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Cai Y, Li Z, Sun C, Zhao X, Wu S, Huang G, Tang S, Dai P, Wei X, You H. A centrifugal-driven spiral microchannel microfiltration chip for emulsion and deformable particle sorting. LAB ON A CHIP 2024; 24:3738-3751. [PMID: 38978468 DOI: 10.1039/d4lc00260a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Droplet sorting and enrichment, as a prominent field within microfluidic technology, represent a pivotal stage in the manipulation of droplets and particles. In recent times, droplet sorting methods based on lab-on-disk (LOD) have garnered significant interest among researchers for their inherent merits, including high throughput, ease of operation, seamless device integration, and independence from supplementary driving forces. This study introduces a centrifugal force-driven microfluidic chip comprising spiral microchannels. The chip incorporates microhole arrays along the sidewall of the spiral channels, enabling size-based sorting and enrichment of microdroplets under the influence of multiple forces. Firstly, a comparative analysis was performed to assess the influence of the separation port structure and rotational speed on efficiency, and a mechanical modeling approach was employed to conduct kinetic analyses of droplet behavior during instantaneous separation. Those findings demonstrated a good agreement with the experimental results at ω < 100 rpm. Subsequently, sorting experiments on homogeneous droplets indicated that repetitive sorting could increase the recovery ratios, RT(α), of high-concentration droplets (20.7%) from 35.3% to over 80%. We also conducted a sorting experiment on three-component homogeneous-phase emulsions using a serially connected chip array, and the sorting throughput was 0.58 mL min-1. As a result, the RT(α) for 60 and 160 μm droplets were 99.4% and 88.9%, respectively. Lastly, we conducted elution experiments and dual-sample sorting on a single chip, and the fluorescence results demonstrated that this study provided an efficient and non-cross-contaminating sorting method for non-homogenous phase multi-sample microreactor units.
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Affiliation(s)
- Yongchao Cai
- School of Mechanical Engineering, Guangxi University, Nanning, Guangxi, China.
| | - Zekun Li
- School of Mechanical Engineering, Guangxi University, Nanning, Guangxi, China.
| | - Cuimin Sun
- School of Computer, Electronics and Information, Guangxi University, Nanning, Guangxi, China.
| | - Xuan Zhao
- School of Mechanical Engineering, Guangxi University, Nanning, Guangxi, China.
| | - Shixiong Wu
- School of Mechanical Engineering, Guangxi University, Nanning, Guangxi, China.
| | - Guangyong Huang
- School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou, Guangxi, China
| | - Shengchang Tang
- School of Mechanical Engineering, Guangxi University, Nanning, Guangxi, China.
| | - Peng Dai
- School of Mechanical Engineering, Guangxi University, Nanning, Guangxi, China.
| | - Xiangfu Wei
- School of Mechanical Engineering, Guangxi University, Nanning, Guangxi, China.
| | - Hui You
- School of Mechanical Engineering, Guangxi University, Nanning, Guangxi, China.
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Zhou S, Tan J, Li K, Zhang G, Zheng H, Wang H, Wang W, Liu H, Liu S. Study on a Noncontact Microdroplet Separation Method under the Action of Corona Discharge. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:853-859. [PMID: 38146180 DOI: 10.1021/acs.langmuir.3c03035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
Precision manipulation of various liquids is essential in many fields such as various thermal, optical, and medical applications. This paper proposes an effective noncontact microdroplet separation method that is based on the action of corona discharge. A blade-plate electrode is constructed to generate an ionic wind, thereby enabling the droplet to be separated according to the shape of the blade electrode. Line, curve, S-shape, and parallel separation of the droplet can be realized in the experiment setup. Furthermore, experiment parameters, including the driving voltage, cutting speed, the distance of the upper and lower electrodes, cutting depth, etc., are discussed. Experimental results show that the proposed method is feasible and effective and can be used in application scenarios that require precise manipulation of droplets.
