1
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Strohmaier-Nguyen D, Horn C, Baeumner AJ. NT-proBNP detection with a one-step magnetic lateral flow channel assay. Anal Bioanal Chem 2024:10.1007/s00216-024-05223-x. [PMID: 38459191 DOI: 10.1007/s00216-024-05223-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 02/07/2024] [Accepted: 02/13/2024] [Indexed: 03/10/2024]
Abstract
Point-of-care sensors targeting blood marker analysis must be designed to function with very small volumes since acquiring a blood sample through a simple, mostly pain-free finger prick dramatically limits the sample size and comforts the patient. Therefore, we explored the potential of converting a conventional lateral flow assay (LFA) for a significant biomarker into a self-contained and compact polymer channel-based LFA to minimize the sample volume while maintaining the analytical merits. Our primary objective was to eliminate the use of sample-absorbing fleece and membrane materials commonly present in LFAs. Simultaneously, we concentrated on developing a ready-to-deploy one-step LFA format, characterized by dried reagents, facilitating automation and precise sample transport through a pump control system. We targeted the detection of the heart failure biomarker NT-proBNP in only 15 µL human whole blood and therefore implemented strategies that ensure highly sensitive detection. The biosensor combines streptavidin-functionalized magnetic beads (MNPs) as a 3D detection zone and fluorescence nanoparticles as signal labels in a sandwich-based immunoassay. Compared to the currently commercialized LFA, our biosensor demonstrates comparable analytical performance with only a tenth of the sample volume. With a detection limit of 43.1 pg∙mL-1 and a mean error of 18% (n ≥ 3), the biosensor offers high sensitivity and accuracy. The integration of all-dried long-term stable reagents further enhances the convenience and stability of the biosensor. This lateral flow channel platform represents a promising advancement in point-of-care diagnostics for heart failure biomarkers, offering a user-friendly and sensitive platform for rapid and reliable testing with low finger-prick blood sample volumes.
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Affiliation(s)
- Dan Strohmaier-Nguyen
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, 93053, Regensburg, Germany
| | - Carina Horn
- Roche Diagnostics GmbH, 68305, Mannheim, Germany
| | - Antje J Baeumner
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, 93053, Regensburg, Germany.
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2
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Yang IH, Kim N. Comparisons of the acoustic radiation force of ultrasonic standing waves in half-wavelength and quarter-wavelength micro-resonators of cylindrical geometry. ULTRASONICS 2024; 138:107267. [PMID: 38367402 DOI: 10.1016/j.ultras.2024.107267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/19/2024]
Abstract
Ultrasonic standing waves with specific wavelengths generated in the multi-layered micro-resonators were numerically and experimentally analyzed. Using a three-dimensional scanning fluorescence microscope, the acoustophoretic motion of fluorescent microparticles within the micro-resonators was carefully and accurately measured. The manufactured micro-resonators were validated by comparing the location of the acoustic pressure nodal plane and the average energy density curves derived from numerical and experimental results. Results confirmed that the acoustic radiation force of the induced ultrasonic standing waves drives the microparticles vertically within the micro-resonators and their average energy density increases as the sinusoidal voltage applied to the piezoelectric transducer increases. Semi-empirical correlations were developed for the average energy density, based on experimental results for a wide range of the applied voltage amplitudes. The correlations were in good agreement, within less than 20 % of the experimental values measured for both the half-wavelength and quarter-wavelength micro-resonators.
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Affiliation(s)
- In-Hwan Yang
- Department of Chemical Engineering, Kyonggi University, Suwon-si 16227, Republic of Korea.
| | - Nahae Kim
- Department of Chemical Engineering, Kyonggi University, Suwon-si 16227, Republic of Korea
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3
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Saulnier J, Jose C, Lagarde F. Electrochemical techniques for label-free and early detection of growing microbial cells and biofilms. Bioelectrochemistry 2024; 155:108587. [PMID: 37839250 DOI: 10.1016/j.bioelechem.2023.108587] [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: 07/07/2023] [Revised: 10/06/2023] [Accepted: 10/10/2023] [Indexed: 10/17/2023]
Abstract
Over the past decades, the misuse or abuse of antimicrobial agents to prevent and/or control infections has led to increased resistance of microbes to treatments, and antimicrobial resistance is now a subject of major global concern. In some cases, microbes possess the capacity to attach to biotic or abiotic surfaces, and to produce a protective polymeric matrix, forming biofilms of higher resistance and virulence compared to planktonic forms. To avoid further excessive and inappropriate use of antimicrobials, and to propose new effective treatments, it is very important to detect planktonic microbes and microbial biofilms in their early growth stage and at the point of need. In this review, we provide an overview of currently available electrochemical techniques, in particular impedimetric and voltamperometric methods, highlighting recent advances in the field and illustrating with examples in antibiotic susceptibility testing and microbial biofilm monitoring.
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Affiliation(s)
- Joelle Saulnier
- Universite Claude Bernard Lyon 1, Institute of Analytical Sciences, CNRS, 5 rue de la Doua, 69100 Villeurbanne, France
| | - Catherine Jose
- Universite Claude Bernard Lyon 1, Institute of Analytical Sciences, CNRS, 5 rue de la Doua, 69100 Villeurbanne, France
| | - Florence Lagarde
- Universite Claude Bernard Lyon 1, Institute of Analytical Sciences, CNRS, 5 rue de la Doua, 69100 Villeurbanne, France.
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4
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Del Campo Fonseca A, Ahmed D. Ultrasound robotics for precision therapy. Adv Drug Deliv Rev 2024; 205:115164. [PMID: 38145721 DOI: 10.1016/j.addr.2023.115164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 12/07/2023] [Accepted: 12/22/2023] [Indexed: 12/27/2023]
Abstract
In recent years, the application of microrobots in precision therapy has gained significant attention. The small size and maneuverability of these micromachines enable them to potentially access regions that are difficult to reach using traditional methods; thus, reducing off-target toxicities and maximizing treatment effectiveness. Specifically, acoustic actuation has emerged as a promising method to exert control. By harnessing the power of acoustic energy, these small machines potentially navigate the body, assemble at the desired sites, and deliver therapies with enhanced precision and effectiveness. Amidst the enthusiasm surrounding these miniature agents, their translation to clinical environments has proven difficult. The primary objectives of this review are threefold: firstly, to offer an overview of the fundamental acoustic principles employed in the field of microrobots; secondly, to assess their current applications in medical therapies, encompassing tissue targeting, drug delivery or even cell infiltration; and lastly, to delve into the continuous efforts aimed at integrating acoustic microrobots into in vivo applications.
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Affiliation(s)
- Alexia Del Campo Fonseca
- Department of Mechanical and Process Engineering, Acoustic Robotics Systems Lab, ETH Zurich, Säumerstrasse 4, 8803 Rüschlikon, Switzerland.
| | - Daniel Ahmed
- Department of Mechanical and Process Engineering, Acoustic Robotics Systems Lab, ETH Zurich, Säumerstrasse 4, 8803 Rüschlikon, Switzerland.
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5
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Gan CS, Fan LL, Zhao L. Gravity-based focusing and size-dependent separation of metal microparticles in lubricating oil. Electrophoresis 2023; 44:1889-1898. [PMID: 37731003 DOI: 10.1002/elps.202300086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 07/07/2023] [Accepted: 08/11/2023] [Indexed: 09/22/2023]
Abstract
The separation of wear microparticles in lubricating oil is crucial for improving the accuracy and throughput of the subsequent detection. However, there are few kinds of research on the separation of high-density metallic microparticles in high-viscosity lubricating oil. In this paper, a passive method for separating the metallic microparticles in oil is proposed. Gravity sedimentation was adopted to realize three-dimensional (3D) focusing of the particle by using an inclined capillary. The gravity-based 3D focusing made the sheath flow no longer responsible for the particle focusing and effectively reduced the sheath flow. Then, the separation of different-sized metallic microparticles was achieved in a horizontal channel with the aid of a sheath flow based on the different driving forces. The present method solved the problem of nonsynchronous separation of the particle in comparison to the traditional methods. This device has a simple structure with high separation efficiency, and it is easy to integrate with the detection channel. The influence of numerous parameters on the gravity-based focusing and separation was systematically studied by the numerical simulation and the experiment. The design criteria were established, which is useful in designing and employing the device, expanding its application to other non-neutral buoyancy particle separation cases, and opening up more prospects for microfluidic technology.
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Affiliation(s)
- Chong-Shan Gan
- School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China
| | - Liang-Liang Fan
- School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China
- School of Instrument Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China
| | - Liang Zhao
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China
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6
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Kimijima J, Inagawa A, Uehara N. Incorporation of a Morphologically Controlled Ice Grain Boundary into a Microfluidic Device for Size-Selective Separation of Micro/Nanospheres. Anal Chem 2023; 95:14963-14971. [PMID: 37766381 DOI: 10.1021/acs.analchem.3c02330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
A frozen aqueous solution was integrated into a microfluidic device as a size-tunable separation field for the size-selective separation of micro/nanospheres. The width of the ice grain boundaries formed in frozen aqueous solutions could be altered by controlling the operating temperature. A freezing chamber was placed adjacent to the microfluidic channel. A sample-dispersing aqueous sucrose solution was injected into the chamber and frozen, allowing the freeze-concentrated solution (FCS) to run vertically to the microfluidic channel, where the eluting solution flows. The operating temperature can be used to control the physical interaction between the ice wall and micro/nanospheres, enabling size-selective migration. The eluted micro/nanospheres in the microchannel were passed through the eluting solution collected from the outlet. We achieved size-selective separation and collection of microspheres and nanospheres. We separated the exosomes and yeast cells to demonstrate their applicability in bioseparation. The present method is suitable not only for size-selective separation but also for evaluating the biological expression of extracellular vesicles under cryogenic conditions.
