor θ of the maximum streaming velocity to the vibration velocity is affected by the side profile parameter gap g and sidewall profile angle α.
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Affiliation(s)
- Lin Lin
- Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University, Nanning 530004, China
- School of Mechanical Engineering, Guangxi University, Nanning 530004, China
- Guangxi Key Lab of Manufacturing System and Advanced Manufacturing Technology, Nanning 530003, China
| | - Haojie Dang
- Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University, Nanning 530004, China
- School of Mechanical Engineering, Guangxi University, Nanning 530004, China
- Guangxi Key Lab of Manufacturing System and Advanced Manufacturing Technology, Nanning 530003, China
| | - Rongxin Zhu
- Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University, Nanning 530004, China
- School of Mechanical Engineering, Guangxi University, Nanning 530004, China
- Guangxi Key Lab of Manufacturing System and Advanced Manufacturing Technology, Nanning 530003, China
| | - Ying Liu
- Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University, Nanning 530004, China
- Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, Guangxi University, Nanning 530004, China
| | - Hui You
- Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University, Nanning 530004, China
- School of Mechanical Engineering, Guangxi University, Nanning 530004, China
- Guangxi Key Lab of Manufacturing System and Advanced Manufacturing Technology, Nanning 530003, China
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111
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Leshno A, Kenigsberg A, Peleg-Levy H, Piperno S, Skaat A, Shpaisman H. Acoustic Manipulation of Intraocular Particles. MICROMACHINES 2022; 13:1362. [PMID: 36014284 PMCID: PMC9414468 DOI: 10.3390/mi13081362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/14/2022] [Accepted: 08/17/2022] [Indexed: 06/15/2023]
Abstract
Various conditions cause dispersions of particulate matter to circulate inside the anterior chamber of a human eye. These dispersed particles might reduce visual acuity or promote elevation of intraocular pressure (IOP), causing secondary complications such as particle related glaucoma, which is a major cause of blindness. Medical and surgical treatment options are available to manage these complications, yet preventive measures are not currently available. Conceptually, manipulating these dispersed particles in a way that reduces their negative impact could prevent these complications. However, as the eye is a closed system, manipulating dispersed particles in it is challenging. Standing acoustic waves have been previously shown to be a versatile tool for manipulation of bioparticles from nano-sized extracellular vesicles up to millimeter-sized organisms. Here we introduce for the first time a novel method utilizing standing acoustic waves to noninvasively manipulate intraocular particles inside the anterior chamber. Using a cylindrical acoustic resonator, we show ex vivo manipulation of pigmentary particles inside porcine eyes. We study the effect of wave intensity over time and rule out temperature changes that could damage tissues. Optical coherence tomography and histologic evaluations show no signs of damage or any other side effect that could be attributed to acoustic manipulation. Finally, we lay out a clear pathway to how this technique can be used as a non-invasive tool for preventing secondary glaucoma. This concept has the potential to control and arrange intraocular particles in specific locations without causing any damage to ocular tissue and allow aqueous humor normal outflow which is crucial for maintaining proper IOP levels.
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Affiliation(s)
- Ari Leshno
- Sheba Medical Center, Tel Hashomer, Ramat Gan 5262000, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Avraham Kenigsberg
- Department of Chemistry and Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Heli Peleg-Levy
- Department of Chemistry and Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Silvia Piperno
- Department of Chemistry and Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Alon Skaat
- Sheba Medical Center, Tel Hashomer, Ramat Gan 5262000, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Hagay Shpaisman
- Department of Chemistry and Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan 5290002, Israel
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112
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Piao J, Liu L, Cai L, Ri HC, Jin X, Sun H, Piao X, Shang HB, Jin X, Pu Q, Cai Y, Yao Z, Nardiello D, Quinto M, Li D. High-Resolution Micro-object Separation by Rotating Magnetic Chromatography. Anal Chem 2022; 94:11500-11507. [PMID: 35943850 DOI: 10.1021/acs.analchem.2c01385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The development of new technologies for the separation, selection, and isolation of microparticles such as rare target cells, circulating tumor cells, cancer stem cells, and immune cells has become increasingly important in the last few years. Microparticle separation technologies are usually applied to the analysis of disease-associated cells, but these procedures often face a cell separation problem that is often insufficient for single specific cell analyses. To overcome these limitations, a highly accurate size-based microparticle separation technique, herein called "rotating magnetic chromatography", is proposed in this work. Magnetic nanoparticles, placed in a microfluidic separation channel, are forced to move in well-defined trajectories by an external magnetic field, colliding with microparticles that are in this way separated on the basis of their dimensions with high accuracy and reproducibility. The method was optimized by using fluorescein isothiocyanate-modified polystyrene particles (chosen as a reference standard) and then applied to the analysis of cancer cells like Hep-3B and SK-Hep-1, allowing their fast and high-resolution chromatographic separation as a function of their dimensions. Due to its unmatched sub-micrometer cell separation capabilities, RMC can be considered a break-through technique that can unlock new perspectives in different scientific fields, that is, in medical oncology.
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Affiliation(s)
- Jishou Piao
- Department of Chemistry, Yanbian University, Park Road 977, Yanji City, Jilin Province 133002, China
| | - Lu Liu
- Department of Chemistry, Yanbian University, Park Road 977, Yanji City, Jilin Province 133002, China
| | - Long Cai
- Department of Chemistry, Yanbian University, Park Road 977, Yanji City, Jilin Province 133002, China
| | - Hyok Chol Ri
- College of Pharmacy, Yanbian University, Park Road 977, Yanji City, Jilin Province 133002, China
| | - Xiangzi Jin
- Department of Chemistry, Yanbian University, Park Road 977, Yanji City, Jilin Province 133002, China
| | - Huaze Sun
- Department of Chemistry, Yanbian University, Park Road 977, Yanji City, Jilin Province 133002, China
| | - Xiangfan Piao
- Engineering College Department of Electronics, Yanbian University, Park Road 977, Yanji City, Jilin Province 133002, China
| | - Hai-Bo Shang
- Department of Chemistry, Yanbian University, Park Road 977, Yanji City, Jilin Province 133002, China
| | - Xuejun Jin
- College of Pharmacy, Yanbian University, Park Road 977, Yanji City, Jilin Province 133002, China
| | - Qiaosheng Pu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Yong Cai
- College of Life Science, Jilin University, Changchun City, Jilin province 130012, China
| | - Zhongping Yao
- State Key Laboratory of Chirosciences, Food Safety and Technology Research Centre and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR 999077, China
| | - Donatella Nardiello
- DAFNE─Department of Agriculture, Food, Natural resources and Engineering, University of Foggia, Via Napoli 25, I-71122 Foggia, Italy
| | - Maurizio Quinto
- Department of Chemistry, Yanbian University, Park Road 977, Yanji City, Jilin Province 133002, China.,DAFNE─Department of Agriculture, Food, Natural resources and Engineering, University of Foggia, Via Napoli 25, I-71122 Foggia, Italy
| | - Donghao Li
- Department of Chemistry, Yanbian University, Park Road 977, Yanji City, Jilin Province 133002, China
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113
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Kollipara PS, Mahendra R, Li J, Zheng Y. Bubble-pen lithography: Fundamentals and applications: Nanoscience: Special Issue Dedicated to Professor Paul S. Weiss. AGGREGATE (HOBOKEN, N.J.) 2022; 3:e189. [PMID: 37441005 PMCID: PMC10338034 DOI: 10.1002/agt2.189] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/15/2023]
Abstract
Developing on-chip functional devices requires reliable fabrication methods with high resolution for miniaturization, desired components for enhanced performance, and high throughput for fast prototyping and mass production. Recently, laser-based bubble-pen lithography (BPL) has been developed to enable sub-micron linewidths, in situ synthesis of custom materials, and on-demand patterning for various functional components and devices. BPL exploits Marangoni convection induced by a laser-controlled microbubble to attract, accumulate, and immobilize particles, ions, and molecules onto different substrates. Recent years have witnessed tremendous progress in theory, engineering, and application of BPL, which motivated us to write this review. First, an overview of experimental demonstrations and theoretical understandings of BPL is presented. Next, we discuss the advantages of BPL and its diverse applications in quantum dot displays, biological and chemical sensing, clinical diagnosis, nanoalloy synthesis, and microrobotics. We conclude this review with our perspective on the challenges and future directions of BPL.
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Affiliation(s)
| | - Ritvik Mahendra
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas, USA
| | - Jingang Li
- Material Science and Engineering Program, Texas Materials Institute, The University of Texas at Austin, Austin, Texas, USA
| | - Yuebing Zheng
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas, USA
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas, USA
- Material Science and Engineering Program, Texas Materials Institute, The University of Texas at Austin, Austin, Texas, USA
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114
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Wang Y, Peng M, Cheng W, Peng Z, Cheng H, Ren X, Zang S, Shuai Y, Liu H, Wu J, Yang J. Manipulation force analysis of nanoparticles with ultra-high numerical aperture metalens. OPTICS EXPRESS 2022; 30:28479-28491. [PMID: 36299042 DOI: 10.1364/oe.462869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 07/01/2022] [Indexed: 06/16/2023]
Abstract
Metalens optical tweezers technology has several advantages for manipulating micro-nano particles and high integration. Here, we used particle swarm optimization (PSO) to design a novel metalens tweezer, which can get 3-dimensional trapping of particles. The numerical aperture (NA) of the metalens can reach 0.97 and the average focusing efficiency is 44%. Subsequently, we analyzed the optical force characteristics of SiO2 particles with a radius of 350 nm at the focal point of the achromatic metalens. We found the average maximum force of SiO2 particles in the x-direction and z-direction to be 0.88 pN and 0.72 pN, respectively. Compared with the dispersive metalens, it is beneficial in maintaining the constant of optical force, the motion state of trapped particles, and the stability of the trapping position.
