1
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Zhang Q, Hao Y, Zeng T, Shu W, Xue P, Li Y, Huang C, Ouyang L, Zou X, Zhao Z, Wang J, Yu XF, Zhou W. Modular Fabrication of Microfluidic Graphene FET for Nucleic Acids Biosensing. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2401796. [PMID: 39044365 DOI: 10.1002/advs.202401796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 04/30/2024] [Indexed: 07/25/2024]
Abstract
Graphene field-effect transistors (GFETs) are widely used in biosensing due to their excellent properties in biomolecular signal amplification, exhibiting great potential for high-sensitivity and point-of-care testing in clinical diagnosis. However, difficulties in complicated fabrication steps are the main limitations for the further studies and applications of GFETs. In this study, a modular fabrication technique is introduced to construct microfluidic GFET biosensors within 3 independent steps. The low-melting metal electrodes and intricate flow channels are incorporated to maintain the structural integrity of graphene and facilitate subsequent sensing operations. The as-fabricated GFET biosensor demonstrates excellent long-term stability, and performs effectively in various ion environments. It also exhibits high sensitivity and selectivity for detecting single-stranded nucleic acids at a 10 fm concentration. Furthermore, when combined with the CRISPR/Cas12a system, it facilitates amplification-free and rapid detection of nucleic acids at a concentration of 1 fm. Thus, it is believed that this modular-fabricated microfluidic GFET may shed light on further development of FET-based biosensors in various applications.
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Affiliation(s)
- Qiongdi Zhang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Yuxuan Hao
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Tonghua Zeng
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Weiliang Shu
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Pan Xue
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yang Li
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Chi Huang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Liwei Ouyang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Xuming Zou
- Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education and Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices, School of Physics and Electronics, Hunan University, Changsha, 410082, China
| | - Zhen Zhao
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Jiahong Wang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Xue-Feng Yu
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- The Key Laboratory of Biomedical Imaging Science and System, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Wenhua Zhou
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- The Key Laboratory of Biomedical Imaging Science and System, Chinese Academy of Sciences, Shenzhen, 518055, China
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2
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Niu J, Lin S, Xu Y, Tong S, Wang Z, Cui S, Liu Y, Chen D, Cui D. A stepwise multi-stage continuous dielectrophoresis separation microfluidic chip with microfilter structures. Talanta 2024; 279:126585. [PMID: 39053361 DOI: 10.1016/j.talanta.2024.126585] [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: 04/15/2024] [Revised: 07/09/2024] [Accepted: 07/16/2024] [Indexed: 07/27/2024]
Abstract
The separation of target microparticles using microfluidic systems owns extensive applications in biomedical, chemical, and materials science fields. Integration of microfluidic sorting systems employing dielectrophoresis (DEP) technology has been widely investigated. However, enhancing separation efficiency, purity, stability, and integration remains a pressing issue. This study proposes a stepwise multi-stage continuous DEP separation microfluidic chip with a microfilter structure. By leveraging a stepwise electrode configuration, a gradient electric field is generated to drive target microparticles along the electric field gradient, thereby enhancing separation efficiency. Innovative integration of a microfilter structure facilitates simultaneous filtration and improves flow field distribution, thus enhancing system stability. Through the synergistic effect of stepwise electrodes and the microfilter structure, superior coupling of electric and flow fields is achieved, consequently improving the sorting purity, separation efficiency, and system stability of the DEP-based microfluidic sorting system. Validation through simulation and separation of polystyrene microspheres demonstrates the excellent particle separation performance of the proposed system. It evidently shows potential for seamless extension to various biological microparticle sorting applications, harboring significant prospects in the biomedical domain field.
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Affiliation(s)
- Jiaqi Niu
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Shujing Lin
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China; Shanghai Engineering Research Center for Intelligent Diagnosis and Treatment Instrument, Shanghai Jiao Tong University, Shanghai, 200240, PR China.
| | - Yichong Xu
- School of Future Technology, University of Chinese Academy of Sciences, Beijing, PR China
| | - Siyu Tong
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Zhitao Wang
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Shengsheng Cui
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China; Shanghai Engineering Research Center for Intelligent Diagnosis and Treatment Instrument, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Yanlei Liu
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China; Shanghai Engineering Research Center for Intelligent Diagnosis and Treatment Instrument, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Di Chen
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China; Shanghai Engineering Research Center for Intelligent Diagnosis and Treatment Instrument, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Daxiang Cui
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China; Shanghai Engineering Research Center for Intelligent Diagnosis and Treatment Instrument, Shanghai Jiao Tong University, Shanghai, 200240, PR China.
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3
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Rasekh M, Harrison S, Schobesberger S, Ertl P, Balachandran W. Reagent storage and delivery on integrated microfluidic chips for point-of-care diagnostics. Biomed Microdevices 2024; 26:28. [PMID: 38825594 DOI: 10.1007/s10544-024-00709-y] [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] [Accepted: 05/02/2024] [Indexed: 06/04/2024]
Abstract
Microfluidic-based point-of-care diagnostics offer several unique advantages over existing bioanalytical solutions, such as automation, miniaturisation, and integration of sensors to rapidly detect on-site specific biomarkers. It is important to highlight that a microfluidic POC system needs to perform a number of steps, including sample preparation, nucleic acid extraction, amplification, and detection. Each of these stages involves mixing and elution to go from sample to result. To address these complex sample preparation procedures, a vast number of different approaches have been developed to solve the problem of reagent storage and delivery. However, to date, no universal method has been proposed that can be applied as a working solution for all cases. Herein, both current self-contained (stored within the chip) and off-chip (stored in a separate device and brought together at the point of use) are reviewed, and their merits and limitations are discussed. This review focuses on reagent storage devices that could be integrated with microfluidic devices, discussing further issues or merits of these storage solutions in two different sections: direct on-chip storage and external storage with their application devices. Furthermore, the different microvalves and micropumps are considered to provide guidelines for designing appropriate integrated microfluidic point-of-care devices.
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Affiliation(s)
- Manoochehr Rasekh
- College of Engineering, Design and Physical Sciences, Brunel University London, Uxbridge, UB8 3PH, UK.
| | - Sam Harrison
- College of Engineering, Design and Physical Sciences, Brunel University London, Uxbridge, UB8 3PH, UK
| | - Silvia Schobesberger
- Faculty of Technical Chemistry, Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060, Vienna, Austria
| | - Peter Ertl
- Faculty of Technical Chemistry, Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060, Vienna, Austria
| | - Wamadeva Balachandran
- College of Engineering, Design and Physical Sciences, Brunel University London, Uxbridge, UB8 3PH, UK.
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4
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Yang X, Li Y, Lee JZ, Sun Y, Tan X, Liu Y, Yu Y, Li H, Li X. A Highly Sensitive Dual-Drive Microfluidic Device for Multiplexed Detection of Respiratory Virus Antigens. MICROMACHINES 2024; 15:685. [PMID: 38930655 PMCID: PMC11206039 DOI: 10.3390/mi15060685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Revised: 05/17/2024] [Accepted: 05/22/2024] [Indexed: 06/28/2024]
Abstract
Conventional microfluidic systems that rely on capillary force have a fixed structure and limited sensitivity, which cannot meet the demands of clinical applications. Herein, we propose a dual-drive microfluidic device for sensitive and flexible detection of multiple pathogenic microorganisms antigens/antibodies. The device comprises a portable microfluidic analyzer and a dual-drive microfluidic chip. Along with capillary force, a second active driving force is provided by a removable self-driving valve in the waste chamber. The interval between these two driving forces can be adjusted to control the reaction time in the microchannel, optimizing the formation of antigen-antibody complexes and enhancing sensitivity. Moreover, the material used in the self-driving valve can be changed to adjust the active force strength needed for different tests. The device offers quantitative analysis for respiratory syncytial virus antigen and SARS-CoV-2 antigen using a 35 μL sample, delivering results within 5 min. The detection limits of the system were 1.121 ng/mL and 0.447 ng/mL for respiratory syncytial virus recombinant fusion protein and SARS-CoV-2 recombinant nucleoprotein, respectively. Although the dual-drive microfluidic device has been used for immunoassay for respiratory syncytial virus and SARS-CoV-2 in this study, it can be easily adapted to other immunoassay applications by changing the critical reagents.
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Affiliation(s)
- Xiaohui Yang
- Department of Clinical Immunology, School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, China; (X.Y.); (Y.L.); (Y.S.); (X.T.); (Y.Y.); (H.L.)
| | - Yixian Li
- Department of Clinical Immunology, School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, China; (X.Y.); (Y.L.); (Y.S.); (X.T.); (Y.Y.); (H.L.)
| | - Josh Zixi Lee
- Beijing MicVic Biotech Co., Ltd., Beijing 101200, China; (J.Z.L.); (Y.L.)
| | - Yuanmin Sun
- Department of Clinical Immunology, School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, China; (X.Y.); (Y.L.); (Y.S.); (X.T.); (Y.Y.); (H.L.)
| | - Xin Tan
- Department of Clinical Immunology, School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, China; (X.Y.); (Y.L.); (Y.S.); (X.T.); (Y.Y.); (H.L.)
| | - Yijie Liu
- Beijing MicVic Biotech Co., Ltd., Beijing 101200, China; (J.Z.L.); (Y.L.)
| | - Yang Yu
- Department of Clinical Immunology, School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, China; (X.Y.); (Y.L.); (Y.S.); (X.T.); (Y.Y.); (H.L.)
| | - Huiqiang Li
- Department of Clinical Immunology, School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, China; (X.Y.); (Y.L.); (Y.S.); (X.T.); (Y.Y.); (H.L.)
| | - Xue Li
- Department of Clinical Immunology, School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, China; (X.Y.); (Y.L.); (Y.S.); (X.T.); (Y.Y.); (H.L.)
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5
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Vloemans D, Pieters A, Dal Dosso F, Lammertyn J. Revolutionizing sample preparation: a novel autonomous microfluidic platform for serial dilution. LAB ON A CHIP 2024; 24:2791-2801. [PMID: 38691394 DOI: 10.1039/d4lc00195h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
Dilution is a standard fluid operation widely employed in the sample preparation process of many bio(chemical) assays. It serves multiple essential functions such as sample mixing with certain reagents at specific dilution ratios, reducing sample matrix effects, bringing target analytes within the linear assay detection range, among many others. Traditionally, sample processing is performed in laboratory settings through manual or automated pipetting. When working in resource-limited settings, however, neither trained personnel nor proper laboratory equipment are available limiting the accessibility to high-quality diagnostic tests. In this work, we present a novel standalone and fully automated microfluidic platform for the stepwise preparation of serial dilutions without the need for any active elements. Stepwise dilution is achieved using the coordinated burst action of hydrophobic burst valves to first isolate a precisely metered volume from an applied sample drop and subsequently merge it with a prefilled diluent liquid. Downstream, expansion chambers are used to mix both reagents into a homogeneous solution. The dilution module was characterized to generate accurate and reproducible (CV < 7%) dilutions for targeted dilution factors of 2, 5 and 10×, respectively. Three dilution modules were coupled in series to generate three-fold logarithmic (log5 or log10) dilutions, with excellent linearity (R2 > 0.99). Its compatibility with whole blood was furthermore illustrated, proving its applicability for automating and downscaling bioassays with complex biological matrices. Finally, autonomous on-chip serial dilution was demonstrated by incorporating the self-powered (i)SIMPLE technology as a passive driving source for liquid manipulation. We believe that the simplicity and modularity of the presented autonomous dilution platform are of interest to many point-of-care applications in which sample dilution and reagent mixing are of importance.
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Affiliation(s)
- Dries Vloemans
- KU Leuven, Department of Biosystems, Biosensors Group, Willem de Croylaan 42, box 2428, 3001 Leuven, Belgium.
| | - Alexander Pieters
- KU Leuven, Department of Biosystems, Biosensors Group, Willem de Croylaan 42, box 2428, 3001 Leuven, Belgium.
| | - Francesco Dal Dosso
- KU Leuven, Department of Biosystems, Biosensors Group, Willem de Croylaan 42, box 2428, 3001 Leuven, Belgium.
| | - Jeroen Lammertyn
- KU Leuven, Department of Biosystems, Biosensors Group, Willem de Croylaan 42, box 2428, 3001 Leuven, Belgium.
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Chen X, Duan X, Gao Y. Recent Advances in Acoustofluidics for Point-of-Care Testing. Chempluschem 2024; 89:e202300489. [PMID: 37926688 DOI: 10.1002/cplu.202300489] [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: 08/31/2023] [Revised: 10/31/2023] [Accepted: 11/03/2023] [Indexed: 11/07/2023]
Abstract
Point-of-care testing (POCT) has played important role in clinical diagnostics, environmental assessment, chemical and biological analyses, and food and chemical processing due to its faster turnaround compared to laboratory testing. Dedicated manipulations of solutions or particles are generally required to develop POCT technologies that achieve a "sample-in-answer-out" operation. With the development of micro- and nanotechnology, many tools have been developed for sample preparation, on-site analysis and solution manipulations (mixing, pumping, valving, etc.). Among these approaches, the use of acoustic waves to manipulate fluids and particles (named acoustofluidics) has been applied in many researches. This review focuses on the recent developments in acoustofluidics for POCT. It starts with the fundamentals of different acoustic manipulation techniques and then lists some of representative examples to highlight each method in practical POC applications. Looking toward the future, a compact, portable, highly integrated, low power, and biocompatible technique is anticipated to simultaneously achieve precise manipulation of small targets and multimodal manipulation in POC applications.