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Affiliation(s)
- Junya Kimijima
- Faculty of Engineering, Utsunomiya University, 7-1-2, Yoto, Utsunomiya, Tochigi 321-8585, Japan
| | - Arinori Inagawa
- Faculty of Engineering, Utsunomiya University, 7-1-2, Yoto, Utsunomiya, Tochigi 321-8585, Japan
| | - Nobuo Uehara
- Faculty of Engineering, Utsunomiya University, 7-1-2, Yoto, Utsunomiya, Tochigi 321-8585, Japan
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7
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An L, Ji F, Zhao E, Liu Y, Liu Y. Measuring cell deformation by microfluidics. Front Bioeng Biotechnol 2023; 11:1214544. [PMID: 37434754 PMCID: PMC10331473 DOI: 10.3389/fbioe.2023.1214544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 06/14/2023] [Indexed: 07/13/2023] Open
Abstract
Microfluidics is an increasingly popular method for studying cell deformation, with various applications in fields such as cell biology, biophysics, and medical research. Characterizing cell deformation offers insights into fundamental cell processes, such as migration, division, and signaling. This review summarizes recent advances in microfluidic techniques for measuring cellular deformation, including the different types of microfluidic devices and methods used to induce cell deformation. Recent applications of microfluidics-based approaches for studying cell deformation are highlighted. Compared to traditional methods, microfluidic chips can control the direction and velocity of cell flow by establishing microfluidic channels and microcolumn arrays, enabling the measurement of cell shape changes. Overall, microfluidics-based approaches provide a powerful platform for studying cell deformation. It is expected that future developments will lead to more intelligent and diverse microfluidic chips, further promoting the application of microfluidics-based methods in biomedical research, providing more effective tools for disease diagnosis, drug screening, and treatment.
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Affiliation(s)
- Ling An
- School of Engineering, Dali University, Dali, Yunnan, China
| | - Fenglong Ji
- School of Textile Materials and Engineering, Wuyi University, Jiangmen, Guangdong, China
| | - Enming Zhao
- School of Engineering, Dali University, Dali, Yunnan, China
| | - Yi Liu
- School of Engineering, Dali University, Dali, Yunnan, China
| | - Yaling Liu
- Department of Bioengineering, Lehigh University, Bethlehem, PA, United States
- Department of Mechanical Engineering and Mechanics, Lehigh University, Bethlehem, PA, United States
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8
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Derakhshan R, Bozorgzadeh A, Ramiar A. Numerical investigation of ternary particle separation in a microchannel with a wall-mounted obstacle using dielectrophoresis. J Chromatogr A 2023; 1702:464079. [PMID: 37263054 DOI: 10.1016/j.chroma.2023.464079] [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: 03/20/2023] [Revised: 05/09/2023] [Accepted: 05/16/2023] [Indexed: 06/03/2023]
Abstract
In recent years, microfluidic-based particle/cell manipulation techniques have catalyzed significant advances in several fields of science. As an efficient, precise, and label-free particle/cell manipulation technique, dielectrophoresis (DEP) has recently attracted widespread attention. This paper presents the design and investigation of a straight sheathless 3D microchannel with a wall-mounted trapezoidal obstacle for continuous-flow separation of three different populations of polystyrene (PS) particles (5, 10 and 20 µm) using DEP. An OpenFOAM code is developed to simulate and investigate the movement of particles in the microchannel. Then, the code is validated by performing various experimental tests using a microdevice previously fabricated in our lab. By comparing the numerical simulation results with the experimental tests, it can be claimed that the newly developed solver is highly accurate, and its results agree well with experimental tests. Next, the effect of various operational and geometrical parameters such as obstacle height, applied voltage, electrode pairs angle, and flow rate on the efficient focusing and separation of particles are numerically investigated. The results showed that efficient particle separation could only be achieved for obstacle heights of more than 350 µm. Furthermore, the appropriate voltage range for efficient particle separation is increased by decreasing the electrode angle as well as increasing the flow rate. Moreover, the results showed that by employing the appropriate channel design and operational conditions, at a maximum applied voltage of 10V, a sample flow rate of 2.5μL/min could be processed. The proposed design can be beneficial for integrating with lab-on-a-chip and clinical diagnosis applications due to advantages, such as simple design, no need for sheath flow, the simultaneous ternary separation of particles, and providing precise particle separation.
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Affiliation(s)
- Reza Derakhshan
- Mechanical Engineering Department, Microfluidics and MEMS lab, Babol Noshirvani University of Technology, Babol, Mazandaran, Iran.
| | - Ali Bozorgzadeh
- Mechanical Engineering Department, Microfluidics and MEMS lab, Babol Noshirvani University of Technology, Babol, Mazandaran, Iran.
| | - Abas Ramiar
- Mechanical Engineering Department, Microfluidics and MEMS lab, Babol Noshirvani University of Technology, Babol, Mazandaran, Iran.
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9
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Hettiarachchi S, Cha H, Ouyang L, Mudugamuwa A, An H, Kijanka G, Kashaninejad N, Nguyen NT, Zhang J. Recent microfluidic advances in submicron to nanoparticle manipulation and separation. LAB ON A CHIP 2023; 23:982-1010. [PMID: 36367456 DOI: 10.1039/d2lc00793b] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Manipulation and separation of submicron and nanoparticles are indispensable in many chemical, biological, medical, and environmental applications. Conventional technologies such as ultracentrifugation, ultrafiltration, size exclusion chromatography, precipitation and immunoaffinity capture are limited by high cost, low resolution, low purity or the risk of damage to biological particles. Microfluidics can accurately control fluid flow in channels with dimensions of tens of micrometres. Rapid microfluidics advancement has enabled precise sorting and isolating of nanoparticles with better resolution and efficiency than conventional technologies. This paper comprehensively studies the latest progress in microfluidic technology for submicron and nanoparticle manipulation. We first summarise the principles of the traditional techniques for manipulating nanoparticles. Following the classification of microfluidic techniques as active, passive, and hybrid approaches, we elaborate on the physics, device design, working mechanism and applications of each technique. We also compare the merits and demerits of different microfluidic techniques and benchmark them with conventional technologies. Concurrently, we summarise seven standard post-separation detection techniques for nanoparticles. Finally, we discuss current challenges and future perspectives on microfluidic technology for nanoparticle manipulation and separation.
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Affiliation(s)
- Samith Hettiarachchi
- Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, Queensland 4111, Australia.
| | - Haotian Cha
- Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, Queensland 4111, Australia.
| | - Lingxi Ouyang
- Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, Queensland 4111, Australia.
| | | | - Hongjie An
- Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, Queensland 4111, Australia.
| | - Gregor Kijanka
- Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, Queensland 4111, Australia.
| | - Navid Kashaninejad
- Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, Queensland 4111, Australia.
| | - Nam-Trung Nguyen
- Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, Queensland 4111, Australia.
| | - Jun Zhang
- Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, Queensland 4111, Australia.
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10
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Jonai T, Ohori Y, Fujii T, Nakayama A, Moriwaki H, Akiyama Y. A collection device for various-sized microparticles that uses four serial acoustic separations: working toward microplastic emission prevention. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
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11
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Han J, Hu H, Lei Y, Huang Q, Fu C, Gai C, Ning J. Optimization Analysis of Particle Separation Parameters for a Standing Surface Acoustic Wave Acoustofluidic Chip. ACS OMEGA 2023; 8:311-323. [PMID: 36643460 PMCID: PMC9835635 DOI: 10.1021/acsomega.2c04273] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
Microparticle separation technology is an important technology in many biomedical and chemical engineering applications from sample detection to disease diagnosis. Although a variety of microparticle separation techniques have been developed thus far, surface acoustic wave (SAW)-based microfluidic separation technology shows great potential because of its high throughput, high precision, and integration with polydimethylsiloxane (PDMS) microchannels. In this work, we demonstrate an acoustofluidic separation chip that includes a piezoelectric device that generates tilted-angle standing SAWs and a permanently bonded PDMS microchannel. We established a mathematical model of particle motion in the microchannel, simulated the particle trajectory through finite element simulation and numerical simulation, and then verified the validity of the model through acoustophoresis experiments. To improve the performance of the separation chip, the influences of particle size, flow rate, and input power on the particle deflection distance were studied. These parameters are closely related to the separation purity and separation efficiency. By optimizing the control parameters, the separation of micron and submicron particles under different throughput conditions was achieved. Moreover, the separation samples were quantitatively analyzed by digital light scattering technology and flow cytometry, and the results showed that the maximum purity of the separated particles was ∼95%, while the maximum efficiency was ∼97%.
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Affiliation(s)
- Junlong Han
- School
of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen518055, China
| | - Hong Hu
- School
of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen518055, China
| | - Yulin Lei
- School
of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen518055, China
| | | | - Chen Fu
- College
of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen518055, China
| | - Chenhui Gai
- School
of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen518055, China
| | - Jia Ning
- School
of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen518055, China
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12
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Kim H, Zhbanov A, Yang S. Microfluidic Systems for Blood and Blood Cell Characterization. BIOSENSORS 2022; 13:13. [PMID: 36671848 PMCID: PMC9856090 DOI: 10.3390/bios13010013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/16/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
A laboratory blood test is vital for assessing a patient's health and disease status. Advances in microfluidic technology have opened the door for on-chip blood analysis. Currently, microfluidic devices can reproduce myriad routine laboratory blood tests. Considerable progress has been made in microfluidic cytometry, blood cell separation, and characterization. Along with the usual clinical parameters, microfluidics makes it possible to determine the physical properties of blood and blood cells. We review recent advances in microfluidic systems for measuring the physical properties and biophysical characteristics of blood and blood cells. Added emphasis is placed on multifunctional platforms that combine several microfluidic technologies for effective cell characterization. The combination of hydrodynamic, optical, electromagnetic, and/or acoustic methods in a microfluidic device facilitates the precise determination of various physical properties of blood and blood cells. We analyzed the physical quantities that are measured by microfluidic devices and the parameters that are determined through these measurements. We discuss unexplored problems and present our perspectives on the long-term challenges and trends associated with the application of microfluidics in clinical laboratories. We expect the characterization of the physical properties of blood and blood cells in a microfluidic environment to be considered a standard blood test in the future.