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115
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Weser R, Deng Z, Kondalkar VV, Darinskii AN, Cierpka C, Schmidt H, König J. Three-dimensional heating and patterning dynamics of particles in microscale acoustic tweezers. LAB ON A CHIP 2022; 22:2886-2901. [PMID: 35851398 DOI: 10.1039/d2lc00200k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Acoustic tweezers facilitate a noninvasive, contactless, and label-free method for the precise manipulation of micro objects, including biological cells. Although cells are exposed to mechanical and thermal stress, acoustic tweezers are usually considered as biocompatible. Here, we present a holistic experimental approach to reveal the correlation between acoustic fields, acoustophoretic motion and heating effects of particles induced by an acoustic tweezer setup. The system is based on surface acoustic waves and was characterized by applying laser Doppler vibrometry, astigmatism particle tracking velocimetry and luminescence lifetime imaging. In situ measurements with high spatial and temporal resolution reveal a three-dimensional particle patterning coinciding with the experimentally assisted numerical result of the acoustic radiation force distribution. In addition, a considerable and rapid heating up to 55 °C depending on specific parameters was observed. Although these temperatures may be harmful to living cells, counter-measures can be found as the time scales of patterning and heating are shown to be different.
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Affiliation(s)
- Robert Weser
- Leibniz Institute for Solid State and Materials Research Dresden, SAWLab Saxony, Dresden, Germany.
| | - Zhichao Deng
- Institute of Thermodynamics and Fluid Mechanics, Technische Universität Ilmenau, Ilmenau, Germany.
| | - Vijay V Kondalkar
- Leibniz Institute for Solid State and Materials Research Dresden, SAWLab Saxony, Dresden, Germany.
| | - Alexandre N Darinskii
- Institute of Crystallography FSRC "Crystallography and Photonics", Russian Academy of Sciences, Moscow, Russia
| | - Christian Cierpka
- Institute of Thermodynamics and Fluid Mechanics, Technische Universität Ilmenau, Ilmenau, Germany.
| | - Hagen Schmidt
- Leibniz Institute for Solid State and Materials Research Dresden, SAWLab Saxony, Dresden, Germany.
| | - Jörg König
- Institute of Thermodynamics and Fluid Mechanics, Technische Universität Ilmenau, Ilmenau, Germany.
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116
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Harshbarger CL, Gerlt MS, Ghadamian JA, Bernardoni DC, Snedeker JG, Dual J. Optical feedback control loop for the precise and robust acoustic focusing of cells, micro- and nanoparticles. LAB ON A CHIP 2022; 22:2810-2819. [PMID: 35843222 DOI: 10.1039/d2lc00376g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Despite a long history and the vast number of applications demonstrated, very few market products incorporate acoustophoresis. Because a human operator must run and control a device during an experiment, most devices are limited to proof of concepts. On top of a possible detuning due to temperature changes, the human operator introduces a bias which reduces the reproducibility, performance and reliability of devices. To mitigate some of these problems, we propose an optical feedback control loop that optimizes the excitation frequency. We investigate the improvements that can be expected when a human operator is replaced for acoustic micro- and nanometer particle focusing experiments. Three experiments previously conducted in our group were taken as a benchmark. In addition to being automatic, this resulted in the feedback control loop displaying a superior performance compared to an experienced scientist in 1) improving the particle focusing by at least a factor of two for 5 μm diameter PS particles, 2) increasing the range of flow rates in which 1 μm diameter PS particles could be focused and 3) was even capable of focusing 600 nm diameter PS particles at a frequency of 1.72075 MHz. Furthermore, the feedback control loop is capable of focusing biological cells in one and two pressure nodes. The requirements for the feedback control loop are: an optical setup, a run-of-the-mill computer and a computer controllable function generator. Thus resulting in a cost-effective, high-throughput and automated method to rapidly increase the efficiency of established systems. The code for the feedback control loop is openly accessible and the authors explicitly wish that the community uses and modifies the feedback control loop to their own needs.
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Affiliation(s)
- Cooper L Harshbarger
- Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland.
- Institute for Biomechanics, Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
- Institute for Mechanical Systems, Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
| | - Michael S Gerlt
- Institute for Mechanical Systems, Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
- Institute for Chemical and Bioengineering, Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
| | - Jan A Ghadamian
- Institute for Mechanical Systems, Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
| | - Davide C Bernardoni
- Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland.
- Institute for Biomechanics, Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
| | - Jess G Snedeker
- Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland.
- Institute for Biomechanics, Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
| | - Jürg Dual
- Institute for Mechanical Systems, Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
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117
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Zhang J, Wang Y, Rodriguez BJ, Yang R, Yu B, Mei D, Li J, Tao K, Gazit E. Microfabrication of peptide self-assemblies: inspired by nature towards applications. Chem Soc Rev 2022; 51:6936-6947. [PMID: 35861374 DOI: 10.1039/d2cs00122e] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Peptide self-assemblies show intriguing and tunable physicochemical properties, and thus have been attracting increasing interest over the last two decades. However, the micro/nano-scale dimensions of the self-assemblies severely restrict their extensive applications. Inspired by nature, to genuinely realize the practical utilization of the bio-organic super-architectures, it is beneficial to further organize the peptide self-assemblies to integrate the properties of the individual supermolecules and fabricate higher-level organizations for smart functional devices. Therefore, cumulative studies have been reported on peptide microfabrication giving rise to diverse properties. This review summarizes the recent development of the microfabrication of peptide self-assemblies, discussing each methodology along with the diverse properties and practical applications of the engineered peptide large-scale, highly-ordered organizations. Finally, the current limitations of the state-of-the-art microfabrication strategies are critically assessed and alternative solutions are suggested.
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Affiliation(s)
- Jiahao Zhang
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China. .,Future Science Research Institute, Hangzhou Global Scientific and Technological Innovation Centre, Hangzhou 311200, China
| | - Yancheng Wang
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China. .,Key Laboratory of Advanced Manufacturing Technology of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Brian J Rodriguez
- School of Physics and Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin D04 V1W8, Ireland
| | - Rusen Yang
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an 710126, China
| | - Bin Yu
- Future Science Research Institute, Hangzhou Global Scientific and Technological Innovation Centre, Hangzhou 311200, China
| | - Deqing Mei
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China. .,Key Laboratory of Advanced Manufacturing Technology of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Junbai Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. .,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Kai Tao
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China. .,Future Science Research Institute, Hangzhou Global Scientific and Technological Innovation Centre, Hangzhou 311200, China.,Key Laboratory of Advanced Manufacturing Technology of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ehud Gazit
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, 6997801, Tel Aviv, Israel. .,School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, 6997801, Tel Aviv, Israel
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118
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Holographic Acoustic Tweezers for 5-DoF Manipulation of Nanocarrier Clusters toward Targeted Drug Delivery. Pharmaceutics 2022; 14:pharmaceutics14071490. [PMID: 35890382 PMCID: PMC9317593 DOI: 10.3390/pharmaceutics14071490] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/08/2022] [Accepted: 07/15/2022] [Indexed: 11/20/2022] Open
Abstract
Acoustic tweezers provide unique capabilities in medical applications, such as contactless manipulation of small objects (e.g., cells, compounds or living things), from nanometer-sized extracellular vesicles to centimeter-scale structures. Additionally, they are capable of being transmitted through the skin to trap and manipulate drug carriers in various media. However, these capabilities are hindered by the limitation of controllable degrees of freedom (DoFs) or are limited maneuverability. In this study, we explore the potential application of acoustical tweezers by presenting a five-DoF contactless manipulation acoustic system (AcoMan). The system has 30 ultrasound transducers (UTs) with single-side arrangement that generates active traveling waves to control the position and orientation of a fully untethered nanocarrier clusters (NCs) in a spherical workspace in water capable of three DoFs translation and two DoFs rotation. In this method, we use a phase modulation algorithm to independently control the phase signal for 30 UTs and manipulate the NCs’ positions. Phase modulation and switching power supply for each UT are employed to rotate the NCs in the horizontal plane and control the amplitude of power supply to each UT to rotate the NCs in the vertical plane. The feasibility of the method is demonstrated by in vitro and ex vivo experiments using porcine ribs. A significant portion of this study could advance the therapeutic application such a system as targeted drug delivery.