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Affiliation(s)
- Xian Chen
- Center for Advanced Measurement Science, National Institute of Metrology, East Beisanhuan Road 18, Chaoyang District, Beijing, 100029, China
| | - Xuexin Duan
- State Key Laboratory of Precision Measuring Technology & Instruments and, College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Weijin Road 92, Nankai District, Tianjin, 300072, China
| | - Yunhua Gao
- Center for Advanced Measurement Science, National Institute of Metrology, East Beisanhuan Road 18, Chaoyang District, Beijing, 100029, China
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7
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Cao M, Deng W, Zhu Z, Ma C, Bai J, Emran MY, Kotb A, Sun M, Zhou M. A Fully Integrated Handheld Electrochemical Sensing Platform for Point-of-Care Testing of Escherichia coli O157:H7. Anal Chem 2024; 96:5340-5347. [PMID: 38501977 DOI: 10.1021/acs.analchem.4c00776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Fully integrated devices that enable full functioning execution without or with minimum external accessories or equipment are deemed to be one of the most desirable and ultimate objectives for modern device design and construction. Escherichia coli O157:H7 (E. coli O157:H7) is often linked to outbreaks caused by contaminated water and food. However, the sensors that are currently used for point-of-care E. coli O157:H7 (E. coli O157:H7) detection are often large and cumbersome. Herein, we demonstrate the first example of a handheld and pump-free fully integrated electrochemical sensing platform with the capability to point-of-care test E. coli O157:H7 in the actual samples of E. coli O157:H7-spiked tap water and E. coli O157:H7-spiked watermelon juice. This platform was made possible by overcoming major engineering challenges in the seamless integration of a microfluidic module for pump-free liquid sample collection and transportation, a sensing module for efficient E. coli O157:H7 testing, and an electronic module for automatically converting and wirelessly transmitting signals into a single and compact electrochemical sensing platform that retains its inimitable stand-alone, handheld, pump-free, and cost-effective feature. Although our primary emphasis in this study is on detecting E. coli O157:H7, this pump-free fully integrated handheld electrochemical sensing platform may also be used to monitor other pathogens in food and water by including specific antipathogen antibodies.
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Affiliation(s)
- Mengzhu Cao
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Analysis and Testing Center, Department of Chemistry, Northeast Normal University, Changchun, Jilin Province 130024, China
| | - Wei Deng
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Analysis and Testing Center, Department of Chemistry, Northeast Normal University, Changchun, Jilin Province 130024, China
| | - Ziyu Zhu
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Analysis and Testing Center, Department of Chemistry, Northeast Normal University, Changchun, Jilin Province 130024, China
| | - Chongbo Ma
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Analysis and Testing Center, Department of Chemistry, Northeast Normal University, Changchun, Jilin Province 130024, China
| | - Jing Bai
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Analysis and Testing Center, Department of Chemistry, Northeast Normal University, Changchun, Jilin Province 130024, China
| | - Mohammed Y Emran
- Chemistry Department, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt
| | - Ahmed Kotb
- Chemistry Department, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt
| | - Mimi Sun
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Analysis and Testing Center, Department of Chemistry, Northeast Normal University, Changchun, Jilin Province 130024, China
| | - Ming Zhou
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Analysis and Testing Center, Department of Chemistry, Northeast Normal University, Changchun, Jilin Province 130024, China
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8
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Vloemans D, Van Hileghem L, Ordutowski H, Dal Dosso F, Spasic D, Lammertyn J. Self-Powered Microfluidics for Point-of-Care Solutions: From Sampling to Detection of Proteins and Nucleic Acids. Methods Mol Biol 2024; 2804:3-50. [PMID: 38753138 DOI: 10.1007/978-1-0716-3850-7_1] [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] [Indexed: 05/21/2024]
Abstract
Self-powered microfluidics presents a revolutionary approach to address the challenges of healthcare in decentralized and point-of-care settings where limited access to resources and infrastructure prevails or rapid clinical decision-making is critical. These microfluidic systems exploit physical and chemical phenomena, such as capillary forces and surface tension, to manipulate tiny volumes of fluids without the need for external power sources, making them cost-effective and highly portable. Recent technological advancements have demonstrated the ability to preprogram complex multistep liquid operations within the microfluidic circuit of these standalone systems, which enabled the integration of sensitive detection and readout principles. This chapter first addresses how the accessibility to in vitro diagnostics can be improved by shifting toward decentralized approaches like remote microsampling and point-of-care testing. Next, the crucial role of self-powered microfluidic technologies to enable this patient-centric healthcare transition is emphasized using various state-of-the-art examples, with a primary focus on applications related to biofluid collection and the detection of either proteins or nucleic acids. This chapter concludes with a summary of the main findings and our vision of the future perspectives in the field of self-powered microfluidic technologies and their use for in vitro diagnostics applications.
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Affiliation(s)
- Dries Vloemans
- Department of Biosystems - Biosensors Group, KU Leuven, Leuven, Belgium
| | | | - Henry Ordutowski
- Department of Biosystems - Biosensors Group, KU Leuven, Leuven, Belgium
| | | | - Dragana Spasic
- Department of Biosystems - Biosensors Group, KU Leuven, Leuven, Belgium
| | - Jeroen Lammertyn
- Department of Biosystems - Biosensors Group, KU Leuven, Leuven, Belgium.
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9
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Du Z, Chen L, Yang S. Advancements in the research of finger-actuated POCT chips. Mikrochim Acta 2023; 191:65. [PMID: 38158397 DOI: 10.1007/s00604-023-06140-z] [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: 09/25/2023] [Accepted: 12/05/2023] [Indexed: 01/03/2024]
Abstract
Microfluidic point-of-care testing (POCT) chips are used to enable the mixing and reaction of small sample volumes, facilitating target molecule detection. Traditional methods for actuating POCT chips rely on external pumps or power supplies, which are complex and non-portable. The development of finger-actuated chips has reduced operational difficulty and improved portability, promoting the development of POCT chips. This paper reviews the significance, developments, and potential applications of finger-actuated POCT chips. Three methods for controlling the flow accuracy of finger-actuated chips are summarized: direct push, indirect control, and sample injection control method, along with their respective advantages and disadvantages. Meanwhile, a comprehensive analysis of multi-fluid driving modes is provided, categorizing them into single-push multi-driving and multi-push multi-driving modes. Furthermore, recent research breakthroughs in finger-actuated chips are thoroughly summarized, and their structures, driving, and detection methods are discussed. Finally, this paper discusses the driving performance of finger-actuated chips, the suitability of detection scenarios, and the compatibility with existing detection technologies. It also provides prospects for the future development and application of finger-actuated POCT chips.
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Affiliation(s)
- Zhichang Du
- College of Marine Equipment and Mechanical Engineering, Jimei University, Xiamen, 361021, China
| | - Ling Chen
- College of Marine Equipment and Mechanical Engineering, Jimei University, Xiamen, 361021, China.
| | - Shaohui Yang
- College of Marine Equipment and Mechanical Engineering, Jimei University, Xiamen, 361021, China
- Key Laboratory of Ocean Renewable Energy Equipment of Fujian Province, Xiamen, 361021, China
- Key Laboratory of Energy Cleaning Utilization and Development of Fujian Province, Xiamen, 361021, China
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10
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Shimada T, Fujino K, Yasui T, Kaji N, Ueda Y, Fujii K, Yukawa H, Baba Y. Resistive Pulse Sensing on a Capillary-Assisted Microfluidic Platform for On-Site Single-Particle Analyses. Anal Chem 2023; 95:18335-18343. [PMID: 38064273 DOI: 10.1021/acs.analchem.3c02539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
Capillary-assisted flow is valuable for utilizing microfluidics-based electrical sensing platforms at on-site locations by simplifying microfluidic operations and system construction; however, incorporating capillary-assisted flow in platforms requires easy microfluidic modification and stability over time for capillary-assisted flow generation and sensing performance. Herein, we report a capillary-assisted microfluidics-based electrical sensing platform using a one-step modification of polydimethylsiloxane (PDMS) with polyethylene glycol (PEG). As a model of electrical sensing platforms, this work focused on resistive pulse sensing (RPS) using a micropore in a microfluidic chip for label-free electrical detection of single analytes, and filling the micropore with an electrolyte is the first step to perform this RPS. The PEG-PDMS surfaces remained hydrophilic after ambient storage for 30 d and assisted in generating an electrolyte flow for filling the micropore with the electrolyte. We demonstrated the successful detection and size analysis of micrometer particles and bacterial cells based on RPS using the microfluidic chip stored in a dry state for 30 d. Combining this capillary-assisted microfluidic platform with a portable RPS system makes on-site detection and analysis of single pathogens possible.
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Affiliation(s)
- Taisuke Shimada
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Keiko Fujino
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Takao Yasui
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- Department of Life Science and Technology, Tokyo Institute of Technology, Yokohama 226-8501, Japan
- Japan Science and Technology Agency (JST), PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Noritada Kaji
- Department of Life Science and Technology, Tokyo Institute of Technology, Yokohama 226-8501, Japan
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yasuyuki Ueda
- Institute for Quantum Life Science, National Institutes for Quantum Science and Technology (QST), Anagawa 4-9-1, Inage-ku, Chiba 263-8555, Japan
| | - Kentaro Fujii
- Institute for Quantum Life Science, National Institutes for Quantum Science and Technology (QST), Anagawa 4-9-1, Inage-ku, Chiba 263-8555, Japan
| | - Hiroshi Yukawa
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- Department of Life Science and Technology, Tokyo Institute of Technology, Yokohama 226-8501, Japan
- Institute for Quantum Life Science, National Institutes for Quantum Science and Technology (QST), Anagawa 4-9-1, Inage-ku, Chiba 263-8555, Japan
- Nagoya University Institute for Advanced Research, Advanced Analytical and Diagnostic Imaging Center (AADIC)/Medical Engineering Unit (MEU), B3 Unit, Nagoya University, Tsurumai-cho 65, Showa-ku, Nagoya 466-8550, Japan
- Development of Quantum-Nano Cancer Photoimmunotherapy for Clinical Application of Refractory Cancer, Nagoya University, Tsurumai 65, Showa-ku, Nagoya 466-8550, Japan
| | - Yoshinobu Baba
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- Department of Life Science and Technology, Tokyo Institute of Technology, Yokohama 226-8501, Japan
- Institute for Quantum Life Science, National Institutes for Quantum Science and Technology (QST), Anagawa 4-9-1, Inage-ku, Chiba 263-8555, Japan
- Nagoya University Institute for Advanced Research, Advanced Analytical and Diagnostic Imaging Center (AADIC)/Medical Engineering Unit (MEU), B3 Unit, Nagoya University, Tsurumai-cho 65, Showa-ku, Nagoya 466-8550, Japan
- Development of Quantum-Nano Cancer Photoimmunotherapy for Clinical Application of Refractory Cancer, Nagoya University, Tsurumai 65, Showa-ku, Nagoya 466-8550, Japan
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11
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Leggio L, Paternò G, Vivarelli S, Bonasera A, Pignataro B, Iraci N, Arrabito G. Label-free approaches for extracellular vesicle detection. iScience 2023; 26:108105. [PMID: 37867957 PMCID: PMC10589885 DOI: 10.1016/j.isci.2023.108105] [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] [Indexed: 10/24/2023] Open
Abstract
Extracellular vesicles (EVs) represent pivotal mediators in cell-to-cell communication. They are lipid-membranous carriers of several biomolecules, which can be produced by almost all cells. In the current Era of precision medicine, EVs gained growing attention thanks to their potential in both biomarker discovery and nanotherapeutics applications. However, current technical limitations in isolating and/or detecting EVs restrain their standard use in clinics. This review explores all the state-of-the-art analytical technologies which are currently overcoming these issues. On one end, several innovative optical-, electrical-, and spectroscopy-based detection methods represent advantageous label-free methodologies for faster EV detection. On the other end, microfluidics-based lab-on-a-chip tools support EV purification from low-concentrated samples. Altogether, these technologies will strengthen the routine application of EVs in clinics.
