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Hu S, Wang Y, Wang Y, Chen X, Tong R. Dielectrophoretic separation and purification: From colloid and biological particles to droplets. J Chromatogr A 2024; 1731:465155. [PMID: 39032216 DOI: 10.1016/j.chroma.2024.465155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 07/06/2024] [Accepted: 07/08/2024] [Indexed: 07/22/2024]
Abstract
It is indispensable to realize the high level of purification and separation, so that objective particles, such as malignant cells, harmful bacteria, and special proteins or biological molecules, could satisfy the high precise measurement in the pharmaceutical analysis, clinical diagnosis, targeted therapy, and food defense. In addition, this could reveal the intrinsic nature and evolution mechanisms of individual biological variations. Consequently, many techniques related to optical tweezers, microfluidics, acoustophoresis, and electrokinetics can be broadly used to achieve micro- and nano-scale particle separations. Dielectrophoresis (DEP) has been used for various manipulation, concentration, transport, and separation processes of biological particles owing to its early development, mature theory, low cost, and high throughput. Although numerous reviews have discussed the biological applications of DEP techniques, comprehensive descriptions of micro- and nano-scale particle separations feature less frequently in the literature. Therefore, this review summarizes the current state of particle separation attention to relevant technological developments and innovation, including theoretical simulation, microchannel structure, electrode material, pattern and its layout. Moreover, a brief overview of separation applications using DEP in combination with other technologies is also provided. Finally, conclusions, future guidelines, and suggestions for potential promotion are highlighted.
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Affiliation(s)
- Sheng Hu
- College of Information Science and Engineering, Northeastern University, Shenyang, China; Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Qinhuangdao, 066004, China.
| | - Yangcheng Wang
- College of Information Science and Engineering, Northeastern University, Shenyang, China
| | - Yanzhe Wang
- Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Qinhuangdao, 066004, China
| | - Xiaoming Chen
- College of Information Science and Engineering, Northeastern University, Shenyang, China; Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Qinhuangdao, 066004, China
| | - Ruijie Tong
- College of Information Science and Engineering, Northeastern University, Shenyang, China; Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Qinhuangdao, 066004, China
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Kordzadeh-Kermani V, Ashrafizadeh SN, Madadelahi M. Dielectrophoretic separation/classification/focusing of microparticles using electrified lab-on-a-disc platforms. Anal Chim Acta 2024; 1310:342719. [PMID: 38811136 DOI: 10.1016/j.aca.2024.342719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 05/01/2024] [Accepted: 05/10/2024] [Indexed: 05/31/2024]
Abstract
BACKGROUND Separation, classification, and focusing of microparticles are essential issues in microfluidic devices that can be implemented in two categories: using labeling and label-free methods. Label-free methods differentiate microparticles based on their inherent properties, including size, density, shape, electrical conductivity/permittivity, and magnetic susceptibility. Dielectrophoresis is an advantageous label-free technique for this objective. Besides, centrifugal microfluidic devices exploit centrifugal forces to move liquid and particles. The simultaneous combination of dielectrophoretic and centrifugal forces exerted on microparticles still needs to be scrutinized more to predict their trajectories in such devices. RESULTS An integrated system utilizing two categories in microfluidics is proposed: dielectrophoretic manipulation of microparticles and centrifugal-driven microfluidics, followed by a numerical analysis. In this regard, we assumed a rectangular microchannel with internal unilateral planar electrodes equipped with three equal-sized outlets placed radially on a centrifugal platform where microparticles flow toward the disc's outer edge. The effect of different coordinate-based parameters, including radial and lateral distances (X and Y offsets)/tilting angles toward the radius direction (α), on the particles' movement was investigated. Additionally, the effect of operational parameters, including applied voltage, the microchannel width, the number of enabled electrodes, the diameter of particles, and the configuration of electrodes, were analyzed, and the distributions of particles toward the outlets were monitored. It was found that enhanced particle focusing becomes possible at lower rotation speeds and higher electric field values. Furthermore, the proposed centrifugal-DEP system's efficiency for classifying red blood cells/platelets and Live/Dead yeast cells systems was evaluated. SIGNIFICANCE Our integrated system is introduced as a novel method for focusing and classifying various microparticles with no need for sheath flows, having the ability to conduct particles at desired routes and focusing width. Furthermore, the system effectively separates various bioparticles and offers ease of operation and high-efficiency throughput over conventional dielectrophoretic devices.
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Affiliation(s)
- Vahid Kordzadeh-Kermani
- Research Lab for Advanced Separation Processes, Department of Chemical Engineering, Iran University of Science and Technology, Narmak, Tehran, 16846-13114, Iran
| | - Seyed Nezameddin Ashrafizadeh
- Research Lab for Advanced Separation Processes, Department of Chemical Engineering, Iran University of Science and Technology, Narmak, Tehran, 16846-13114, Iran.
| | - Masoud Madadelahi
- School of Engineering and Sciences, Tecnologico de Monterrey, Monterrey, 64849, NL, Mexico.