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119
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Jiang L, Chen H, Zeng Y, Tan Z, Wu J, Xing J, Zhu J. Potassium Sodium Niobate-Based Lead-Free High-Frequency Ultrasonic Transducers for Multifunctional Acoustic Tweezers. ACS APPLIED MATERIALS & INTERFACES 2022; 14:30979-30990. [PMID: 35767379 DOI: 10.1021/acsami.2c05687] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Ultrasonic transducers may need to operate in direct contact with the human body, especially with the skin or closer to blood vessels. Eco-friendly lead-free materials and devices are therefore being vigorously developed for biosafety considerations. This work presents high-performance potassium sodium niobate [(K,Na)NbO3, KNN]-based lead-free ceramics with composition-driven multiphase coexistence and their application on high-frequency ultrasonic transducers for multifunctional acoustic tweezers. A high piezoelectric constant d33 value of 332 pC/N, a good Curie temperature TC value of 348 °C, and improved in situ temperature stability were obtained in the piezoceramics via the construction multiple phases near room temperature and domain engineering. One to three piezocomposites were further fabricated based on the synthesized ceramics for higher electromechanical coupling properties. Lead-free high-frequency transducers as multifunctional acoustic tweezers for precise and selective manipulation of microparticles were designed and manufactured with a high center frequency of 23.4 MHz and a broad -6 dB bandwidth of 75.4%. Additionally, a stable transducer performance was obtained over a test temperature range of 23-60 °C, indicating good thermal stability in environments with fluctuating temperatures. Research on lead-free high-frequency transducers for ultrasound imaging and precise and selective manipulation of microparticles demonstrates their broad potential in fields such as medical therapy and diagnosis.
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Affiliation(s)
- Laiming Jiang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610064 , China
| | - Hao Chen
- College of Materials Science and Engineering, Sichuan University, Chengdu 610064 , China
| | - Yushun Zeng
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, California 90089, United States
| | - Zhi Tan
- College of Materials Science and Engineering, Sichuan University, Chengdu 610064 , China
| | - Jiagang Wu
- College of Materials Science and Engineering, Sichuan University, Chengdu 610064 , China
| | - Jie Xing
- College of Materials Science and Engineering, Sichuan University, Chengdu 610064 , China
| | - Jianguo Zhu
- College of Materials Science and Engineering, Sichuan University, Chengdu 610064 , China
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120
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Jin G, Rich J, Xia J, He AJ, Zhao C, Huang TJ. An acoustofluidic scanning nanoscope using enhanced image stacking and processing. MICROSYSTEMS & NANOENGINEERING 2022; 8:81. [PMID: 35846176 PMCID: PMC9279327 DOI: 10.1038/s41378-022-00401-2] [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: 02/11/2022] [Revised: 04/07/2022] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
Nanoscale optical resolution with a large field of view is a critical feature for many research and industry areas, such as semiconductor fabrication, biomedical imaging, and nanoscale material identification. Several scanning microscopes have been developed to resolve the inverse relationship between the resolution and field of view; however, those scanning microscopes still rely upon fluorescence labeling and complex optical systems. To overcome these limitations, we developed a dual-camera acoustofluidic nanoscope with a seamless image merging algorithm (alpha-blending process). This design allows us to precisely image both the sample and the microspheres simultaneously and accurately track the particle path and location. Therefore, the number of images required to capture the entire field of view (200 × 200 μm) by using our acoustofluidic scanning nanoscope is reduced by 55-fold compared with previous designs. Moreover, the image quality is also greatly improved by applying an alpha-blending imaging technique, which is critical for accurately depicting and identifying nanoscale objects or processes. This dual-camera acoustofluidic nanoscope paves the way for enhanced nanoimaging with high resolution and a large field of view.
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Affiliation(s)
- Geonsoo Jin
- Thomas Lord Department of Mechanical Engineering and Material Science, Duke University, Durham, NC 27708 USA
| | - Joseph Rich
- Department of Biomedical Engineering, Duke University, Durham, NC 27708 USA
| | - Jianping Xia
- Thomas Lord Department of Mechanical Engineering and Material Science, Duke University, Durham, NC 27708 USA
| | - Albert J. He
- Thomas Lord Department of Mechanical Engineering and Material Science, Duke University, Durham, NC 27708 USA
| | - Chenglong Zhao
- Department of Physics, University of Dayton, 300 College Park, Dayton, OH 45469 USA
- Department of Electro-Optics and Photonics, University of Dayton, 300 College Park, Dayton, OH 45469 USA
| | - Tony Jun Huang
- Thomas Lord Department of Mechanical Engineering and Material Science, Duke University, Durham, NC 27708 USA
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121
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Martinez Villegas K, Rasouli R, Tabrizian M. Enhancing metabolic activity and differentiation potential in adipose mesenchymal stem cells via high-resolution surface-acoustic-wave contactless patterning. MICROSYSTEMS & NANOENGINEERING 2022; 8:79. [PMID: 35846175 PMCID: PMC9276743 DOI: 10.1038/s41378-022-00415-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 05/20/2022] [Accepted: 06/08/2022] [Indexed: 06/05/2023]
Abstract
Acoustofluidics has shown great potential for label-free bioparticle patterning with excellent biocompatibility. Acoustofluidic patterning enables the induction of cell-cell interactions, which play fundamental roles in organogenesis and tissue development. One of the current challenges in tissue engineering is not only the control of the spatial arrangement of cells but also the preservation of cell patterns over time. In this work, we developed a standing surface acoustic wave-based platform and demonstrated its capability for the well-controlled and rapid cell patterning of adipose-derived mesenchymal stem cells in a high-density homogenous collagen hydrogel. This biocompatible hydrogel is easily UV crosslinked and can be retrieved within 3 min. Acoustic waves successfully guided the cells toward pressure nodal lines, creating a contactless alignment of cells in <5 s in culture media and <1 min in the hydrogel. The acoustically patterned cells in the hydrogel did not show a decrease in cell viability (>90%) 48 h after acoustic induction. Moreover, 45.53% and 30.85% increases in metabolic activity were observed in growth and differentiation media, respectively, on Day 7. On Day 14, a 32.03% change in metabolic activity was observed using growth media, and no significant difference was observed using differentiation media. The alkaline phosphatase activity showed an increase of 80.89% and 24.90% on Days 7 and 14, respectively, for the acoustically patterned cells in the hydrogel. These results confirm the preservation of cellular viability and improved cellular functionality using the proposed high-resolution acoustic patterning technique and introduce unique opportunities for the application of stem cell regenerative patches for the emerging field of tissue engineering.
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Affiliation(s)
| | - Reza Rasouli
- Department of Biological and Biomedical Engineering, McGill University, Montreal, QC Canada
| | - Maryam Tabrizian
- Department of Biological and Biomedical Engineering, McGill University, Montreal, QC Canada
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC Canada
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122
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Liu J, Li Z, Ding Y, Chen A, Liang B, Yang J, Cheng JC, Christensen J. Twisting Linear to Orbital Angular Momentum in an Ultrasonic Motor. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2201575. [PMID: 35526115 DOI: 10.1002/adma.202201575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/31/2022] [Indexed: 06/14/2023]
Abstract
An ultrasonic motor built with a contactless meta engine block (MEB) is designed and experimentally demonstrated for twisting the linear momentum of sound emanating from a Helmholtz resonator-based metasurface into orbital angular momentum (OAM). The MEB is capable of hosting highly efficient excitations of eigenmodes carrying desired OAM whose Bessel acoustic intensity patterns are enhanced by over ten times compared to the incident wave. Thanks to this efficiency, bidirectional ultrasonic OAM is capable of driving loads at speeds up to 1000 rpm at 4 W and remarkable sound radiation torque levels. Moreover, the possibility of using arbitrarily shaped MEBs is also demonstrated by engineering its physical boundary condition based on an analytically derived criterion to guarantee the high twisting efficiency of man-made OAM. The results show how noninvasive driving of an ultrasonic motor can be made possible through appropriately designed momentum twisting, which opens the door to a new class of integrated mechanical devices solely powered by sound.
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Affiliation(s)
- Jingjing Liu
- Collaborative Innovation Center of Advanced Microstructures and Key Laboratory of Modern Acoustics, MOE, Institute of Acoustics, Department of Physics, Nanjing University, Nanjing, 210093, China
| | - Zhengwei Li
- Collaborative Innovation Center of Advanced Microstructures and Key Laboratory of Modern Acoustics, MOE, Institute of Acoustics, Department of Physics, Nanjing University, Nanjing, 210093, China
| | - Yujiang Ding
- Collaborative Innovation Center of Advanced Microstructures and Key Laboratory of Modern Acoustics, MOE, Institute of Acoustics, Department of Physics, Nanjing University, Nanjing, 210093, China
| | - An Chen
- Collaborative Innovation Center of Advanced Microstructures and Key Laboratory of Modern Acoustics, MOE, Institute of Acoustics, Department of Physics, Nanjing University, Nanjing, 210093, China
| | - Bin Liang
- Collaborative Innovation Center of Advanced Microstructures and Key Laboratory of Modern Acoustics, MOE, Institute of Acoustics, Department of Physics, Nanjing University, Nanjing, 210093, China
| | - Jing Yang
- Collaborative Innovation Center of Advanced Microstructures and Key Laboratory of Modern Acoustics, MOE, Institute of Acoustics, Department of Physics, Nanjing University, Nanjing, 210093, China
| | - Jian-Chun Cheng
- Collaborative Innovation Center of Advanced Microstructures and Key Laboratory of Modern Acoustics, MOE, Institute of Acoustics, Department of Physics, Nanjing University, Nanjing, 210093, China
| | - Johan Christensen
- Department of Physics, Universidad Carlos III de Madrid, Leganés, Madrid, ES-28916, Spain
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123
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A sound approach to advancing healthcare systems: the future of biomedical acoustics. Nat Commun 2022; 13:3459. [PMID: 35710904 PMCID: PMC9200942 DOI: 10.1038/s41467-022-31014-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 05/26/2022] [Indexed: 11/09/2022] Open
Abstract
Newly developed acoustic technologies are playing a transformational role in life science and biomedical applications ranging from the activation and inactivation of mechanosensitive ion channels for fundamental physiological processes to the development of contact-free, precise biofabrication protocols for tissue engineering and large-scale manufacturing of organoids. Here, we provide our perspective on the development of future acoustic technologies and their promise in addressing critical challenges in biomedicine.