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Affiliation(s)
- Loredana Leggio
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Greta Paternò
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Silvia Vivarelli
- Department of Biomedical and Dental Sciences, Morphological and Functional Imaging, Section of Occupational Medicine, University of Messina, Messina, Italy
| | - Aurelio Bonasera
- Department of Physics and Chemistry - Emilio Segrè, University of Palermo, Viale delle Scienze, building 17, 90128 Palermo, Italy
| | - Bruno Pignataro
- Department of Physics and Chemistry - Emilio Segrè, University of Palermo, Viale delle Scienze, building 17, 90128 Palermo, Italy
| | - Nunzio Iraci
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Giuseppe Arrabito
- Department of Physics and Chemistry - Emilio Segrè, University of Palermo, Viale delle Scienze, building 17, 90128 Palermo, Italy
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12
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Moulahoum H, Ghorbanizamani F, Beduk T, Beduk D, Ozufuklar O, Guler Celik E, Timur S. Emerging trends in nanomaterial design for the development of point-of-care platforms and practical applications. J Pharm Biomed Anal 2023; 235:115623. [PMID: 37542827 DOI: 10.1016/j.jpba.2023.115623] [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: 06/04/2023] [Revised: 07/25/2023] [Accepted: 07/31/2023] [Indexed: 08/07/2023]
Abstract
Nanomaterials and nanotechnology offer promising opportunities in point-of-care (POC) diagnostics and therapeutics due to their unique physical and chemical properties. POC platforms aim to provide rapid and portable diagnostic and therapeutic capabilities at the site of patient care, offering cost-effective solutions. Incorporating nanomaterials with distinct optical, electrical, and magnetic properties can revolutionize the POC industry, significantly enhancing the effectiveness and efficiency of diagnostic and theragnostic devices. By leveraging nanoparticles and nanofibers in POC devices, nanomaterials have the potential to improve the accuracy and speed of diagnostic tests, making them more practical for POC settings. Technological advancements, such as smartphone integration, imagery instruments, and attachments, complement and expand the application scope of POCs, reducing invasiveness by enabling analysis of various matrices like saliva and breath. These integrated testing platforms facilitate procedures without compromising diagnosis quality. This review provides a summary of recent trends in POC technologies utilizing nanomaterials and nanotechnologies for analyzing disease biomarkers. It highlights advances in device development, nanomaterial design, and their applications in POC. Additionally, complementary tools used in POC and nanomaterials are discussed, followed by critical analysis of challenges and future directions for these technologies.
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Affiliation(s)
- Hichem Moulahoum
- Biochemistry Department, Faculty of Science, Ege University, 35100 Bornova, Izmir, Turkey
| | - Faezeh Ghorbanizamani
- Biochemistry Department, Faculty of Science, Ege University, 35100 Bornova, Izmir, Turkey
| | - Tutku Beduk
- Silicon Austria Labs GmbH: Sensor Systems, Europastrasse 12, Villach 9524, Austria
| | - Duygu Beduk
- Central Research Testing and Analysis Laboratory Research and Application Center, Ege University, 35100 Bornova, Izmir, Turkey
| | - Ozge Ozufuklar
- Department of Biotechnology, Institute of Natural Sciences, Ege University, Izmir 35100, Turkey
| | - Emine Guler Celik
- Bioengineering Department, Faculty of Engineering, 35100 Bornova, Izmir, Turkey
| | - Suna Timur
- Biochemistry Department, Faculty of Science, Ege University, 35100 Bornova, Izmir, Turkey; Central Research Testing and Analysis Laboratory Research and Application Center, Ege University, 35100 Bornova, Izmir, Turkey.
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13
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Liu CW, Tsutsui H. Sample-to-answer sensing technologies for nucleic acid preparation and detection in the field. SLAS Technol 2023; 28:302-323. [PMID: 37302751 DOI: 10.1016/j.slast.2023.06.002] [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: 03/23/2023] [Revised: 05/16/2023] [Accepted: 06/06/2023] [Indexed: 06/13/2023]
Abstract
Efficient sample preparation and accurate disease diagnosis under field conditions are of great importance for the early intervention of diseases in humans, animals, and plants. However, in-field preparation of high-quality nucleic acids from various specimens for downstream analyses, such as amplification and sequencing, is challenging. Thus, developing and adapting sample lysis and nucleic acid extraction protocols suitable for portable formats have drawn significant attention. Similarly, various nucleic acid amplification techniques and detection methods have also been explored. Combining these functions in an integrated platform has resulted in emergent sample-to-answer sensing systems that allow effective disease detection and analyses outside a laboratory. Such devices have a vast potential to improve healthcare in resource-limited settings, low-cost and distributed surveillance of diseases in food and agriculture industries, environmental monitoring, and defense against biological warfare and terrorism. This paper reviews recent advances in portable sample preparation technologies and facile detection methods that have been / or could be adopted into novel sample-to-answer devices. In addition, recent developments and challenges of commercial kits and devices targeting on-site diagnosis of various plant diseases are discussed.
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Affiliation(s)
- Chia-Wei Liu
- Department of Mechanical Engineering, University of California, Riverside, CA 92521, USA
| | - Hideaki Tsutsui
- Department of Mechanical Engineering, University of California, Riverside, CA 92521, USA; Department of Bioengineering, University of California, Riverside, CA 92521, USA.
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14
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Shin HS, Park J, Lee SY, Yun HG, Kim B, Kim J, Han S, Cho D, Doh J, Choi S. Integrative Magneto-Microfluidic Separation of Immune Cells Facilitates Clinical Functional Assays. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302809. [PMID: 37365959 DOI: 10.1002/smll.202302809] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 06/05/2023] [Indexed: 06/28/2023]
Abstract
Accurately analyzing the functional activities of natural killer (NK) cells in clinical diagnosis remains challenging due to their coupling with other immune effectors. To address this, an integrated immune cell separator is required, which necessitates a streamlined sample preparation workflow including immunological cell isolation, removal of excess red blood cells (RBCs), and buffer exchange for downstream analysis. Here, a self-powered integrated magneto-microfluidic cell separation (SMS) chip is presented, which outputs high-purity target immune cells by simply inputting whole blood. The SMS chip intensifies the magnetic field gradient using an iron sphere-filled inlet reservoir for high-performance immuno-magnetic cell selection and separates target cells size-selectively using a microfluidic lattice for RBC removal and buffer exchange. In addition, the chip incorporates self-powered microfluidic pumping through a degassed polydimethylsiloxane chip, enabling the rapid isolation of NK cells at the place of blood collection within 40 min. This chip is used to isolate NK cells from whole blood samples of hepatocellular cancer patients and healthy volunteers and examined their functional activities to identify potential abnormalities in NK cell function. The SMS chip is simple to use, rapid to sort, and requires small blood volumes, thus facilitating the use of immune cell subtypes for cell-based diagnosis.
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Affiliation(s)
- Hee Sik Shin
- Department of Electrical Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Jeehun Park
- Soft Foundry Institute, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Seung Yeop Lee
- Department of Biomedical Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Hyo Geun Yun
- Department of Electrical Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Byeongyeon Kim
- Department of Electrical Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Jinho Kim
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, 25-2, Seonggyungwan-ro, Jongno-gu, Seoul, 03063, Republic of Korea
| | - Sangbin Han
- Department of Anesthesiology and Pain Medicine Samsung Medical Center, Sungkyunkwan University School of Medicine, 81, Irwon-Ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Duck Cho
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, 25-2, Seonggyungwan-ro, Jongno-gu, Seoul, 03063, Republic of Korea
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81, Irwon-Ro, Gangnam-gu, Seoul, 06351, Republic of Korea
- Cell and Gene Therapy Institute (CGTI), Samsung Medical Center, 81, Irwon-Ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Junsang Doh
- Soft Foundry Institute, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
- Department of Materials Science and Engineering, Institute of Engineering Research, BioMAX, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Sungyoung Choi
- Department of Electrical Engineering, Hanyang University, Seoul, 04763, Republic of Korea
- Department of Biomedical Engineering, Hanyang University, Seoul, 04763, Republic of Korea
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15
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Wu CY, Su YT, Su CK. 4D-printed needle panel meters coupled with enzymatic derivatization for reading urea and glucose concentrations in biological samples. Biosens Bioelectron 2023; 237:115500. [PMID: 37390641 DOI: 10.1016/j.bios.2023.115500] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/14/2023] [Accepted: 06/24/2023] [Indexed: 07/02/2023]
Abstract
On-site analytical techniques continue being developed with advances in modern technology. To demonstrate the applicability of four-dimensional printing (4DP) technologies in the direct fabrication of stimuli-responsive analytical devices for on-site determination of urea and glucose, we used digital light processing three-dimensional printing (3DP) and 2-carboxyethyl acrylate (CEA)-incorporated photocurable resins to fabricate all-in-one needle panel meters. When adding a sample having a value of pH above the pKa of CEA (ca. 4.6-5.0) into the fabricated needle panel meter, the [H+]-responsive layer of the needle, printed using the CEA-incorporated photocurable resins, swelled as a result of electrostatic repulsion among the dissociated carboxyl groups of the copolymer, leading to [H+]-dependent bending of the needle. When coupled with a derivatization reaction (urease-mediated hydrolysis of urea to decrease [H+]; glucose oxidase-mediated oxidization of glucose to increase [H+]), the bending of the needle allowed reliable quantification of urea or glucose when referencing pre-calibrated concentration scales. After method optimization, the method's detection limits for urea and glucose were 4.9 and 7.0 μM, respectively, within a working concentration range from 0.1 to 10 mM. We verified the reliability of this analytical method by determining the concentrations of urea and glucose in samples of human urine, fetal bovine serum, and rat plasma with spike analyses and comparing the results with those obtained using commercial assay kits. Our results confirm that 4DP technologies can allow the direct fabrication of stimuli-responsive devices for quantitative chemical analysis, and that they can advance the development and applicability of 3DP-enabling analytical methods.
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Affiliation(s)
- Chun-Yi Wu
- Department of Chemistry, National Chung Hsing University, Taichung City, 402, Taiwan, ROC
| | - Yi-Ting Su
- Department of Chemistry, National Chung Hsing University, Taichung City, 402, Taiwan, ROC
| | - Cheng-Kuan Su
- Department of Chemistry, National Chung Hsing University, Taichung City, 402, Taiwan, ROC.
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16
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Matthews CJ, Patrick WM. An enzyme-centric approach for constructing an amperometric l-malate biosensor with a long and programmable linear range. Protein Sci 2023; 32:e4743. [PMID: 37515423 PMCID: PMC10451018 DOI: 10.1002/pro.4743] [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: 03/10/2023] [Revised: 07/22/2023] [Accepted: 07/26/2023] [Indexed: 07/30/2023]
Abstract
l-Malate is a key flavor enhancer and acidulant in the food and beverage industry, particularly winemaking. Enzyme-based amperometric biosensors offer convenience for monitoring its concentration. However, only a small number of off-the-shelf malate-oxidizing enzymes have been used in previous devices. These typically have linear ranges poorly suited for the l-malate concentrations found in fruit processing and winemaking, making it necessary to use precisely diluted samples. Here, we describe a pipeline of database-mining, gene synthesis, recombinant expression, and spectrophotometric assays to characterize previously untested enzymes for their suitability in biosensors. The pipeline yielded a bespoke biocatalyst-the Ascaris suum malic enzyme carrying mutation R181Q [AsME(R181Q)]. Our first prototype with AsME(R181Q) had an ultra-wide linear range of 50-200 mM l-malate, corresponding to concentrations found in undiluted fruit juices (including grape). Changing the dication from Mg2+ to Mn2+ increased sensitivity five-fold and adding citrate (100 mM) increased it another six-fold, albeit decreasing the linear range to 1-10 mM. To our knowledge, this is the first time an l-malate biosensor with a tuneable combination of sensitivity and linear range has been described. The sensor response was also tested in the presence of various molecules abundant in juices and wines, with ascorbate shown to be a potent interferent. Interference was mitigated by the addition of ascorbate oxidase, allowing for differential measurements on an undiluted, untreated wine sample that corresponded well with commercial l-malate testing kits. Overall, this work demonstrates the power of an enzyme-centric approach for designing electrochemical biosensors with improved operational parameters and novel functionality.
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Affiliation(s)
- Christopher J. Matthews
- Centre for Biodiscovery, School of Biological SciencesVictoria University of WellingtonWellingtonNew Zealand
| | - Wayne M. Patrick
- Centre for Biodiscovery, School of Biological SciencesVictoria University of WellingtonWellingtonNew Zealand
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17
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Politza AJ, Liu T, Guan W. Programmable magnetic robot (ProMagBot) for automated nucleic acid extraction at the point of need. LAB ON A CHIP 2023; 23:3882-3892. [PMID: 37551930 PMCID: PMC11218199 DOI: 10.1039/d3lc00545c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
Upstream sample preparation remains the bottleneck for point-of-need nucleic acid testing due to its complexity and time-consuming nature. Sample preparation involves extracting, purifying, and concentrating nucleic acids from various matrices. These processes are critical for ensuring the accuracy and sensitivity of downstream nucleic acid amplification and detection. However, current sample preparation methods are often laboratory-based, requiring specialized equipment, trained personnel, and several hours of processing time. As a result, sample preparation often limits the speed, portability, and cost-effectiveness of point-of-need nucleic acid testing. A universal, field-deployable sample preparation device is highly desirable for this critical need and unmet challenge. Here we reported a handheld, battery-powered, reconfigurable, and field-deployable nucleic acid sample preparation device. A programmable electromagnetic actuator was developed to drive a magnetic robot (ProMagBot) in X/Y 2D space, such that various magnetic bead-based sample preparations can be readily translated from the laboratory to point-of-need settings. The control of the electromagnetic actuator requires only a 3-phase unipolar voltage in X and Y directions, and therefore, the motion space is highly scalable. We validated the ProMagBot device with a model application by extracting HIV viral RNAs from plasma samples using two widely used magnetic bead kits: ChargeSwitch and MagMAX beads. In both cases, the ProMagBot could successfully extract viral RNAs from 50 μL plasma samples containing as low as 102 copies of viral RNAs in 20 minutes. Our results demonstrated the ability of ProMagBot to prepare samples from complex mediums at the point of need. We believe such a device would enable rapid and robust sample preparation in various settings, including resource-limited or remote environments, and accelerate the development of next-generation point-of-need nucleic acid testing.