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Affiliation(s)
- Hojin Kim
- Department of Mechatronics Engineering, Dongseo University, Busan 47011, Republic of Korea
| | - Alexander Zhbanov
- School of Mechanical Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Sung Yang
- School of Mechanical Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
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13
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Emerging application of hydrocyclone in biotechnology and food processing. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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14
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Tian Z, Gan C, Fan L, Wang J, Zhao L. Elastic‐inertial separation of microparticle in a gradually contracted microchannel. Electrophoresis 2022; 43:2217-2226. [DOI: 10.1002/elps.202200083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 07/19/2022] [Accepted: 08/13/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Zhuang‐Zhuang Tian
- School of Mechanical Engineering Xi'an Jiaotong University Xi'an Shaanxi P. R. China
| | - Chong‐Shan Gan
- School of Mechanical Engineering Xi'an Jiaotong University Xi'an Shaanxi P. R. China
| | - Liang‐Liang Fan
- School of Mechanical Engineering Xi'an Jiaotong University Xi'an Shaanxi P. R. China
- School of Food Equipment Engineering and Science (FEES) Xi'an Jiaotong University Xi'an Shaanxi P. R. China
| | - Ji‐Chang Wang
- Department of Vascular Surgery The First Affiliated Hospital of Xi'an Jiaotong University Xi'an Shaanxi P. R. China
| | - Liang Zhao
- State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an Shaanxi P. R. China
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15
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Maurya A, Murallidharan JS, Sharma A, Agarwal A. Microfluidics geometries involved in effective blood plasma separation. MICROFLUIDICS AND NANOFLUIDICS 2022; 26:73. [PMID: 36090664 PMCID: PMC9440999 DOI: 10.1007/s10404-022-02578-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 08/09/2022] [Indexed: 06/15/2023]
Abstract
The last two decades witnessed a significant advancement in the field of diluted and whole blood plasma separation. This is one of the common procedures used to diagnose, cure and treat numerous acute and chronic diseases. For this separation purpose, various types of geometries of microfluidic devices, such as T-channel, Y-channel, trifurcation, constriction-expansion, curved/bend/spiral channels, a combination of any of the two geometries, etc., are being exploited, and this is detailed in this review article. The evaluation of the performance of such devices is based on the several parameters such as separation efficiency, flow rate, hematocrits, channel dimensions, etc. Thus, the current extensive review article endeavours to understand how particular geometry influences the separation efficiency for a given hematocrit. Additionally, a comparative analysis of various geometries is presented to demonstrate the less explored geometric configuration for the diluted and whole blood plasma separation. Also, a meta-analysis has been performed to highlight which geometry serves best to give a consistent separation efficiency. This article also presents tabulated data for various geometries with necessary details required from a designer's perspective such as channel dimensions, targeted component, studied range of hematocrit and flow rate, separation efficiency, etc. The maximum separation efficiency that can be achieved for a given hematocrits and geometry has also been plotted. The current review highlights the critical findings relevant to this field, state of the art understanding and the future challenges.
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Affiliation(s)
- Anamika Maurya
- Department of Mechanical Engineering, Indian Institute of Technology Mumbai, Mumbai, 400076 India
| | | | - Atul Sharma
- Department of Mechanical Engineering, Indian Institute of Technology Mumbai, Mumbai, 400076 India
| | - Amit Agarwal
- Department of Mechanical Engineering, Indian Institute of Technology Mumbai, Mumbai, 400076 India
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16
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Farasat M, Aalaei E, Kheirati Ronizi S, Bakhshi A, Mirhosseini S, Zhang J, Nguyen NT, Kashaninejad N. Signal-Based Methods in Dielectrophoresis for Cell and Particle Separation. BIOSENSORS 2022; 12:510. [PMID: 35884313 PMCID: PMC9313092 DOI: 10.3390/bios12070510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 06/29/2022] [Accepted: 07/04/2022] [Indexed: 06/15/2023]
Abstract
Separation and detection of cells and particles in a suspension are essential for various applications, including biomedical investigations and clinical diagnostics. Microfluidics realizes the miniaturization of analytical devices by controlling the motion of a small volume of fluids in microchannels and microchambers. Accordingly, microfluidic devices have been widely used in particle/cell manipulation processes. Different microfluidic methods for particle separation include dielectrophoretic, magnetic, optical, acoustic, hydrodynamic, and chemical techniques. Dielectrophoresis (DEP) is a method for manipulating polarizable particles' trajectories in non-uniform electric fields using unique dielectric characteristics. It provides several advantages for dealing with neutral bioparticles owing to its sensitivity, selectivity, and noninvasive nature. This review provides a detailed study on the signal-based DEP methods that use the applied signal parameters, including frequency, amplitude, phase, and shape for cell/particle separation and manipulation. Rather than employing complex channels or time-consuming fabrication procedures, these methods realize sorting and detecting the cells/particles by modifying the signal parameters while using a relatively simple device. In addition, these methods can significantly impact clinical diagnostics by making low-cost and rapid separation possible. We conclude the review by discussing the technical and biological challenges of DEP techniques and providing future perspectives in this field.
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Affiliation(s)
- Malihe Farasat
- School of Electrical and Computer Engineering, College of Engineering, Tehran University, Tehran 14399-57131, Iran; (M.F.); (A.B.); (S.M.)
| | - Ehsan Aalaei
- School of Mechanical Engineering, Shiraz University, Shiraz 71936-16548, Iran; (E.A.); (S.K.R.)
| | - Saeed Kheirati Ronizi
- School of Mechanical Engineering, Shiraz University, Shiraz 71936-16548, Iran; (E.A.); (S.K.R.)
| | - Atin Bakhshi
- School of Electrical and Computer Engineering, College of Engineering, Tehran University, Tehran 14399-57131, Iran; (M.F.); (A.B.); (S.M.)
| | - Shaghayegh Mirhosseini
- School of Electrical and Computer Engineering, College of Engineering, Tehran University, Tehran 14399-57131, Iran; (M.F.); (A.B.); (S.M.)
| | - Jun Zhang
- Queensland Micro-Nanotechnology Centre, Griffith University, Nathan, QLD 4111, Australia; (J.Z.); (N.-T.N.)
| | - Nam-Trung Nguyen
- Queensland Micro-Nanotechnology Centre, Griffith University, Nathan, QLD 4111, Australia; (J.Z.); (N.-T.N.)
| | - Navid Kashaninejad
- Queensland Micro-Nanotechnology Centre, Griffith University, Nathan, QLD 4111, Australia; (J.Z.); (N.-T.N.)
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17
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Zhang Y, Zhao Y, Cole T, Zheng J, Bayinqiaoge, Guo J, Tang SY. Microfluidic flow cytometry for blood-based biomarker analysis. Analyst 2022; 147:2895-2917. [PMID: 35611964 DOI: 10.1039/d2an00283c] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Flow cytometry has proven its capability for rapid and quantitative analysis of individual cells and the separation of targeted biological samples from others. The emerging microfluidics technology makes it possible to develop portable microfluidic diagnostic devices for point-of-care testing (POCT) applications. Microfluidic flow cytometry (MFCM), where flow cytometry and microfluidics are combined to achieve similar or even superior functionalities on microfluidic chips, provides a powerful single-cell characterisation and sorting tool for various biological samples. In recent years, researchers have made great progress in the development of the MFCM including focusing, detecting, and sorting subsystems, and its unique capabilities have been demonstrated in various biological applications. Moreover, liquid biopsy using blood can provide various physiological and pathological information. Thus, biomarkers from blood are regarded as meaningful circulating transporters of signal molecules or particles and have great potential to be used as non (or minimally)-invasive diagnostic tools. In this review, we summarise the recent progress of the key subsystems for MFCM and its achievements in blood-based biomarker analysis. Finally, foresight is offered to highlight the research challenges faced by MFCM in expanding into blood-based POCT applications, potentially yielding commercialisation opportunities.
