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Sharma G, Dwibedi V, Seth CS, Singh S, Ramamurthy PC, Bhadrecha P, Singh J. Direct and indirect technical guide for the early detection and management of fungal plant diseases. CURRENT RESEARCH IN MICROBIAL SCIENCES 2024; 7:100276. [PMID: 39345949 PMCID: PMC11428012 DOI: 10.1016/j.crmicr.2024.100276] [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] [Indexed: 10/01/2024] Open
Abstract
Fungal plant diseases are a major threat to plants and vegetation worldwide. Recent technological advancements in biotechnological tools and techniques have made it possible to identify and manage fungal plant diseases at an early stage. These techniques include direct methods, such as ELISA, immunofluorescence, PCR, flow cytometry, and in-situ hybridization, as well as indirect methods, such as fluorescence imaging, hyperspectral techniques, thermography, biosensors, nanotechnology, and nano-enthused biosensors. Early detection of fungal plant diseases can help to prevent major losses to plantations. This is because early detection allows for the implementation of control measures, such as the use of fungicides or resistant varieties. Early detection can also help to minimize the spread of the disease to other plants. The techniques discussed in this review provide a valuable resource for researchers and farmers who are working to prevent and manage fungal plant diseases. These techniques can help to ensure food security and protect our valuable plant resources.
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Affiliation(s)
- Gargi Sharma
- Department of Biotechnology, University Institute of Biotechnology, Chandigarh University, Gharuan, 140413, Punjab, India
| | - Vagish Dwibedi
- Department of Biotechnology, University Institute of Biotechnology, Chandigarh University, Gharuan, 140413, Punjab, India
- Agriculture Research Organization, Volcani Center, Rishon LeZion 7505101, Israel
| | | | - Simranjeet Singh
- Interdisciplinary Centre for Water Research (ICWaR), Indian Institute of Science, Bengaluru, Karnataka, 560012
| | - Praveen C Ramamurthy
- Interdisciplinary Centre for Water Research (ICWaR), Indian Institute of Science, Bengaluru, Karnataka, 560012
| | - Pooja Bhadrecha
- Department of Biotechnology, University Institute of Biotechnology, Chandigarh University, Gharuan, 140413, Punjab, India
| | - Joginder Singh
- Department of Botany, Nagaland University, Lumami, Nagaland, India
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2
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Elsayed M, Bodo L, Gaoiran C, Keuhnelian P, Dosajh A, Luk V, Schwandt M, French JL, Ghosh A, Erickson B, Charlesworth AG, Millman J, Wheeler AR. Toward Analysis at the Point of Need: A Digital Microfluidic Approach to Processing Multi-Source Sexual Assault Samples. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2405712. [PMID: 39230280 DOI: 10.1002/advs.202405712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 07/05/2024] [Indexed: 09/05/2024]
Abstract
Forensic case samples collected in sexual assaults typically contain DNA from multiple sources, which complicates short-tandem repeat (STR) profiling. These samples are typically sent to a laboratory to separate the DNA from sperm and non-sperm sources prior to analysis. Here, the automation and miniaturization of these steps using digital microfluidics (DMF) is reported, which may eventually enable processing sexual assault samples outside of the laboratory, at the point of need. When applied to vaginal swab samples collected up to 12 h post-coitus (PC), the new method identifies single-source (male) STR profiles. When applied to samples collected 24-72 h PC, the method identifies mixed STR profiles, suggesting room for improvement and/or potential for data deconvolution. In sum, an automated, miniaturized sample pre-processing method for separating the DNA contained in sexual assault samples is demonstrated. This type of automated processing using DMF, especially when combined with Rapid DNA Analysis, has the potential to be used for processing of sexual assault samples in hospitals, police offices, and other locations outside of the laboratory.
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Affiliation(s)
- Mohamed Elsayed
- Institute of Biomedical Engineering, University of Toronto, 164 College Street, Toronto, ON, M5S 3E2, Canada
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, ON, M5S 3E1, Canada
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, M5S 3H6, Canada
| | - Leticia Bodo
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, ON, M5S 3E1, Canada
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, M5S 3H6, Canada
| | - Christine Gaoiran
- Forensic Science Department, University of Toronto Mississauga, 4th floor, Terrence Donnelly Health Sciences Complex, 3359 Mississauga Rd., Mississauga, ON, L5L 1C6, Canada
| | - Palig Keuhnelian
- Forensic Science Department, University of Toronto Mississauga, 4th floor, Terrence Donnelly Health Sciences Complex, 3359 Mississauga Rd., Mississauga, ON, L5L 1C6, Canada
| | - Advikaa Dosajh
- Forensic Science Department, University of Toronto Mississauga, 4th floor, Terrence Donnelly Health Sciences Complex, 3359 Mississauga Rd., Mississauga, ON, L5L 1C6, Canada
| | - Vivienne Luk
- Forensic Science Department, University of Toronto Mississauga, 4th floor, Terrence Donnelly Health Sciences Complex, 3359 Mississauga Rd., Mississauga, ON, L5L 1C6, Canada
| | - Melissa Schwandt
- ANDE Corporation, 1860 Industrial Circle, Suite A, Longmont, CO, 80501, USA
| | - Julie L French
- ANDE Corporation, 1860 Industrial Circle, Suite A, Longmont, CO, 80501, USA
| | - Alpana Ghosh
- Centre of Forensic Sciences, 25 Morton Shulman Avenue, Toronto, ON, M3M 0B1, Canada
| | - Barbara Erickson
- Centre of Forensic Sciences, 25 Morton Shulman Avenue, Toronto, ON, M3M 0B1, Canada
| | | | - Jonathan Millman
- Centre of Forensic Sciences, 25 Morton Shulman Avenue, Toronto, ON, M3M 0B1, Canada
| | - Aaron R Wheeler
- Institute of Biomedical Engineering, University of Toronto, 164 College Street, Toronto, ON, M5S 3E2, Canada
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, ON, M5S 3E1, Canada
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, M5S 3H6, Canada
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Li X, Tang R, Li D, Li F, Chen L, Zhu D, Feng G, Zhang K, Han B. Investigations of the Laser Ablation Mechanism of PMMA Microchannels Using Single-Pass and Multi-Pass Laser Scans. Polymers (Basel) 2024; 16:2361. [PMID: 39204581 PMCID: PMC11359435 DOI: 10.3390/polym16162361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2024] [Revised: 08/09/2024] [Accepted: 08/19/2024] [Indexed: 09/04/2024] Open
Abstract
CO2 laser machining is a cost effective and time saving solution for fabricating microchannels on polymethylmethacrylate (PMMA). Due to the lack of research on the incubation effect and ablation behavior of PMMA under high-power laser irradiation, predictions of the microchannel profile are limited. In this study, the ablation process and mechanism of a continuous CO2 laser machining process on microchannel production in PMMA in single-pass and multi-pass laser scan modes are investigated. It is found that a higher laser energy density of a single pass causes a lower ablation threshold. The ablated surface can be divided into three regions: the ablation zone, the incubation zone, and the virgin zone. The PMMA ablation process is mainly attributed to the thermal decomposition reactions and the splashing of molten polymer. The depth, width, aspect ratio, volume ablation rate, and mass ablation rate of the channel increase as the laser scanning speed decreases and the number of laser scans increases. The differences in ablation results obtained under the same total laser energy density using different scan modes are attributed to the incubation effect, which is caused by the thermal deposition of laser energy in the polymer. Finally, an optimized simulation model that is used to solve the problem of a channel width greater than spot diameter is proposed. The error percentage between the experimental and simulation results varies from 0.44% to 5.9%.
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Affiliation(s)
- Xiao Li
- Zhejiang Provincial Key Laboratory of Laser Processing Robotics, College of Mechanical and Electrical Engineering, Wenzhou University, Wenzhou 325035, China; (R.T.); (D.L.); (K.Z.)
- China International Science & Technology Cooperation Base for Laser Processing Robotics, Wenzhou University, Wenzhou 325035, China
- Institute of Laser and Optoelectronic Intelligent Manufacturing, Wenzhou University, Wenzhou 325035, China
| | - Rujun Tang
- Zhejiang Provincial Key Laboratory of Laser Processing Robotics, College of Mechanical and Electrical Engineering, Wenzhou University, Wenzhou 325035, China; (R.T.); (D.L.); (K.Z.)
- Institute of Laser and Optoelectronic Intelligent Manufacturing, Wenzhou University, Wenzhou 325035, China
| | - Ding Li
- Zhejiang Provincial Key Laboratory of Laser Processing Robotics, College of Mechanical and Electrical Engineering, Wenzhou University, Wenzhou 325035, China; (R.T.); (D.L.); (K.Z.)
- Institute of Laser and Optoelectronic Intelligent Manufacturing, Wenzhou University, Wenzhou 325035, China
| | - Fengping Li
- Oujiang Laboratory, Zhejiang Laboratory for Regenerative Medicine, Vision and Brain Health, Wenzhou 325035, China; (F.L.); (G.F.)
- Wenzhou Key Laboratory of Ultrafast Laser Precision Manufacturing Technology, Wenzhou 325035, China
| | - Leiqing Chen
- College of Mechanical and Electrical Engineering, Wenzhou University, Wenzhou 325035, China;
| | - Dehua Zhu
- College of Mechanical and Electrical Engineering, Wenzhou University, Wenzhou 325035, China;
| | - Guang Feng
- Oujiang Laboratory, Zhejiang Laboratory for Regenerative Medicine, Vision and Brain Health, Wenzhou 325035, China; (F.L.); (G.F.)
| | - Kunpeng Zhang
- Zhejiang Provincial Key Laboratory of Laser Processing Robotics, College of Mechanical and Electrical Engineering, Wenzhou University, Wenzhou 325035, China; (R.T.); (D.L.); (K.Z.)
- Institute of Laser and Optoelectronic Intelligent Manufacturing, Wenzhou University, Wenzhou 325035, China
| | - Bing Han
- School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;
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Das S, Vanarse VB, Bandyopadhyay D. Tailored micromixing in chemically patterned microchannels undergoing electromagnetohydrodynamic flow. BIOMICROFLUIDICS 2024; 18:044108. [PMID: 39184284 PMCID: PMC11344636 DOI: 10.1063/5.0209606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 08/07/2024] [Indexed: 08/27/2024]
Abstract
The study unveils a simple, non-invasive method to perform micromixing with the help of spatiotemporal variation in the Lorentz force inside a microchannel decorated with chemically heterogeneous walls. Computational fluid dynamics simulations have been utilized to investigate micromixing under the coupled influence of electric and magnetic fields, namely, electromagnetohydrodynamics, to alter the direction of the Lorentz force at the specific locations by creating the reverse flow zones where the pressure gradient, ∇ p = 0 . The study explores the impact of periodicity, distribution, and size of electrodes alongside the magnitude of applied field intensity, the flow rate of the fluid, and the nature of the electric field on the generation of the mixing vortices and their strength inside the microchannels. The results illustrate that the wall heterogeneities can indeed enforce the formation of localized on-demand vortices when the strength of the localized reverse flow overcomes the inertia of the mainstream flow. In such a scenario, while the vortex size and strength are found to increase with the size of the heterogeneous electrodes and field intensities, the number of vortices increases with the number of heterogeneous electrodes decorated on the channel wall. The presence of a non-zero pressure-driven inflow velocity is found to subdue the strength of the vortices to restrict the mixing facilitated by the localized variation of the Lorentz force. Interestingly, the usage of an alternating current (AC) electric field is found to provide an additional non-invasive control on the mixing vortices by enabling periodic changes in their direction of rotation. A case study in this regard discloses the possibility of rapid mixing with the usage of an AC electric field for a pair of miscible fluids inside a microchannel.