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124
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P Weekers B, Rottenberg X, Lagae L, Rochus V. Rigorous analysis of the axial acoustic radiation force on a spherical object for single-beam acoustic tweezing applications. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2022; 151:3615. [PMID: 35778184 DOI: 10.1121/10.0011544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
Acoustic tweezers are increasingly utilized for the contactless manipulation of small particles. This paper provides a theoretical model demonstrating the acoustic manipulation capabilities of single-beam acoustic transducers. Analytical formulas are derived for the acoustic radiation force on an isotropic spherical object of arbitrary size, centered on a circular piston, simply supported and clamped radiator in an inviscid fluid. Using these results, the existence of a negative axial force pulling the object closer to the radiator is revealed and explored. These findings offer further insight into the feasibility of trapping objects in the near-field of a single-beam acoustic transducer. The calculations illustrate the trapping capabilities of the different emitters as a function of radiator size, particle size, and distance from the source and highlight the impact of radiator boundary conditions. Manipulation of a cell-like fluid sphere in water and an expanded polystyrene sphere in air are studied in more detail with results that are validated through finite element analysis. The developed theoretical model allows fast evaluation of acoustic radiation forces which could aid in the development of relatively simple and inexpensive contactless manipulation solutions.
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Affiliation(s)
- Bart P Weekers
- KU Leuven, Department of Physics and Astronomy, B-3001 Leuven, Belgium
| | | | - Liesbet Lagae
- KU Leuven, Department of Physics and Astronomy, B-3001 Leuven, Belgium
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125
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Han J, Saravanapavanantham M, Chua MR, Lang JH, Bulović V. A versatile acoustically active surface based on piezoelectric microstructures. MICROSYSTEMS & NANOENGINEERING 2022; 8:55. [PMID: 35646386 PMCID: PMC9135689 DOI: 10.1038/s41378-022-00384-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 03/03/2022] [Accepted: 04/11/2022] [Indexed: 06/15/2023]
Abstract
We demonstrate a versatile acoustically active surface consisting of an ensemble of piezoelectric microstructures that are capable of radiating and sensing acoustic waves. A freestanding microstructure array embossed in a single step on a flexible piezoelectric sheet of polyvinylidene fluoride (PVDF) leads to high-quality acoustic performance, which can be tuned by the design of the embossed microstructures. The high sensitivity and large bandwidth for sound generation demonstrated by this acoustically active surface outperform previously reported thin-film loudspeakers using PVDF, PVDF copolymers, or voided charged polymers without microstructures. We further explore the directivity of this device and its use on a curved surface. In addition, high-fidelity sound perception is demonstrated by the surface, enabling its microphonic application for voice recording and speaker recognition. The versatility, high-quality acoustic performance, minimal form factor, and scalability of future production of this acoustically active surface can lead to broad industrial and commercial adoption for this technology.
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Affiliation(s)
- Jinchi Han
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
| | - Mayuran Saravanapavanantham
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
| | - Matthew R. Chua
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
| | - Jeffrey H. Lang
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
| | - Vladimir Bulović
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
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126
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Baumgartner K, Mauritz SCF, Angermann S, Brugger MS, Westerhausen C. One-dimensional acoustic potential landscapes guide the neurite outgrowth and affect the viability of B35 neuroblastoma cells. Phys Biol 2022; 19. [PMID: 35580580 DOI: 10.1088/1478-3975/ac70a1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 05/17/2022] [Indexed: 11/11/2022]
Abstract
On the way towards neuronal stimulation and signalling, standing surface acoustic waves (SSAW) have become a widely used technique to create well-defined networks of living cells in vitro during the past years. An overall challenge in this research area is to maintain cell viability in long-term treatments long enough to observe changes in cellular functions. To close this gap, we here investigate SSAW-directed neurite outgrowth of B35 (neuroblastoma) cells in microchannels on LiNbO3 chips, employing one-dimensional pulsed and continuous MHz-order SSAW signals at different intensities for up to 40 hours. To increase the efficiency of future investigations, we explore the limits of applicable SSAW parameters by quantifying their viability and proliferation behaviour in this long-term setup. While cell viability is impaired for power levels above 15 dBm (32 mW), our investigations on SSAW-directed neurite outgrowth reveal a significant increase of neurites growing in preferential directions by up to 31.3 % after 30 hours of SSAW treatment.
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Affiliation(s)
- Kathrin Baumgartner
- Physiology, University of Augsburg, Universitaetsstrasse 1, Augsburg, 86159, GERMANY
| | - Sophie C F Mauritz
- University of Augsburg, Universitaetsstrasse 1, Augsburg, 86159, GERMANY
| | - Sebastian Angermann
- Physiology, University of Augsburg, Universitaetsstrasse 1, Augsburg, 86159, GERMANY
| | - Manuel S Brugger
- Institute of Physics, University of Augsburg, Universitaetsstraße 1, Augsburg, 86159, GERMANY
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127
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Abstract
Embryoids and organoids hold great promise for human biology and medicine. Herein, we discuss conceptual and technological frameworks useful for developing high-fidelity embryoids and organoids that display tissue- and organ-level phenotypes and functions, which are critically needed for decoding developmental programs and improving translational applications. Through dissecting the layers of inputs controlling mammalian embryogenesis, we review recent progress in reconstructing multiscale structural orders in embryoids and organoids. Bioengineering tools useful for multiscale, multimodal structural engineering of tissue- and organ-level cellular organization and microenvironment are also discussed to present integrative, bioengineering-directed approaches to achieve next-generation, high-fidelity embryoids and organoids.
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Affiliation(s)
- Yue Shao
- Institute of Biomechanics and Medical Engineering, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China; State Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, Yunnan 650500, China.
| | - Jianping Fu
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA; Department of Cell & Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA; Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
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128
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Chen J, Zeng Y, Zhou J, Wang X, Jia B, Miyan R, Zhang T, Sang W, Wang Y, Qiu H, Qu J, Ho HP, Gao BZ, Shao Y, Gu Y. Optothermophoretic flipping method for biomolecule interaction enhancement. Biosens Bioelectron 2022; 204:114084. [DOI: 10.1016/j.bios.2022.114084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 01/04/2022] [Accepted: 02/06/2022] [Indexed: 12/01/2022]
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129
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Li Y, Cai S, Shen H, Chen Y, Ge Z, Yang W. Recent advances in acoustic microfluidics and its exemplary applications. BIOMICROFLUIDICS 2022; 16:031502. [PMID: 35712527 PMCID: PMC9197543 DOI: 10.1063/5.0089051] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 05/24/2022] [Indexed: 05/14/2023]
Abstract
Acoustic-based microfluidics has been widely used in recent years for fundamental research due to its simple device design, biocompatibility, and contactless operation. In this article, the basic theory, typical devices, and technical applications of acoustic microfluidics technology are summarized. First, the theory of acoustic microfluidics is introduced from the classification of acoustic waves, acoustic radiation force, and streaming flow. Then, various applications of acoustic microfluidics including sorting, mixing, atomization, trapping, patterning, and acoustothermal heating are reviewed. Finally, the development trends of acoustic microfluidics in the future were summarized and looked forward to.
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Affiliation(s)
- Yue Li
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China
| | - Shuxiang Cai
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China
| | - Honglin Shen
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China
| | - Yibao Chen
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China
| | - Zhixing Ge
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
| | - Wenguang Yang
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China
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130
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Vakhrusheva A, Murashko A, Trifonova E, Efremov Y, Timashev P, Sokolova O. Role of Actin-binding Proteins in the Regulation of Cellular Mechanics. Eur J Cell Biol 2022; 101:151241. [DOI: 10.1016/j.ejcb.2022.151241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 04/18/2022] [Accepted: 05/19/2022] [Indexed: 12/25/2022] Open
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131
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Yang S, Tian Z, Wang Z, Rufo J, Li P, Mai J, Xia J, Bachman H, Huang PH, Wu M, Chen C, Lee LP, Huang TJ. Harmonic acoustics for dynamic and selective particle manipulation. NATURE MATERIALS 2022; 21:540-546. [PMID: 35332292 PMCID: PMC9200603 DOI: 10.1038/s41563-022-01210-8] [Citation(s) in RCA: 61] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 01/24/2022] [Indexed: 05/07/2023]
Abstract
Precise and selective manipulation of colloids and biological cells has long been motivated by applications in materials science, physics and the life sciences. Here we introduce our harmonic acoustics for a non-contact, dynamic, selective (HANDS) particle manipulation platform, which enables the reversible assembly of colloidal crystals or cells via the modulation of acoustic trapping positions with subwavelength resolution. We compose Fourier-synthesized harmonic waves to create soft acoustic lattices and colloidal crystals without using surface treatment or modifying their material properties. We have achieved active control of the lattice constant to dynamically modulate the interparticle distance in a high-throughput (>100 pairs), precise, selective and reversible manner. Furthermore, we apply this HANDS platform to quantify the intercellular adhesion forces among various cancer cell lines. Our biocompatible HANDS platform provides a highly versatile particle manipulation method that can handle soft matter and measure the interaction forces between living cells with high sensitivity.