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Affiliation(s)
- Yuxin Zhang
- Department of Electronic, Electrical and Systems Engineering, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
| | - Ying Zhao
- National Chengdu Centre of Safety Evaluation of Drugs, West China Hospital of Sichuan University, Chengdu, China
| | - Tim Cole
- Department of Electronic, Electrical and Systems Engineering, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
| | - Jiahao Zheng
- Department of Electronic, Electrical and Systems Engineering, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
| | - Bayinqiaoge
- Department of Electronic, Electrical and Systems Engineering, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
| | - Jinhong Guo
- The M.O.E. Key Laboratory of Laboratory Medical Diagnostics, The College of Laboratory Medicine, Chongqing Medical University, #1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China.
| | - Shi-Yang Tang
- Department of Electronic, Electrical and Systems Engineering, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
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18
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Afsaneh H, Mohammadi R. Microfluidic platforms for the manipulation of cells and particles. TALANTA OPEN 2022. [DOI: 10.1016/j.talo.2022.100092] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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19
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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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20
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Eills J, Hale W, Utz M. Synergies between Hyperpolarized NMR and Microfluidics: A Review. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2022; 128:44-69. [PMID: 35282869 DOI: 10.1016/j.pnmrs.2021.09.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 09/10/2021] [Accepted: 09/11/2021] [Indexed: 06/14/2023]
Abstract
Hyperpolarized nuclear magnetic resonance and lab-on-a-chip microfluidics are two dynamic, but until recently quite distinct, fields of research. Recent developments in both areas increased their synergistic overlap. By microfluidic integration, many complex experimental steps can be brought together onto a single platform. Microfluidic devices are therefore increasingly finding applications in medical diagnostics, forensic analysis, and biomedical research. In particular, they provide novel and powerful ways to culture cells, cell aggregates, and even functional models of entire organs. Nuclear magnetic resonance is a non-invasive, high-resolution spectroscopic technique which allows real-time process monitoring with chemical specificity. It is ideally suited for observing metabolic and other biological and chemical processes in microfluidic systems. However, its intrinsically low sensitivity has limited its application. Recent advances in nuclear hyperpolarization techniques may change this: under special circumstances, it is possible to enhance NMR signals by up to 5 orders of magnitude, which dramatically extends the utility of NMR in the context of microfluidic systems. Hyperpolarization requires complex chemical and/or physical manipulations, which in turn may benefit from microfluidic implementation. In fact, many hyperpolarization methodologies rely on processes that are more efficient at the micro-scale, such as molecular diffusion, penetration of electromagnetic radiation into a sample, or restricted molecular mobility on a surface. In this review we examine the confluence between the fields of hyperpolarization-enhanced NMR and microfluidics, and assess how these areas of research have mutually benefited one another, and will continue to do so.
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Affiliation(s)
- James Eills
- Institute for Physics, Johannes Gutenberg University, D-55090 Mainz, Germany; GSI Helmholtzzentrum für Schwerionenforschung GmbH, Helmholtz-Institut Mainz, 55128 Mainz, Germany.
| | - William Hale
- Department of Chemistry, University of Florida, 32611, USA
| | - Marcel Utz
- School of Chemistry, University of Southampton, SO17 1BJ, UK.
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21
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Wu Y, Yang W, Zhu F, Liu P, Ba Y. Numerical study of particle separation with standing surface acoustic waves (SSAW). POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2021.09.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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22
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Rich J, Tian Z, Huang TJ. Sonoporation: Past, Present, and Future. ADVANCED MATERIALS TECHNOLOGIES 2022; 7:2100885. [PMID: 35399914 PMCID: PMC8992730 DOI: 10.1002/admt.202100885] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Indexed: 05/09/2023]
Abstract
A surge of research in intracellular delivery technologies is underway with the increased innovations in cell-based therapies and cell reprogramming. Particularly, physical cell membrane permeabilization techniques are highlighted as the leading technologies because of their unique features, including versatility, independence of cargo properties, and high-throughput delivery that is critical for providing the desired cell quantity for cell-based therapies. Amongst the physical permeabilization methods, sonoporation holds great promise and has been demonstrated for delivering a variety of functional cargos, such as biomolecular drugs, proteins, and plasmids, to various cells including cancer, immune, and stem cells. However, traditional bubble-based sonoporation methods usually require special contrast agents. Bubble-based sonoporation methods also have high chances of inducing irreversible damage to critical cell components, lowering the cell viability, and reducing the effectiveness of delivered cargos. To overcome these limitations, several novel non-bubble-based sonoporation mechanisms are under development. This review will cover both the bubble-based and non-bubble-based sonoporation mechanisms being employed for intracellular delivery, the technologies being investigated to overcome the limitations of traditional platforms, as well as perspectives on the future sonoporation mechanisms, technologies, and applications.
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Affiliation(s)
- Joseph Rich
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Zhenhua Tian
- Department of Aerospace Engineering, Mississippi State University, Mississippi State, MS, 39762, USA
| | - Tony Jun Huang
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
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23
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Experimental study on particles directed transport by an alternating travelling-wave electrostatic field. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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24
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Teixeira A, Carneiro A, Piairo P, Xavier M, Ainla A, Lopes C, Sousa-Silva M, Dias A, Martins AS, Rodrigues C, Pereira R, Pires LR, Abalde-Cela S, Diéguez L. Advances in Microfluidics for the Implementation of Liquid Biopsy in Clinical Routine. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1379:553-590. [DOI: 10.1007/978-3-031-04039-9_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Derakhshan R, Ramiar A, Ghasemi A. Continuous size-based DEP separation of particles using a bi-gap electrode pair. Analyst 2022; 147:5395-5408. [DOI: 10.1039/d2an01308h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The design, fabrication, and characterization of an advanced microfluidic device containing a bi-gap electrode pair for the continuous separation of three different populations of particles based on their size using DEP are presented.
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Affiliation(s)
- Reza Derakhshan
- PhD Student, Mechanical Engineering Department, Microfluidics and MEMS lab, Babol Noshirvani University of Technology, Babol, Iran
| | - Abas Ramiar
- Associate professor, Faculty of Mechanical Engineering, Microfluidics and MEMS lab, Babol Noshirvani University of Technology, Babol, Iran
| | - Amirhosein Ghasemi
- PhD, Mechanical Engineering Department, Microfluidics and MEMS lab, Babol Noshirvani University of Technology, Babol, Iran
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26
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Wang Z, Zhou Y, Chen M. Computer‐Aided
Living Polymerization Conducted under
Continuous‐Flow
Conditions
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100544] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zeyu Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University Shanghai 200438 China
| | - Yang Zhou
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University Shanghai 200438 China
| | - Mao Chen
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University Shanghai 200438 China
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27
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Olm F, Panse L, Dykes JH, Bexell D, Laurell T, Scheding S. Label-free separation of neuroblastoma patient-derived xenograft (PDX) cells from hematopoietic progenitor cell products by acoustophoresis. Stem Cell Res Ther 2021; 12:542. [PMID: 34654486 PMCID: PMC8518319 DOI: 10.1186/s13287-021-02612-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 09/23/2021] [Indexed: 11/23/2022] Open
Abstract
Background Graft-contaminating tumor cells correlate with inferior outcome in high-risk neuroblastoma patients undergoing hematopoietic stem cell transplantation and can contribute to relapse. Motivated by the potential therapeutic benefit of tumor cell removal as well as the high prognostic and diagnostic value of isolated circulating tumor cells from stem cell grafts, we established a label-free acoustophoresis-based microfluidic technology for neuroblastoma enrichment and removal from peripheral blood progenitor cell (PBPC) products. Methods Neuroblastoma patient-derived xenograft (PDX) cells were spiked into PBPC apheresis samples as a clinically relevant model system. Cells were separated by ultrasound in an acoustophoresis microchip and analyzed for recovery, purity and function using flow cytometry, quantitative real-time PCR and cell culture. Results PDX cells and PBPCs showed distinct size distributions, which is an important parameter for efficient acoustic separation. Acoustic cell separation did not affect neuroblastoma cell growth. Acoustophoresis allowed to effectively separate PDX cells from spiked PBPC products. When PBPCs were spiked with 10% neuroblastoma cells, recoveries of up to 98% were achieved for PDX cells while more than 90% of CD34+ stem and progenitor cells were retained in the graft. At clinically relevant tumor cell contamination rates (0.1 and 0.01% PDX cells in PBPCs), neuroblastoma cells were depleted by more than 2-log as indicated by RT-PCR analysis of PHOX2B, TH and DDC genes, while > 85% of CD34+ cells could be retained in the graft. Conclusion These results demonstrate the potential use of label-free acoustophoresis for PBPC processing and its potential to develop label-free, non-contact tumor cell enrichment and purging procedures for future clinical use. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-021-02612-2.
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Affiliation(s)
- Franziska Olm
- Lund Stem Cell Centre and Division of Molecular Haematology, Department of Laboratory Medicine, Lund University, Klinikgatan 26, BMC B12, 221 84, Lund, Sweden
| | - Lena Panse
- Lund Stem Cell Centre and Division of Molecular Haematology, Department of Laboratory Medicine, Lund University, Klinikgatan 26, BMC B12, 221 84, Lund, Sweden.,Department of Biotechnology, Technical University Berlin, Berlin, Germany
| | - Josefina H Dykes
- Division of Haematology and Transfusion Medicine, Department of Laboratory Medicine, University and Regional Laboratories, Lund, Sweden
| | - Daniel Bexell
- Division of Translational Cancer Research, Department of Laboratory Medicine, Lund University Cancer Center, Lund University, Lund, Sweden
| | - Thomas Laurell
- Division of Nanobiotechnology and Lab-On-a-Chip, Department of Biomedical Engineering, Lund University, Lund, Sweden
| | - Stefan Scheding
- Lund Stem Cell Centre and Division of Molecular Haematology, Department of Laboratory Medicine, Lund University, Klinikgatan 26, BMC B12, 221 84, Lund, Sweden. .,Department of Haematology, Skåne University Hospital, Lund, Sweden.