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Affiliation(s)
- Anthony J Politza
- Department of Biomedical Engineering, Pennsylvania State University, University Park 16802, USA.
| | - Tianyi Liu
- Department of Electrical Engineering, Pennsylvania State University, University Park 16802, USA
| | - Weihua Guan
- Department of Biomedical Engineering, Pennsylvania State University, University Park 16802, USA.
- Department of Electrical Engineering, Pennsylvania State University, University Park 16802, USA
- School of Electrical Engineering and Computer Science, Pennsylvania State University, University Park 16802, USA
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18
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Chen M, Qiu Q, Qileng A, Shen H, Liu W, Liu Y. Efficient Nanozyme-Triggered Pressure Sensor for Point-of-Care Immunoassay: Visual Sensing and Time Readout Device. Anal Chem 2023; 95:11383-11390. [PMID: 37458998 DOI: 10.1021/acs.analchem.3c01547] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Point-of-care testing (POCT), with its portability and high sensitivity, is an analytical device for rapid on-site sensing and detection. In this study, a POCT device was designed for the portable detection of illegal additives by integrating a coil device that can visually sense color distance and a two-electrode electrochemical system. Real-time monitoring of pressure changes was achieved by driving CeO2@Pt/Au nanoparticle (NP)-labeled antibodies into a competitive immunoreaction, in which CeO2 and Pt/Au synergistically catalyzed the production of large amounts of O2 from H2O2, leading to a significant increase in gas within the closed chamber. Attractively, the coil device converted the pressure stimulus into visually readable change in distance for semi-quantitative detection of the target substance, while the electrical signal output caused by the changes of the solution around the electrodes achieved accurate and reliable quantification of the target. In addition, the proposed dual-mode pressure immunoassay device has acceptable selectivity, stability, and reproducibility. Herein, this portable device, which enables target concentration readings by converting pressure into multiple signals, provides an effective way to visualize POCT assays in resource-limited areas.
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Affiliation(s)
- Mengting Chen
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Qiqian Qiu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Aori Qileng
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Haoran Shen
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Weipeng Liu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Yingju Liu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
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Pillai S, Kwan JC, Yaziji F, Yu H, Tran SD. Mapping the Potential of Microfluidics in Early Diagnosis and Personalized Treatment of Head and Neck Cancers. Cancers (Basel) 2023; 15:3894. [PMID: 37568710 PMCID: PMC10417175 DOI: 10.3390/cancers15153894] [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: 06/29/2023] [Revised: 07/24/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023] Open
Abstract
Head and neck cancers (HNCs) account for ~4% of all cancers in North America and encompass cancers affecting the oral cavity, pharynx, larynx, sinuses, nasal cavity, and salivary glands. The anatomical complexity of the head and neck region, characterized by highly perfused and innervated structures, presents challenges in the early diagnosis and treatment of these cancers. The utilization of sub-microliter volumes and the unique phenomenon associated with microscale fluid dynamics have facilitated the development of microfluidic platforms for studying complex biological systems. The advent of on-chip microfluidics has significantly impacted the diagnosis and treatment strategies of HNC. Sensor-based microfluidics and point-of-care devices have improved the detection and monitoring of cancer biomarkers using biological specimens like saliva, urine, blood, and serum. Additionally, tumor-on-a-chip platforms have allowed the creation of patient-specific cancer models on a chip, enabling the development of personalized treatments through high-throughput screening of drugs. In this review, we first focus on how microfluidics enable the development of an enhanced, functional drug screening process for targeted treatment in HNCs. We then discuss current advances in microfluidic platforms for biomarker sensing and early detection, followed by on-chip modeling of HNC to evaluate treatment response. Finally, we address the practical challenges that hinder the clinical translation of these microfluidic advances.
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Affiliation(s)
| | | | | | | | - Simon D. Tran
- McGill Craniofacial Tissue Engineering and Stem Cell Laboratory, Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC H3A 0C7, Canada; (S.P.); (J.C.K.); (F.Y.); (H.Y.)
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20
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Xia L, Zhang M, Hu Y, Mei W, Long Y, Wang H, Zou L, Wang Q, Yang X, Wang K. "One suction and one extrusion" mode-based wash-free platform for determination of breast cancer cell-derived exosomes. Mikrochim Acta 2023; 190:322. [PMID: 37491600 DOI: 10.1007/s00604-023-05898-6] [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: 04/05/2023] [Accepted: 07/03/2023] [Indexed: 07/27/2023]
Abstract
A simple and wash-free POCT platform based on microcapillary was developed, using breast cancer cell-derived exosomes as a model. This method adopted the "one suction and one extrusion" mode. The hybridized complex of epithelial cell adhesion molecule (EpCAM) aptamer and complementary DNA-horseradish peroxidase conjugate (CDNA-HRP) was pre-modified on the microcapillary's inner surface. "One suction" meant inhaling the sample into the functionalized microcapillary. The exosomes could specifically bind with the EpCAM aptamer on the microcapillary's inner wall, and then the CDNA-HRP complex was released. "One extrusion" referred to squeezing the shedding CDNA-HRP into the 3,3',5,5'-tetramethylbenzidine (TMB)/H2O2 solution, and then the enzyme-catalyzed reaction would occur to make the solution yellow using sulfuric acid as the terminator. Therefore, exosome detection could be realized. The limit of detection was 2.69 × 104 particles mL-1 and the signal value had excellent linearity in the concentration range from 2.75 × 104 to 2.75 × 108 particles⋅mL-1 exosomes. In addition, the wash-free POCT platform also displayed a favorable reproducibility (RSD = 2.9%) in exosome detection. This method could effectively differentiate breast cancer patients from healthy donors. This work provided an easy-to-operate method for detecting cancer-derived exosomes without complex cleaning steps, which is expected to be applied to breast cancer screening.
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Affiliation(s)
- Ling Xia
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, People's Republic of China
| | - Mingwan Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, People's Republic of China
| | - Yingyun Hu
- Department of Cancer Prevention and Control, Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Wenjing Mei
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, People's Republic of China
| | - Ying Long
- Translational Medicine Centre, Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Hongqiang Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, People's Republic of China
| | - Liyuan Zou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, People's Republic of China
| | - Qing Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, People's Republic of China.
| | - Xiaohai Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, People's Republic of China.
| | - Kemin Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, People's Republic of China
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de Olazarra AS, Wang SX. Advances in point-of-care genetic testing for personalized medicine applications. BIOMICROFLUIDICS 2023; 17:031501. [PMID: 37159750 PMCID: PMC10163839 DOI: 10.1063/5.0143311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 04/12/2023] [Indexed: 05/11/2023]
Abstract
Breakthroughs within the fields of genomics and bioinformatics have enabled the identification of numerous genetic biomarkers that reflect an individual's disease susceptibility, disease progression, and therapy responsiveness. The personalized medicine paradigm capitalizes on these breakthroughs by utilizing an individual's genetic profile to guide treatment selection, dosing, and preventative care. However, integration of personalized medicine into routine clinical practice has been limited-in part-by a dearth of widely deployable, timely, and cost-effective genetic analysis tools. Fortunately, the last several decades have been characterized by tremendous progress with respect to the development of molecular point-of-care tests (POCTs). Advances in microfluidic technologies, accompanied by improvements and innovations in amplification methods, have opened new doors to health monitoring at the point-of-care. While many of these technologies were developed with rapid infectious disease diagnostics in mind, they are well-suited for deployment as genetic testing platforms for personalized medicine applications. In the coming years, we expect that these innovations in molecular POCT technology will play a critical role in enabling widespread adoption of personalized medicine methods. In this work, we review the current and emerging generations of point-of-care molecular testing platforms and assess their applicability toward accelerating the personalized medicine paradigm.
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Affiliation(s)
- A. S. de Olazarra
- Department of Electrical Engineering, Stanford University, Stanford, California 94305, USA
| | - S. X. Wang
- Author to whom correspondence should be addressed:
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22
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Rey Gomez LM, Hirani R, Care A, Inglis DW, Wang Y. Emerging Microfluidic Devices for Sample Preparation of Undiluted Whole Blood to Enable the Detection of Biomarkers. ACS Sens 2023; 8:1404-1421. [PMID: 37011238 DOI: 10.1021/acssensors.2c02696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
Blood testing allows for diagnosis and monitoring of numerous conditions and illnesses; it forms an essential pillar of the health industry that continues to grow in market value. Due to the complex physical and biological nature of blood, samples must be carefully collected and prepared to obtain accurate and reliable analysis results with minimal background signal. Examples of common sample preparation steps include dilutions, plasma separation, cell lysis, and nucleic acid extraction and isolation, which are time-consuming and can introduce risks of sample cross-contamination or pathogen exposure to laboratory staff. Moreover, the reagents and equipment needed can be costly and difficult to obtain in point-of-care or resource-limited settings. Microfluidic devices can perform sample preparation steps in a simpler, faster, and more affordable manner. Devices can be carried to areas that are difficult to access or that do not have the resources necessary. Although many microfluidic devices have been developed in the last 5 years, few were designed for the use of undiluted whole blood as a starting point, which eliminates the need for blood dilution and minimizes blood sample preparation. This review will first provide a short summary on blood properties and blood samples typically used for analysis, before delving into innovative advances in microfluidic devices over the last 5 years that address the hurdles of blood sample preparation. The devices will be categorized by application and the type of blood sample used. The final section focuses on devices for the detection of intracellular nucleic acids, because these require more extensive sample preparation steps, and the challenges involved in adapting this technology and potential improvements are discussed.
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Affiliation(s)
| | - Rena Hirani
- Australian Red Cross Lifeblood, Sydney, New South Wales 2015, Australia
| | - Andrew Care
- School of Life Sciences, University of Technology Sydney, Ultimo, New South Wales 2007, Australia
| | - David W Inglis
- School of Engineering, Faculty of Science and Engineering and △School of Natural Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
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23
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Lin B, Geng Z, Chen Y, Zeng W, Li B, Zhang Y, Liu P. A fully integrated nucleic acid analysis system for multiplex detection of genetic polymorphisms related to folic acid metabolism. LAB ON A CHIP 2023; 23:1794-1803. [PMID: 36806417 DOI: 10.1039/d2lc01169g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
A sufficient intake of folic acid is essential during pregnancy, but several genetic polymorphisms reduce its absorption, threaten the lives of pregnant women and cause congenital disabilities in newborns. Traditional laboratory detection of genetic variants related to folic acid metabolism is time-consuming and labor-intensive. Microfluidics-based molecular diagnosis integrates sample pre-processing and nucleic acid amplification on-chip to achieve rapid, sensitive, high-throughput, and automated detection. Here, we developed a fully integrated microfluidic system for the detection of genetic polymorphisms related to folic acid metabolism in a "sample in-answer out" style. The system consists of nucleic acid extraction and amplification modules. During nucleic acid extraction, blood cells are lysed, and DNA is captured and eluted through a silica-gel membrane. After that, multiple gene loci are detected using loop-mediated isothermal amplification (LAMP) and the color of the reaction chamber indicates whether genetic mutations are present. The experimental results demonstrate that the system can accurately detect gene polymorphisms associated with folic acid metabolism in blood samples with high sensitivity and no cross-contamination between chambers. The blood samples of five patients were tested for mutant alleles on this system, and the test results were consistent with qPCR and DNA sequencing observations. The operation is fully automated, and the detection is completed in approximately 70 minutes. The proposed system has great potential in prenatal diagnosis and other types of nucleic acid detection.
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Affiliation(s)
- Baobao Lin
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Haidian District, Beijing, 100084, China.
| | - Zhi Geng
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Haidian District, Beijing, 100084, China.
| | - Yanjing Chen
- Sports & Medicine Integration Research Center (SMIRC), Capital University of Physical Education and Sports, Haidian District, Beijing, 100191, China.
| | - Wu Zeng
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Haidian District, Beijing, 100084, China.
| | - Bao Li
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Haidian District, Beijing, 100084, China.
| | - Yan Zhang
- Sports & Medicine Integration Research Center (SMIRC), Capital University of Physical Education and Sports, Haidian District, Beijing, 100191, China.
| | - Peng Liu
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Haidian District, Beijing, 100084, China.