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Affiliation(s)
- Soumadip Das
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Vinod B. Vanarse
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam 781039, India
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Ferreira M, Carvalho V, Ribeiro J, Lima RA, Teixeira S, Pinho D. Advances in Microfluidic Systems and Numerical Modeling in Biomedical Applications: A Review. MICROMACHINES 2024; 15:873. [PMID: 39064385 PMCID: PMC11279158 DOI: 10.3390/mi15070873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 06/29/2024] [Accepted: 06/29/2024] [Indexed: 07/28/2024]
Abstract
The evolution in the biomedical engineering field boosts innovative technologies, with microfluidic systems standing out as transformative tools in disease diagnosis, treatment, and monitoring. Numerical simulation has emerged as a tool of increasing importance for better understanding and predicting fluid-flow behavior in microscale devices. This review explores fabrication techniques and common materials of microfluidic devices, focusing on soft lithography and additive manufacturing. Microfluidic systems applications, including nucleic acid amplification and protein synthesis, as well as point-of-care diagnostics, DNA analysis, cell cultures, and organ-on-a-chip models (e.g., lung-, brain-, liver-, and tumor-on-a-chip), are discussed. Recent studies have applied computational tools such as ANSYS Fluent 2024 software to numerically simulate the flow behavior. Outside of the study cases, this work reports fundamental aspects of microfluidic simulations, including fluid flow, mass transport, mixing, and diffusion, and highlights the emergent field of organ-on-a-chip simulations. Additionally, it takes into account the application of geometries to improve the mixing of samples, as well as surface wettability modification. In conclusion, the present review summarizes the most relevant contributions of microfluidic systems and their numerical modeling to biomedical engineering.
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Affiliation(s)
- Mariana Ferreira
- Center for Microelectromechanical Systems (CMEMS-UMinho), University of Minho, Campus de Azurém, 4800-058 Guimaraes, Portugal; (M.F.); (D.P.)
| | - Violeta Carvalho
- Center for Microelectromechanical Systems (CMEMS-UMinho), University of Minho, Campus de Azurém, 4800-058 Guimaraes, Portugal; (M.F.); (D.P.)
- LABBELS—Associate Laboratory, 4800-058 Guimaraes, Portugal;
- MEtRICs, Mechanical Engineering Department, University of Minho, Campus de Azurém, 4800-058 Guimaraes, Portugal;
- ALGORITMI Center/LASI, University of Minho, Campus de Azurém, 4800-058 Guimaraes, Portugal
| | - João Ribeiro
- Instituto Politécnico de Bragança, 5300-052 Bragança, Portugal;
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Campus Santa Apolónia, 5300-253 Bragança, Portugal
- CIMO—Mountain Research Center, Campus Santa Apolónia, 5300-253 Bragança, Portugal
| | - Rui A. Lima
- MEtRICs, Mechanical Engineering Department, University of Minho, Campus de Azurém, 4800-058 Guimaraes, Portugal;
- CEFT—Transport Phenomena Research Center, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | | | - Diana Pinho
- Center for Microelectromechanical Systems (CMEMS-UMinho), University of Minho, Campus de Azurém, 4800-058 Guimaraes, Portugal; (M.F.); (D.P.)
- LABBELS—Associate Laboratory, 4800-058 Guimaraes, Portugal;
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Shivakumar N, Nanjundaiah SA, Thiruvengadam V, Channappa M, Thammayya SK, Aravindaram K, Sushil SN. Development of recombinase polymerase amplification-based colorimetric detection assay for rapid identification of invasive cassava mealybug, Phenacoccus manihoti Matile-Ferrero. Saudi J Biol Sci 2024; 31:104005. [PMID: 38741655 PMCID: PMC11089393 DOI: 10.1016/j.sjbs.2024.104005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 04/19/2024] [Accepted: 04/26/2024] [Indexed: 05/16/2024] Open
Abstract
Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae), is an economically important invasive cassava pest responsible for the massive devastation of cassava in Asia and African continent. Initially, identifying this invasive pest posed challenges because it closely resembled native mealybug species. Additionally, the traditional morphological identification process is labor-intensive and time-consuming. Detecting invasive pests at an early stage is crucial, hence development of a rapid detection assay is essential. In the current study, we have developed a simple, rapid, sensitive, and efficient molecular detection assay for P. manihoti based on Recombinase Polymerase Amplification (RPA). The primers for the RPA assay were designed using unique nucleic acid sequences of P. manihoti, and the protocol was standardized. Specificity test demonstrated that the RPA assay could amplify DNA of P. manihoti only, and no amplification was observed in six other mealybug species. The specificity of assay was confirmed using SYBR green-based colorimetric detection and gel electrophoresis where positive samples showed 195 bp amplicon size in P. manihoti samples. The assay successfully amplified P. manihoti DNA in thirty minutes at an annealing temperature of 41° C in a water bath and displayed a sensitivity of 72.5 picograms per microliter. The assay's simplicity, rapidity, and high sensitivity make it a valuable tool for detecting and monitoring P. manihoti in quarantine stations and facilitating in development of a portable diagnostic kit.
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Affiliation(s)
- Nanditha Shivakumar
- ICAR-National Bureau of Agricultural Insect Resources, Bengaluru 560 024, India
| | | | | | | | | | - Kandan Aravindaram
- ICAR-National Bureau of Agricultural Insect Resources, Bengaluru 560 024, India
| | - Satya Nand Sushil
- ICAR-National Bureau of Agricultural Insect Resources, Bengaluru 560 024, India
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Han J, Zhuang B, Zou L, Wang D, Jiang L, Wei YL, Zhao L, Zhao L, Li C. A developmental validation of the Quick TargSeq 1.0 integrated system for automated DNA genotyping in forensic science for reference samples. Electrophoresis 2024; 45:814-828. [PMID: 38459798 DOI: 10.1002/elps.202300187] [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: 08/22/2023] [Revised: 02/07/2024] [Accepted: 02/21/2024] [Indexed: 03/10/2024]
Abstract
Analysis of short tandem repeats (STRs) is a global standard method for human identification. Insertion/Deletion polymorphisms (DIPs) can be used for biogeographical ancestry inference. Current DNA typing involves a trained forensic worker operating several specialized instruments in a controlled laboratory environment, which takes 6-8 h. We developed the Quick TargSeq 1.0 integrated system (hereinafter abbreviated to Quick TargSeq) for automated generation of STR and DIP profiles from buccal swab samples and blood stains. The system fully integrates the processes of DNA extraction, polymerase chain reaction (PCR) amplification, and electrophoresis separation using microfluidic biochip technology. Internal validation studies were performed using RTyper 21 or DIP 38 chip cartridges with single-source reference samples according to the Scientific Working Group for DNA Analysis Methods guidelines. These results indicated that the Quick TargSeq system can process reference samples and generate STR or DIP profiles in approximately 2 h, and the profiles were concordant with those determined using traditional STR or DIP analysis methods. Thus, reproducible and concordant DNA profiles were obtained from reference samples. Throughout the study, no lane-to-lane or run-to-run contamination was observed. The Quick TargSeq system produced full profiles from buccal swabs with at least eight swipes, dried blood spot cards with two 2-mm disks, or 10 ng of purified DNA. Potential PCR inhibitors (i.e., coffee, smoking tobacco, and chewing tobacco) did not appear to affect the amplification reactions of the instrument. The overall success rate and concordance rate of 153 samples were 94.12% and 93.44%, respectively, which is comparable to other commercially available rapid DNA instruments. A blind test initiated by a DNA expert group showed that the system can correctly produce DNA profiles with 97.29% genotype concordance with standard bench-processing methods, and the profiles can be uploaded into the national DNA database. These results demonstrated that the Quick TargSeq system can rapidly generate reliable DNA profiles in an automated manner and has the potential for use in the field and forensic laboratories.
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Affiliation(s)
- Junping Han
- Technology Department of Chaoyang Sub-bureau, Beijing Public Security Bureau, Beijing, P. R. China
- Key Laboratory of Forensic Genetics, Beijing Engineering Research Center of Crime Scene Evidence Examination, National Engineering Laboratory for Forensic Science, Institute of Forensic Science, Beijing, P. R. China
| | - Bin Zhuang
- Beijing CapitalBio Technology Ltd. Co., Beijing, P. R. China
| | - Lixin Zou
- Jiangsu Key Laboratory of Phylogenomics and Comparative Genomics, Jiangsu International Joint Center of Genomics, School of Life Sciences, Jiangsu Normal University, Xuzhou, Jiangsu, P. R. China
| | - Daoyu Wang
- People's Public Security University of China, Beijing, P. R. China
| | - Li Jiang
- Key Laboratory of Forensic Genetics, Beijing Engineering Research Center of Crime Scene Evidence Examination, National Engineering Laboratory for Forensic Science, Institute of Forensic Science, Beijing, P. R. China
| | - Yi-Liang Wei
- Jiangsu Key Laboratory of Phylogenomics and Comparative Genomics, Jiangsu International Joint Center of Genomics, School of Life Sciences, Jiangsu Normal University, Xuzhou, Jiangsu, P. R. China
| | - Lijian Zhao
- Beijing CapitalBio Technology Ltd. Co., Beijing, P. R. China
| | - Lei Zhao
- Key Laboratory of Forensic Genetics, Beijing Engineering Research Center of Crime Scene Evidence Examination, National Engineering Laboratory for Forensic Science, Institute of Forensic Science, Beijing, P. R. China
| | - Caixia Li
- Key Laboratory of Forensic Genetics, Beijing Engineering Research Center of Crime Scene Evidence Examination, National Engineering Laboratory for Forensic Science, Institute of Forensic Science, Beijing, P. R. China
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Wan TY, Hwa HL, Lee TT, Lu YW. High efficiency sperm enrichment from forensic mock samples in bubble-based acoustic filtration devices for short tandem repeat (STR) analysis. LAB ON A CHIP 2024; 24:434-445. [PMID: 38086663 DOI: 10.1039/d3lc00632h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2024]
Abstract
A bubble-based acoustofluidic filtration (BAF) microfluidic device, which employs cross-flow filtration (CFF) and acoustic streaming, separates cells with high efficiency for forensic analysis. Forensic samples are typically complex and contain a substantial number of squamous epithelial cells from the female vagina, which tend to have fouling problems during filtration due to their morphological and cell adhesion differences. To overcome this issue, the BAF device utilizes bubble oscillation by bulk acoustic wave (BAW) to generate acoustic streaming, which offers additional hydrodynamic forces for side flushing cleaning and achieves effective removal within a mere 0.5 seconds. Our device is tested with imbalanced cell mixtures of sperm and epithelial cells with large disparity ratios. By concurrently employing CFF and acoustic streaming, the samples with our sperm-enrichment can achieve 91.72-97.78% for the recovery rate and 74.58-89.26% for the purity in the sperm enrichment. They are further subjected to short tandem repeat (STR) profiling, enabling the identification of perpetrators. Notably, even samples with minimal sperm cells demonstrated a significant increase in the male donor DNA ratio, while the peak heights of female alleles became virtually undetectable. The exceptional cell separation capability demonstrated by our BAF device highlights its potential applications in forensic sciences and other areas of cell biology.