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Affiliation(s)
- Shujie Yang
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA
| | - Zhenhua Tian
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA
| | - Zeyu Wang
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA
| | - Joseph Rufo
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA
| | - Peng Li
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, WV, USA
| | - John Mai
- Alfred E. Mann Institute for Biomedical Engineering, University of Southern California, Los Angeles, CA, USA
| | - Jianping Xia
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA
| | - Hunter Bachman
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA
| | - Po-Hsun Huang
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA
| | - Mengxi Wu
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA
| | - Chuyi Chen
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA
| | - Luke P Lee
- Renal Division and Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
- Department of Bioengineering, Department of Electrical Engineering and Computer Science, University of California at Berkeley, Berkeley, CA, USA.
- Institute of Quantum Biophysics, Department of Biophysics, Sungkyunkwan University, Suwon, Korea.
| | - Tony Jun Huang
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA.
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132
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Li S, Shi J, Zhang X. Study on acoustic radiation force of an elastic sphere in an off-axial Gaussian beam using localized approximation. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2022; 151:2602. [PMID: 35461475 DOI: 10.1121/10.0010240] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 03/28/2022] [Indexed: 06/14/2023]
Abstract
In this paper, the expansion coefficients of the off-axial Gaussian beam are obtained using the localized approximation and the translational addition theorem for spherical wave function. The three-dimensional acoustic radiation force of a sphere positioned in an off-axial Gaussian beam is derived. The axial acoustic radiation force of a rigid sphere is computed to verify the derived expressions. The effect of the position of a polystyrene sphere in an off-axial Gaussian beam on the transverse and axial acoustic radiation forces is studied to explore the changing law of particle acoustic manipulation using a Gaussian beam. The calculated results show that the axial force repels the polystyrene particle away from the center of the beam. However, for the transverse force, there is a negative acoustic radiation force at some positions, which is related to the position of the polystyrene sphere in the Gaussian beam, and the negative transverse forces usually pull the polystyrene particle toward the beam axis. In addition, the numerical simulations based on the finite element method are presented to validate the analytical theory, and the comparison results are in good agreement with each other. The study may provide a theoretical basis for the development of single-beam acoustic tweezers using a Gaussian beam.
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Affiliation(s)
- Shuyuan Li
- Shaanxi Key Laboratory of Ultrasonics, School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China
| | - Jingyao Shi
- Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Xiaofeng Zhang
- Shaanxi Key Laboratory of Ultrasonics, School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China
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133
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Zhong C, Jia Y, Jeong DC, Guo Y, Liu S. AcousNet: A Deep Learning Based Approach to Dynamic 3D Holographic Acoustic Field Generation From Phased Transducer Array. IEEE Robot Autom Lett 2022. [DOI: 10.1109/lra.2021.3130368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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134
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Liu P, Tian Z, Yang K, Naquin TD, Hao N, Huang H, Chen J, Ma Q, Bachman H, Zhang P, Xu X, Hu J, Huang TJ. Acoustofluidic black holes for multifunctional in-droplet particle manipulation. SCIENCE ADVANCES 2022; 8:eabm2592. [PMID: 35363512 PMCID: PMC10938576 DOI: 10.1126/sciadv.abm2592] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 02/10/2022] [Indexed: 06/14/2023]
Abstract
Acoustic black holes offer superior capabilities for slowing down and trapping acoustic waves for various applications such as metastructures, energy harvesting, and vibration and noise control. However, no studies have considered the linear and nonlinear effects of acoustic black holes on micro/nanoparticles in fluids. This study presents acoustofluidic black holes (AFBHs) that leverage controlled interactions between AFBH-trapped acoustic wave energy and particles in droplets to enable versatile particle manipulation functionalities, such as translation, concentration, and patterning of particles. We investigated the AFBH-enabled wave energy trapping and wavelength shrinking effects, as well as the trapped wave energy-induced acoustic radiation forces on particles and acoustic streaming in droplets. This study not only fills the gap between the emerging fields of acoustofluidics and acoustic black holes but also leads to a class of AFBH-based in-droplet particle manipulation toolsets with great potential for many applications, such as biosensing, point-of-care testing, and drug screening.
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Affiliation(s)
- Pengzhan Liu
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
- State Key Lab of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Zhenhua Tian
- Department of Aerospace Engineering, Mississippi State University, Mississippi State, MS 39762, USA
| | - Kaichun Yang
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
| | - Ty Downing Naquin
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
| | - Nanjing Hao
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
| | - Huiyu Huang
- State Key Lab of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Jinyan Chen
- State Key Lab of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Qiuxia Ma
- State Key Lab of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Hunter Bachman
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
| | - Peiran Zhang
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
| | - Xiahong Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products; Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Junhui Hu
- State Key Lab of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Tony Jun Huang
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
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135
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Jooss VM, Bolten JS, Huwyler J, Ahmed D. In vivo acoustic manipulation of microparticles in zebrafish embryos. SCIENCE ADVANCES 2022; 8:eabm2785. [PMID: 35333569 PMCID: PMC8956268 DOI: 10.1126/sciadv.abm2785] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
In vivo micromanipulation using ultrasound is an exciting technology with promises for cancer research, brain research, vasculature biology, diseases, and treatment development. In the present work, we demonstrate in vivo manipulation of gas-filled microparticles using zebrafish embryos as a vertebrate model system. Micromanipulation methods often are conducted in vitro, and they do not fully reflect the complex environment associated in vivo. Four piezoelectric actuators were positioned orthogonally to each other around an off-centered fluidic channel that allowed for two-dimensional manipulation of intravenously injected microbubbles. Selective manipulation of microbubbles inside a blood vessel with micrometer precision was achieved without interfering with circulating blood cells. Last, we studied the viability of zebrafish embryos subjected to the acoustic field. This successful high-precision, in vivo acoustic manipulation of intravenously injected microbubbles offers potentially promising therapeutic options.
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Affiliation(s)
- Viktor Manuel Jooss
- Acoustics Robotics Systems Lab (ARSL), ETH-Zürich, Rüschlikon CH-8803, Switzerland
| | - Jan Stephan Bolten
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, Basel CH-4056, Switzerland
| | - Jörg Huwyler
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, Basel CH-4056, Switzerland
| | - Daniel Ahmed
- Acoustics Robotics Systems Lab (ARSL), ETH-Zürich, Rüschlikon CH-8803, Switzerland
- Corresponding author.
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136
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Deb R, Sarma B, Dalal A. Magnetowetting dynamics of sessile ferrofluid droplets: a review. SOFT MATTER 2022; 18:2287-2324. [PMID: 35244655 DOI: 10.1039/d1sm01569a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The fascinating behavior of ferrofluids in a magnetic field has been intriguing researchers for many years. With the advancement in digital microfluidics, ferrofluid droplets have been extensively used in different applications ranging from biomedical to mechanical systems. Notably, the magnetic field can change the wetting dynamics of sessile ferrofluid droplets, leading to a plethora of interesting hydrodynamic phenomena. In the recent past, the spatiotemporal evolution of the droplet shape and contact line dynamics of a ferrofluid droplet in different magnetowetting scenarios has been explored widely. The relevant studies elucidate several critical aspects, such as the role of magnetic nanoparticles, carrier fluid, and the interaction of the magnetic fluid with the solid surface, among many others. Hence a systematic review of the progress made in understanding the fundamental and practical aspects of magnetowetting in the past decade (2010-2020) would be a helpful resource to the scientific community in the near future. Drawn by this motivation, an honest effort has been made in this Review to highlight the significant scientific findings concerning the sessile droplet magnetowetting phenomena within the timeline of interest. Several cutting-edge applications developed from the scientific findings in the purview of magnetowetting have also been discussed before outlining the conclusions and future areas of scope.
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Affiliation(s)
- Rupresha Deb
- Department of Mechanical Engineering, Indian Institute of Technology Guwahati, Assam 781 039, India.
| | - Bhaskarjyoti Sarma
- Department of Mechanical Engineering, Indian Institute of Technology Guwahati, Assam 781 039, India.
| | - Amaresh Dalal
- Department of Mechanical Engineering, Indian Institute of Technology Guwahati, Assam 781 039, India.