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Affiliation(s)
- Shangru Zhou
- College of Electromechanical Engineering, Changsha University, Changsha 410022, China
- Hunan Engineering Research Center of Research and Development of Degradable Materials and Molding Technology, Changsha University, Changsha 410022, China
| | - Jiahao Tan
- College of Electromechanical Engineering, Changsha University, Changsha 410022, China
| | - Kun Li
- College of Electromechanical Engineering, Changsha University, Changsha 410022, China
| | - Gaofeng Zhang
- College of Electromechanical Engineering, Changsha University, Changsha 410022, China
| | - Huai Zheng
- School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, China
| | - Hui Wang
- College of Electromechanical Engineering, Changsha University, Changsha 410022, China
- Hunan Engineering Research Center of Research and Development of Degradable Materials and Molding Technology, Changsha University, Changsha 410022, China
| | - Wanrong Wang
- College of Electromechanical Engineering, Changsha University, Changsha 410022, China
| | - Haojie Liu
- College of Electromechanical Engineering, Changsha University, Changsha 410022, China
| | - Sheng Liu
- School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, China
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Pandian K, Matsui M, Hankemeier T, Ali A, Okubo-Kurihara E. Advances in single-cell metabolomics to unravel cellular heterogeneity in plant biology. PLANT PHYSIOLOGY 2023; 193:949-965. [PMID: 37338502 PMCID: PMC10517197 DOI: 10.1093/plphys/kiad357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 05/03/2023] [Accepted: 05/17/2023] [Indexed: 06/21/2023]
Abstract
Single-cell metabolomics is a powerful tool that can reveal cellular heterogeneity and can elucidate the mechanisms of biological phenomena in detail. It is a promising approach in studying plants, especially when cellular heterogeneity has an impact on different biological processes. In addition, metabolomics, which can be regarded as a detailed phenotypic analysis, is expected to answer previously unrequited questions which will lead to expansion of crop production, increased understanding of resistance to diseases, and in other applications as well. In this review, we will introduce the flow of sample acquisition and single-cell techniques to facilitate the adoption of single-cell metabolomics. Furthermore, the applications of single-cell metabolomics will be summarized and reviewed.
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Affiliation(s)
- Kanchana Pandian
- Metabolomics and Analytics Centre, Leiden Academic Centre for Drug Research, Leiden University, Einstein Road 55, 2333 CC Leiden, The Netherlands
| | - Minami Matsui
- RIKEN, Center for Sustainable Resource Science, Kanagawa 230-0045, Japan
| | - Thomas Hankemeier
- Metabolomics and Analytics Centre, Leiden Academic Centre for Drug Research, Leiden University, Einstein Road 55, 2333 CC Leiden, The Netherlands
| | - Ahmed Ali
- Metabolomics and Analytics Centre, Leiden Academic Centre for Drug Research, Leiden University, Einstein Road 55, 2333 CC Leiden, The Netherlands
| | - Emiko Okubo-Kurihara
- RIKEN, Center for Sustainable Resource Science, Kanagawa 230-0045, Japan
- College of Science, Rikkyo University, Tokyo 171-8501, Japan
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Ghosh AB, Atta A. Mixing Enhancement of Newtonian Liquids in a Curvature Induced Split and Recombine Micromixer. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c04131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Affiliation(s)
- Amritendu Bhuson Ghosh
- Multiscale Computational Fluid Dynamics (mCFD) Laboratory, Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302, India
| | - Arnab Atta
- Multiscale Computational Fluid Dynamics (mCFD) Laboratory, Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302, India
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Ali M, Park J. Ultrasonic surface acoustic wave-assisted separation of microscale droplets with varying acoustic impedance. ULTRASONICS SONOCHEMISTRY 2023; 93:106305. [PMID: 36706667 PMCID: PMC9938309 DOI: 10.1016/j.ultsonch.2023.106305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 01/15/2023] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