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24
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Tarim EA, Anil Inevi M, Ozkan I, Kecili S, Bilgi E, Baslar MS, Ozcivici E, Oksel Karakus C, Tekin HC. Microfluidic-based technologies for diagnosis, prevention, and treatment of COVID-19: recent advances and future directions. Biomed Microdevices 2023; 25:10. [PMID: 36913137 PMCID: PMC10009869 DOI: 10.1007/s10544-023-00649-z] [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] [Accepted: 02/21/2023] [Indexed: 03/14/2023]
Abstract
The COVID-19 pandemic has posed significant challenges to existing healthcare systems around the world. The urgent need for the development of diagnostic and therapeutic strategies for COVID-19 has boomed the demand for new technologies that can improve current healthcare approaches, moving towards more advanced, digitalized, personalized, and patient-oriented systems. Microfluidic-based technologies involve the miniaturization of large-scale devices and laboratory-based procedures, enabling complex chemical and biological operations that are conventionally performed at the macro-scale to be carried out on the microscale or less. The advantages microfluidic systems offer such as rapid, low-cost, accurate, and on-site solutions make these tools extremely useful and effective in the fight against COVID-19. In particular, microfluidic-assisted systems are of great interest in different COVID-19-related domains, varying from direct and indirect detection of COVID-19 infections to drug and vaccine discovery and their targeted delivery. Here, we review recent advances in the use of microfluidic platforms to diagnose, treat or prevent COVID-19. We start by summarizing recent microfluidic-based diagnostic solutions applicable to COVID-19. We then highlight the key roles microfluidics play in developing COVID-19 vaccines and testing how vaccine candidates perform, with a focus on RNA-delivery technologies and nano-carriers. Next, microfluidic-based efforts devoted to assessing the efficacy of potential COVID-19 drugs, either repurposed or new, and their targeted delivery to infected sites are summarized. We conclude by providing future perspectives and research directions that are critical to effectively prevent or respond to future pandemics.
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Affiliation(s)
- E Alperay Tarim
- Department of Bioengineering, Izmir Institute of Technology, Izmir, Turkey
| | - Muge Anil Inevi
- Department of Bioengineering, Izmir Institute of Technology, Izmir, Turkey
| | - Ilayda Ozkan
- Department of Bioengineering, Izmir Institute of Technology, Izmir, Turkey
| | - Seren Kecili
- Department of Bioengineering, Izmir Institute of Technology, Izmir, Turkey
| | - Eyup Bilgi
- Department of Bioengineering, Izmir Institute of Technology, Izmir, Turkey
| | - M Semih Baslar
- Department of Bioengineering, Izmir Institute of Technology, Izmir, Turkey
| | - Engin Ozcivici
- Department of Bioengineering, Izmir Institute of Technology, Izmir, Turkey
| | | | - H Cumhur Tekin
- Department of Bioengineering, Izmir Institute of Technology, Izmir, Turkey.
- METU MEMS Center, Ankara, Turkey.
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25
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Shi J, Zhang Y, Yang M. Recent development of microfluidics-based platforms for respiratory virus detection. BIOMICROFLUIDICS 2023; 17:024104. [PMID: 37035101 PMCID: PMC10076069 DOI: 10.1063/5.0135778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 02/27/2023] [Indexed: 06/19/2023]
Abstract
With the global outbreak of SARS-CoV-2, the inadequacies of current detection technology for respiratory viruses have been recognized. Rapid, portable, accurate, and sensitive assays are needed to expedite diagnosis and early intervention. Conventional methods for detection of respiratory viruses include cell culture-based assays, serological tests, nucleic acid detection (e.g., RT-PCR), and direct immunoassays. However, these traditional methods are often time-consuming, labor-intensive, and require laboratory facilities, which cannot meet the testing needs, especially during pandemics of respiratory diseases, such as COVID-19. Microfluidics-based techniques can overcome these demerits and provide simple, rapid, accurate, and cost-effective analysis of intact virus, viral antigen/antibody, and viral nucleic acids. This review aims to summarize the recent development of microfluidics-based techniques for detection of respiratory viruses. Recent advances in different types of microfluidic devices for respiratory virus diagnostics are highlighted, including paper-based microfluidics, continuous-flow microfluidics, and droplet-based microfluidics. Finally, the future development of microfluidic technologies for respiratory virus diagnostics is discussed.
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Affiliation(s)
- Jingyu Shi
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon 999077, Hong Kong SAR, People's Republic of China
| | - Yu Zhang
- Department of Mechanical and Automotive Engineering, Royal Melbourne Institute of Technology, Melbourne, VIC 3000, Australia
| | - Mo Yang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon 999077, Hong Kong SAR, People's Republic of China
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26
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Parolo C, Idili A, Heikenfeld J, Plaxco KW. Conformational-switch biosensors as novel tools to support continuous, real-time molecular monitoring in lab-on-a-chip devices. LAB ON A CHIP 2023; 23:1339-1348. [PMID: 36655710 PMCID: PMC10799767 DOI: 10.1039/d2lc00716a] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Recent years have seen continued expansion of the functionality of lab on a chip (LOC) devices. Indeed LOCs now provide scientists and developers with useful and versatile platforms across a myriad of chemical and biological applications. The field still fails, however, to integrate an often important element of bench-top analytics: real-time molecular measurements that can be used to "guide" a chemical response. Here we describe the analytical techniques that could provide LOCs with such real-time molecular monitoring capabilities. It appears to us that, among the approaches that are general (i.e., that are independent of the reactive or optical properties of their targets), sensing strategies relying on binding-induced conformational change of bioreceptors are most likely to succeed in such applications.
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Affiliation(s)
- Claudio Parolo
- Barcelona Institute for Global Health, Hospital Clínic Universitat de Barcelona, 08036, Barcelona, Spain
| | - Andrea Idili
- Department of Chemical Science and Technologies, University of Rome, Tor Vergata, 00133 Rome, Italy
| | - Jason Heikenfeld
- Novel Devices Laboratory, University of Cincinnati, Cincinnati, Ohio, USA
| | - Kevin W Plaxco
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, California, USA.
- Interdepartmental Program in Biomolecular Science and Engineering, University of California Santa Barbara, Santa Barbara, California, USA
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27
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Microfluidic-based blood immunoassays. J Pharm Biomed Anal 2023; 228:115313. [PMID: 36868029 DOI: 10.1016/j.jpba.2023.115313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/09/2023] [Accepted: 02/22/2023] [Indexed: 02/26/2023]
Abstract
Microfluidics enables the integration of whole protocols performed in a laboratory, including sample loading, reaction, extraction, and measurement steps on a single system, which offers significant advantages thanks to small-scale operation combined with precise fluid control. These include providing efficient transportation mechanisms and immobilization, reduced sample and reagent volumes, fast analysis and response times, lower power requirements, lower cost and disposability, improved portability and sensitivity, and greater integration and automation capability. Immunoassay is a specific bioanalytical method based on the interaction of antigens and antibodies, which is utilized to detect bacteria, viruses, proteins, and small molecules in several areas such as biopharmaceutical analysis, environmental analysis, food safety, and clinical diagnostics. Because of the advantages of both techniques, the combination of immunoassays and microfluidic technology is considered one of the most potential biosensor systems for blood samples. This review presents the current progress and important developments in microfluidic-based blood immunoassays. After providing several basic information about blood analysis, immunoassays, and microfluidics, the review points out in-depth information about microfluidic platforms, detection techniques, and commercial microfluidic blood immunoassay platforms. In conclusion, some thoughts and future perspectives are provided.
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28
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Kuo SH, Peraro A, Lin HP, Chang CH, Li BR. Hand-Powered Point-of-Care: Centrifugal Microfluidic Platform for Urine Routine Examination (μCUREX). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:1897-1904. [PMID: 36696912 DOI: 10.1021/acs.langmuir.2c02923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Urinalysis is one of the simplest and most common medical tests in modern cities. With the assistance of professional technicians and equipment, people in metropolitan areas can effortlessly acquire information about their physiological conditions from traditional clinical laboratories. However, the threshold, including precise benchtop equipment and well-trained personnel, still remains a considerable dilemma for residents in healthcare-poor areas. Hence, it is a crucial and urgent topic to develop a smart and affordable widget to address this challenge. To improve the healthcare rights of residents, we proposed a disposable centrifugal microfluidic urine routine examination platform (named μCUREX) actuated with a modified hand-powered fan. Two parts of urinalysis (sediment test and chemical strip test) were integrated into the μCUREX disc. The influence on sedimentation by variant hand-powered manipulation was simulated using COMSOL. As a result, more than 70% of the sediment can be collected. Moreover, the color change of chemical strip papers (indicators for glucose, pH, protein, and occult blood) was recorded with a 3D-printed studio and analyzed after reaction with chemical-spiked and pH-adjusted artificial and human urine specimens. The whole process can be completed within 10 min, with only 200 μL of urine needed. In conclusion, we successfully constructed an ultra-low-cost point-of-care platform for urinalysis in extremely resource-poor settings. The handy size, high affordability, and user-friendliness of the μCUREX disc provide strong potential and feasibility in solving problems in resource-poor settings. Furthermore, we highly expect the μCUREX platform to improve the level of healthcare in resource-limited areas.
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Affiliation(s)
- Shao-Hsuan Kuo
- Institute of Biomedical Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu300, Taiwan
| | - Alberto Peraro
- Institute of Biomedical Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu300, Taiwan
- Department of Biomedical Engineering, University of Padua, Padova35122, Italy
| | - Hsiu-Pen Lin
- Institute of Biomedical Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu300, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu300, Taiwan
| | - Chun-Hao Chang
- Institute of Biomedical Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu300, Taiwan
- Department of Electrical and Computer Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu300, Taiwan
| | - Bor-Ran Li
- Institute of Biomedical Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu300, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu300, Taiwan
- Department of Electrical and Computer Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu300, Taiwan
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29
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Zolti O, Suganthan B, Ramasamy RP. Lab-on-a-Chip Electrochemical Biosensors for Foodborne Pathogen Detection: A Review of Common Standards and Recent Progress. BIOSENSORS 2023; 13:bios13020215. [PMID: 36831981 PMCID: PMC9954316 DOI: 10.3390/bios13020215] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/22/2023] [Accepted: 01/30/2023] [Indexed: 05/27/2023]
Abstract
Foodborne pathogens are an important diagnostic target for the food, beverage, and health care industries due to their prevalence and the adverse effects they can cause to public health, food safety, and the economy. The standards that determine whether a given type of food is fit for consumption are set by governments and must be taken into account when designing a new diagnostic tool such as a biosensor platform. In order to meet these stringent detection limits, cost, and reliability standards, recent research has been focused on developing lab-on-a-chip-based approaches for detection devices that use microfluidic channels and platforms. The microfluidics-based devices are designed, developed, and used in different ways to achieve the established common standards for food pathogen testing that enable high throughput, rapid detection, low sample volume, and minimal pretreatment procedures. Combining microfluidic approaches with electrochemical biosensing could offer affordable, portable, and easy to use devices for food pathogen diagnostics. This review presents an analysis of the established common standards and the recent progress made in electrochemical sensors toward the development of future lab-on-a-chip devices that will aid 'collection-to-detection' using a single method and platform.
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30
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Flexible Capillary Microfluidic Devices Based on Surface-Energy Modified Polydimethylsiloxane and Polymethylmethacrylate with Room-Temperature Chemical Bonding. BIOCHIP JOURNAL 2023. [DOI: 10.1007/s13206-023-00096-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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31
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Simone G. Trends of Biosensing: Plasmonics through Miniaturization and Quantum Sensing. Crit Rev Anal Chem 2023:1-26. [PMID: 36601882 DOI: 10.1080/10408347.2022.2161813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Despite being extremely old concepts, plasmonics and surface plasmon resonance-based biosensors have been increasingly popular in the recent two decades due to the growing interest in nanooptics and are now of relevant significance in regards to applications associated with human health. Plasmonics integration into point-of-care devices for health surveillance has enabled significant levels of sensitivity and limit of detection to be achieved and has encouraged the expansion of the fields of study and market niches devoted to the creation of quick and incredibly sensitive label-free detection. The trend reflects in wearable plasmonic sensor development as well as point-of-care applications for widespread applications, demonstrating the potential impact of the new generation of plasmonic biosensors on human well-being through the concepts of personalized medicine and global health. In this context, the aim here is to discuss the potential, limitations, and opportunities for improvement that have arisen as a result of the integration of plasmonics into microsystems and lab-on-chip over the past five years. Recent applications of plasmonic biosensors in microsystems and sensor performance are analyzed. The final analysis focuses on the integration of microfluidics and lab-on-a-chip with quantum plasmonics technology prospecting it as a promising solution for chemical and biological sensing. Here it is underlined how the research in the field of quantum plasmonic sensing for biological applications has flourished over the past decade with the aim to overcome the limits given by quantum fluctuations and noise. The significant advances in nanophotonics, plasmonics and microsystems used to create increasingly effective biosensors would continue to benefit this field if harnessed properly.