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137
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Quelennec A, Gorman JJ, Reyes DR. Amontons-Coulomb-like slip dynamics in acousto-microfluidics. Nat Commun 2022; 13:1429. [PMID: 35318314 PMCID: PMC8941090 DOI: 10.1038/s41467-022-28823-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 02/09/2022] [Indexed: 11/21/2022] Open
Abstract
Acousto-microfluidics uses acoustic waves to manipulate and sense particles and fluids, and its integration into biomedical technologies has grown substantially in recent years. Fluid manipulation and measurement with surface acoustic waves rely on the efficient transmission of acoustic energy from the device to the fluid. Acoustic transmission into the fluid can be reduced significantly by slip at the fluid-solid interface, but, up until now, this phenomenon has been widely neglected during the design of acousto-microfluidic devices. Here our interpretation supports that the slip dynamics at the liquid-solid interface in acousto-microfluidics are highly analogous to the Amontons-Coulomb laws for dry friction between solids. In particular, there is a relationship between the local fluid pressure and shear stress, where we show that pressure-shear stress conditions can be divided into slip and no-slip regions, similar to the cone of friction found in dry friction. This improved understanding of slip will enable more reliable and predictable acousto-microfluidic technologies, thus expanding their use in new applications in biology and medicine. Acoustic waves can be used to manipulate particles and fluids in biomedical applications. The authors show that slip at the fluid-solid interface, characterized by a lower acoustic transmission into the fluid, is similar to Amontons-Coulomb friction, as found between solids.
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Affiliation(s)
- Aurore Quelennec
- National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
| | - Jason J Gorman
- National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
| | - Darwin R Reyes
- National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA.
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138
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Wang Y, Pan H, Mei D, Xu C, Weng W. Programmable motion control and trajectory manipulation of microparticles through tri-directional symmetrical acoustic tweezers. LAB ON A CHIP 2022; 22:1149-1161. [PMID: 35134105 DOI: 10.1039/d2lc00046f] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Acoustic tweezers based on travelling surface acoustic waves (TSAWs) have the potential for contactless trajectory manipulation and motion-parameter regulation of microparticles in biological and microfluidic applications. Here, we present a novel design of a tri-directional symmetrical acoustic tweezers device that enables the precise manipulation of linear, clockwise, and anticlockwise trajectories of microparticles. By switching the excitation combinations of interdigital electrodes (IDTs), various shape patterns of acoustic pressure fields can be formed to capture and steer microparticles accurately according to pre-defined trajectories. Numerical simulations and experimental tests were conducted in this study. By adjusting the input electric signals and the fluid's viscosity, the device is able to manipulate microparticles of various forms as well as brine shrimp egg cells with the accurate modulation of motion parameters. The results show that the proposed programmable design possesses low-cost, compact, non-contact, and high biocompatibility benefits, with the capacity to accurately manage microparticles in a range of motion trajectories, independent of their physical and/or chemical characteristics. Thus, our design has strong potential applications in chemical composition analysis, drug delivery, and cell assembly.
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Affiliation(s)
- Yancheng Wang
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China.
| | - Hemin Pan
- Key Laboratory of Advanced Manufacturing Technology of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Deqing Mei
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China.
| | - Chengyao Xu
- Key Laboratory of Advanced Manufacturing Technology of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Wanyu Weng
- Key Laboratory of Advanced Manufacturing Technology of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China
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139
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Chen Y, Zhu H, Wang Y, Yu H. Binary amplitude switch for photoacoustic transducer toward dynamic spatial acoustic field modulation. OPTICS LETTERS 2022; 47:738-741. [PMID: 35167513 DOI: 10.1364/ol.446714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 12/22/2021] [Indexed: 06/14/2023]
Abstract
Photoacoustic (PA) transducers are an attractive method of producing high-amplitude, high-frequency, broad-bandwidth ultrasound signals with excellent immunity to electromagnetic interference, when compared with their traditional electroacoustic counterparts. However, the lack of effective control over the spatial sound field prohibits PA transducer technology from further widespread application. This paper presents the first, to the best of our knowledge, experimental study on the dynamic spatial ultrasound modulation strategy for the use of PA transducers, in which a novel PA transducer element is designed. This consists of a suspended compound PA conversion film, whose backing condition can be switched between air and glass through pneumatic actuation to create destructive and constructive acoustic wave interference, respectively. As a result, nearly an order of magnitude contrast in the output acoustic amplitude can be obtained by switching the device's backing condition given the same laser excitation, thus achieving a binary amplitude tuning. Furthermore, a linear PA transducer array consisting of three independently controllable elements is used for a proof-of-concept demonstration of the dynamic spatial sound field manipulation. To the best of the authors' knowledge, this is the first time that such a unique capability has been successfully applied to PA transducer technology.
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140
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Mokhtare A, Davaji B, Xie P, Yaghoobi M, Rosenwaks Z, Lal A, Palermo G, Abbaspourrad A. Non-contact ultrasound oocyte denudation. LAB ON A CHIP 2022; 22:777-792. [PMID: 35075469 DOI: 10.1039/d1lc00715g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Cumulus removal (CR) is a central prerequisite step for many protocols involved in the assisted reproductive technology (ART) such as intracytoplasmic sperm injection (ICSI) and preimplantation genetic testing (PGT). The most prevalent CR technique is based upon laborious manual pipetting, which suffers from inter-operator variability and therefore a lack of standardization. Automating CR procedures would alleviate many of these challenges, improving the odds of a successful ART or PGT outcome. In this study, a chip-scale ultrasonic device consisting of four interdigitated transducers (IDT) on a lithium niobate substrate has been engineered to deliver megahertz (MHz) range ultrasound to perform denudation. The acoustic streaming and acoustic radiation force agitate COCs inside a microwell placed on top of the LiNbO3 substrate to remove the cumulus cells from the oocytes. This paper demonstrates the capability and safety of the denudation procedure utilizing surface acoustic wave (SAW), achieving automation of this delicate manual procedure and paving the steps toward improved and standardized oocyte manipulation.
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Affiliation(s)
- Amir Mokhtare
- Department of Food Science, Cornell University, Stocking Hall, Ithaca, NY, 14853, USA.
| | - Benyamin Davaji
- School of Electrical and Computer Engineering, Cornell University, Ithaca, NY, USA
| | - Philip Xie
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Mohammad Yaghoobi
- Department of Food Science, Cornell University, Stocking Hall, Ithaca, NY, 14853, USA.
| | - Zev Rosenwaks
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Amit Lal
- School of Electrical and Computer Engineering, Cornell University, Ithaca, NY, USA
| | - Gianpiero Palermo
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Alireza Abbaspourrad
- Department of Food Science, Cornell University, Stocking Hall, Ithaca, NY, 14853, USA.
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141
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Abstract
Progress in optical manipulation has stimulated remarkable advances in a wide range of fields, including materials science, robotics, medical engineering, and nanotechnology. This Review focuses on an emerging class of optical manipulation techniques, termed heat-mediated optical manipulation. In comparison to conventional optical tweezers that rely on a tightly focused laser beam to trap objects, heat-mediated optical manipulation techniques exploit tailorable optothermo-matter interactions and rich mass transport dynamics to enable versatile control of matter of various compositions, shapes, and sizes. In addition to conventional tweezing, more distinct manipulation modes, including optothermal pulling, nudging, rotating, swimming, oscillating, and walking, have been demonstrated to enhance the functionalities using simple and low-power optics. We start with an introduction to basic physics involved in heat-mediated optical manipulation, highlighting major working mechanisms underpinning a variety of manipulation techniques. Next, we categorize the heat-mediated optical manipulation techniques based on different working mechanisms and discuss working modes, capabilities, and applications for each technique. We conclude this Review with our outlook on current challenges and future opportunities in this rapidly evolving field of heat-mediated optical manipulation.
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Affiliation(s)
- Zhihan Chen
- Materials Science & Engineering Program, Texas Materials Institute, and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Jingang Li
- Materials Science & Engineering Program, Texas Materials Institute, and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Yuebing Zheng
- Materials Science & Engineering Program, Texas Materials Institute, and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
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142
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Peng YY, Yang ZZ, Zhang ZL, Zou XY, Tao C, Cheng JC. Tunable acoustic metasurface based on tunable piezoelectric composite structure. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2022; 151:838. [PMID: 35232122 DOI: 10.1121/10.0009379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 01/09/2022] [Indexed: 06/14/2023]
Abstract
Due to the potential engineering needs, the passive tunable metasurfaces with a high performance equivalent to the active phased array is worthy of research. Here, a passive ultrathin metasurface unit composed of a piezoelectric composite structure (PCS) connected to an external capacitor, which can modulate the phase of the transmitted acoustic waves at a deep subwavelength scale only by controlling the external capacitor but without changing the structure, is proposed. Then, a tunable acoustic metasurface composed of 20 identical PCSs is introduced to realize three acoustic functions, beam steering, beam focusing, and tweezer-like beam generating, just by changing the external capacitors. The phase-control abilities of the PCS unit and three functions of the designed metasurface are proved both numerically and experimentally. This study provides the possibility to design ultrathin tunable acoustic metasurfaces with the ability of precise control and passive materials.