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Affiliation(s)
- Ting-Yu Wan
- Department of Biomechatronics Engineering, National Taiwan University, Taipei, Taiwan.
| | - Hsiao-Lin Hwa
- Graduate Institute of Forensic Medicine, National Taiwan University, Taipei, Taiwan
| | - Tsui-Ting Lee
- Graduate Institute of Forensic Medicine, National Taiwan University, Taipei, Taiwan
| | - Yen-Wen Lu
- Department of Biomechatronics Engineering, National Taiwan University, Taipei, Taiwan.
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Dong Y, Chen B, Cai G, Xu F, Li L, Cheng X, Shi X, Peng B, Mi S. Integrated nucleic acid purification technology based on amino-modified centrifugal microfluidic chip. Biotechnol J 2024; 19:e2300113. [PMID: 38050772 DOI: 10.1002/biot.202300113] [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: 03/14/2023] [Revised: 11/27/2023] [Accepted: 12/01/2023] [Indexed: 12/06/2023]
Abstract
Nucleic acid detection is an important tool for clinical diagnosis. The purification of the sample is the most time-consuming step in the nucleic acid testing process and will affect the results of the assay. Here, we developed a surface modification-based nucleic acid purification method and designed an accompanying set of centrifugation equipment and chips to integrate the steps of nucleic acid purification on a single platform. The results of experiments with HeLa cells and HPV type 16 as samples showed that the mentioned method had good nucleic acid purification capability and the accompanying equipment greatly simplified the operation of the experimenters in the whole process. Overall, our equipment can improve the efficiency of nucleic acid purification and is suitable for application in larger-scale clinical assays.
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Affiliation(s)
- Yongkang Dong
- Bio-manufacturing Engineering Laboratory, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China
| | - Bailiang Chen
- Bio-manufacturing Engineering Laboratory, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China
| | - Gangpei Cai
- Bio-manufacturing Engineering Laboratory, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China
| | - Fei Xu
- Bio-manufacturing Engineering Laboratory, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China
| | - Linzhi Li
- Bio-manufacturing Engineering Laboratory, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China
| | - Xiaoqi Cheng
- Bio-manufacturing Engineering Laboratory, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China
| | - Xiaolu Shi
- Microbiology Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
| | - Bo Peng
- Microbiology Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
| | - Shengli Mi
- Bio-manufacturing Engineering Laboratory, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China
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Campu A, Muresan I, Craciun AM, Vulpoi A, Cainap S, Astilean S, Focsan M. Innovative, Flexible, and Miniaturized Microfluidic Paper-Based Plasmonic Chip for Efficient Near-Infrared Metal Enhanced Fluorescence Biosensing and Imaging. ACS APPLIED MATERIALS & INTERFACES 2023; 15:55925-55937. [PMID: 37983540 DOI: 10.1021/acsami.3c08658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
The implementation of metal enhanced fluorescence (MEF) as an efficient detection tool, especially in the near-infrared region of the electromagnetic spectrum, is a rather new direction for diagnostic analytical technologies. In this context, we propose a novel microfluidic plasmonic design based on paper for efficient MEF detection of the "proof-of-concept" biotin-streptavidin recognition interaction. Our design made use of the benefits of gold nanobipyramids (AuBPs), considering the strong enhanced electromagnetic field present at their sharp tips, and filter paper to operate as a natural microfluidic channel due to excellent wicking abilities. The calligraphed plasmonic paper, obtained using a commercial pen filled with AuBPs, was integrated in a robust sandwich optically transparent polydimethylsiloxane chip, exhibiting portability and flexibility while preserving the chip's properties. To place the Alexa 680 fluorophore at an optimal distance from the nanobipyramid substrate, the human IgG-anti-IgG-conjugated biotin sandwich reaction was employed. Thus, upon the capture of Alexa 680-conjugated streptavidin by the biotinylated system, a 1.3-fold average enhancement of the fluorophore's emission was determined by bulk fluorescence measurements. However, the local enhancement factor was considerably higher with values spanning from 5 to 6.3, as proven by mapping the fluorescence emission under both re-scan microscopy and fluorescence lifetime imaging, endorsing the proposed chip's feasibility for bulk MEF biosensing as well as high-resolution MEF bioimaging. Finally, the versatility of our chip was demonstrated by adapting the biosensing protocol for cardiac troponin I biomarker detection, validated using 10 plasma samples collected from pediatric patients and corroborated with a conventional ELISA assay.
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Affiliation(s)
- Andreea Campu
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, 42 Treboniu Laurian Strada, Cluj-Napoca 400271, Romania
| | - Ilinca Muresan
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, 42 Treboniu Laurian Strada, Cluj-Napoca 400271, Romania
| | - Ana-Maria Craciun
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, 42 Treboniu Laurian Strada, Cluj-Napoca 400271, Romania
| | - Adriana Vulpoi
- Nanostructured Materials and Bio-Nano-Interfaces Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, 42 Treboniu Laurian Strada, Cluj-Napoca 400271, Romania
| | - Simona Cainap
- Department of Pediatric Cardiology, Pediatric Clinic No. 2, Emergency County Hospital for Children, Crisan No. 3-5, Cluj-Napoca 400124, Romania
- Department of Mother & Child, University of Medicine and Pharmacology "Iuliu Hatieganu", Louis Pasteur No. 4, Cluj-Napoca 400349, Romania
| | - Simion Astilean
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, 42 Treboniu Laurian Strada, Cluj-Napoca 400271, Romania
- Biomolecular Physics Department, Faculty of Physics, Babes-Bolyai University, 1 Kogalniceanu Strada, Cluj-Napoca 400084, Romania
| | - Monica Focsan
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, 42 Treboniu Laurian Strada, Cluj-Napoca 400271, Romania
- Biomolecular Physics Department, Faculty of Physics, Babes-Bolyai University, 1 Kogalniceanu Strada, Cluj-Napoca 400084, Romania
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11
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Mir TUG, Wani AK, Akhtar N, Katoch V, Shukla S, Kadam US, Hong JC. Advancing biological investigations using portable sensors for detection of sensitive samples. Heliyon 2023; 9:e22679. [PMID: 38089995 PMCID: PMC10711145 DOI: 10.1016/j.heliyon.2023.e22679] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 09/29/2023] [Accepted: 11/16/2023] [Indexed: 01/14/2024] Open
Abstract
Portable biosensors are emerged as powerful diagnostic tools for analyzing intricately complex biological samples. These biosensors offer sensitive detection capabilities by utilizing biomolecules such as proteins, nucleic acids, microbes or microbial products, antibodies, and enzymes. Their speed, accuracy, stability, specificity, and low cost make them indispensable in forensic investigations and criminal cases. Notably, portable biosensors have been developed to rapidly detect toxins, poisons, body fluids, and explosives; they have proven invaluable in forensic examinations of suspected samples, generating efficient results that enable effective and fair trials. One of the key advantages of portable biosensors is their ability to provide sensitive and non-destructive detection of forensic samples without requiring extensive sample preparation, thereby reducing the possibility of false results. This comprehensive review provides an overview of the current advancements in portable biosensors for the detection of sensitive materials, highlighting their significance in advancing investigations and enhancing sensitive sample detection capabilities.
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Affiliation(s)
- Tahir ul Gani Mir
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India
- State Forensic Science Laboratory, Srinagar, Jammu and Kashmir, 190001, India
| | - Atif Khurshid Wani
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Nahid Akhtar
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Vaidehi Katoch
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Saurabh Shukla
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Ulhas Sopanrao Kadam
- Division of Life Science and Division of Applied Life Science (BK21 Four), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea
| | - Jong Chan Hong
- Division of Life Science and Division of Applied Life Science (BK21 Four), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea
- Division of Plant Sciences, University of Missouri, Columbia, MO, 65211, USA
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12
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Draz MS, Dupouy D, Gijs MAM. Acoustofluidic large-scale mixing for enhanced microfluidic immunostaining for tissue diagnostics. LAB ON A CHIP 2023. [PMID: 37365861 DOI: 10.1039/d3lc00312d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
The usage of microfluidics for automated and fast immunoassays has gained a lot of interest in the last decades. This integration comes with certain challenges, like the reconciliation of laminar flow patterns of micro-scale systems with diffusion-limited mass transport. Several methods have been investigated to enhance microfluidic mixing in microsystems, including acoustic-based fluidic streaming. Here, we report both by numerical simulation and experiments on the beneficiary effect of acoustic agitation on the uniformity of immunostaining in large-size and thin microfluidic chambers. Moreover, we investigate by numerical simulation the impact of reducing the incubation times and the concentrations of the biochemical detection reagents on the obtained immunoassay signal. Finally, acoustofluidic mixing was successfully used to reduce by 80% the incubation time of the Her2 (human epidermal growth factor receptor 2) and CK (cytokeratins) biomarkers for the spatial immunostaining of breast cancer cell pellets, or reducing their concentration by 66% and achieving a higher signal-to-background ratio than comparable spatially resolved immunostaining with static incubation.
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Affiliation(s)
- Muaz S Draz
- Laboratory of Microsystems 2, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
- Lunaphore Technologies SA, CH-1131 Tolochenaz, Switzerland
| | - Diego Dupouy
- Lunaphore Technologies SA, CH-1131 Tolochenaz, Switzerland
| | - Martin A M Gijs
- Laboratory of Microsystems 2, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
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13
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Bazyar H. On the Application of Microfluidic-Based Technologies in Forensics: A Review. SENSORS (BASEL, SWITZERLAND) 2023; 23:5856. [PMID: 37447704 PMCID: PMC10346202 DOI: 10.3390/s23135856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 07/15/2023]
Abstract
Microfluidic technology is a powerful tool to enable the rapid, accurate, and on-site analysis of forensically relevant evidence on a crime scene. This review paper provides a summary on the application of this technology in various forensic investigation fields spanning from forensic serology and human identification to discriminating and analyzing diverse classes of drugs and explosives. Each aspect is further explained by providing a short summary on general forensic workflow and investigations for body fluid identification as well as through the analysis of drugs and explosives. Microfluidic technology, including fabrication methodologies, materials, and working modules, are touched upon. Finally, the current shortcomings on the implementation of the microfluidic technology in the forensic field are discussed along with the future perspectives.