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28
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Otomo R, Kira R. The Effect of the Layered Internal Structure of Fibrous Beds on the Hydrodynamic Diffusive Behavior of Microparticles. MICROMACHINES 2021; 12:mi12101241. [PMID: 34683291 PMCID: PMC8540851 DOI: 10.3390/mi12101241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/11/2021] [Accepted: 10/12/2021] [Indexed: 11/29/2022]
Abstract
To separate and collect microparticles such as cells, the behavior of particles in fibrous filters was investigated. It is essential to understand, in detail, the motion of particles in microscale flows, because Re is often small, and particles exhibit complex behaviors such as changes in relative position and spreading owing to hydrodynamic interactions. We calculated the motion of microparticles passing through the fibrous bed using the Stokesian dynamics method, in which hydrodynamic interaction is considered, theoretically. The fibrous bed was modeled by particles and five types of structures (a monolayer with fiber volume fractions φ of 3%, 4%, and 5%, and a bilayer with φ = 3%−5% and 5%−3%) were considered. Our numerical results showed that the particles moved in a complicated manner, and spread throughout the fibrous bed. It was found that the behavior of individual microparticles varied depending on the internal structure, although the average permeation velocity was primarily determined by the fiber volume fraction. This great dependence of the behavior of particle assemblage on the internal structure of the fibrous bed was caused by the individual particle motion under the influence of the layers in front of and behind them, owing to the hydrodynamic interaction.
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29
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Takao J, Endo T, Hisamoto H, Sueyoshi K. Direct Measurement of Initial Rate of Enzyme Reaction by Electrokinetic Filtration Using a Hydrogel-plugged Capillary Device. ANAL SCI 2021; 37:1439-1446. [PMID: 33840683 DOI: 10.2116/analsci.21p067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A novel electrokinetic filtration device using a plugged hydrogel was developed to directly measure the initial rate of enzyme reactions. In the proposed method, the enzyme reaction proceeded only for a short time when the substrate was passed through a thin layer of enzyme trapped by the hydrogel without any lag times for mixing and detection. In experimental conditions, alkaline phosphatase (enzyme) was filtrated at a cathodic-side interface of the plugged hydrogel by molecular sieving effect, providing the thin enzyme zone whose thickness was approximately 100 μm. When 4-methylumberiferyl phosphate (substrate) was electrokinetically introduced into the device after trapping the enzyme, 4-methylumberiferone (product) was generated by the enzyme reaction for only 1.26 s as the substrate passed through the trapped enzyme zone. As a result, the initial rate of the enzyme reaction could be directly calculated to 31.0 μM/s by simply dividing the concentration of the product by the tunable reaction time. Compared to the initial rate obtained by mixing the enzyme and substrate solutions, the value of the maximum velocity of the enzyme reaction was 30-fold larger than that in the mixing method due to the preconcentration of the enzyme by trapping. The Michaelis-Menten constant in the proposed method was 2.7-fold larger than that in the mixing method, suggesting the variation of changes in the equilibrium of complex formation under the experimental conditions.
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Affiliation(s)
- Junku Takao
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University
| | - Tatsuro Endo
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University
| | - Hideaki Hisamoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University
| | - Kenji Sueyoshi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University.,Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO)
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30
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Clark AS, San-Miguel A. A bioinspired, passive microfluidic lobe filtration system. LAB ON A CHIP 2021; 21:3762-3774. [PMID: 34581374 PMCID: PMC8486309 DOI: 10.1039/d1lc00449b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Size-based microfluidic filtration systems can be affected by clogging, which prevents their use in high-throughput and continuous applications. To address these concerns, we have developed two microfluidic lobe filters bioinspired by the filtration mechanism of two species of manta ray. These chips enable filtration of particles around 10-30 μm with precise control and high throughput by using two arrays of equally spaced filter lobes. For each filter design, we investigated multiple inlet flow rates and particle sizes to identify successful operational parameters. Filtration efficiency increases with fluid flow rate, suggesting that particle inertial effects play a key role in lobe filter separation. Microparticle filtration efficiencies up to 99% were obtainable with inlet flow rates of 20 mL min-1. Each filter design successfully increased microparticle concentrations by a factor of two or greater at different inlet flow rates ranging from 6-16 mL min-1. At higher inlet flow rates, ANSYS Fluent simulations of each device revealed a complex velocity profile that contains three local maxima and two inflection points. Ultimately, we show that distances from the lobe array to the closest local maxima and inflection point of the velocity profile can be used to successfully estimate lobe filtration efficiency at each operational flow rate.
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Affiliation(s)
- Andrew S Clark
- Department of Chemical & Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA.
| | - Adriana San-Miguel
- Department of Chemical & Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA.
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31
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Liu G, Lei J, Cheng F, Li K, Ji X, Huang Z, Guo Z. Ultrasonic Particle Manipulation in Glass Capillaries: A Concise Review. MICROMACHINES 2021; 12:876. [PMID: 34442498 PMCID: PMC8398087 DOI: 10.3390/mi12080876] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 07/21/2021] [Accepted: 07/21/2021] [Indexed: 12/23/2022]
Abstract
Ultrasonic particle manipulation (UPM), a non-contact and label-free method that uses ultrasonic waves to manipulate micro- or nano-scale particles, has recently gained significant attention in the microfluidics community. Moreover, glass is optically transparent and has dimensional stability, distinct acoustic impedance to water and a high acoustic quality factor, making it an excellent material for constructing chambers for ultrasonic resonators. Over the past several decades, glass capillaries are increasingly designed for a variety of UPMs, e.g., patterning, focusing, trapping and transporting of micron or submicron particles. Herein, we review established and emerging glass capillary-transducer devices, describing their underlying mechanisms of operation, with special emphasis on the application of glass capillaries with fluid channels of various cross-sections (i.e., rectangular, square and circular) on UPM. We believe that this review will provide a superior guidance for the design of glass capillary-based UPM devices for acoustic tweezers-based research.
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Affiliation(s)
- Guotian Liu
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, Guangdong University of Technology, Guangzhou 510006, China; (G.L.); (F.C.); (K.L.); (X.J.); (Z.H.); (Z.G.)
- Guangzhou Key Laboratory of Non-Traditional Manufacturing Technology and Equipment, Guangdong University of Technology, Guangzhou 510006, China
| | - Junjun Lei
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, Guangdong University of Technology, Guangzhou 510006, China; (G.L.); (F.C.); (K.L.); (X.J.); (Z.H.); (Z.G.)
- Guangzhou Key Laboratory of Non-Traditional Manufacturing Technology and Equipment, Guangdong University of Technology, Guangzhou 510006, China
| | - Feng Cheng
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, Guangdong University of Technology, Guangzhou 510006, China; (G.L.); (F.C.); (K.L.); (X.J.); (Z.H.); (Z.G.)
- Guangzhou Key Laboratory of Non-Traditional Manufacturing Technology and Equipment, Guangdong University of Technology, Guangzhou 510006, China
| | - Kemin Li
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, Guangdong University of Technology, Guangzhou 510006, China; (G.L.); (F.C.); (K.L.); (X.J.); (Z.H.); (Z.G.)
- Guangzhou Key Laboratory of Non-Traditional Manufacturing Technology and Equipment, Guangdong University of Technology, Guangzhou 510006, China
| | - Xuanrong Ji
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, Guangdong University of Technology, Guangzhou 510006, China; (G.L.); (F.C.); (K.L.); (X.J.); (Z.H.); (Z.G.)
| | - Zhigang Huang
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, Guangdong University of Technology, Guangzhou 510006, China; (G.L.); (F.C.); (K.L.); (X.J.); (Z.H.); (Z.G.)
- Guangzhou Key Laboratory of Non-Traditional Manufacturing Technology and Equipment, Guangdong University of Technology, Guangzhou 510006, China
| | - Zhongning Guo
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, Guangdong University of Technology, Guangzhou 510006, China; (G.L.); (F.C.); (K.L.); (X.J.); (Z.H.); (Z.G.)
- Guangzhou Key Laboratory of Non-Traditional Manufacturing Technology and Equipment, Guangdong University of Technology, Guangzhou 510006, China
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Wang Y, Nunna BB, Talukder N, Etienne EE, Lee ES. Blood Plasma Self-Separation Technologies during the Self-Driven Flow in Microfluidic Platforms. Bioengineering (Basel) 2021; 8:94. [PMID: 34356201 PMCID: PMC8301051 DOI: 10.3390/bioengineering8070094] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 06/19/2021] [Accepted: 06/30/2021] [Indexed: 02/06/2023] Open
Abstract
Blood plasma is the most commonly used biofluid in disease diagnostic and biomedical analysis due to it contains various biomarkers. The majority of the blood plasma separation is still handled with centrifugation, which is off-chip and time-consuming. Therefore, in the Lab-on-a-chip (LOC) field, an effective microfluidic blood plasma separation platform attracts researchers' attention globally. Blood plasma self-separation technologies are usually divided into two categories: active self-separation and passive self-separation. Passive self-separation technologies, in contrast with active self-separation, only rely on microchannel geometry, microfluidic phenomena and hydrodynamic forces. Passive self-separation devices are driven by the capillary flow, which is generated due to the characteristics of the surface of the channel and its interaction with the fluid. Comparing to the active plasma separation techniques, passive plasma separation methods are more considered in the microfluidic platform, owing to their ease of fabrication, portable, user-friendly features. We propose an extensive review of mechanisms of passive self-separation technologies and enumerate some experimental details and devices to exploit these effects. The performances, limitations and challenges of these technologies and devices are also compared and discussed.
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Affiliation(s)
- Yudong Wang
- Advanced Energy Systems and Microdevices Laboratory, Department of Mechanical and Industrial Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA; (Y.W.); (B.B.N.); (N.T.); (E.E.E.)
| | - Bharath Babu Nunna
- Advanced Energy Systems and Microdevices Laboratory, Department of Mechanical and Industrial Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA; (Y.W.); (B.B.N.); (N.T.); (E.E.E.)