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Affiliation(s)
- Yao-Yin Peng
- Key Laboratory of Modern Acoustics, Ministry of Education, Institute of Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, People's Republic of China
| | - Zhang-Zhao Yang
- Key Laboratory of Modern Acoustics, Ministry of Education, Institute of Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, People's Republic of China
| | - Zhi-Lei Zhang
- Key Laboratory of Modern Acoustics, Ministry of Education, Institute of Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, People's Republic of China
| | - Xin-Ye Zou
- Key Laboratory of Modern Acoustics, Ministry of Education, Institute of Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, People's Republic of China
| | - Chao Tao
- Key Laboratory of Modern Acoustics, Ministry of Education, Institute of Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, People's Republic of China
| | - Jian-Chun Cheng
- Key Laboratory of Modern Acoustics, Ministry of Education, Institute of Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, People's Republic of China
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143
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Xie Y, Liu X. Multifunctional manipulation of red blood cells using optical tweezers. JOURNAL OF BIOPHOTONICS 2022; 15:e202100315. [PMID: 34773382 DOI: 10.1002/jbio.202100315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/09/2021] [Accepted: 11/10/2021] [Indexed: 06/13/2023]
Abstract
Serving as natural vehicles to deliver oxygen throughout the whole body, red blood cells (RBCs) have been regarded as important indicators for biomedical analysis and clinical diagnosis. Various diseases can be induced due to the dysfunction of RBCs. Hence, a flexible tool is required to perform precise manipulation and quantitative characterization of their physiological mechanisms and viscoelastic properties. Optical tweezers have emerged as potential candidates due to their noncontact manipulation and femtonewton-precision measurements. This review aimed to highlight the recent advances in the multifunctional manipulation of RBCs using optical tweezers, including controllable deformation, dynamic stretching, RBC aggregation, blood separation and Raman characterization. Further, great attentions have been focused on the precise assembly of functional biophotonics devices with trapped RBCs, and a brief overview was offered for the growing interests to manipulate RBCs in vivo.
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Affiliation(s)
- Yanzheng Xie
- Jiangsu Vocational College of Medicine, Yancheng, China
| | - Xiaoshuai Liu
- Institute of Nanophotonics, Jinan University, Guangzhou, China
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144
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Sun W, Gao X, Lei H, Wang W, Cao Y. Biophysical Approaches for Applying and Measuring Biological Forces. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2105254. [PMID: 34923777 PMCID: PMC8844594 DOI: 10.1002/advs.202105254] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Indexed: 05/13/2023]
Abstract
Over the past decades, increasing evidence has indicated that mechanical loads can regulate the morphogenesis, proliferation, migration, and apoptosis of living cells. Investigations of how cells sense mechanical stimuli or the mechanotransduction mechanism is an active field of biomaterials and biophysics. Gaining a further understanding of mechanical regulation and depicting the mechanotransduction network inside cells require advanced experimental techniques and new theories. In this review, the fundamental principles of various experimental approaches that have been developed to characterize various types and magnitudes of forces experienced at the cellular and subcellular levels are summarized. The broad applications of these techniques are introduced with an emphasis on the difficulties in implementing these techniques in special biological systems. The advantages and disadvantages of each technique are discussed, which can guide readers to choose the most suitable technique for their questions. A perspective on future directions in this field is also provided. It is anticipated that technical advancement can be a driving force for the development of mechanobiology.
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Affiliation(s)
- Wenxu Sun
- School of SciencesNantong UniversityNantong226019P. R. China
| | - Xiang Gao
- Key Laboratory of Intelligent Optical Sensing and IntegrationNational Laboratory of Solid State Microstructureand Department of PhysicsCollaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing210023P. R. China
- Institute of Brain ScienceNanjing UniversityNanjing210023P. R. China
| | - Hai Lei
- Key Laboratory of Intelligent Optical Sensing and IntegrationNational Laboratory of Solid State Microstructureand Department of PhysicsCollaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing210023P. R. China
- Institute of Brain ScienceNanjing UniversityNanjing210023P. R. China
- Chemistry and Biomedicine Innovation CenterNanjing UniversityNanjing210023P. R. China
| | - Wei Wang
- Key Laboratory of Intelligent Optical Sensing and IntegrationNational Laboratory of Solid State Microstructureand Department of PhysicsCollaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing210023P. R. China
- Institute of Brain ScienceNanjing UniversityNanjing210023P. R. China
| | - Yi Cao
- Key Laboratory of Intelligent Optical Sensing and IntegrationNational Laboratory of Solid State Microstructureand Department of PhysicsCollaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing210023P. R. China
- Institute of Brain ScienceNanjing UniversityNanjing210023P. R. China
- MOE Key Laboratory of High Performance Polymer Materials and TechnologyDepartment of Polymer Science & EngineeringCollege of Chemistry & Chemical EngineeringNanjing UniversityNanjing210023P. R. China
- Chemistry and Biomedicine Innovation CenterNanjing UniversityNanjing210023P. R. China
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145
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Lin FS, Yang PW, Hsieh CC, Su HY, Chen LX, Li CY, Huang CH. Investigation of a Novel Acoustic Levitation Technique Using the Transition Period Between Acoustic Pulse Trains and Electrical Driving Signals. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2022; 69:769-778. [PMID: 34714744 DOI: 10.1109/tuffc.2021.3124278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Acoustic levitation is considered one of the most effective noncontact particle manipulation methods, along with aerodynamic, ferromagnetic, and optical levitation techniques. It is not restricted by the material properties of the target. However, existing acoustic levitation techniques have some drawbacks that limit their potential applications. Therefore, in this article, an innovative approach is proposed to manipulate objects more intuitively and freely. By taking advantage of the transition periods between the acoustic pulse trains and electrical driving signals, acoustic traps can be created by switching the acoustic focal spots rapidly. Since the high-energy-density points are not formed simultaneously, the computation of the acoustic field distribution with complicated mutual interference can be eliminated. Therefore, compared to the existing approaches that created acoustic traps by solving pressure distributions using iterative methods, the proposed method simplifies the computation of time delay and makes it possible to be solved even with a microcontroller. In this work, three experiments have been demonstrated successfully to prove the capability of the proposed method including lifting a Styrofoam sphere, transportation of a single target, and suspending two objects. Besides, simulations of the distributions of acoustic pressure, radiation force, and Gor'kov potential were conducted to confirm the presence of acoustic traps in the scenarios of lifting one and two objects. The proposed tactic should be considered effective since the results of the practical experiments and simulations support each other.
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146
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Xie Y, Becker R, Scott M, Bean K, Huang TJ. Addressing the global challenges of COVID-19 and other pulmonary diseases with microfluidic technology. ENGINEERING (BEIJING, CHINA) 2022; 24:S2095-8099(22)00015-7. [PMID: 35103108 PMCID: PMC8791846 DOI: 10.1016/j.eng.2022.01.003] [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: 06/16/2021] [Revised: 12/08/2021] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
COVID-19, an infectious pulmonary disease caused by the SARS-CoV-2 virus, has profoundly impacted the world, motivating researchers across a broad spectrum of academic disciplines to gain a deeper understanding and develop effective therapies to this disease. This article presents an engineering perspective on how microfluidic technologies may address some of the challenges presented by COVID-19 and other pulmonary diseases. In particular, this article highlights urgent needs in pulmonary medicine, with an emphasis on technological innovations in the microfluidic manipulation of particles and fluids, and how these innovations may contribute to the study, diagnosis, and therapy of pulmonary diseases.
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Affiliation(s)
- Yuliang Xie
- Roy J. Carver Department of Biomedical Engineering, College of Engineering, University of Iowa, Iowa City, IA, 52242, United States
| | - Ryan Becker
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, NC, 27710, United States
| | - Michael Scott
- Roy J. Carver Department of Biomedical Engineering, College of Engineering, University of Iowa, Iowa City, IA, 52242, United States
| | - Kayla Bean
- Roy J. Carver Department of Biomedical Engineering, College of Engineering, University of Iowa, Iowa City, IA, 52242, United States
| | - Tony Jun Huang
- Department of Mechanical Engineering and Materials Science, Pratt School of Engineering, Duke University, Durham, NC, 27710, United States
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147
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Quan Y, Fei C, Ren W, Wang L, Zhao J, Zhuang J, Zhao T, Li Z, Zheng C, Sun X, Zheng K, Wang Z, Ren MX, Niu G, Zhang N, Karaki T, Jiang Z, Wen L. Single-Beam Acoustic Tweezer Prepared by Lead-Free KNN-Based Textured Ceramics. MICROMACHINES 2022; 13:mi13020175. [PMID: 35208301 PMCID: PMC8879455 DOI: 10.3390/mi13020175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/18/2022] [Accepted: 01/24/2022] [Indexed: 02/04/2023]
Abstract
Acoustic tweezers for microparticle non-contact manipulation have attracted attention in the biomedical engineering field. The key components of acoustic tweezers are piezoelectric materials, which convert electrical energy to mechanical energy. The most widely used piezoelectric materials are lead-based materials. Because of the requirement of environmental protection, lead-free piezoelectric materials have been widely researched in past years. In our previous work, textured lead-free (K, Na)NbO3 (KNN)-based piezoelectric ceramics with high piezoelectric performance were prepared. In addition, the acoustic impedance of the KNN-based ceramics is lower than that of lead-based materials. The low acoustic impedance could improve the transmission efficiency of the mechanical energy between acoustic tweezers and water. In this work, acoustic tweezers were prepared to fill the gap between lead-free piezoelectric materials research and applications. The tweezers achieved 13 MHz center frequency and 89% −6 dB bandwidth. The −6 dB lateral and axial resolution of the tweezers were 195 μm and 114 μm, respectively. Furthermore, the map of acoustic pressure measurement and acoustic radiation calculation for the tweezers supported the trapping behavior for 100 μm diameter polystyrene microspheres. Moreover, the trapping and manipulation of the microspheres was achieved. These results suggest that the KNN-based acoustic tweezers have a great potential for further applications.