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Affiliation(s)
- Hanieh Bazyar
- Engineering Thermodynamics, Process & Energy Department, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Leeghwaterstraat 39, 2628CB Delft, The Netherlands
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14
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Huang S, An Y, Xi B, Gong X, Chen Z, Shao S, Ge S, Zhang J, Zhang D, Xia N. Ultra-fast, sensitive and low-cost real-time PCR system for nucleic acid detection. LAB ON A CHIP 2023; 23:2611-2622. [PMID: 37158116 DOI: 10.1039/d3lc00174a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Nucleic acid detection directly identifies the presence of pathogenic microorganisms and has various advantages, such as high sensitivity, commendable specificity and a short window period, and has been widely used in many fields, such as early tumor screening, prenatal diagnosis and infectious disease detection. Real-time PCR (polymerase chain reaction) is the most commonly used method for nucleic acid detection in clinical practice, but it always takes about 1-3 hours, severely limiting its application in particular scenarios such as emergency testing, large-scale testing and on-site testing. To solve the time-consuming problem, a real-time PCR system based on multiple temperature zones was proposed, which realized the speed of temperature change of biological reagents from 2-4 °C s-1 to 13.33 °C s-1. The system integrates the advantages of fixed microchamber-type and microchannel-type amplification systems, including a microfluidic chip capable of fast heat transfer and a real-time PCR device with a temperature control strategy based on the temperature difference. The detection of HCMV biological samples using the real-time PCR system in this research took only 15 min, which was 75% shorter compared to the commercial qPCR instrument such as BIO-RAD, and the detection sensitivity remained essentially the same. The system could complete nucleic acid detection within 9 min under extreme conditions, characterized by fast detection speed and high sensitivity, providing a promising solution for ultra-fast nucleic acid detection.
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Affiliation(s)
- Shaolei Huang
- School of Public Health, Xiamen University, Fujian, China.
- Discipline of Intelligent Instrument and Equipment, Xiamen University, Fujian, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases (Xiamen University), Fujian, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Fujian, China
| | - Yiquan An
- School of Public Health, Xiamen University, Fujian, China.
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases (Xiamen University), Fujian, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Fujian, China
| | - Bangchao Xi
- School of Public Health, Xiamen University, Fujian, China.
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases (Xiamen University), Fujian, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Fujian, China
| | - Xianglian Gong
- School of Public Health, Xiamen University, Fujian, China.
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases (Xiamen University), Fujian, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Fujian, China
| | - Zhongfu Chen
- School of Public Health, Xiamen University, Fujian, China.
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases (Xiamen University), Fujian, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Fujian, China
| | - Shan Shao
- School of Public Health, Xiamen University, Fujian, China.
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases (Xiamen University), Fujian, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Fujian, China
| | - Shengxiang Ge
- School of Public Health, Xiamen University, Fujian, China.
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases (Xiamen University), Fujian, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Fujian, China
| | - Jun Zhang
- School of Public Health, Xiamen University, Fujian, China.
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases (Xiamen University), Fujian, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Fujian, China
| | - Dongxu Zhang
- School of Public Health, Xiamen University, Fujian, China.
- Discipline of Intelligent Instrument and Equipment, Xiamen University, Fujian, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases (Xiamen University), Fujian, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Fujian, China
| | - Ningshao Xia
- School of Public Health, Xiamen University, Fujian, China.
- Discipline of Intelligent Instrument and Equipment, Xiamen University, Fujian, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases (Xiamen University), Fujian, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Fujian, China
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15
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Turiello R, Nouwairi RL, Landers JP. Taking the microfluidic approach to nucleic acid analysis in forensics: Review and perspectives. Forensic Sci Int Genet 2023; 63:102824. [PMID: 36592574 DOI: 10.1016/j.fsigen.2022.102824] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 12/02/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
Forensic laboratories are universally acknowledged as being overburdened, underfunded, and in need of improved analytical methods to expedite investigations, decrease the costs associated with nucleic acid (NA) analysis, and perform human identification (HID) at the point of need (e.g., crime scene, booking station, etc.). In response, numerous research and development (R&D) efforts have resulted in microfluidic tools that automate portions of the forensic genetic workflow, including DNA extraction, amplification, and short tandem repeat (STR) typing. By the early 2000 s, reports from the National Institute of Justice (NIJ) anticipated that microfluidic 'swab-in-profile-out' systems would be available for use at the crime scene by 2015 and the FBI's 2010 'Rapid DNA' Initiative, approved by Congress in 2017, directed this effort by guiding the development and implementation of maturing systems. At present, few fully-automated microfluidic DNA technologies are commercially available for forensic HID and their adoption by agencies interested in identification has been limited. In practice, the integration of complex laboratory processes to produce one autonomous unit, along with the highly variable nature of forensic input samples, resulted in systems that are more expensive per sample and not comparable to gold-standard identification methods in terms of sensitivity, reproducibility, and multiplex capability. This Review and Perspective provides insight into the contributing factors to this outcome; namely, we focus on the complications associated with the tremendous undertaking that is developing a sample-in-answer-out platform for HID. For context, we also describe the intricate forensic landscape that contributes to a nuanced marketplace, not easily distilled down to cases of simple supply and demand. Moving forward and considering the trade-offs associated with developing methods to compete, sometimes directly, with conventional ones, we recommend a focus shift for microfluidics developers toward the creation of innovative solutions for emerging applications in the field to increase the bandwidth of the forensic investigative toolkit. Likewise, we urge case working personnel to reframe how they conceptualize the currently available Rapid DNA tools; rather than comparing these microfluidic methods to gold-standard procedures, take advantage of their rapid and integrated modes for those situations requiring expedited identifications in an informed manner.
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16
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Amir S, Arathi A, Reshma S, Mohanan PV. Microfluidic devices for the detection of disease-specific proteins and other macromolecules, disease modelling and drug development: A review. Int J Biol Macromol 2023; 235:123784. [PMID: 36822284 DOI: 10.1016/j.ijbiomac.2023.123784] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 02/15/2023] [Accepted: 02/16/2023] [Indexed: 02/25/2023]
Abstract
Microfluidics is a revolutionary technology that has promising applications in the biomedical field.Integrating microfluidic technology with the traditional assays unravels the innumerable possibilities for translational biomedical research. Microfluidics has the potential to build up a novel platform for diagnosis and therapy through precise manipulation of fluids and enhanced throughput functions. The developments in microfluidics-based devices for diagnostics have evolved in the last decade and have been established for their rapid, effective, accurate and economic advantages. The efficiency and sensitivity of such devices to detect disease-specific macromolecules like proteins and nucleic acids have made crucial impacts in disease diagnosis. The disease modelling using microfluidic systems provides a more prominent replication of the in vivo microenvironment and can be a better alternative for the existing disease models. These models can replicate critical microphysiology like the dynamic microenvironment, cellular interactions, and biophysical and biochemical cues. Microfluidics also provides a promising system for high throughput drug screening and delivery applications. However, microfluidics-based diagnostics still encounter related challenges in the reliability, real-time monitoring and reproducibility that circumvents this technology from being impacted in the healthcare industry. This review highlights the recent microfluidics developments for modelling and diagnosing common diseases, including cancer, neurological, cardiovascular, respiratory and autoimmune disorders, and its applications in drug development.
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Affiliation(s)
- S Amir
- Toxicology Division, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology (Govt. of India), Poojapura, Trivandrum 695 012, Kerala, India
| | - A Arathi
- Toxicology Division, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology (Govt. of India), Poojapura, Trivandrum 695 012, Kerala, India
| | - S Reshma
- Toxicology Division, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology (Govt. of India), Poojapura, Trivandrum 695 012, Kerala, India
| | - P V Mohanan
- Toxicology Division, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology (Govt. of India), Poojapura, Trivandrum 695 012, Kerala, India.
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17
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Kulkarni MB, Ayachit NH, Aminabhavi TM. Recent Advances in Microfluidics-Based Electrochemical Sensors for Foodborne Pathogen Detection. BIOSENSORS 2023; 13:246. [PMID: 36832012 PMCID: PMC9954504 DOI: 10.3390/bios13020246] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 05/22/2023]
Abstract
Using pathogen-infected food that can be unhygienic can result in severe diseases and an increase in mortality rate among humans. This may arise as a serious emergency problem if not appropriately restricted at this point of time. Thus, food science researchers are concerned with precaution, prevention, perception, and immunity to pathogenic bacteria. Expensive, elongated assessment time and the need for skilled personnel are some of the shortcomings of the existing conventional methods. Developing and investigating a rapid, low-cost, handy, miniature, and effective detection technology for pathogens is indispensable. In recent times, there has been a significant scope of interest for microfluidics-based three-electrode potentiostat sensing platforms, which have been extensively used for sustainable food safety exploration because of their progressively high selectivity and sensitivity. Meticulously, scholars have made noteworthy revolutions in signal enrichment tactics, measurable devices, and portable tools, which can be used as an allusion to food safety investigation. Additionally, a device for this purpose must incorporate simplistic working conditions, automation, and miniaturization. In order to meet the critical needs of food safety for on-site detection of pathogens, point-of-care testing (POCT) has to be introduced and integrated with microfluidic technology and electrochemical biosensors. This review critically discusses the recent literature, classification, difficulties, applications, and future directions of microfluidics-based electrochemical sensors for screening and detecting foodborne pathogens.
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Affiliation(s)
- Madhusudan B. Kulkarni
- Renalyx Healthcare Systems (P) Limited, Bengaluru 560004, Karnataka, India
- School of Electronics and Communication Engineering, KLE Technological University, Hubballi 580031, Karnataka, India
| | - Narasimha H. Ayachit
- School of Advanced Sciences, KLE Technological University, Hubballi 580031, Karnataka, India
| | - Tejraj M. Aminabhavi
- School of Advanced Sciences, KLE Technological University, Hubballi 580031, Karnataka, India
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18
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Bruijns B, Knotter J, Tiggelaar R. A Systematic Review on Commercially Available Integrated Systems for Forensic DNA Analysis. SENSORS (BASEL, SWITZERLAND) 2023; 23:1075. [PMID: 36772114 PMCID: PMC9919030 DOI: 10.3390/s23031075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 01/11/2023] [Accepted: 01/12/2023] [Indexed: 06/18/2023]
Abstract
This systematic review describes and discusses three commercially available integrated systems for forensic DNA analysis, i.e., ParaDNA, RapidHIT, and ANDE. A variety of aspects, such as performance, time-to-result, ease-of-use, portability, and costs (per analysis run) of these three (modified) rapid DNA analysis systems, are considered. Despite their advantages and developmental progress, major steps still have to be made before rapid systems can be broadly applied at crime scenes for full DNA profiling. Aspects in particular that need (further) improvement are portability, performance, the possibility to analyze a (wider) variety of (complex) forensic samples, and (cartridge) costs. Moreover, steps forward regarding ease-of-use and time-to-result will benefit the broader use of commercial rapid DNA systems. In fact, it would be a profit if rapid DNA systems could be used for full DNA profile generation as well as indicative analyses that can give direction to forensic investigators which will speed up investigations.