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Harvard University, Cambridge, MA 02139, USA
| | - Niladri Talukder
- Advanced Energy Systems and Microdevices Laboratory, Department of Mechanical and Industrial Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA; (Y.W.); (B.B.N.); (N.T.); (E.E.E.)
| | - Ernst Emmanuel Etienne
- Advanced Energy Systems and Microdevices Laboratory, Department of Mechanical and Industrial Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA; (Y.W.); (B.B.N.); (N.T.); (E.E.E.)
| | - Eon Soo Lee
- Advanced Energy Systems and Microdevices Laboratory, Department of Mechanical and Industrial Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA; (Y.W.); (B.B.N.); (N.T.); (E.E.E.)
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Kandemir MH, Wagterveld RM, Yntema DR, Keesman KJ. Selective particle separation on centimeter scale using a dual frequency dynamic acoustic field. ULTRASONICS 2021; 114:106411. [PMID: 33730595 DOI: 10.1016/j.ultras.2021.106411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 02/04/2021] [Accepted: 02/23/2021] [Indexed: 06/12/2023]
Abstract
This study investigated the application of dual-frequency type dynamic acoustic fields for size-selective particle separation on centimeter scale in a continuous flow. The 3D-printed X-shaped prototype has two inlets and two outlets. The dynamic acoustic field is generated by two transducers positioned under an angle of 60° and operating at slightly different frequencies. The acoustic reflections are eliminated by placing sound-absorbing material inside the prototype and the non-resonant operation is confirmed by the electrical admittance measurements. Numerical calculations suggested that pressure generated by each transducer does not need to have equal amplitude. Computer simulations and lab experiments were carried out for different frequency differences and flow rates. The results demonstrated the ability of dual-frequency dynamic acoustic fields for size-selective particle filtration on centimeter scale, with a total flow rate up to.1Lh-1.
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Affiliation(s)
- M H Kandemir
- Wageningen University & Research, Mathematical and Statistical Methods - Biometris, Droevendaalsesteeg 1, 6708 PB Wageningen, the Netherlands; Wetsus, European Center of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, the Netherlands
| | - R M Wagterveld
- Wetsus, European Center of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, the Netherlands
| | - D R Yntema
- Wetsus, European Center of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, the Netherlands
| | - K J Keesman
- Wageningen University & Research, Mathematical and Statistical Methods - Biometris, Droevendaalsesteeg 1, 6708 PB Wageningen, the Netherlands; Wetsus, European Center of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, the Netherlands.
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DEM-LBM simulation of multidimensional fractionation by size and density through deterministic lateral displacement at various Reynolds numbers. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2021.02.062] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Lombardo JA, Aliaghaei M, Nguyen QH, Kessenbrock K, Haun JB. Microfluidic platform accelerates tissue processing into single cells for molecular analysis and primary culture models. Nat Commun 2021; 12:2858. [PMID: 34001902 PMCID: PMC8128882 DOI: 10.1038/s41467-021-23238-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Accepted: 04/20/2021] [Indexed: 02/03/2023] Open
Abstract
Tissues are complex mixtures of different cell subtypes, and this diversity is increasingly characterized using high-throughput single cell analysis methods. However, these efforts are hindered, as tissues must first be dissociated into single cell suspensions using methods that are often inefficient, labor-intensive, highly variable, and potentially biased towards certain cell subtypes. Here, we present a microfluidic platform consisting of three tissue processing technologies that combine tissue digestion, disaggregation, and filtration. The platform is evaluated using a diverse array of tissues. For kidney and mammary tumor, microfluidic processing produces 2.5-fold more single cells. Single cell RNA sequencing further reveals that endothelial cells, fibroblasts, and basal epithelium are enriched without affecting stress response. For liver and heart, processing time is dramatically reduced. We also demonstrate that recovery of cells from the system at periodic intervals during processing increases hepatocyte and cardiomyocyte numbers, as well as increases reproducibility from batch-to-batch for all tissues.
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Affiliation(s)
- Jeremy A Lombardo
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, USA
| | - Marzieh Aliaghaei
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, Irvine, CA, USA
| | - Quy H Nguyen
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, Irvine, CA, USA
| | - Kai Kessenbrock
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, Irvine, CA, USA
- Chao Family Comprehensive Cancer Center, University of California, Irvine, Irvine, CA, USA
| | - Jered B Haun
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, USA.
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, Irvine, CA, USA.
- Chao Family Comprehensive Cancer Center, University of California, Irvine, Irvine, CA, USA.
- Department of Materials Science and Engineering, University of California, Irvine, Irvine, CA, USA.
- Center for Advanced Design and Manufacturing of Integrated Microfluidics, University of California, Irvine, Irvine, CA, USA.
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36
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Li L, Shields CW, Huang J, Zhang Y, Ohiri KA, Yellen BB, Chilkoti A, López GP. Rapid capture of biomolecules from blood via stimuli-responsive elastomeric particles for acoustofluidic separation. Analyst 2021; 145:8087-8096. [PMID: 33079081 DOI: 10.1039/d0an01164a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The detection of biomarkers in blood often requires extensive and time-consuming sample preparation to remove blood cells and concentrate the biomarker(s) of interest. We demonstrate proof-of-concept for a chip-based, acoustofluidic method that enables the rapid capture and isolation of a model protein biomarker (i.e., streptavidin) from blood for off-chip quantification. Our approach makes use of two key components - namely, soluble, thermally responsive polypeptides fused to ligands for the homogeneous capture of biomarkers from whole blood and silicone microparticles functionalized with similar, tethered, thermally responsive polypeptides. When the two components are mixed together and subjected to a mild thermal trigger, the thermally responsive moieties undergo a phase transition, causing the untethered (soluble) polypeptides to co-aggregate with the particle-bound polypeptides. The mixture is then diluted with warm buffer and injected into a microfluidic channel supporting a bulk acoustic standing wave. The biomarker-bearing particles migrate to the pressure antinodes, whereas blood cells migrate to the pressure node, leading to rapid separation with efficiencies exceeding 90% in a single pass. The biomarker-bearing particles can then be analyzed via flow cytometry, with a limit of detection of 0.75 nM for streptavidin spiked in blood plasma. Finally, by cooling the solution below the solubility temperature of the polypeptides, greater than 75% of the streptavidin is released from the microparticles, offering a unique approach for downstream analysis (e.g., sequencing or structural analysis). Overall, this methodology has promise for the detection, enrichment and analysis of some biomarkers from blood and other complex biological samples.
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Affiliation(s)
- Linying Li
- NSF Research Triangle Materials Research Science and Engineering Center, Durham, NC 27708, USA.
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Hill N, De Peña AC, Miller A, Lapizco-Encinas BH. On the potential of microscale electrokinetic cascade devices. Electrophoresis 2021; 42:2474-2482. [PMID: 33970503 DOI: 10.1002/elps.202100069] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/20/2021] [Accepted: 04/24/2021] [Indexed: 12/22/2022]
Abstract
Phages used for phage therapy of multidrug resistant bacteria must be highly purified prior to use. There are limited purification approaches that are broadly applicable to many phage types. Electrokinetics has shown great potential to manipulate phages, but obstructions from the cell debris produced during phage propagation can severely diminish the capacity of an electrokinetic device to concentrate and purify phage samples. A multipart insulator-based electrokinetic device is proposed here to remove the larger, undesirable components of mixtures from phage preparations while transferring the freshly purified and concentrated sample to a second stage for downstream analysis. By combining the large debris prescreen and analysis stages in a streamlined system, this approach simultaneously reduces the impact of clogging and minimizes the sample loss observed during manual transferring of purified samples. Polystyrene particles were used to demonstrate a diminished sample loss of approximately one order of magnitude when using the cascade device as opposed to a manual transfer scheme. The purification and concentration of three different phage samples were demonstrated using the first stage of the cascade device as a prescreen. This design provides a simple method of purifying and concentrating valuable samples from a complex mixture that might impede separation capacity in a single channel.
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Affiliation(s)
- Nicole Hill
- Microscale Bioseparations Laboratory and Biomedical Engineering Department, Rochester Institute of Technology, Rochester, NY, USA
| | - Adriana Coll De Peña
- Microscale Bioseparations Laboratory and Biomedical Engineering Department, Rochester Institute of Technology, Rochester, NY, USA.,Thomas H. Gosnell School of Life Sciences, Rochester Institute of Technology, Rochester, NY, USA
| | - Abbi Miller
- Microscale Bioseparations Laboratory and Biomedical Engineering Department, Rochester Institute of Technology, Rochester, NY, USA
| | - Blanca H Lapizco-Encinas
- Microscale Bioseparations Laboratory and Biomedical Engineering Department, Rochester Institute of Technology, Rochester, NY, USA
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Rapid and Sensitive Point of Care Detection of MRSA Genomic DNA by Nanoelectrokinetic Sensors. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9050097] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Biosensors have shown great potential in realizing rapid, low cost, and portable on-site detection for diseases. This work reports the development of a new bioelectronic sensor called AC electrokinetics-based capacitive (ABC) biosensor, for the detection of genomic DNA (gDNA) of methicillin-resistant Staphylococcus aureus (MRSA). The ABC sensor is based on interdigitated microelectrodes biofunctionalized with oligonucleotide probes. It uses a special AC signal for direct capacitive monitoring of topological change on nanostructured sensor surface, which simultaneously induces dielectrophoretic enrichment of target gDNAs. As a result, rapid and specific detection of gDNA/probe hybridization can be realized with high sensitivity. It requires no signal amplification such as labeling, hybridization chain reaction, or nucleic acid sequence-based amplification. This method involves only simple sample preparation. After optimization of nanostructured sensor surface and signal processing, the ABC sensor demonstrated fast turnaround of results (~10 s detection), excellent sensitivity (a detection limit of 4.7 DNA copies/µL MRSA gDNA), and high specificity, suitable for point of care diagnosis. As a bioelectronic sensor, the developed ABC sensors can be easily adapted for detections of other infectious agents.