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Smith de Diego A, Griffiths OV, Johnson MP, de Montis M, Hughes MP. Optimization of upstream particle concentration from flow using AC electro-osmosis and dielectrophoresis. BIOMICROFLUIDICS 2024; 18:024105. [PMID: 38585002 PMCID: PMC10997383 DOI: 10.1063/5.0189137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 03/18/2024] [Indexed: 04/09/2024]
Abstract
There are many applications where upstream sample processing is required to concentrate dispersed particles in flow; this may be to increase the concentration (e.g., to enhance biosensor accuracy) or to decrease it (e.g., by removing contaminants from flow). The AC electrokinetic phenomenon, dielectrophoresis (DEP), has been used widely for particle trapping for flow, but the magnitude of the force drops reduces rapidly with distance from electrode edges, so that nm-scale particles such as viruses and bacteria are only trapped when near the electrode surface. This limits the usable flow rate in the device and can render the final device unusable for practical applications. Conversely, another electrokinetic phenomenon, AC electro-osmosis (ACEO), can be used to move particles to electrode surfaces but is unable to trap them from flow, limiting their ability for sample cleanup or trap-and-purge concentration. In this paper, we describe the optimization of ACEO electrodes aligned parallel to pressure-driven flow as a precursor/preconditioner to capture particles from a flow stream and concentrate them adjacent to the channel wall to enhance DEP capture. This is shown to be effective at flow rates of up to 0.84 ml min-1. Furthermore, the analysis of the 3D flow structure in the ACEO device by both simulation and confocal microscopy suggests that while the system offers significant benefits, the flow structure in the volume near the channel lid is such that while substantial trapping can occur, particles in this part of the chamber cannot be trapped, independent of the chamber height.
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Affiliation(s)
| | - Oreoluwa V. Griffiths
- Centre for Biomedical Engineering, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom
| | - Matthew P. Johnson
- Centre for Biomedical Engineering, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom
| | - Marco de Montis
- Kromek Ltd, Thomas Wright Way, Sedgefield, County Durham, TS21 3FD, United Kingdom
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One-step immunoassay based on filtration for detection of food poisoning-related bacteria. Talanta 2023; 255:124203. [PMID: 36565526 DOI: 10.1016/j.talanta.2022.124203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 12/12/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
A one-step immunoassay based on filtration was presented, which used microbeads for target analyte detection and filters with appropriate pore sizes to distinguish the complexity of target analyte and microbeads. For effective bacterial detection, the microbead size and the filter's pore size must be optimized. The optimal concentrations of the enzyme (urease) and antibody were determined at the maximum absorbance change, that is, the maximum pH change. The pH change was measured using a field-effect transistor (FET). The correlation between pH change and threshold voltage was estimated to be 21.7 mV/pH, and the correlation between pH change and the source-drain current was estimated to be -379 nA/pH. For the one-step immunoassay, antibodies against target bacteria were isolated from horse serum by filtration, and these antibodies were estimated to have a sufficiently high specificity to overcome cross-reactivity among five types of food poisoning-related bacteria: Escherichia coli O157, Salmonella typhimurium, Listeria monocytogenes, Bacillus cereus, and Staphylococcus aureus. Finally, the FET-based one-step immunoassay was demonstrated for five types of food poisoning-related bacteria in human serum.
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Saikia A, Newar R, Das S, Singh A, Deuri DJ, Baruah A. Scopes and Challenges of Microfluidic Technology for Nanoparticle Synthesis, Photocatalysis and Sensor Applications: A Comprehensive Review. Chem Eng Res Des 2023. [DOI: 10.1016/j.cherd.2023.03.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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Effect of magnetic field on electroconvection in a thin layer of magnetic nanofluid. Chem Phys Lett 2023. [DOI: 10.1016/j.cplett.2023.140413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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Zhou CT, Yao ZZ, Chen DL, Luo K, Wu J, Yi HL. Numerical prediction of transient electrohydrodynamic instabilities under an alternating current electric field and unipolar injection. Heliyon 2023; 9:e12812. [PMID: 36699279 PMCID: PMC9868483 DOI: 10.1016/j.heliyon.2023.e12812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 12/26/2022] [Accepted: 01/03/2023] [Indexed: 01/13/2023] Open
Abstract
In this paper, a direct numerical simulation (DNS) of dielectric fluid flow subjected to unipolar injection under an alternating current (AC) electric field is carried out. The effect of frequency f of pulsed direct current (PDC) and AC on the transient evolution of electroconvection and their subcritical bifurcations are investigated in details. Electroconvection under PDC or AC tends to exhibit oscillating flow due to the periodic boundary condition of charge density and potential compared to the direct current (DC) case. The results demonstrate that under the PDC field, the linear criterion T c decreases with increasing frequency, while the nonlinear stability criterion T f is hardly affected. Under the AC field, a critical frequency f c = 0.0316 is found, which separates electroconvection into two typical flow regimes-periodic flow regime (f < f c ) and inhibited flow regime (f ≥ f c )-depending on whether free charges can reach the collector electrode before electric field inversion. AC-electrohydrodynamics (EHD) systems promote various flow patterns with relatively lower voltage regimes than DC-EHD systems. These mechanisms of electroconvection under the PDC/AC field offer unique possibilities for fluid flow control in biological EHD-driven flow and portable EHD applications.