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Affiliation(s)
- Brigitte Bruijns
- Technologies for Criminal Investigations, Saxion University of Applied Sciences, M.H. Tromplaan 28, 7513 AB Enschede, The Netherlands
- Politieacademie, Arnhemseweg 348, 7334 AC Apeldoorn, The Netherlands
| | - Jaap Knotter
- Technologies for Criminal Investigations, Saxion University of Applied Sciences, M.H. Tromplaan 28, 7513 AB Enschede, The Netherlands
- Politieacademie, Arnhemseweg 348, 7334 AC Apeldoorn, The Netherlands
| | - Roald Tiggelaar
- NanoLab Cleanroom, MESA+ Institute, University of Twente, Drienerlolaan 5, 7500 AE Enschede, The Netherlands
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19
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Azeem MM, Shafa M, Aamir M, Zubair M, Souayeh B, Alam MW. Nucleotide detection mechanism and comparison based on low-dimensional materials: A review. Front Bioeng Biotechnol 2023; 11:1117871. [PMID: 36937765 PMCID: PMC10018150 DOI: 10.3389/fbioe.2023.1117871] [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: 12/07/2022] [Accepted: 02/13/2023] [Indexed: 03/06/2023] Open
Abstract
The recent pandemic has led to the fabrication of new nucleic acid sensors that can detect infinitesimal limits immediately and effectively. Therefore, various techniques have been demonstrated using low-dimensional materials that exhibit ultrahigh detection and accuracy. Numerous detection approaches have been reported, and new methods for impulse sensing are being explored. All ongoing research converges at one unique point, that is, an impetus: the enhanced limit of detection of sensors. There are several reviews on the detection of viruses and other proteins related to disease control point of care; however, to the best of our knowledge, none summarizes the various nucleotide sensors and describes their limits of detection and mechanisms. To understand the far-reaching impact of this discipline, we briefly discussed conventional and nanomaterial-based sensors, and then proposed the feature prospects of these devices. Two types of sensing mechanisms were further divided into their sub-branches: polymerase chain reaction and photospectrometric-based sensors. The nanomaterial-based sensor was further subdivided into optical and electrical sensors. The optical sensors included fluorescence (FL), surface plasmon resonance (SPR), colorimetric, and surface-enhanced Raman scattering (SERS), while electrical sensors included electrochemical luminescence (ECL), microfluidic chip, and field-effect transistor (FET). A synopsis of sensing materials, mechanisms, detection limits, and ranges has been provided. The sensing mechanism and materials used were discussed for each category in terms of length, collectively forming a fusing platform to highlight the ultrahigh detection technique of nucleotide sensors. We discussed potential trends in improving the fabrication of nucleotide nanosensors based on low-dimensional materials. In this area, particular aspects, including sensitivity, detection mechanism, stability, and challenges, were addressed. The optimization of the sensing performance and selection of the best sensor were concluded. Recent trends in the atomic-scale simulation of the development of Deoxyribonucleic acid (DNA) sensors using 2D materials were highlighted. A critical overview of the challenges and opportunities of deoxyribonucleic acid sensors was explored, and progress made in deoxyribonucleic acid detection over the past decade with a family of deoxyribonucleic acid sensors was described. Areas in which further research is needed were included in the future scope.
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Affiliation(s)
- M. Mustafa Azeem
- Department of Civil, Architectural, and Environmental Engineering, Missouri University of Science and Technology, Rolla, MO, United States
- *Correspondence: M. Mustafa Azeem, ; Muhammad Aamir,
| | - Muhammad Shafa
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Devices, Kunming University, Kunming, Yunnan, China
| | - Muhammad Aamir
- Department of Basic Science, Deanship of Preparatory Year, King Faisal University, Hofuf, Saudi Arabia
- *Correspondence: M. Mustafa Azeem, ; Muhammad Aamir,
| | - Muhammad Zubair
- Mechanical and Nuclear Engineering Department, University of Sharjah, Sharjah, United Arab Emirates
| | - Basma Souayeh
- Department of Physics, College of Science, King Faisal University, Al Ahsa, Saudi Arabia
| | - Mir Waqas Alam
- Department of Physics, College of Science, King Faisal University, Al Ahsa, Saudi Arabia
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20
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Sanchez D, Hawkins G, Hinnen HS, Day A, Woolley AT, Nordin GP, Munro T. 3D printing-enabled uniform temperature distributions in microfluidic devices. LAB ON A CHIP 2022; 22:4393-4408. [PMID: 36282069 PMCID: PMC9643673 DOI: 10.1039/d2lc00612j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Many microfluidic processes rely heavily on precise temperature control. Though internally-contained heaters have been developed using traditional fabrication methods, they are limited in their ability to isothermally heat a precisely defined volume. Advances in 3D printing have led to high resolution printers capable of using bio-compatible materials and achieving geometry resolutions near 20 μm. 3D printing's ability to create arbitrary 3D structures with an arbitrary 3D orientation as opposed to traditional microfluidic fabrication methods enables new three-dimensional heater geometries to be created. As examples, we demonstrate three new 3D heater geometries: a non-planar serpentine channel, a tapered helical channel, and a diamond channel. These new geometries are shown through finite element simulation to isothermally heat microfluidic channels of cross section 200 μm × 200 μm with a 0.1 °C temperature difference along up to 91% of a 10 mm length, compared to designs from the literature that are only able to have that same temperature distance over several μms. Finally, a set of design rules to create isothermal regions in 3D based on the desired temperature, heater pitch, heater gradient, and radial space around a target volume are detailed.
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Affiliation(s)
- Derek Sanchez
- Department of Mechanical Engineering, Brigham Young University, Provo, UT, USA.
| | - Garrett Hawkins
- Department of Mechanical Engineering, Brigham Young University, Provo, UT, USA.
| | - Hunter S Hinnen
- Department of Electrical and Computer Engineering, Brigham Young University, Provo, UT, USA
| | - Alison Day
- Department of Mechanical Engineering, Brigham Young University, Provo, UT, USA.
| | - Adam T Woolley
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, USA
| | - Gregory P Nordin
- Department of Electrical and Computer Engineering, Brigham Young University, Provo, UT, USA
| | - Troy Munro
- Department of Mechanical Engineering, Brigham Young University, Provo, UT, USA.
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21
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Lerin-Morales KM, Olguín LF, Mateo-Martí E, Colín-García M. Prebiotic Chemistry Experiments Using Microfluidic Devices. Life (Basel) 2022; 12:1665. [PMID: 36295100 PMCID: PMC9605377 DOI: 10.3390/life12101665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/15/2022] [Accepted: 10/18/2022] [Indexed: 11/16/2022] Open
Abstract
Microfluidic devices are small tools mostly consisting of one or more channels, with dimensions between one and hundreds of microns, where small volumes of fluids are manipulated. They have extensive use in the biomedical and chemical fields; however, in prebiotic chemistry, they only have been employed recently. In prebiotic chemistry, just three types of microfluidic devices have been used: the first ones are Y-form devices with laminar co-flow, used to study the precipitation of minerals in hydrothermal vents systems; the second ones are microdroplet devices that can form small droplets capable of mimic cellular compartmentalization; and the last ones are devices with microchambers that recreate the microenvironment inside rock pores under hydrothermal conditions. In this review, we summarized the experiments in the field of prebiotic chemistry that employed microfluidic devices. The main idea is to incentivize their use and discuss their potential to perform novel experiments that could contribute to unraveling some prebiotic chemistry questions.
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Affiliation(s)
| | - Luis F. Olguín
- Laboratorio de Biofisicoquímica, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - Eva Mateo-Martí
- Centro de Astrobiología (CAB), CSIC-INTA, Carretera de Ajalvir Km 4, Torrejón de Ardoz, 28850 Madrid, Spain
| | - María Colín-García
- Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
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22
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Lee J, Kim M. Polymeric Microfluidic Devices Fabricated Using Epoxy Resin for Chemically Demanding and Day-Long Experiments. BIOSENSORS 2022; 12:838. [PMID: 36290975 PMCID: PMC9599855 DOI: 10.3390/bios12100838] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/30/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Polydimethylsiloxane (PDMS) is a widely used material in laboratories for fabricating microfluidic devices with a rapid and reproducible prototypingability, owing to its inherent properties (e.g., flexibility, air permeability, and transparency). However, the PDMS channel is easily deformed under pressures applied to generate flows because of its elasticity, which can affect the robustness of experiments. In addition, air permeability of PDMS causes the pervaporation of water, and its porous structure absorbs oil and even small hydrophobic molecules, rendering it inappropriate for chemically demanding or day-long experiments. In this study, we develop a rapid and reproducible fabrication method for polymer-based rigid microfluidic devices, using epoxy resin that can overcome the limitations of PDMS channels, which are structurally and chemically robust. We first optimize a high-resolution fabrication protocol to achieve convenient and repeatable prototyping of polymeric devices via epoxy casting using PDMS soft molds. In addition, we compare the velocity changes in PDMS microchannels by tracking fluorescent particles in various flows (~133 μL/min) to demonstrate the structural robustness of the polymeric device. Furthermore, by comparing the adsorption of fluorescent hydrophobic chemicals and the pervaporation through channel walls, we demonstrate the excellent chemical resistance of the polymeric device and its suitability for day-long experiments. The rigid polymeric device can facilitate lab-on-chip research and enable various applications, such as high-performance liquid chromatography, anaerobic bacterial culture, and polymerase chain reaction, which require chemically or physically demanding experiments.
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Affiliation(s)
- Jaeseok Lee
- Department of Mechanical System Engineering, Kumoh National Institute of Technology, Gumi 39177, Korea
- Department of Aeronautics, Mechanical and Electronic Convergence Engineering, Kumoh National Institute of Technology, Gumi 39177, Korea
| | - Minseok Kim
- Department of Mechanical System Engineering, Kumoh National Institute of Technology, Gumi 39177, Korea
- Department of Aeronautics, Mechanical and Electronic Convergence Engineering, Kumoh National Institute of Technology, Gumi 39177, Korea
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23
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Huang H, Huang K, Sun Y, Luo D, Wang M, Chen T, Li M, Duan J, Huang L, Dong C. A Digital Microfluidic RT-qPCR Platform for Multiple Detections of Respiratory Pathogens. MICROMACHINES 2022; 13:mi13101650. [PMID: 36296002 PMCID: PMC9611846 DOI: 10.3390/mi13101650] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/24/2022] [Accepted: 09/27/2022] [Indexed: 05/30/2023]
Abstract
The coronavirus disease 2019 pandemic has spread worldwide and caused more than six million deaths globally. Therefore, a timely and accurate diagnosis method is of pivotal importance for controlling the dissemination and expansions. Nucleic acid detection by the reverse transcription-polymerase chain reaction (RT-PCR) method generally requires centralized diagnosis laboratories and skilled operators, significantly restricting its use in rural areas and field settings. The digital microfluidic (DMF) technique provides a better option for simultaneous detections of multiple pathogens with fewer specimens and easy operation. In this study, we developed a novel digital microfluidic RT-qPCR platform for multiple detections of respiratory pathogens. This method can simultaneously detect eleven respiratory pathogens, namely, mycoplasma pneumoniae (MP), chlamydophila pneumoniae (CP), streptococcus pneumoniae (SP), human respiratory syncytial virus A (RSVA), human adenovirus (ADV), human coronavirus (HKU1), human coronavirus 229E (HCoV-229E), human metapneumovirus (HMPV), severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), influenza A virus (FLUA) and influenza B virus (FLUB). The diagnostic performance was evaluated using positive plasmids samples and clinical specimens compared with off-chip individual RT-PCR testing. The results showed that the limit of detections was around 12 to 150 copies per test. The true positive rate, true negative rate, positive predictive value, negative predictive value, and accuracy of DMF on-chip method were 93.33%, 100%, 100%, 99.56%, and 99.85%, respectively, as validated by the off-chip RT-qPCR counterpart. Collectively, this study reported a cost-effective, high sensitivity and specificity on-chip DMF RT-qPCR system for detecting multiple respiratory pathogens, which will greatly contribute to timely and effective clinical management of respiratory infections in medical resource-limited settings.