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Affiliation(s)
- Giuseppina Simone
- Chemical Engineering, University of Naples 'Federico II', Naples, Italy
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32
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Microfluidic chip and isothermal amplification technologies for the detection of pathogenic nucleic acid. J Biol Eng 2022; 16:33. [PMID: 36457138 PMCID: PMC9714395 DOI: 10.1186/s13036-022-00312-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 11/17/2022] [Indexed: 12/05/2022] Open
Abstract
The frequency of outbreaks of newly emerging infectious diseases has increased in recent years. The coronavirus disease 2019 (COVID-19) outbreak in late 2019 has caused a global pandemic, seriously endangering human health and social stability. Rapid detection of infectious disease pathogens is a key prerequisite for the early screening of cases and the reduction in transmission risk. Fluorescence quantitative polymerase chain reaction (qPCR) is currently the most commonly used pathogen detection method, but this method has high requirements in terms of operating staff, instrumentation, venues, and so forth. As a result, its application in the settings such as poorly conditioned communities and grassroots has been limited, and the detection needs of the first-line field cannot be met. The development of point-of-care testing (POCT) technology is of great practical significance for preventing and controlling infectious diseases. Isothermal amplification technology has advantages such as mild reaction conditions and low instrument dependence. It has a promising prospect in the development of POCT, combined with the advantages of high integration and portability of microfluidic chip technology. This study summarized the principles of several representative isothermal amplification techniques, as well as their advantages and disadvantages. Particularly, it reviewed the research progress on microfluidic chip-based recombinase polymerase isothermal amplification technology and highlighted future prospects.
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33
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Xing G, Ai J, Wang N, Pu Q. Recent progress of smartphone-assisted microfluidic sensors for point of care testing. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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34
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Shang Y, Xing G, Liu X, Lin H, Lin JM. Fully Integrated Microfluidic Biosensor with Finger Actuation for the Ultrasensitive Detection of Escherichia coli O157:H7. Anal Chem 2022; 94:16787-16795. [DOI: 10.1021/acs.analchem.2c03686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Yuting Shang
- Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, PR China
| | - Gaowa Xing
- Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, PR China
| | - Xuejiao Liu
- Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, PR China
| | - Haifeng Lin
- Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, PR China
| | - Jin-Ming Lin
- Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, PR China
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35
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Loop-Mediated Isothermal Amplification-Based Microfluidic Platforms for the Detection of Viral Infections. Curr Infect Dis Rep 2022; 24:205-215. [PMID: 36341307 PMCID: PMC9628606 DOI: 10.1007/s11908-022-00790-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2022] [Indexed: 11/09/2022]
Abstract
Purpose of Review Easy-to-use, fast, and accurate virus detection method is essential for patient management and epidemic surveillance, especially during severe pandemics. Loop-mediated isothermal amplification (LAMP) on a microfluidic platform is suitable for detecting infectious viruses, regardless of the availability of medical resources. The purpose of this review is to introduce LAMP-based microfluidic devices for virus detection, including their detection principles, methods, and application. Recent Findings Facing the uncontrolled spread of viruses, the large-scale deployment of LAMP-based microfluidic platforms at the grassroots level can help expand the coverage of nucleic acid testing and shorten the time to obtain test reports. Microfluidic chip technology is highly integrated and miniaturized, enabling precise fluid control for effective virus detection. Performing LAMP on miniaturized systems can reduce analysis time, reagent consumption and risk of sample contamination, and improve analytical performance. Summary Compared to traditional benchtop protocols, LAMP-based microfluidic devices reduce the testing time, reagent consumption, and the risk of sample contamination. In addition to simultaneous detection of multiple target genes by special channel design, microfluidic chips can also integrate digital LAMP to achieve absolute quantification of target genes.
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36
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Khashayar P, Al-Madhagi S, Azimzadeh M, Scognamiglio V, Arduini F. New frontiers in microfluidics devices for miRNA analysis. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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37
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Zhang X, Qian Z, Jiang M, Li W, Huang Y, Men Y. Design and High-Resolution Analysis of an Efficient Periodic Split-and-Recombination Microfluidic Mixer. MICROMACHINES 2022; 13:1720. [PMID: 36296073 PMCID: PMC9607611 DOI: 10.3390/mi13101720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/06/2022] [Accepted: 10/09/2022] [Indexed: 06/16/2023]
Abstract
We developed a highly efficient passive mixing device based on a split-and-recombine (SAR) configuration. This micromixer was constructed by simply bonding two identical microfluidic periodical open-trench patterns face to face. The structure parameters of periodical units were optimized through numerical simulation to facilitate the mixing efficiency. Despite the simplicity in design and fabrication, it provided rapid mixing performance in both experiment and simulation conditions. To better illustrate the mixing mechanism, we developed a novel scheme to achieve high-resolution confocal imaging of serial channel cross-sections to accurately characterize the mixing details and performance after each SAR cycle. Using fluorescent IgG as an indicator, nearly complete mixing was achieved using only four SAR cycles in an aqueous solution within a device's length of less than 10 mm for fluids with a Péclet number up to 8.7 × 104. Trajectory analysis revealed that each SAR cycle transforms the input fluids using three synergetic effects: rotation, combination, and stretching to increase the interfaces exponentially. Furthermore, we identified that the pressure gradients in the parallel plane of the curved channel induced vertical convection, which is believed to be the driving force underlying these effects to accelerate the mixing process.
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Affiliation(s)
- Xiannian Zhang
- School of Basic Medical Sciences, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, China
| | - Zhenwei Qian
- School of Basic Medical Sciences, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, China
| | - Mengcheng Jiang
- Biomedical Pioneering Innovation Center (BIOPIC), Peking-Tsinghua Center for Life Sciences, Beijing Advanced Innovation Center for Genomics (ICG), College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Wentao Li
- Biomedical Pioneering Innovation Center (BIOPIC), Peking-Tsinghua Center for Life Sciences, Beijing Advanced Innovation Center for Genomics (ICG), College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yanyi Huang
- Biomedical Pioneering Innovation Center (BIOPIC), Peking-Tsinghua Center for Life Sciences, Beijing Advanced Innovation Center for Genomics (ICG), College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yongfan Men
- Research Center for Biomedical Optics and Molecular Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
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38
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Guo G, Wu X, Liu D, Liao L, Zhang D, Zhang Y, Mao T, He Y, Huang P, Wang W, Su L, Wang S, Liu Q, Ma X, Shi N, Guan Y. A Self-Regulated Microfluidic Device with Thermal Bubble Micropumps. MICROMACHINES 2022; 13:mi13101620. [PMID: 36295973 PMCID: PMC9612009 DOI: 10.3390/mi13101620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/26/2022] [Accepted: 09/26/2022] [Indexed: 06/12/2023]
Abstract
Currently, many microchips must rely on an external force (such as syringe pump, electro-hydrodynamic pump, and peristaltic pump, etc.) to control the solution in the microchannels, which probably adds manual operating errors, affects the accuracy of fluid manipulation, and enlarges the noise of signal. In addition, the reasonable integration of micropump and microchip remain the stumbling block for the commercialization of microfluidic technique. To solve those two problems, we designed and fabricated a thermal bubble micropump based on MEMS (micro-electro-mechanical systems) technique. Many parameters (voltage, pulse time, cycle delay time, etc.) affecting the performance of this micropump were explored in this work. The experimental results showed the flow rate of solution with the assistance of a micropump reached more than 15 μL/min in the optimal condition. Finally, a method about measuring total aflatoxin in Chinese herbs was successfully developed based on the integrated platform contained competitive immunoassay and our micropump-based microfluidics. Additionally, the limit of detection in quantifying total aflatoxin (AF) was 0.0615 pg/mL in this platform. The data indicate this combined technique of biochemical assays and micropump based microchip have huge potential in automatically, rapidly, and sensitively measuring other low concentration of biochemical samples with small volume.
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Affiliation(s)
- Gang Guo
- Department of Microelectronics, Shanghai University, Shanghai 200000, China
| | - Xuanye Wu
- Department of Microelectronics, Shanghai University, Shanghai 200000, China
- Shanghai Industrial μTechnology Research Institute, Shanghai 200000, China
| | - Demeng Liu
- Department of Microelectronics, Shanghai University, Shanghai 200000, China
- Shanghai Aure Technology limited Company, Shanghai 200000, China
| | - Lingni Liao
- Shanghai Industrial μTechnology Research Institute, Shanghai 200000, China
| | - Di Zhang
- Shanghai Industrial μTechnology Research Institute, Shanghai 200000, China
| | - Yi Zhang
- Shanghai Industrial μTechnology Research Institute, Shanghai 200000, China
| | - Tianjiao Mao
- Shanghai Industrial μTechnology Research Institute, Shanghai 200000, China
| | - Yuhan He
- Shanghai Industrial μTechnology Research Institute, Shanghai 200000, China
| | - Peng Huang
- Shanghai Industrial μTechnology Research Institute, Shanghai 200000, China
| | - Wei Wang
- Shanghai Aure Technology limited Company, Shanghai 200000, China
| | - Lin Su
- Shanghai Aure Technology limited Company, Shanghai 200000, China
| | - Shuhua Wang
- Shanghai Aure Technology limited Company, Shanghai 200000, China
| | - Qi Liu
- Shanghai Industrial μTechnology Research Institute, Shanghai 200000, China
| | - Xingfeng Ma
- Department of Microelectronics, Shanghai University, Shanghai 200000, China
| | - Nan Shi
- Shanghai Industrial μTechnology Research Institute, Shanghai 200000, China
- Institute of Translational Medicine, Shanghai University, Shanghai 200000, China
| | - Yimin Guan
- Department of Microelectronics, Shanghai University, Shanghai 200000, China
- Shanghai Industrial μTechnology Research Institute, Shanghai 200000, China
- Shanghai Aure Technology limited Company, Shanghai 200000, China
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Wang J, Yang L, Wang H, Wang L. Application of Microfluidic Chips in the Detection of Airborne Microorganisms. MICROMACHINES 2022; 13:1576. [PMID: 36295928 PMCID: PMC9611547 DOI: 10.3390/mi13101576] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 09/14/2022] [Accepted: 09/17/2022] [Indexed: 06/16/2023]
Abstract
The spread of microorganisms in the air, especially pathogenic microorganisms, seriously affects people's normal life. Therefore, the analysis and detection of airborne microorganisms is of great importance in environmental detection, disease prevention and biosafety. As an emerging technology with the advantages of integration, miniaturization and high efficiency, microfluidic chips are widely used in the detection of microorganisms in the environment, bringing development vitality to the detection of airborne microorganisms, and they have become a research highlight in the prevention and control of infectious diseases. Microfluidic chips can be used for the detection and analysis of bacteria, viruses and fungi in the air, mainly for the detection of Escherichia coli, Staphylococcus aureus, H1N1 virus, SARS-CoV-2 virus, Aspergillus niger, etc. The high sensitivity has great potential in practical detection. Here, we summarize the advances in the collection and detection of airborne microorganisms by microfluidic chips. The challenges and trends for the detection of airborne microorganisms by microfluidic chips was also discussed. These will support the role of microfluidic chips in the prevention and control of air pollution and major outbreaks.
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Affiliation(s)
- Jinpei Wang
- College of Medicine, Xi’an International University, Xi’an 710077, China
- Engineering Research Center of Personalized Anti-Aging Health Product Development and Transformation, Universities of Shaanxi Province, Xi’an 710077, China
- Applied Research Center for Life Science, Xi’an International University, Xi’an 710077, China
| | - Lixia Yang
- College of Medicine, Xi’an International University, Xi’an 710077, China
- Engineering Research Center of Personalized Anti-Aging Health Product Development and Transformation, Universities of Shaanxi Province, Xi’an 710077, China
- Applied Research Center for Life Science, Xi’an International University, Xi’an 710077, China
| | - Hanghui Wang
- College of Medicine, Xi’an International University, Xi’an 710077, China
- Xi’an International Medical Center Hospital, Xi’an 710100, China
| | - Lin Wang
- College of Medicine, Xi’an International University, Xi’an 710077, China
- Engineering Research Center of Personalized Anti-Aging Health Product Development and Transformation, Universities of Shaanxi Province, Xi’an 710077, China
- Applied Research Center for Life Science, Xi’an International University, Xi’an 710077, China
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Qiu B, Chen X, Xu F, Wu D, Zhou Y, Tu W, Jin H, He G, Chen S, Sun D. Nanofiber self-consistent additive manufacturing process for 3D microfluidics. MICROSYSTEMS & NANOENGINEERING 2022; 8:102. [PMID: 36119377 PMCID: PMC9477890 DOI: 10.1038/s41378-022-00439-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 07/22/2022] [Accepted: 07/27/2022] [Indexed: 06/13/2023]
Abstract
3D microfluidic devices have emerged as powerful platforms for analytical chemistry, biomedical sensors, and microscale fluid manipulation. 3D printing technology, owing to its structural fabrication flexibility, has drawn extensive attention in the field of 3D microfluidics fabrication. However, the collapse of suspended structures and residues of sacrificial materials greatly restrict the application of this technology, especially for extremely narrow channel fabrication. In this paper, a 3D printing strategy named nanofiber self-consistent additive manufacturing (NSCAM) is proposed for integrated 3D microfluidic chip fabrication with porous nanofibers as supporting structures, which avoids the sacrificial layer release process. In the NSCAM process, electrospinning and electrohydrodynamic jet (E-jet) writing are alternately employed. The porous polyimide nanofiber mats formed by electrospinning are ingeniously applied as both supporting structures for the suspended layer and percolating media for liquid flow, while the polydimethylsiloxane E-jet writing ink printed on the nanofiber mats (named construction fluid in this paper) controllably permeates through the porous mats. After curing, the resultant construction fluid-nanofiber composites are formed as 3D channel walls. As a proof of concept, a microfluidic pressure-gain valve, which contains typical features of narrow channels and movable membranes, was fabricated, and the printed valve was totally closed under a control pressure of 45 kPa with a fast dynamic response of 52.6 ms, indicating the feasibility of NSCAM. Therefore, we believe NSCAM is a promising technique for manufacturing microdevices that include movable membrane cavities, pillar cavities, and porous scaffolds, showing broad applications in 3D microfluidics, soft robot drivers or sensors, and organ-on-a-chip systems.