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Affiliation(s)
- Chu-Tong Zhou
- School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China,Key Laboratory of Aerospace Thermophysics, Harbin Institute of Technology, Harbin, 150001, People's Republic of China
| | - Zhen-Ze Yao
- School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China,Key Laboratory of Aerospace Thermophysics, Harbin Institute of Technology, Harbin, 150001, People's Republic of China
| | - Di-Lin Chen
- School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China,Key Laboratory of Aerospace Thermophysics, Harbin Institute of Technology, Harbin, 150001, People's Republic of China
| | - Kang Luo
- School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China,Key Laboratory of Aerospace Thermophysics, Harbin Institute of Technology, Harbin, 150001, People's Republic of China,Corresponding author. School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China.
| | - Jian Wu
- School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China,Key Laboratory of Aerospace Thermophysics, Harbin Institute of Technology, Harbin, 150001, People's Republic of China
| | - Hong-Liang Yi
- School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China,Key Laboratory of Aerospace Thermophysics, Harbin Institute of Technology, Harbin, 150001, People's Republic of China,Corresponding author. School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China.
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Iakovlev AP, Erofeev AS, Gorelkin PV. Novel Pumping Methods for Microfluidic Devices: A Comprehensive Review. BIOSENSORS 2022; 12:bios12110956. [PMID: 36354465 PMCID: PMC9688261 DOI: 10.3390/bios12110956] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 10/26/2022] [Accepted: 10/28/2022] [Indexed: 06/02/2023]
Abstract
This review is an account of methods that use various strategies to control microfluidic flow control with high accuracy. The reviewed systems are divided into two large groups based on the way they create flow: passive systems (non-mechanical systems) and active (mechanical) systems. Each group is presented by a number of device fabrications. We try to explain the main principles of operation, and we list advantages and disadvantages of the presented systems. Mechanical systems are considered in more detail, as they are currently an area of increased interest due to their unique precision flow control and "multitasking". These systems are often applied as mini-laboratories, working autonomously without any additional operations, provided by humans, which is very important under complicated conditions. We also reviewed the integration of autonomous microfluidic systems with a smartphone or single-board computer when all data are retrieved and processed without using a personal computer. In addition, we discuss future trends and possible solutions for further development of this area of technology.
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Advances in nanomaterial-based microfluidic platforms for on-site detection of foodborne bacteria. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2021.116509] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Halima HB, Errachid A, Jaffrezic‐Renault N. Electrochemical Affinity Sensors Using Field Effect Transducer Devices for Chemical Analysis. ELECTROANAL 2021. [DOI: 10.1002/elan.202100451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hamdi Ben Halima
- University of Lyon Institute of Analytical Sciences 69100 Villeurbanne France
| | - Abdelhamid Errachid
- University of Lyon Institute of Analytical Sciences 69100 Villeurbanne France
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Zhou X, Li Z, Zhang Z, Zhu L, Liu Q. A rapid and label-free platform for virus enrichment based on electrostatic microfluidics. Talanta 2021; 242:122989. [PMID: 35189409 DOI: 10.1016/j.talanta.2021.122989] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/15/2021] [Accepted: 10/20/2021] [Indexed: 12/26/2022]
Abstract
Virus surveillance and discovery are crucial for virus prediction and outbreak preparedness. Virus samples are frequently bulky and complicated so that effective virus detection remain challenging. Herein, we develop an 3D electrostatic microfluidic platform to rapidly and label-free enrich viruses from bulky samples at low concentrations. The platform consists of double microchannels for streamlining large volume processing and electrodes for enriching viruses by electrostatic interaction. The trajectories of simulation show that particle is successfully enriched under different forces of electrostatic field and different sample flow rates. We demonstrate that the electrostatic microfluidic platform can increase the limit of detection in 100-fold higher based on real-time PCR quantified analysis. Our design thus provides a simple, rapid, label-free and high-throughput viruses concentration platform and would thus have significant utility for various viral detection.
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Affiliation(s)
- Xiaoxiang Zhou
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, No. 2, Sipailou, Nanjing, 210096, PR China
| | - Zhanping Li
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, No. 2, Sipailou, Nanjing, 210096, PR China
| | - Zhen Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, No. 2, Sipailou, Nanjing, 210096, PR China
| | - Libo Zhu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, No. 2, Sipailou, Nanjing, 210096, PR China
| | - Quanjun Liu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, No. 2, Sipailou, Nanjing, 210096, PR China.
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