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Affiliation(s)
- Huitao Huang
- Zhuhai Center for Disease Control and Prevention, Zhuhai 519087, China
| | - Kaisong Huang
- Zhuhai Center for Disease Control and Prevention, Zhuhai 519087, China
| | - Yun Sun
- Digifluidic Biotech Ltd., Zhuhai 519000, China
| | - Dasheng Luo
- Digifluidic Biotech Ltd., Zhuhai 519000, China
| | - Min Wang
- Digifluidic Biotech Ltd., Zhuhai 519000, China
| | - Tianlan Chen
- Digifluidic Biotech Ltd., Zhuhai 519000, China
- Guangzhou Nansha IT Park Postdoctoral Programme, Guangzhou 511466, China
| | - Mingzhong Li
- State Key Laboratory of Analog and Mixed-Signal VLSI, University of Macau, Macao 999078, China
| | - Junwei Duan
- College of Information Science and Technology, Jinan University, Guangzhou 510632, China
| | - Liqun Huang
- Zhuhai Center for Disease Control and Prevention, Zhuhai 519087, China
| | - Cheng Dong
- School of Intelligent Systems Science and Engineering/JNU-Industry School of Artificial Intelligence, Jinan University, Zhuhai 519000, China
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24
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Nouwairi RL, Cunha LL, Turiello R, Scott O, Hickey J, Thomson S, Knowles S, Chapman JD, Landers JP. Ultra-rapid real-time microfluidic RT-PCR instrument for nucleic acid analysis. LAB ON A CHIP 2022; 22:3424-3435. [PMID: 35959772 PMCID: PMC9474628 DOI: 10.1039/d2lc00495j] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The polymerase chain reaction (PCR) is paramount in nucleic acid amplification testing, and for many assays, the use of PCR or qPCR is considered the 'gold standard'. While instrumentation for executing PCR has advanced over the last two decades, a growing interest in point-of-need testing has highlighted the deficit that exists for 'rapid PCR' systems. Here, we describe a field-forward prototype instrument capable of ultra-fast thermal cycling for real-time PCR amplification of DNA and RNA. The custom-designed, injection-molded microfluidic chips interface with a novel mechatronic system to complete 40 cycles of real-time PCR in under 10 minutes, an 84% reduction in time compared to a standard 50 minute assay. Such rapid amplification is enabled by two thermoelectric Peltiers capable of efficiently heating and cooling the sample at 12 and 10 °C s-1, respectively. Judicious selection and strategic placement of the thermal cyclers and fluorescence detector relative to the microchip enable synchronized thermal cycling and fluorescence monitoring, further reducing time-to-result. Robust amplification and detection of DNA and RNA targets empowers laboratories to achieve rapid, actionable information in endless applications.
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Affiliation(s)
| | | | | | | | | | | | | | | | - James P Landers
- University of Virginia, USA.
- MicroGEM International, PLC, USA
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25
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Basso CR, Yamakawa AC, Cruz TF, Pedrosa VA, Magro M, Vianello F, Araújo Júnior JP. Colorimetric Kit for Rapid Porcine Circovirus 2 (PCV-2) Diagnosis. Pathogens 2022; 11:570. [PMID: 35631091 PMCID: PMC9147935 DOI: 10.3390/pathogens11050570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/04/2022] [Accepted: 05/06/2022] [Indexed: 02/05/2023] Open
Abstract
The aim of the current study is to present a low-cost and easy-to-interpret colorimetric kit used to diagnose porcine circovirus 2 (PCV-2) to the naked eye, without any specific equipment. The aforementioned kit used as base hybrid nanoparticles resulting from the merge of surface active maghemite nanoparticles and gold nanoparticles, based on the deposition of specific PCV-2 antibodies on their surface through covalent bonds. In total, 10 negative and 40 positive samples (≥102 DNA copies/µL of serum) confirmed by qPCR technique were tested. PCV-1 virus, adenovirus, and parvovirus samples were tested as interferents to rule out likely false-positive results. Positive samples showed purple color when they were added to the complex, whereas negative samples showed red color; they were visible to the naked eye. The entire color-change process took place approximately 1 min after the analyzed samples were added to the complex. They were tested at different dilutions, namely pure, 1:10, 1:100, 1:1000, and 1:10,000. Localized surface plasmon resonance (LSPR) and transmission electron microscopy (TEM) images were generated to validate the experiment. This new real-time PCV-2 diagnostic methodology emerged as simple and economic alternative to traditional tests since the final price of the kit is USD 4.00.
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Affiliation(s)
- Caroline Rodrigues Basso
- Biotechnology Institute, São Paulo State University, Botucatu 18607-440, SP, Brazil; (A.C.Y.); (T.F.C.); (J.P.A.J.)
| | - Ana Carolina Yamakawa
- Biotechnology Institute, São Paulo State University, Botucatu 18607-440, SP, Brazil; (A.C.Y.); (T.F.C.); (J.P.A.J.)
| | - Taís Fukuta Cruz
- Biotechnology Institute, São Paulo State University, Botucatu 18607-440, SP, Brazil; (A.C.Y.); (T.F.C.); (J.P.A.J.)
- Chemical and Biological Sciences Department, Bioscience Institute, São Paulo State University, Botucatu 18618-000, SP, Brazil;
| | - Valber Albuquerque Pedrosa
- Chemical and Biological Sciences Department, Bioscience Institute, São Paulo State University, Botucatu 18618-000, SP, Brazil;
| | - Massimiliano Magro
- Comparative Biomedicine and Food Science Department, University of Padua, 35020 Legnaro, Italy; (M.M.); (F.V.)
| | - Fabio Vianello
- Comparative Biomedicine and Food Science Department, University of Padua, 35020 Legnaro, Italy; (M.M.); (F.V.)
| | - João Pessoa Araújo Júnior
- Biotechnology Institute, São Paulo State University, Botucatu 18607-440, SP, Brazil; (A.C.Y.); (T.F.C.); (J.P.A.J.)
- Chemical and Biological Sciences Department, Bioscience Institute, São Paulo State University, Botucatu 18618-000, SP, Brazil;
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26
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Schellhammer SK, Hudson BC, Cox JO, Dawson Green T. Alternative direct‐to‐amplification sperm cell lysis techniques for sexual assault sample processing. J Forensic Sci 2022; 67:1668-1678. [PMID: 35285573 PMCID: PMC9314082 DOI: 10.1111/1556-4029.15027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/13/2022] [Accepted: 02/28/2022] [Indexed: 11/26/2022]
Abstract
The prevalence of sexual assault cases and increasingly sensitive DNA analysis methods have resulted in sexual assault kit backlogs in the United States. Although traditional DNA extraction and purification utilizing detergents, proteinase K, and DTT have been the primary technique for lysing sperm cell fractions from these samples, it is labor‐intensive and inefficient regarding time and sperm DNA recovery – hindering the ability of forensic analysts to keep pace with evidence submissions. Thus, this study examined seven alternative sperm cell lysis techniques to develop a method that could efficiently lyse sperm and consistently generate high‐quality profiles while also reducing time, labor, and cost requirements. Microscopic examination of lysates indicated only Casework Direct and alkaline techniques could lyse all spermatozoa within samples, while quantification results demonstrated all methods performed comparably to the control method of forensicGEM™ Sperm (p > 0.06). Amplification with 0.25 ng DNA revealed that unpurified lysates from Casework Direct, alkaline, and NP‐40 techniques produced DNA profiles with acceptable mean STR peak heights and interlocus balance, both of which were similar to or better than the control. Overall, this study demonstrated the ability of Casework Direct, alkaline, and NP‐40 methods to efficiently lyse spermatozoa and provide high‐quality STR profiles despite the absence of a purification step. Ultimately, based on the data reported herein, alkaline lysis is the recommended alternative sperm lysis approach given its ability to generate high‐quality profiles, save time, and decrease the cost per reaction when compared to traditional sperm cell lysis methods.
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Affiliation(s)
- Sarah K. Schellhammer
- Department of Forensic Science Virginia Commonwealth University Richmond Virginia USA
| | - Brittany C. Hudson
- Department of Forensic Science Virginia Commonwealth University Richmond Virginia USA
- Integrative Life Sciences Virginia Commonwealth University Richmond Virginia USA
| | - Jordan O. Cox
- Department of Forensic Science Virginia Commonwealth University Richmond Virginia USA
| | - Tracey Dawson Green
- Department of Forensic Science Virginia Commonwealth University Richmond Virginia USA
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27
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Kuang S, Singh NM, Wu Y, Shen Y, Ren W, Tu L, Yong KT, Song P. Role of microfluidics in accelerating new space missions. BIOMICROFLUIDICS 2022; 16:021503. [PMID: 35497325 PMCID: PMC9033306 DOI: 10.1063/5.0079819] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 03/31/2022] [Indexed: 06/14/2023]
Abstract
Numerous revolutionary space missions have been initiated and planned for the following decades, including plans for novel spacecraft, exploration of the deep universe, and long duration manned space trips. Compared with space missions conducted over the past 50 years, current missions have features of spacecraft miniaturization, a faster task cycle, farther destinations, braver goals, and higher levels of precision. Tasks are becoming technically more complex and challenging, but also more accessible via commercial space activities. Remarkably, microfluidics has proven impactful in newly conceived space missions. In this review, we focus on recent advances in space microfluidic technologies and their impact on the state-of-the-art space missions. We discuss how micro-sized fluid and microfluidic instruments behave in space conditions, based on hydrodynamic theories. We draw on analyses outlining the reasons why microfluidic components and operations have become crucial in recent missions by categorically investigating a series of successful space missions integrated with microfluidic technologies. We present a comprehensive technical analysis on the recently developed in-space microfluidic applications such as the lab-on-a-CubeSat, healthcare for manned space missions, evaluation and reconstruction of the environment on celestial bodies, in-space manufacturing of microfluidic devices, and development of fluid-based micro-thrusters. The discussions in this review provide insights on microfluidic technologies that hold considerable promise for the upcoming space missions, and also outline how in-space conditions present a new perspective to the microfluidics field.