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Affiliation(s)
- Bin Qiu
- Fujian Micro/Nano Manufacturing Engineering Technology Research Center, Xiamen University, Xiamen, 361102 China
| | - Xiaojun Chen
- School of Mechanical and Electrical Engineering, Lingnan Normal University, Zhanjiang, 524000 China
| | - Feng Xu
- Fujian Micro/Nano Manufacturing Engineering Technology Research Center, Xiamen University, Xiamen, 361102 China
| | - Dongyang Wu
- Fujian Micro/Nano Manufacturing Engineering Technology Research Center, Xiamen University, Xiamen, 361102 China
| | - Yike Zhou
- Fujian Micro/Nano Manufacturing Engineering Technology Research Center, Xiamen University, Xiamen, 361102 China
| | - Wenchang Tu
- Fujian Micro/Nano Manufacturing Engineering Technology Research Center, Xiamen University, Xiamen, 361102 China
| | - Hang Jin
- Fujian Micro/Nano Manufacturing Engineering Technology Research Center, Xiamen University, Xiamen, 361102 China
| | - Gonghan He
- Fujian Micro/Nano Manufacturing Engineering Technology Research Center, Xiamen University, Xiamen, 361102 China
| | - Songyue Chen
- Fujian Micro/Nano Manufacturing Engineering Technology Research Center, Xiamen University, Xiamen, 361102 China
| | - Daoheng Sun
- Fujian Micro/Nano Manufacturing Engineering Technology Research Center, Xiamen University, Xiamen, 361102 China
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Zai Y, Min C, Wang Z, Ding Y, Zhao H, Su E, He N. A sample-to-answer, quantitative real-time PCR system with low-cost, gravity-driven microfluidic cartridge for rapid detection of SARS-CoV-2, influenza A/B, and human papillomavirus 16/18. LAB ON A CHIP 2022; 22:3436-3452. [PMID: 35972195 DOI: 10.1039/d2lc00434h] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The pandemic of coronavirus disease 2019 (COVID-19), due to the novel coronavirus (SARS-CoV-2), has created an unprecedented threat to the global health system, especially in resource-limited areas. This challenge shines a spotlight on the urgent need for a point-of-care (POC) quantitative real-time PCR (qPCR) test for sensitive and rapid diagnosis of viral infections. In a POC system, a closed, single-use, microfluidic cartridge is commonly utilized for integration of nucleic acid preparation, PCR amplification and florescence detection. But, most current cartridge systems often involve complicated nucleic acid extraction via active pumping that relies on cumbersome external hardware, causing increases in system complexity and cost. In this work, we demonstrate a gravity-driven cartridge design for an integrated viral RNA/DNA diagnostic test that does not require auxiliary hardware for fluid pumping due to adopted extraction-free amplification. This microfluidic cartridge only contains two reaction chambers for nucleic acid lysis and amplification respectively, enabling a fast qPCR test in less than 30 min. This gravity-driven pumping strategy can help simplify and minimize the microfluidic cartridge, thus enabling high-throughput (up to 12 test cartridges per test) molecular detection via a small cartridge readout system. Thus, this work addresses the scalability limitation of POC molecular testing and can be run in any settings. We verified the analytical sensitivity and specificity of the cartridge testing for respiratory pathogens and sexually transmitted diseases using SARS-CoV-2, influenza A/B RNA samples, and human papillomavirus 16/18 DNA samples. Our cartridge system exhibited a comparable detection performance to the current gold standard qPCR instrument ABI 7500. Moreover, our system showed very high diagnostic accuracy for viral RNA/DNA detection that was well validated by ROC curve analysis. The sample-to-answer molecular testing system reported in this work has the advantages of simplicity, rapidity, and low cost, making it highly promising for prevention and control of infectious diseases in poor-resource areas.
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Affiliation(s)
- Yunfeng Zai
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Si Pai Lou 2, Nanjing 210096, China.
- Getein Biotechnology Co., Ltd., Nanjing 210000, China.
| | - Chao Min
- Getein Biotechnology Co., Ltd., Nanjing 210000, China.
| | - Zunliang Wang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Si Pai Lou 2, Nanjing 210096, China.
| | - Yongjun Ding
- Getein Biotechnology Co., Ltd., Nanjing 210000, China.
| | - Huan Zhao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Si Pai Lou 2, Nanjing 210096, China.
- Getein Biotechnology Co., Ltd., Nanjing 210000, China.
| | - Enben Su
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Si Pai Lou 2, Nanjing 210096, China.
- Getein Biotechnology Co., Ltd., Nanjing 210000, China.
| | - Nongyue He
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Si Pai Lou 2, Nanjing 210096, China.
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Song X, Ren X, Zhao W, Zhao L, Wang S, Luo C, Li Y, Wei Q. A Portable Microfluidic-Based Electrochemiluminescence Sensor for Trace Detection of Trenbolone in Natural Water. Anal Chem 2022; 94:12531-12537. [PMID: 36044748 DOI: 10.1021/acs.analchem.2c02780] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this study, a portable electrochemiluminescence sensor chip was designed for trenbolone (TBE) trace detection in environmental water. First, a stable ECL signal was obtained with low-toxicity 3,4,9,10-perylenetetracarboxylic acid (PTCA) as a luminophore and persulfate (S2O82-) as a coreactant. Second, hollow-structured Cu2MoS4 was introduced as a coreaction accelerator to catalyze S2O82- reduction. The reversible conversion of the mixed-valence transition metal ions in Cu2MoS4 (Cu+/Cu2+ and Mo4+/Mo6+) greatly promoted the generation of the sulfate radical (SO4•-). Meanwhile, the special porous structure of Cu2MoS4 possessed a large specific surface area, thus enhancing its catalytic performance. Based on these enhancement mechanisms, a strong ECL signal was acquired, which improved the detection sensitivity of the constructed sensor. Importantly, a microfluidic chip was introduced for sensing detection, thereby improving the practicality of the sensor. The developed sensor chip was miniature and portable, exhibiting high sensitivity for TBE detection with a wide linear range (10 fg/mL-100 ng/mL) and lower detection limit (3.32 fg/mL). This was of great significance for timely and rapid analysis of steroid pollutants in natural water.
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Affiliation(s)
- Xianzhen Song
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering. University of Jinan, Jinan 250022, Shandong, China
| | - Xiang Ren
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering. University of Jinan, Jinan 250022, Shandong, China
| | - Wei Zhao
- Shandong Academy of Environmental Science Co., Ltd., Jinan 250022, Shandong, China
| | - Lu Zhao
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering. University of Jinan, Jinan 250022, Shandong, China
| | - Shoufeng Wang
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering. University of Jinan, Jinan 250022, Shandong, China
| | - Chuannan Luo
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering. University of Jinan, Jinan 250022, Shandong, China
| | - Yuyang Li
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering. University of Jinan, Jinan 250022, Shandong, China
| | - Qin Wei
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering. University of Jinan, Jinan 250022, Shandong, China
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43
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Meffan C, Menges J, Dolamore F, Mak D, Fee C, Dobson RCJ, Nock V. Capillaric field effect transistors. MICROSYSTEMS & NANOENGINEERING 2022; 8:33. [PMID: 35371537 PMCID: PMC8934874 DOI: 10.1038/s41378-022-00360-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 11/29/2021] [Accepted: 01/27/2022] [Indexed: 06/14/2023]
Abstract
Controlling fluid flow in capillaric circuits is a key requirement to increase their uptake for assay applications. Capillary action off-valves provide such functionality by pushing an occluding bubble into the channel using a difference in capillary pressure. Previously, we utilized the binary switching mode of this structure to develop a powerful set of fundamental fluidic valving operations. In this work, we study the transistor-like qualities of the off-valve and provide evidence that these structures are in fact functionally complementary to electronic junction field effect transistors. In view of this, we propose the new term capillaric field effect transistor to describe these types of valves. To support this conclusion, we present a theoretical description, experimental characterization, and practical application of analog flow resistance control. In addition, we demonstrate that the valves can also be reopened. We show modulation of the flow resistance from fully open to pinch-off, determine the flow rate-trigger channel volume relationship and demonstrate that the latter can be modeled using Shockley's equation for electronic transistors. Finally, we provide a first example of how the valves can be opened and closed repeatedly.
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Affiliation(s)
- Claude Meffan
- Department of Electrical and Computer Engineering, University of Canterbury, Christchurch, 8041 New Zealand
- Department of Microengineering, Kyoto University, 615-8540 Kyoto, Japan
| | - Julian Menges
- Department of Electrical and Computer Engineering, University of Canterbury, Christchurch, 8041 New Zealand
- School of Biological Sciences, University of Canterbury, Christchurch, 8041 New Zealand
- Biomolecular Interaction Centre, School of Biological Sciences, University of Canterbury, Christchurch, 8041 New Zealand
| | - Fabian Dolamore
- School of Biological Sciences, University of Canterbury, Christchurch, 8041 New Zealand
- Biomolecular Interaction Centre, School of Biological Sciences, University of Canterbury, Christchurch, 8041 New Zealand
| | - Daniel Mak
- Department of Electrical and Computer Engineering, University of Canterbury, Christchurch, 8041 New Zealand
- Biomolecular Interaction Centre, School of Biological Sciences, University of Canterbury, Christchurch, 8041 New Zealand
| | - Conan Fee
- Biomolecular Interaction Centre, School of Biological Sciences, University of Canterbury, Christchurch, 8041 New Zealand
- School of Product Design, University of Canterbury, Christchurch, 8041 New Zealand
| | - Renwick C. J. Dobson
- Biomolecular Interaction Centre, School of Biological Sciences, University of Canterbury, Christchurch, 8041 New Zealand
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, VIC 3010 Australia
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, 6140 New Zealand
| | - Volker Nock
- Department of Electrical and Computer Engineering, University of Canterbury, Christchurch, 8041 New Zealand
- Biomolecular Interaction Centre, School of Biological Sciences, University of Canterbury, Christchurch, 8041 New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, 6140 New Zealand
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Xiao Y, Li S, Pang Z, Wan C, Li L, Yuan H, Hong X, Du W, Feng X, Li Y, Chen P, Liu BF. Multi-reagents dispensing centrifugal microfluidics for point-of-care testing. Biosens Bioelectron 2022; 206:114130. [PMID: 35245866 DOI: 10.1016/j.bios.2022.114130] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 12/24/2022]
Abstract
Point-of-care testing (POCT) has shown great advantages for public health monitoring in resource-limited settings. However, developing of POCT tools with automated and accurate quantitative dispensing of multiple reagents and samples is challenging. Here, we demonstrate a novel multi-reagents dispensing centrifugal microfluidics (MDCM) that allows rapid and automated dispensing of multiple reagents and samples with high throughput and accuracy. The MDCM was designed with multiple aliquoting units with the hydrophobic valve at different radial positions. All reagents and samples were loaded simultaneously, dispensed in parallel by centrifugation at low speed, and then introduced into the reaction chamber sequentially by centrifugation at high speed. Two MDCM chips are demonstrated, including a uniform concentration generator and a gradient concentration generator. The concentration coefficient of variation (CV) among the independent reaction chambers was lower than 0.56%, and the theoretical quantitative concentration gradient was strongly correlated with the actual concentration gradient (R2 = 0.9938). We have successfully applied the MDCM to loop-mediated isothermal amplification (LAMP)-based nucleic acid detection for multiple infectious pathogens and antimicrobial susceptibility testing (AST) for kanamycin sulfate against E. coli. To further extend the applications, the MDCM has also been applied to bicinchoninic acid (BCA) protein assays with online calibration, reducing the detection time from 2 h to 10 min with a twenty-fold reduction in reagent consumption. These results indicated that the MDCM is a high potential platform for POCT.
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Affiliation(s)
- Yujin Xiao
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Shunji Li
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zheng Pang
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Chao Wan
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Lina Li
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Huijuan Yuan
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xianzhe Hong
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Wei Du
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xiaojun Feng
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yiwei Li
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Peng Chen
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China.
| | - Bi-Feng Liu
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
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Park R, Jeon S, Jeong J, Park SY, Han DW, Hong SW. Recent Advances of Point-of-Care Devices Integrated with Molecularly Imprinted Polymers-Based Biosensors: From Biomolecule Sensing Design to Intraoral Fluid Testing. BIOSENSORS 2022; 12:bios12030136. [PMID: 35323406 PMCID: PMC8946830 DOI: 10.3390/bios12030136] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 02/16/2022] [Accepted: 02/21/2022] [Indexed: 05/11/2023]
Abstract
Recent developments of point-of-care testing (POCT) and in vitro diagnostic medical devices have provided analytical capabilities and reliable diagnostic results for rapid access at or near the patient's location. Nevertheless, the challenges of reliable diagnosis still remain an important factor in actual clinical trials before on-site medical treatment and making clinical decisions. New classes of POCT devices depict precise diagnostic technologies that can detect biomarkers in biofluids such as sweat, tears, saliva or urine. The introduction of a novel molecularly imprinted polymer (MIP) system as an artificial bioreceptor for the POCT devices could be one of the emerging candidates to improve the analytical performance along with physicochemical stability when used in harsh environments. Here, we review the potential availability of MIP-based biorecognition systems as custom artificial receptors with high selectivity and chemical affinity for specific molecules. Further developments to the progress of advanced MIP technology for biomolecule recognition are introduced. Finally, to improve the POCT-based diagnostic system, we summarized the perspectives for high expandability to MIP-based periodontal diagnosis and the future directions of MIP-based biosensors as a wearable format.