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Affiliation(s)
- Yi Quan
- School of Microelectronics, Xidian University, Xi’an 710071, China; (T.Z.); (Z.L.); (C.Z.); (X.S.)
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (L.W.); (J.Z.); (J.Z.); (K.Z.); (Z.W.); (G.N.); (N.Z.)
- Correspondence: (Y.Q.); (C.F.); (W.R.)
| | - Chunlong Fei
- School of Microelectronics, Xidian University, Xi’an 710071, China; (T.Z.); (Z.L.); (C.Z.); (X.S.)
- Correspondence: (Y.Q.); (C.F.); (W.R.)
| | - Wei Ren
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (L.W.); (J.Z.); (J.Z.); (K.Z.); (Z.W.); (G.N.); (N.Z.)
- Correspondence: (Y.Q.); (C.F.); (W.R.)
| | - Lingyan Wang
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (L.W.); (J.Z.); (J.Z.); (K.Z.); (Z.W.); (G.N.); (N.Z.)
| | - Jinyan Zhao
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (L.W.); (J.Z.); (J.Z.); (K.Z.); (Z.W.); (G.N.); (N.Z.)
| | - Jian Zhuang
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (L.W.); (J.Z.); (J.Z.); (K.Z.); (Z.W.); (G.N.); (N.Z.)
| | - Tianlong Zhao
- School of Microelectronics, Xidian University, Xi’an 710071, China; (T.Z.); (Z.L.); (C.Z.); (X.S.)
| | - Zhaoxi Li
- School of Microelectronics, Xidian University, Xi’an 710071, China; (T.Z.); (Z.L.); (C.Z.); (X.S.)
| | - Chenxi Zheng
- School of Microelectronics, Xidian University, Xi’an 710071, China; (T.Z.); (Z.L.); (C.Z.); (X.S.)
| | - Xinhao Sun
- School of Microelectronics, Xidian University, Xi’an 710071, China; (T.Z.); (Z.L.); (C.Z.); (X.S.)
| | - Kun Zheng
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (L.W.); (J.Z.); (J.Z.); (K.Z.); (Z.W.); (G.N.); (N.Z.)
| | - Zhe Wang
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (L.W.); (J.Z.); (J.Z.); (K.Z.); (Z.W.); (G.N.); (N.Z.)
| | - Matthew Xinhu Ren
- Biology Program, Faculty of Science, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada;
| | - Gang Niu
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (L.W.); (J.Z.); (J.Z.); (K.Z.); (Z.W.); (G.N.); (N.Z.)
| | - Nan Zhang
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (L.W.); (J.Z.); (J.Z.); (K.Z.); (Z.W.); (G.N.); (N.Z.)
| | - Tomoaki Karaki
- Department of Intelligent Systems Design Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu 939-0398, Toyama, Japan;
| | - Zhishui Jiang
- Guangdong JC Technological Innovation Electronics Co., Ltd., Zhaoqing 526000, China; (Z.J.); (L.W.)
| | - Li Wen
- Guangdong JC Technological Innovation Electronics Co., Ltd., Zhaoqing 526000, China; (Z.J.); (L.W.)
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148
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Hao N, Wang Z, Liu P, Becker R, Yang S, Yang K, Pei Z, Zhang P, Xia J, Shen L, Wang L, Welsh-Bohmer KA, Sanders L, Lee LP, Huang TJ. Acoustofluidic multimodal diagnostic system for Alzheimer's disease. Biosens Bioelectron 2022; 196:113730. [PMID: 34736099 PMCID: PMC8643320 DOI: 10.1016/j.bios.2021.113730] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 10/13/2021] [Accepted: 10/23/2021] [Indexed: 02/08/2023]
Abstract
Alzheimer's disease (AD) is a progressive and irreversible neurodegenerative brain disorder that affects tens of millions of older adults worldwide and has significant economic and societal impacts. Despite its prevalence and severity, early diagnosis of AD remains a considerable challenge. Here we report an integrated acoustofluidics-based diagnostic system (ADx), which combines triple functions of acoustics, microfluidics, and orthogonal biosensors for clinically accurate, sensitive, and rapid detection of AD biomarkers from human plasma. We design and fabricate a surface acoustic wave-based acoustofluidic separation device to isolate and purify AD biomarkers to increase the signal-to-noise ratio. Multimodal biosensors within the integrated ADx are fabricated by in-situ patterning of the ZnO nanorod array and deposition of Ag nanoparticles onto the ZnO nanorods for surface-enhanced Raman scattering (SERS) and electrochemical immunosensors. We obtain the label-free detections of SERS and electrochemical immunoassay of clinical plasma samples from AD patients and healthy controls with high sensitivity and specificity. We believe that this efficient integration provides promising solutions for the early diagnosis of AD.
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Affiliation(s)
- Nanjing Hao
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Zeyu Wang
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Pengzhan Liu
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Ryan Becker
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Shujie Yang
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Kaichun Yang
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Zhichao Pei
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Peiran Zhang
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Jianping Xia
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Liang Shen
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Lin Wang
- Ascent Bio-Nano Technologies, Inc., Morrisville, NC, 27560, USA
| | | | - Laurie Sanders
- Department of Neurology, Duke University Medical Center, Durham, NC, 27710, USA
| | - Luke P Lee
- Renal Division and Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA; Department of Bioengineering, Department of Electrical Engineering and Computer Science, University of California at Berkeley, Berkeley, CA, 94720, USA; Institute of Quantum Biophysics, Department of Biophysics, Sungkyunkwan University, Suwon, 16419, South Korea
| | - Tony Jun Huang
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA.
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149
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Yang Y, Ma T, Zhang Q, Huang J, Hu Q, Li Y, Wang C, Zheng H. 3D Acoustic Manipulation of Living Cells and Organisms Based on 2D Array. IEEE Trans Biomed Eng 2022; 69:2342-2352. [PMID: 35025736 DOI: 10.1109/tbme.2022.3142774] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Flexible manipulation techniques for living cells and organisms are extremely useful tools for fundamental biomedical and life science research. Acoustic tweezers, which permit non-contact, label-free manipulation, are particularly suited to micromanipulation tasks as they provide a large acoustic radiation force and can be applied in various media. Here, we describe the design and fabrication of a 3 MHz, 64-element (8 8), 2D planar ultrasound array that realizes the multidimensional translation, rotation, orientation, and levitation of living cells and organisms. The focusing vortex and twin fields are generated using the holographic acoustic elements framework method. We demonstrate that the eggs and larvae of brine shrimp can be translated along a preset trajectory by controlling the central position of the vortex. By multiplexing counterclockwise vortices, clockwise vortices, and twin trap fields in a time sequence, the rotation direction of the shrimp eggs can be switched in real time, while non-spherical larvae can be reoriented. Moreover, the reflection of the acoustic beam can lift eggs and larvae from the bottom of the culture dish and further manipulate them in the vertical and horizontal directions. Additionally, we present quantitative analyses of the relationships between the shrimp-egg rotation frequency and the focal depth, topological charge of the vortex, and excitation voltage. These results indicate that acoustic tweezers based on 2D matrix arrays can realize complex and selective manipulation of living cells and organisms, thereby demonstrating their value for advancing research in the fields of cell assembly, tissue engineering, and micro-robot driving.
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150
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Bakhtiari S, Manshadi MKD, Mansoorifar A, Beskok A. A Microfluidic Dielectric Spectroscopy System for Characterization of Biological Cells in Physiological Media. SENSORS (BASEL, SWITZERLAND) 2022; 22:463. [PMID: 35062423 PMCID: PMC8779508 DOI: 10.3390/s22020463] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 12/31/2021] [Accepted: 01/05/2022] [Indexed: 02/04/2023]
Abstract
Dielectric spectroscopy (DS) is a promising cell screening method that can be used for diagnostic and drug discovery purposes. The primary challenge of using DS in physiological buffers is the electrode polarization (EP) that overwhelms the impedance signal within a large frequency range. These effects further amplify with the miniaturization of the measurement electrodes. In this study, we present a microfluidic system and the associated equivalent circuit models for real-time measurements of cell membrane capacitance and cytoplasm resistance in physiological buffers with 10 s increments. The current device captures several hundreds of biological cells in individual microwells through gravitational settling and measures the system's impedance using microelectrodes covered with dendritic gold nanostructures. Using PC-3 cells (a highly metastatic prostate cancer cell line) suspended in cell growth media (CGM), we demonstrate stable measurements of cell membrane capacitance and cytoplasm resistance in the device for over 15 min. We also describe a consistent application of the equivalent circuit model, starting from the reference measurements used to determine the system parameters. The circuit model is tested using devices with varying dimensions, and the obtained cell parameters between different devices are nearly identical. Further analyses of the impedance data have shown that accurate cell membrane capacitance and cytoplasm resistance can be extracted using a limited number of measurements in the 5 MHz to 10 MHz range. This will potentially reduce the timescale required for real-time DS measurements below 1 s. Overall, the new microfluidic device can be used for the dielectric characterization of biological cells in physiological buffers for various cell screening applications.
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Affiliation(s)
| | | | | | - Ali Beskok
- Mechanical Engineering Department, Southern Methodist University, Dallas, TX 75275, USA; (S.B.); (M.K.D.M.); (A.M.)
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