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Affiliation(s)
| | - Nishtha Manish Singh
- Critical Analytics for Manufacturing Personalized-Medicine, Singapore-MIT Alliance for Research and Technology, CREATE, Singapore
| | - Yichao Wu
- College of Resources & Environment of Huazhong Agricultural University, No.1, Shizishan Street, Wuhan, 430070, People's Republic of China
| | - Yan Shen
- School of Aeronautics and Astronautics, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou, 510275, People's Republic of China
| | - Weijia Ren
- SPACETY, No.9 Dengzhuang South Road, Haidian District, Beijing, People's Republic of China
| | - Liangcheng Tu
- School of Physics and Astronomy, Sun Yat-sen University (Zhuhai Campus), Zhuhai 519082, People's Republic of China
| | - Ken-Tye Yong
- Faculty of Engineering, School of Biomedical Engineering, University of Sydney, Sydney, NSW 2006, Australia
| | - Peiyi Song
- MOE Key Laboratory of Fundamental Physical Quantities Measurement & Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
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28
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Sakaguchi K, Akimoto K, Takaira M, Tanaka RI, Shimizu T, Umezu S. Cell-Based Microfluidic Device Utilizing Cell Sheet Technology. CYBORG AND BIONIC SYSTEMS 2022; 2022:9758187. [PMID: 36285307 PMCID: PMC9494697 DOI: 10.34133/2022/9758187] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 01/03/2022] [Indexed: 11/15/2022] Open
Abstract
The development of microelectromechanical systems has resulted in the rapid development of polydimethylpolysiloxane (PDMS) microfluidic devices for drug screening models. Various cell functions, such as the response of endothelial cells to fluids, have been elucidated using microfluidic devices. Additionally, organ-on-a-chip systems that include organs that are important for biological circulation, such as the heart, liver, pancreas, kidneys, and brain, have been developed. These organs realize the biological circulation system in a manner that cannot be reproduced by artificial organs; however, the flow channels between the organs are often artificially created by PDMS. In this study, we developed a microfluidic device consisting only of cells, by combining cell sheet technology with microtitanium wires. Microwires were placed between stacked fibroblast cell sheets, and the cell sheets adhered to each other, after which the microwires were removed leaving a luminal structure with a size approximately equal to the arteriolar size. The lumen structure was constructed using wires with diameters of 50, 100, 150, and 200 μm, which were approximations of the arteriole diameters. Furthermore, using a perfusion device, we successfully perfused the luminal structure created inside the cell sheets. The results revealed that a culture solution can be supplied to a cell sheet with a very high cell density. The biofabrication technology proposed in this study can contribute to the development of organ-on-a-chip systems.
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Affiliation(s)
- Katsuhisa Sakaguchi
- Department of Integrative Bioscience and Biomedical Engineering, Graduate School of Advanced Science and Engineering, TWIns, Waseda University, 2-2 Wakamatsu-Cho, Shinju-Ku, Tokyo 162-8480, Japan
| | - Kei Akimoto
- Department of Modern Mechanical Engineering, Graduate School of Creative Science and Engineering, Waseda University, 1-104 Totsuka-Cho, Shinju-Ku, Tokyo 169-8555, Japan
| | - Masanori Takaira
- Department of Modern Mechanical Engineering, Graduate School of Creative Science and Engineering, Waseda University, 1-104 Totsuka-Cho, Shinju-Ku, Tokyo 169-8555, Japan
| | - Ryu-ichiro Tanaka
- Institute of Advanced Biomedical Engineering and Science, TWIns, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinju-Ku, Tokyo 162-8666, Japan
| | - Tatsuya Shimizu
- Institute of Advanced Biomedical Engineering and Science, TWIns, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinju-Ku, Tokyo 162-8666, Japan
| | - Shinjiro Umezu
- Department of Integrative Bioscience and Biomedical Engineering, Graduate School of Advanced Science and Engineering, TWIns, Waseda University, 2-2 Wakamatsu-Cho, Shinju-Ku, Tokyo 162-8480, Japan
- Department of Modern Mechanical Engineering, Graduate School of Creative Science and Engineering, Waseda University, 1-104 Totsuka-Cho, Shinju-Ku, Tokyo 169-8555, Japan
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29
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Zheng J, Cole T, Zhang Y, Kim J, Tang SY. Exploiting machine learning for bestowing intelligence to microfluidics. Biosens Bioelectron 2021; 194:113666. [PMID: 34600338 DOI: 10.1016/j.bios.2021.113666] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 09/18/2021] [Accepted: 09/21/2021] [Indexed: 02/06/2023]
Abstract
Intelligent microfluidics is an emerging cross-discipline research area formed by combining microfluidics with machine learning. It uses the advantages of microfluidics, such as high throughput and controllability, and the powerful data processing capabilities of machine learning, resulting in improved systems in biotechnology and chemistry. Compared to traditional microfluidics using manual analysis methods, intelligent microfluidics needs less human intervention, and results in a more user-friendly experience with faster processing. There is a paucity of literature reviewing this burgeoning and highly promising cross-discipline. Therefore, we herein comprehensively and systematically summarize several aspects of microfluidic applications enabled by machine learning. We list the types of microfluidics used in intelligent microfluidic applications over the last five years, as well as the machine learning algorithms and the hardware used for training. We also present the most recent advances in key technologies, developments, challenges, and the emerging opportunities created by intelligent microfluidics.
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Affiliation(s)
- Jiahao Zheng
- Department of Electronic, Electrical and Systems Engineering, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Tim Cole
- Department of Electronic, Electrical and Systems Engineering, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Yuxin Zhang
- Department of Electronic, Electrical and Systems Engineering, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Jeeson Kim
- Department of Intelligent Mechatronics Engineering, Sejong University, Seoul, 05006, South Korea.
| | - Shi-Yang Tang
- Department of Electronic, Electrical and Systems Engineering, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
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30
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Choe SW, Kim B, Kim M. Progress of Microfluidic Continuous Separation Techniques for Micro-/Nanoscale Bioparticles. BIOSENSORS 2021; 11:464. [PMID: 34821680 PMCID: PMC8615634 DOI: 10.3390/bios11110464] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/07/2021] [Accepted: 11/12/2021] [Indexed: 05/03/2023]
Abstract
Separation of micro- and nano-sized biological particles, such as cells, proteins, and nucleotides, is at the heart of most biochemical sensing/analysis, including in vitro biosensing, diagnostics, drug development, proteomics, and genomics. However, most of the conventional particle separation techniques are based on membrane filtration techniques, whose efficiency is limited by membrane characteristics, such as pore size, porosity, surface charge density, or biocompatibility, which results in a reduction in the separation efficiency of bioparticles of various sizes and types. In addition, since other conventional separation methods, such as centrifugation, chromatography, and precipitation, are difficult to perform in a continuous manner, requiring multiple preparation steps with a relatively large minimum sample volume is necessary for stable bioprocessing. Recently, microfluidic engineering enables more efficient separation in a continuous flow with rapid processing of small volumes of rare biological samples, such as DNA, proteins, viruses, exosomes, and even cells. In this paper, we present a comprehensive review of the recent advances in microfluidic separation of micro-/nano-sized bioparticles by summarizing the physical principles behind the separation system and practical examples of biomedical applications.
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Affiliation(s)
- Se-woon Choe
- Department of Medical IT Convergence Engineering, Kumoh National Institute of Technology, Gumi 39253, Korea;
- Department of IT Convergence Engineering, Kumoh National Institute of Technology, Gumi 39253, Korea
| | - Bumjoo Kim
- Department of Mechanical Engineering and Automotive Engineering, Kongju National University, Cheonan 1223-24, Korea;
- Department of Future Convergence Engineering, Kongju National University, Cheonan 1223-24, Korea
| | - Minseok Kim
- Department of Mechanical System Engineering, Kumoh National Institute of Technology, Gumi 39177, Korea
- Department of Aeronautics, Mechanical and Electronic Convergence Engineering, Kumoh National Institute of Technology, Gumi 39177, Korea
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31
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Zinc-Finger-Protein-Based Microfluidic Electrophoretic Mobility Reversal Assay for Quantitative Double-Stranded DNA Analysis. BIOCHIP JOURNAL 2021. [DOI: 10.1007/s13206-021-00038-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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32
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Balakrishnan SG, Ahmad MR, Koloor SSR, Petrů M. Separation of ctDNA by superparamagnetic bead particles in microfluidic platform for early cancer detection. J Adv Res 2021; 33:109-116. [PMID: 34603782 PMCID: PMC8463959 DOI: 10.1016/j.jare.2021.03.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 01/28/2021] [Accepted: 03/01/2021] [Indexed: 11/17/2022] Open
Abstract
Introduction Conventional biopsy, based on extraction from a tumor of a solid tissue specimen requiring needles, endoscopic devices, excision or surgery, is at risk of infection, internal bleeding or prolonged recovery. A non-invasive liquid biopsy is one of the greatest axiomatic consequences of the identification of circulating tumor DNA (ctDNA) as a replaceable surgical tumor bioQpsy technique. Most of the literature studies thus far presented ctDNA detection at almost final stage III or IV of cancer, where the treatment option or cancer management is nearly impossible for diagnosis. Objective Hence, this paper aims to present a simulation study of extraction and separation of ctDNA from the blood plasma of cancer patients of stage I and II by superparamagnetic (SPM) bead particles in a microfluidic platform for early and effective cancer detection. Method The extraction of ctDNA is based on microfiltration of particle size to filter some impurities and thrombocytes plasma, while the separation of ctDNA is based on magnetic manipulation to high yield that can be used for the upstream process. Result Based on the simulation results, an average of 5.7 ng of ctDNA was separated efficiently for every 10 µL blood plasma input and this can be used for early analysis of cancer management. The particle tracing module from COMSOL Multiphysics traced ctDNA with 65.57% of sensitivity and 95.38% of specificity. Conclusion The findings demonstrate the ease of use and versatility of a microfluidics platform and SPM bead particles in clinical research related to the preparation of biological samples. As a sample preparation stage for early analysis and cancer diagnosis, the extraction and separation of ctDNA is most important, so precision medicine can be administered.
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Affiliation(s)
- Samla Gauri Balakrishnan
- Division of Control and Mechatronics Engineering, School of Electrical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Mohd Ridzuan Ahmad
- Division of Control and Mechatronics Engineering, School of Electrical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Seyed Saeid Rahimian Koloor
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentska 2, 461 17 Liberec, Czech Republic
| | - Michal Petrů
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentska 2, 461 17 Liberec, Czech Republic
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33
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Li M, Yin F, Song L, Mao X, Li F, Fan C, Zuo X, Xia Q. Nucleic Acid Tests for Clinical Translation. Chem Rev 2021; 121:10469-10558. [PMID: 34254782 DOI: 10.1021/acs.chemrev.1c00241] [Citation(s) in RCA: 89] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Nucleic acids, including deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), are natural biopolymers composed of nucleotides that store, transmit, and express genetic information. Overexpressed or underexpressed as well as mutated nucleic acids have been implicated in many diseases. Therefore, nucleic acid tests (NATs) are extremely important. Inspired by intracellular DNA replication and RNA transcription, in vitro NATs have been extensively developed to improve the detection specificity, sensitivity, and simplicity. The principles of NATs can be in general classified into three categories: nucleic acid hybridization, thermal-cycle or isothermal amplification, and signal amplification. Driven by pressing needs in clinical diagnosis and prevention of infectious diseases, NATs have evolved to be a rapidly advancing field. During the past ten years, an explosive increase of research interest in both basic research and clinical translation has been witnessed. In this review, we aim to provide comprehensive coverage of the progress to analyze nucleic acids, use nucleic acids as recognition probes, construct detection devices based on nucleic acids, and utilize nucleic acids in clinical diagnosis and other important fields. We also discuss the new frontiers in the field and the challenges to be addressed.