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Affiliation(s)
- Rowoon Park
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Korea; (R.P.); (S.J.); (J.J.); (D.-W.H.)
| | - Sangheon Jeon
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Korea; (R.P.); (S.J.); (J.J.); (D.-W.H.)
| | - Jeonghwa Jeong
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Korea; (R.P.); (S.J.); (J.J.); (D.-W.H.)
| | - Shin-Young Park
- Department of Dental Education and Dental Research Institute, School of Dentistry, Seoul National University, Seoul 03080, Korea;
| | - Dong-Wook Han
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Korea; (R.P.); (S.J.); (J.J.); (D.-W.H.)
- Department of Optics and Mechatronics Engineering, Pusan National University, Busan 46241, Korea
| | - Suck Won Hong
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Korea; (R.P.); (S.J.); (J.J.); (D.-W.H.)
- Department of Optics and Mechatronics Engineering, Pusan National University, Busan 46241, Korea
- Correspondence:
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Yang SM, Lv S, Zhang W, Cui Y. Microfluidic Point-of-Care (POC) Devices in Early Diagnosis: A Review of Opportunities and Challenges. SENSORS 2022; 22:s22041620. [PMID: 35214519 PMCID: PMC8875995 DOI: 10.3390/s22041620] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/07/2022] [Accepted: 02/11/2022] [Indexed: 12/12/2022]
Abstract
The early diagnosis of infectious diseases is critical because it can greatly increase recovery rates and prevent the spread of diseases such as COVID-19; however, in many areas with insufficient medical facilities, the timely detection of diseases is challenging. Conventional medical testing methods require specialized laboratory equipment and well-trained operators, limiting the applicability of these tests. Microfluidic point-of-care (POC) equipment can rapidly detect diseases at low cost. This technology could be used to detect diseases in underdeveloped areas to reduce the effects of disease and improve quality of life in these areas. This review details microfluidic POC equipment and its applications. First, the concept of microfluidic POC devices is discussed. We then describe applications of microfluidic POC devices for infectious diseases, cardiovascular diseases, tumors (cancer), and chronic diseases, and discuss the future incorporation of microfluidic POC devices into applications such as wearable devices and telemedicine. Finally, the review concludes by analyzing the present state of the microfluidic field, and suggestions are made. This review is intended to call attention to the status of disease treatment in underdeveloped areas and to encourage the researchers of microfluidics to develop standards for these devices.
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Affiliation(s)
- Shih-Mo Yang
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China; (S.-M.Y.); (S.L.)
| | - Shuangsong Lv
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China; (S.-M.Y.); (S.L.)
| | - Wenjun Zhang
- Division of Biomedical Engineering, University of Saskatchewan, Saskatoon, SK S7N 5A9, Canada;
| | - Yubao Cui
- Clinical Research Center, The Affiliated Wuxi People’s Hospital, Nanjing Medical University, 299 Qingyang Road, Wuxi 214023, China
- Correspondence: ; Tel.: +86-510-853-50368
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47
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Gradisteanu Pircalabioru G, Iliescu FS, Mihaescu G, Cucu AI, Ionescu ON, Popescu M, Simion M, Burlibasa L, Tica M, Chifiriuc MC, Iliescu C. Advances in the Rapid Diagnostic of Viral Respiratory Tract Infections. Front Cell Infect Microbiol 2022; 12:807253. [PMID: 35252028 PMCID: PMC8895598 DOI: 10.3389/fcimb.2022.807253] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 01/04/2022] [Indexed: 12/16/2022] Open
Abstract
Viral infections are a significant public health problem, primarily due to their high transmission rate, various pathological manifestations, ranging from mild to severe symptoms and subclinical onset. Laboratory diagnostic tests for infectious diseases, with a short enough turnaround time, are promising tools to improve patient care, antiviral therapeutic decisions, and infection prevention. Numerous microbiological molecular and serological diagnostic testing devices have been developed and authorised as benchtop systems, and only a few as rapid miniaturised, fully automated, portable digital platforms. Their successful implementation in virology relies on their performance and impact on patient management. This review describes the current progress and perspectives in developing micro- and nanotechnology-based solutions for rapidly detecting human viral respiratory infectious diseases. It provides a nonexhaustive overview of currently commercially available and under-study diagnostic testing methods and discusses the sampling and viral genetic trends as preanalytical components influencing the results. We describe the clinical performance of tests, focusing on alternatives such as microfluidics-, biosensors-, Internet-of-Things (IoT)-based devices for rapid and accurate viral loads and immunological responses detection. The conclusions highlight the potential impact of the newly developed devices on laboratory diagnostic and clinical outcomes.
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Affiliation(s)
| | - Florina Silvia Iliescu
- National Institute for Research and Development in Microtechnologies—IMT, Bucharest, Romania
| | | | | | - Octavian Narcis Ionescu
- National Institute for Research and Development in Microtechnologies—IMT, Bucharest, Romania
- Petroleum-Gas University of Ploiesti, Ploiesti, Romania
| | - Melania Popescu
- National Institute for Research and Development in Microtechnologies—IMT, Bucharest, Romania
| | - Monica Simion
- National Institute for Research and Development in Microtechnologies—IMT, Bucharest, Romania
| | | | - Mihaela Tica
- Emergency University Hospital, Bucharest, Romania
| | - Mariana Carmen Chifiriuc
- Research Institute of the University of Bucharest, Bucharest, Romania
- Faculty of Biology, University of Bucharest, Bucharest, Romania
- Academy of Romanian Scientists, Bucharest, Romania
- The Romanian Academy, Bucharest, Romania
- *Correspondence: Mariana Carmen Chifiriuc, ; Ciprian Iliescu,
| | - Ciprian Iliescu
- National Institute for Research and Development in Microtechnologies—IMT, Bucharest, Romania
- Academy of Romanian Scientists, Bucharest, Romania
- Faculty of Applied Chemistry and Materials Science, University “Politehnica” of Bucharest, Bucharest, Romania
- *Correspondence: Mariana Carmen Chifiriuc, ; Ciprian Iliescu,
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48
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Gopal A, Yan L, Kashif S, Munshi T, Roy VAL, Voelcker NH, Chen X. Biosensors and Point-of-Care Devices for Bacterial Detection: Rapid Diagnostics Informing Antibiotic Therapy. Adv Healthc Mater 2022; 11:e2101546. [PMID: 34850601 DOI: 10.1002/adhm.202101546] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 11/20/2021] [Indexed: 02/06/2023]
Abstract
With an exponential rise in antimicrobial resistance and stagnant antibiotic development pipeline, there is, more than ever, a crucial need to optimize current infection therapy approaches. One of the most important stages in this process requires rapid and effective identification of pathogenic bacteria responsible for diseases. Current gold standard techniques of bacterial detection include culture methods, polymerase chain reactions, and immunoassays. However, their use is fraught with downsides with high turnaround time and low accuracy being the most prominent. This imposes great limitations on their eventual application as point-of-care devices. Over time, innovative detection techniques have been proposed and developed to curb these drawbacks. In this review, a systematic summary of a range of biosensing platforms is provided with a strong focus on technologies conferring high detection sensitivity and specificity. A thorough analysis is performed and the benefits and drawbacks of each type of biosensor are highlighted, the factors influencing their potential as point-of-care devices are discussed, and the authors' insights for their translation from proof-of-concept systems into commercial medical devices are provided.
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Affiliation(s)
- Ashna Gopal
- School of Engineering Institute for Bioengineering The University of Edinburgh Edinburgh EH9 3JL UK
| | - Li Yan
- College of Health Science and Environmental Engineering Shenzhen Technology University Shenzhen 518118 China
| | - Saima Kashif
- School of Engineering Institute for Bioengineering The University of Edinburgh Edinburgh EH9 3JL UK
| | - Tasnim Munshi
- School of Chemistry University of Lincoln, Brayford Pool Lincoln Lincolnshire LN6 7TS UK
| | | | - Nicolas H. Voelcker
- Drug Delivery Disposition and Dynamics Monash Institute of Pharmaceutical Sciences Monash University Parkville Victoria VIC 3052 Australia
- Melbourne Centre for Nanofabrication Victorian Node of the Australian National Fabrication Facility Clayton Victoria 3168 Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Clayton Victoria 3168 Australia
| | - Xianfeng Chen
- School of Engineering Institute for Bioengineering The University of Edinburgh Edinburgh EH9 3JL UK
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49
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Tian LL, Li CH, Ye QC, Li YF, Huang CZ, Zhan L, Wang DM, Zhen SJ. A centrifugal microfluidic chip for point-of-care testing of staphylococcal enterotoxin B in complex matrices. NANOSCALE 2022; 14:1380-1385. [PMID: 35018396 DOI: 10.1039/d1nr05599b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Staphylococcal enterotoxin B (SEB) is a typical biological toxin that causes food poisoning. Currently reported SEB detection methods have the drawbacks of sophisticated sample preparation and being time-consuming and labor-intensive. Herein, we propose a strategy based on an immune sandwich structure operating on a centrifugal microfluidic chip for point-of-care testing (POCT) of SEB. The fluorescent microparticle-labeled primary antibody (CM-EUs-Ab1), capture antibody (CAb), and goat anti-mouse IgG antibody (SAb) were modified on the bond area, T-area, and C-area, respectively. When SEB was added, it first reacted with the CM-EUs-Ab1 through the specific recognition between SEB and the Ab1. Then, under capillarity, the conjugates of SEB and the CM-EUs-Ab1 were captured by the CAb when they flowed to the T-area, and the remaining CM-EUs-Ab1 bound with the SAb in the C-area. Finally, this chip was put into a dry fluorescence detection analyzer for centrifugation and on-site detection of SEB. The fluorescence intensity ratio of the T-area to the C-area was positively correlated with the concentration of SEB. The resulting linear range was 0.1-250 ng mL-1, and the limit of detection (3σ/k) was 68 pg mL-1. This POCT platform only needs 20 μL of sample and can realize the full process of detection within 12 min. This chip also exhibits good stability for 35 days. Additionally, the proposed method has been successfully utilized for the detection of SEB in urine, milk, and juice without any pre-treatment of the samples. Thus, this platform is expected to be applied to food safety testing and clinical diagnosis.
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Affiliation(s)
- Li Li Tian
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Chun Hong Li
- Key Laboratory of Luminescent and Real-Time Analytical System (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | - Qi Chao Ye
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Yuan Fang Li
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Cheng Zhi Huang
- Key Laboratory of Luminescent and Real-Time Analytical System (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | - Lei Zhan
- Key Laboratory of Luminescent and Real-Time Analytical System (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | - Dong Mei Wang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Shu Jun Zhen
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
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50
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Hang Y, Boryczka J, Wu N. Visible-light and near-infrared fluorescence and surface-enhanced Raman scattering point-of-care sensing and bio-imaging: a review. Chem Soc Rev 2022; 51:329-375. [PMID: 34897302 PMCID: PMC9135580 DOI: 10.1039/c9cs00621d] [Citation(s) in RCA: 74] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
This review article deals with the concepts, principles and applications of visible-light and near-infrared (NIR) fluorescence and surface-enhanced Raman scattering (SERS) in in vitro point-of-care testing (POCT) and in vivo bio-imaging. It has discussed how to utilize the biological transparency windows to improve the penetration depth and signal-to-noise ratio, and how to use surface plasmon resonance (SPR) to amplify fluorescence and SERS signals. This article has highlighted some plasmonic fluorescence and SERS probes. It has also reviewed the design strategies of fluorescent and SERS sensors in the detection of metal ions, small molecules, proteins and nucleic acids. Particularly, it has provided perspectives on the integration of fluorescent and SERS sensors into microfluidic chips as lab-on-chips to realize point-of-care testing. It has also discussed the design of active microfluidic devices and non-paper- or paper-based lateral flow assays for in vitro diagnostics. In addition, this article has discussed the strategies to design in vivo NIR fluorescence and SERS bio-imaging platforms for monitoring physiological processes and disease progression in live cells and tissues. Moreover, it has highlighted the applications of POCT and bio-imaging in testing toxins, heavy metals, illicit drugs, cancers, traumatic brain injuries, and infectious diseases such as COVID-19, influenza, HIV and sepsis.
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Affiliation(s)
- Yingjie Hang
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, MA 01003-9303, USA.
| | - Jennifer Boryczka
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, MA 01003-9303, USA.
| | - Nianqiang Wu
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, MA 01003-9303, USA.
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