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Vitorino R, Guedes S, da Costa JP, Kašička V. Microfluidics for Peptidomics, Proteomics, and Cell Analysis. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1118. [PMID: 33925983 PMCID: PMC8145566 DOI: 10.3390/nano11051118] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 04/20/2021] [Accepted: 04/23/2021] [Indexed: 12/18/2022]
Abstract
Microfluidics is the advanced microtechnology of fluid manipulation in channels with at least one dimension in the range of 1-100 microns. Microfluidic technology offers a growing number of tools for manipulating small volumes of fluid to control chemical, biological, and physical processes relevant to separation, analysis, and detection. Currently, microfluidic devices play an important role in many biological, chemical, physical, biotechnological and engineering applications. There are numerous ways to fabricate the necessary microchannels and integrate them into microfluidic platforms. In peptidomics and proteomics, microfluidics is often used in combination with mass spectrometric (MS) analysis. This review provides an overview of using microfluidic systems for peptidomics, proteomics and cell analysis. The application of microfluidics in combination with MS detection and other novel techniques to answer clinical questions is also discussed in the context of disease diagnosis and therapy. Recent developments and applications of capillary and microchip (electro)separation methods in proteomic and peptidomic analysis are summarized. The state of the art of microchip platforms for cell sorting and single-cell analysis is also discussed. Advances in detection methods are reported, and new applications in proteomics and peptidomics, quality control of peptide and protein pharmaceuticals, analysis of proteins and peptides in biomatrices and determination of their physicochemical parameters are highlighted.
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Affiliation(s)
- Rui Vitorino
- UnIC, Departamento de Cirurgia e Fisiologia, Faculdade de Medicina da Universidade do Porto, 4785-999 Porto, Portugal
- iBiMED, Department of Medical Sciences, University of Aveiro, 00351234 Aveiro, Portugal
- LAQV/REQUIMTE, Department of Chemistry, University of Aveiro, 00351234 Aveiro, Portugal;
| | - Sofia Guedes
- LAQV/REQUIMTE, Department of Chemistry, University of Aveiro, 00351234 Aveiro, Portugal;
| | - João Pinto da Costa
- Department of Chemistry & Center for Environmental and Marine Studies (CESAM), University of Aveiro, 00351234 Aveiro, Portugal;
| | - Václav Kašička
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemigovo n. 542/2, 166 10 Prague 6, Czech Republic
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Public-Health-Driven Microfluidic Technologies: From Separation to Detection. MICROMACHINES 2021; 12:mi12040391. [PMID: 33918189 PMCID: PMC8066776 DOI: 10.3390/mi12040391] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/25/2021] [Accepted: 03/26/2021] [Indexed: 02/07/2023]
Abstract
Separation and detection are ubiquitous in our daily life and they are two of the most important steps toward practical biomedical diagnostics and industrial applications. A deep understanding of working principles and examples of separation and detection enables a plethora of applications from blood test and air/water quality monitoring to food safety and biosecurity; none of which are irrelevant to public health. Microfluidics can separate and detect various particles/aerosols as well as cells/viruses in a cost-effective and easy-to-operate manner. There are a number of papers reviewing microfluidic separation and detection, but to the best of our knowledge, the two topics are normally reviewed separately. In fact, these two themes are closely related with each other from the perspectives of public health: understanding separation or sorting technique will lead to the development of new detection methods, thereby providing new paths to guide the separation routes. Therefore, the purpose of this review paper is two-fold: reporting the latest developments in the application of microfluidics for separation and outlining the emerging research in microfluidic detection. The dominating microfluidics-based passive separation methods and detection methods are discussed, along with the future perspectives and challenges being discussed. Our work inspires novel development of separation and detection methods for the benefits of public health.
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41
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Shim S, Khodaparast S, Lai CY, Yan J, Ault JT, Rallabandi B, Shardt O, Stone HA. CO 2-Driven diffusiophoresis for maintaining a bacteria-free surface. SOFT MATTER 2021; 17:2568-2576. [PMID: 33514979 DOI: 10.1039/d0sm02023k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Dissolution and dissociation of CO2 in an aqueous phase induce diffusiophoretic motion of suspended particles with a nonzero surface charge. We report CO2-driven diffusiophoresis of colloidal particles and bacterial cells in a circular Hele-Shaw geometry. Combining experiments and model calculations, we identify the characteristic length and time scales of CO2-driven diffusiophoresis in relation to system dimensions and CO2 diffusivity. The motion of colloidal particles driven by a CO2 gradient is characterized by measuring the average velocities of particles as a function of distance from the CO2 sources. In the same geometrical configurations, we demonstrate that the directional migration of wild-type V. cholerae and a mutant lacking flagella, as well as S. aureus and P. aeruginosa, near a dissolving CO2 source is diffusiophoresis, not chemotaxis. Such a directional response of the cells to CO2 (or an ion) concentration gradient shows that diffusiophoresis of bacteria is achieved independent of cell shape, motility and the Gram stain (cell surface structure). Long-time experiments suggest potential applications for bacterial diffusiophoresis to cleaning systems or anti-biofouling surfaces, by reducing the population of the cells near CO2 sources.
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Affiliation(s)
- Suin Shim
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544, USA.
| | | | - Ching-Yao Lai
- Department of Geosciences, Princeton University, Princeton, NJ 08544, USA
| | - Jing Yan
- Department of Molecular, Cellular and Developmental Biology, Quantitative Biology Institute, Yale University, New Haven, CT 06511, USA
| | - Jesse T Ault
- School of Engineering, Brown University, Providence, Rhode Island 02912, USA
| | - Bhargav Rallabandi
- Department of Mechanical Engineering, University of California, Riverside, California 92521, USA
| | - Orest Shardt
- Bernal Institute and School of Engineering, University of Limerick, Castletroy, Limerick V94 T9PX, Ireland
| | - Howard A Stone
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544, USA.
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42
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Size selective particle filtering on centimeter scale by frequency sweep type dynamic acoustic field. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Miyagawa A, Okada T. Particle Manipulation with External Field; From Recent Advancement to Perspectives. ANAL SCI 2021; 37:69-78. [PMID: 32921654 DOI: 10.2116/analsci.20sar03] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Physical forces, such as dielectric, magnetic, electric, optical, and acoustic force, provide useful principles for the manipulation of particles, which are impossible or difficult with other approaches. Microparticles, including polymer particles, liquid droplets, and biological cells, can be trapped at a particular position and are also transported to arbitrary locations in an appropriate external physical field. Since the force can be externally controlled by the field strength, we can evaluate physicochemical properties of particles from the shift of the particle location. Most of the manipulation studies are conducted for particles of sub-micrometer or larger dimensions, because the force exerted on nanomaterials or molecules is so weak that their direct manipulation is generally difficult. However, the behavior, interactions, and reactions of such small substances can be indirectly evaluated by observing microparticles, on which the targets are tethered, in a physical field. We review the recent advancements in the manipulation of particles using a physical force and discuss its potentials, advantages, and limitations from fundamental and practical perspectives.
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Affiliation(s)
- Akihisa Miyagawa
- Department of Chemistry, Faculty of Pure and Applied Science, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - Tetsuo Okada
- Department of Chemistry, Tokyo Institute of Technology, Meguro, Tokyo, 152-8551, Japan.
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44
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Dielectrophoresis-field flow fractionation for separation of particles: A critical review. J Chromatogr A 2020; 1637:461799. [PMID: 33385744 DOI: 10.1016/j.chroma.2020.461799] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 12/02/2020] [Accepted: 12/07/2020] [Indexed: 01/22/2023]
Abstract
Dielectrophoresis-field flow fractionation (DEP-FFF) has emerged as an efficient in-vitro, non-invasive, and label-free mechanism to manipulate a variety of nano- and micro-scaled particles in a continuous-flow manner. The technique is mainly used to fractionate particles/cells based on differences in their sizes and/or dielectric properties by employing dielectrophoretic force as an external force field applied perpendicular to the flow direction. The dielectrophoretic force is the result of a spatially non-uniform electric field in the microchannel that can be generated either by exploiting microchannel geometry or using special arrangements of microelectrode arrays. Several two-dimensional (e.g., coplanar interdigitated, castellated) and three-dimensional (e.g., top-bottom, side-wall) microelectrode designs have been successfully utilized to perform fractionation of heterogeneous samples. Although originally introduced as a separation technique, DEP-FFF has attracted increasing interest in performing other important operations such as switching, focusing, dipping, and surface functionalization of target particles. Nonetheless, the technique still suffers from limitations such as low throughput and joule heating. By comparatively analyzing recent developments that address these shortcomings, this work is a step forward towards realizing the full potential of DEP-FFF as an ideal candidate for point-of-care (POC) devices with diverse applications in the fields of biomedical, chemical, and environmental engineering.
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45
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Wang Q, Zhang X, Yin D, Deng J, Yang J, Hu N. A Continuous Cell Separation and Collection Approach on a Microfilter and Negative Dielectrophoresis Combined Chip. MICROMACHINES 2020; 11:mi11121037. [PMID: 33255917 PMCID: PMC7759882 DOI: 10.3390/mi11121037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/18/2020] [Accepted: 11/24/2020] [Indexed: 12/12/2022]
Abstract
Cell separation plays an important role in the fields of analytical chemistry and biomedicine. To solve the blockage problem and improve the separation throughput in the traditional microstructure filtration-based separation approach, a continuous cell separation and collection approach via micropost array railing on a microfilter and negative dielectrophoresis combined chip is proposed. By tilting the micropost array at a certain angle, microparticles or cells enter the collection area under micropost array railing. The effects of the inclination angle of the micropost array and the electrode distance on the microparticle collection efficiency were investigated. Based on the optimized microfluidic chip structure, 37- and 16.3-μm particles were collected with 85% and 89% efficiencies, respectively. Additionally, algal cells were separated and collected by using the optimized microchip. The chip also had good separation and collection effects on biological samples, which effectively solved the blockage problem and improved the separation throughput, laying a foundation for subsequent microstructure filtration separation-based research and application.