In droplet-based microfluidic platforms, precise separation of microscale droplets of different chemical composition is increasingly necessary for high-throughput combinatorial chemistry in drug discovery and screening assays. A variety of droplet sorting methods have been proposed, in which droplets of the same kind are translocated. However, there has been relatively less effort in developing techniques to separate the uniform-sized droplets of different chemical composition. Most of the previous droplet sorting or separation techniques either rely on the droplet size for the separation marker or adopt on-demand application of a force field for the droplet sorting or separation. The existing droplet microfluidic separation techniques based on the in-droplet chemical composition are still in infancy because of the technical difficulties. In this study, we propose an acoustofluidic method to simultaneously separate microscale droplets of the same volume and dissimilar acoustic impedance using ultrasonic surface acoustic wave (SAW)-induced acoustic radiation force (ARF). For extensive investigation on the SAW-induced ARF acting on both cylindrical and spherical droplets, we first performed a set of the droplet sorting experiments under varying conditions of acoustic impedance of the dispersed phase fluid, droplet velocity, and wave amplitude. Moreover, for elucidation of the underlying physics, a new dimensionless number ARD was introduced, which was defined as the ratio of the ARF to the drag force acting on the droplets. The experimental results were comparatively analyzed by using a ray acoustics approach and found to be in good agreement with the theoretical estimation. Based on the findings, we successfully demonstrated the simultaneous separation of uniform-sized droplets of the different acoustic impedance under continuous application of the acoustic field in a label-free and detection-free manner. Insomuch as on-chip, precise separation of multiple kinds of droplets is critical in many droplet microfluidic applications, the proposed acoustofluidic approach will provide new prospects for microscale droplet separation.
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Affiliation(s)
- Mushtaq Ali
- Department of Mechanical Engineering, Chonnam National University, Yongbong-ro 77, Buk-gu, Gwangju 61186, Republic of Korea
| | - Jinsoo Park
- Department of Mechanical Engineering, Chonnam National University, Yongbong-ro 77, Buk-gu, Gwangju 61186, Republic of Korea.
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Khobaib K, Rozynek Z, Hornowski T. Mechanical properties of particle-covered droplets probed by nonuniform electric field. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Mea H, Wan J. Microfluidics-enabled functional 3D printing. BIOMICROFLUIDICS 2022; 16:021501. [PMID: 35282033 PMCID: PMC8896890 DOI: 10.1063/5.0083673] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 02/18/2022] [Indexed: 05/14/2023]
Abstract
Microfluidic technology has established itself as a powerful tool to enable highly precise spatiotemporal control over fluid streams for mixing, separations, biochemical reactions, and material synthesis. 3D printing technologies such as extrusion-based printing, inkjet, and stereolithography share similar length scales and fundamentals of fluid handling with microfluidics. The advanced fluidic manipulation capabilities afforded by microfluidics can thus be potentially leveraged to enhance the performance of existing 3D printing technologies or even develop new approaches to additive manufacturing. This review discusses recent developments in integrating microfluidic elements with several well-established 3D printing technologies, highlighting the trend of using microfluidic approaches to achieve functional and multimaterial 3D printing as well as to identify potential future research directions in this emergent area.
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Affiliation(s)
- H. Mea
- Department of Chemical Engineering, University of California at Davis, Davis, California 95616, USA
| | - J. Wan
- Department of Chemical Engineering, University of California at Davis, Davis, California 95616, USA
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Nigam KDP, Ranade VV. I&EC Research Special Issue on Fluidic Devices without Moving Parts. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00710] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- K. D. P. Nigam
- Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi, India
- Tecnologico de Monterrey, Monterrey, Nuevo León 64849, Mexico
| | - Vivek V. Ranade
- Bernal Institute, University of Limerick, Limerick, Ireland
- School of Chemistry and Chemical Engineering, Queen’s University Belfast, Belfast, United Kingdom
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