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Affiliation(s)
- Qiong Wang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400030, China; (Q.W.); (D.Y.); (J.D.); (J.Y.)
- School of Health and Aging Service, Chongqing City Management College, Chongqing 401331, China
| | - Xiaoling Zhang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400030, China; (Q.W.); (D.Y.); (J.D.); (J.Y.)
- Correspondence: (X.Z.); (N.H.); Tel.: +86-23-6510-2291 (N.H.)
| | - Danfen Yin
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400030, China; (Q.W.); (D.Y.); (J.D.); (J.Y.)
| | - Jinan Deng
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400030, China; (Q.W.); (D.Y.); (J.D.); (J.Y.)
| | - Jun Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400030, China; (Q.W.); (D.Y.); (J.D.); (J.Y.)
| | - Ning Hu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400030, China; (Q.W.); (D.Y.); (J.D.); (J.Y.)
- Correspondence: (X.Z.); (N.H.); Tel.: +86-23-6510-2291 (N.H.)
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46
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Spigarelli L, Vasile NS, Pirri CF, Canavese G. Numerical study of the effect of channel aspect ratio on particle focusing in acoustophoretic devices. Sci Rep 2020; 10:19447. [PMID: 33173108 PMCID: PMC7655847 DOI: 10.1038/s41598-020-76367-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 10/27/2020] [Indexed: 11/18/2022] Open
Abstract
Acoustophoretic microfluidic devices are promising non-contact and high-throughput tools for particle manipulation. Although the effectiveness of this technique has been widely demonstrated for applications based on micrometer-sized particles, the manipulation and focusing of sub-micrometer ones is challenging due to the presence of acoustic streaming. In this article, our study has the aim to investigate and understand which geometrical parameters could be changed to limit the acoustic streaming effect. We numerically study the well-known rectangular cross section of a microfluidic channel and perform a parametric study of the aspect ratio for several particle sizes. The efficiency of the focusing, is explored for different sized particles in order to identify a trend for which the acoustic streaming does not drastically influence the focusing motion of the particles. The possibility to efficiently separate different solid components in liquid suspensions, i.e. the whole blood, is crucial for all applications that require a purified medium such as plasmapheresis or an increase of the concentration of specific subpopulation as the outcome, such as proteomics, cancer biomarker detections and extracellular vesicles separation.
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Affiliation(s)
- L Spigarelli
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Turin, Italy.
| | - N S Vasile
- SynBio Lab, Italian Institute of Technology, Via Livorno 60, 10144, Turin, Italy
| | - C F Pirri
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Turin, Italy.,Chilab - Materials and Microsystems Laboratory - DISAT Politecnico di Torino, Via Lungo Piazza d'Armi 6, 10034, Chivasso (Turin), Italy
| | - G Canavese
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Turin, Italy. .,Chilab - Materials and Microsystems Laboratory - DISAT Politecnico di Torino, Via Lungo Piazza d'Armi 6, 10034, Chivasso (Turin), Italy.
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47
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Porter GCE, Sikora SNF, Shim JU, Murray BJ, Tarn MD. On-chip density-based sorting of supercooled droplets and frozen droplets in continuous flow. LAB ON A CHIP 2020; 20:3876-3887. [PMID: 32966480 DOI: 10.1039/d0lc00690d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The freezing of supercooled water to ice and the materials which catalyse this process are of fundamental interest to a wide range of fields. At present, our ability to control, predict or monitor ice formation processes is poor. The isolation and characterisation of frozen droplets from supercooled liquid droplets would provide a means of improving our understanding and control of these processes. Here, we have developed a microfluidic platform for the continuous flow separation of frozen from unfrozen picolitre droplets based on differences in their density, thus allowing the sorting of ice crystals and supercooled water droplets into different outlet channels with 94 ± 2% efficiency. This will, in future, facilitate downstream or off-chip processing of the frozen and unfrozen populations, which could include the analysis and characterisation of ice-active materials or the selection of droplets with a particular ice-nucleating activity.
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Affiliation(s)
- Grace C E Porter
- School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, UK. and School of Physics and Astronomy, University of Leeds, Leeds, LS2 9JT, UK
| | | | - Jung-Uk Shim
- School of Physics and Astronomy, University of Leeds, Leeds, LS2 9JT, UK
| | - Benjamin J Murray
- School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, UK.
| | - Mark D Tarn
- School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, UK. and School of Physics and Astronomy, University of Leeds, Leeds, LS2 9JT, UK
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He Y, Mao T, Gu Y, Yang Y, Ding J. A simplified yet enhanced and versatile microfluidic platform for cyclic cell stretching on an elastic polymer. Biofabrication 2020; 12:045032. [DOI: 10.1088/1758-5090/abb295] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Mossige EJ, Jensen A. Clog-Free Trilobite Filtration: Tunable Flow Setup and Velocity Measurements. MICROMACHINES 2020; 11:mi11100904. [PMID: 33003618 PMCID: PMC7600505 DOI: 10.3390/mi11100904] [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: 08/20/2020] [Revised: 09/24/2020] [Accepted: 09/25/2020] [Indexed: 11/16/2022]
Abstract
The ability to separate and filter out microscopic objects lies at the core of many biomedical applications. However, a persistent problem is clogging, as biomaterials stick to the internal chip surface and limit device efficiency and liability. Here, we review an alternative technique that could solve these clogging issues. By leveraging tunable flow fields and particle inertia around special trilobite-shaped filtration units, we perform filtration of plastic beads by size and we demonstrate sorting of live cells. The separation and filtration are performed completely without signs of clogging. However, a clog-free operation relies on a controlled flow configuration to steer the particles and cells away from the filter structures. In this paper, we describe the tunable flow system for such an operation and we describe an optical setup enabling hydrodynamical interactions between particles and cells with the flow fields and direct interactions with the filter structures to be characterized. The optical setup is capable of measuring particle and flow velocities (by Particle Tracking Velocimetry (PTV), Micro Particle Image Velocimetry (μPIV), and streakline visualization) in meters per second necessary to avoid clogging. However, accurate measurements rely on strict calibration and validation procedures to be followed, and we devote a substantial portion of our paper to laying out such procedures. A comparison between μPIV data and a known flow profile is particularly valuable for assessing measurement accuracy, and this important validation has not been previously published by us. The detail level in our description of the flow configuration and optical system is sufficient to replicate the experiments. In the last part of the paper, we review an assessment of the device performance when handling rigid spheres and live cells. We deconvolute the influences of cell shape from effects of size and find that the shape has only a weak influence on device performance.
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Wang X, Zhang D, Wu J, Protsak I, Mao S, Ma C, Ma M, Zhong M, Tan J, Yang J. Novel Salt-Responsive SiO 2@Cellulose Membranes Promote Continuous Gradient and Adjustable Transport Efficiency. ACS APPLIED MATERIALS & INTERFACES 2020; 12:42169-42178. [PMID: 32835481 DOI: 10.1021/acsami.0c12399] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Continuously growing interest in the controlled and tunable transport or separation of target molecules has attracted more attention recently. However, traditional "on-off" stimuli-responsive membranes are limited to nongradient feedback, which manifests as filtration efficiency that cannot be increased or decreased gradually along with the different stimuli conditions; indeed, only the transformation of on/off state is visible. Herein, we design and fabricate a series of robust salt-responsive SiO2@cellulose membranes (SRMs) by simply combining salt-responsive poly[3-(dimethyl(4-vinylbenzyl)ammonium)propyl sulfonate] (polyDVBAPS)-modified SiO2 nanoparticles and cellulose membranes under negative-pressure filtering. The antipolyelectrolyte effect induces stretch/shrinkage of polyDVBAPS chains inside the channels and facilities the directional aperture size and surface wettability variation, greatly enhancing the variability of interfacial transport and separation efficiency. Due to the linear salt-responsive feedback mechanism, the optimal SRMs achieve highly efficient target macromolecule separation (>75%) and rapid oil/saline separation (>97%) with a continuous gradient and adjustable permeability, instead of simply an "on-off" switch. The salt-responsive factors (SiO2-polyDVBAPS) could be reversibly separated or self-assembled to membrane substrates; thus, SRMs achieved unprecedented repeatability and reusability even after long-term cyclic testing, which exceeds those of currently reported membranes. Such SRMs possess simultaneously a superfast responsive time, a controllable gradient permeability, a high gating ratio, and an excellent reusability, making our strategy a potentially exciting approach for efficient osmotic transportation and target molecule separation in a more controllable manner.
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Affiliation(s)
- Xiaoyu Wang
- College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Dong Zhang
- Department of Chemical, Biomolecular and Corrosion Engineering. The University of Akron, Ohio 44325, United States
| | - Jiahui Wu
- College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Iryna Protsak
- Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine, Kyiv 03164, Ukraine
| | - Shihua Mao
- College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Chunxin Ma
- State Key Laboratory of Marine Resources Utilization in South China Sea, Haikou 570228, PR China
| | - Meng Ma
- College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Mingqiang Zhong
- College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Jun Tan
- College of Biological, Chemical Science and Technology, Jiaxing University, Jiaxing 314001, PR China
| | - Jintao Yang
- College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou 310014, PR China
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