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Affiliation(s)
- Min Li
- Institute of Molecular Medicine, Department of Liver Surgery, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Fangfei Yin
- Institute of Molecular Medicine, Department of Liver Surgery, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Lu Song
- Institute of Molecular Medicine, Department of Liver Surgery, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,Division of Physical Biology, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Xiuhai Mao
- Institute of Molecular Medicine, Department of Liver Surgery, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Fan Li
- Institute of Molecular Medicine, Department of Liver Surgery, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Chunhai Fan
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiaolei Zuo
- Institute of Molecular Medicine, Department of Liver Surgery, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Qiang Xia
- Institute of Molecular Medicine, Department of Liver Surgery, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
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Integration of microfluidic sample preparation with PCR detection to investigate the effects of simultaneous DNA-Inhibitor separation and DNA solution exchange. Anal Chim Acta 2021; 1160:338449. [PMID: 33894958 DOI: 10.1016/j.aca.2021.338449] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 02/23/2021] [Accepted: 03/21/2021] [Indexed: 11/20/2022]
Abstract
In this paper, we applied a curved-channel microfluidic device to separate DNA from PCR-inhibitor-containing water and simultaneously wash them into clean water for detection using a portable PCR thermocycler. Environmental DNA (eDNA) sampling has become an effective surveying approach for detecting rare organisms. However, low concentration eDNA molecules may be masked by PCR inhibitors during amplification and detection, increasing the risk of false negatives. Therefore, technologies for on-site DNA separation and washing are urgently needed. Our device consisted of a half-circle microchannel with a DNA-inhibitor sample inlet, a clean buffer inlet, and multiple outlets. By using the flow-induced inertial forces, 10 μm DNA-conjugated microparticles were focused at the inner-wall of the curved microchannel while separation from 1 μm inhibitor-conjugated microparticles and DNA washing were achieved simultaneously with the Dean flow. We achieved singleplex focusing, isolation and washing of 10 μm particles at an efficiency of 94.5 ± 2.0%. In duplex experiments with 1 μm and 10 μm particles, larger particles were washed with an efficiency of 92.1 ± 1.6% and a purity of 79 ± 2%. By surface-functionalizing the microparticles with affinity groups against Atlantic salmon DNA and humic acid (HA), and processing samples of various concentrations in our device, we achieved an effective purification and detection of DNA molecules using the portable PCR thermocycler. Our method significantly decreased PCR quantitation cycles from Cq > 38 to Cq = 30.35 ± 0.5, which confirmed enhancement of PCR amplification. The proposed device takes a promising step forward in sample preparation towards an integrated device that can be used for simultaneous purification and solution exchange of DNA in point-of-need environmental monitoring applications.
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Uddin SM, Sayad A, Chan J, Huynh DH, Skafidas E, Kwan P. Heater Integrated Lab-on-a-Chip Device for Rapid HLA Alleles Amplification towards Prevention of Drug Hypersensitivity. SENSORS (BASEL, SWITZERLAND) 2021; 21:3413. [PMID: 34068416 PMCID: PMC8153606 DOI: 10.3390/s21103413] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/10/2021] [Accepted: 05/10/2021] [Indexed: 12/16/2022]
Abstract
HLA-B*15:02 screening before administering carbamazepine is recommended to prevent life-threatening hypersensitivity. However, the unavailability of a point-of-care device impedes this screening process. Our research group previously developed a two-step HLA-B*15:02 detection technique utilizing loop-mediated isothermal amplification (LAMP) on the tube, which requires two-stage device development to translate into a portable platform. Here, we report a heater-integrated lab-on-a-chip device for the LAMP amplification, which can rapidly detect HLA-B alleles colorimetrically. A gold-patterned micro-sized heater was integrated into a 3D-printed chip, allowing microfluidic pumping, valving, and incubation. The performance of the chip was tested with color dye. Then LAMP assay was conducted with human genomic DNA samples of known HLA-B genotypes in the LAMP-chip parallel with the tube assay. The LAMP-on-chip results showed a complete match with the LAMP-on-tube assay, demonstrating the detection system's concurrence.
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Affiliation(s)
- Shah Mukim Uddin
- Department of Medicine, The University of Melbourne, Royal Melbourne Hospital, Melbourne, VIC 3050, Australia; (S.M.U.); (J.C.); (D.H.H.); (E.S.)
| | - Abkar Sayad
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC 3004, Australia;
| | - Jianxiong Chan
- Department of Medicine, The University of Melbourne, Royal Melbourne Hospital, Melbourne, VIC 3050, Australia; (S.M.U.); (J.C.); (D.H.H.); (E.S.)
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC 3004, Australia;
| | - Duc Hau Huynh
- Department of Medicine, The University of Melbourne, Royal Melbourne Hospital, Melbourne, VIC 3050, Australia; (S.M.U.); (J.C.); (D.H.H.); (E.S.)
| | - Efstratios Skafidas
- Department of Medicine, The University of Melbourne, Royal Melbourne Hospital, Melbourne, VIC 3050, Australia; (S.M.U.); (J.C.); (D.H.H.); (E.S.)
- Department of Electrical and Electronic Engineering, Melbourne School of Engineering, The University of Melbourne, Melbourne, VIC 3010, Australia
| | - Patrick Kwan
- Department of Medicine, The University of Melbourne, Royal Melbourne Hospital, Melbourne, VIC 3050, Australia; (S.M.U.); (J.C.); (D.H.H.); (E.S.)
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC 3004, Australia;
- Department of Electrical and Electronic Engineering, Melbourne School of Engineering, The University of Melbourne, Melbourne, VIC 3010, Australia
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Boelens D, Fogliatto Mariot R, Ghemrawi M, Kloosterman AD, McCord BR. The development of miniSTRs as a method for high-speed direct PCR. Electrophoresis 2021; 42:1352-1361. [PMID: 33811666 DOI: 10.1002/elps.202100066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 03/18/2021] [Accepted: 03/20/2021] [Indexed: 12/17/2022]
Abstract
There are situations in which it would be very valuable to have a DNA profile within a short time; for example, in mass disasters or airport security. In previous work, we have promoted reduced size STR amplicons for the analysis of degraded DNA. We also noticed that shorter amplicons are more robust during amplification, making them inhibition resistant, and potentially applicable to high-speed direct PCR. Here, we describe a set of miniSTRs capable of rapid direct PCR amplification. The selected markers are a subset of the Combined DNA Index System (CODIS) loci modified to permit high-speed amplification. Using the proposed protocol, the amplification of eight loci plus amelogenin directly from a saliva sample can be completed in 7 min and 38 s using a two-step PCR with 30 cycles of 98°C for 2 s and 62°C for 7 s on a Streck Philisa thermocycler. Selection of DNA polymerase, optimization of the two-step PCR cycling conditions, the primer concentrations, and the dilution of saliva is described. This method shows great potential as a quick screening method to obtain a presumptive DNA profile when time is limited, particularly when combined with high-speed separation and detection methods.
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Affiliation(s)
- Dide Boelens
- Department of Chemistry, Florida International University (FIU), Miami, Florida, USA
| | | | - Mirna Ghemrawi
- Department of Chemistry, Florida International University (FIU), Miami, Florida, USA
| | - Ate D Kloosterman
- CLHC, Amsterdam Center for Forensic Science and Medicine, University of Amsterdam, Amsterdam, The Netherlands
| | - Bruce R McCord
- Department of Chemistry, Florida International University (FIU), Miami, Florida, USA
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Xu J, Wang J, He S, Su X, Zhong Z, Zhong W, Yan L, Huang S, Yang J, Gao R, Zhang J, Zeng J, Zhang D, Li T, Zhang S, Ge S, Zhang J, Xia N. Accurate nucleic acid quantification in a single sample tube without the need for calibration. Anal Chim Acta 2021; 1167:338599. [PMID: 34049623 DOI: 10.1016/j.aca.2021.338599] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 04/14/2021] [Accepted: 04/28/2021] [Indexed: 12/18/2022]
Abstract
Convenient and accurate nucleic acid quantification (NAQ) is crucial to clinical diagnosis, forensic medicine, veterinary medicine and food analysis. However, traditional NAQ relies on the preparation of a laborious, time-consuming and expensive calibration curve, which would also propagate pipette errors through serially dilutions. Besides, traditional NAQ is run in different tubes, which introduces bias from random tube-to-tube variations and is unable to detect inhibitors from biological samples. To solve these problems, a single-tube quantitative PCR (stqPCR) technique is proposed which enables accurate quantification without the need for a calibration curve. In this method, an internal quantitative standard DNA (IQS-DNA) for quantification was screened out by co-amplification with the target DNA. Then the difference between the quantification cycle value (ΔCq) of the IQS-DNA and the target DNA was used for NAQ. The method permitted high accuracy quantification with reliable data for concentrations in plasmid, serum standard, and clinical samples being confirmed (R2 values of 0.9951, 0.9889, and 0.9727, slope values of 1.011, 1.028, and 0.9327, and intercept values of -0.06037, -0.1486, and 0.3325, respectively). Accurate NAQ could also be achieved by stqPCR even though inhibitors were present in a sample; however, in the case of using a commercial assay kit, satisfactory performance was only attained after the same sample was diluted some 32-fold. Moreover, integration of the present method into a microfluidic system could achieve super-fast NAQ in less than 30 min and achieve super-fast "sample in, quantitative answer out" testing in less than 40 min. Thus, the stqPCR method present here would promote the development of NAQ in the laboratory and on site.
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Affiliation(s)
- Jiasu Xu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Jin Wang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, 361102, China; School of Life Sciences, Xiamen University, Xiamen, 361102, China
| | - Shuizhen He
- Haicang Hospital of Xiamen, Xiamen, 361026, China
| | - Xiaosong Su
- Xiang'an Hospital of Xiamen University, Xiamen, 361102, China
| | - Zecheng Zhong
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Weibo Zhong
- Xiamen Innovax Biotech CO., LTD., Xiamen, 361022, China
| | - Lizhen Yan
- Haicang Hospital of Xiamen, Xiamen, 361026, China
| | - Shaolei Huang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Jiayu Yang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Runxin Gao
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Jianbin Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Juntian Zeng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Dongxu Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Tingdong Li
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Shiyin Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, 361102, China.
| | - Shengxiang Ge
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, 361102, China.
| | - Jun Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Ningshao Xia
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, 361102, China; School of Life Sciences, Xiamen University, Xiamen, 361102, China
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Cuadros-Rodríguez L, Jiménez-Carvelo AM, Fernández-Ramos M. Multivariate thinking for optical microfluidic analytical devices – A tutorial review. Microchem J 2021. [DOI: 10.1016/j.microc.2021.105959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Obino D, Vassalli M, Franceschi A, Alessandrini A, Facci P, Viti F. An Overview on Microfluidic Systems for Nucleic Acids Extraction from Human Raw Samples. SENSORS 2021; 21:s21093058. [PMID: 33925730 PMCID: PMC8125272 DOI: 10.3390/s21093058] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/13/2021] [Accepted: 04/19/2021] [Indexed: 02/08/2023]
Abstract
Nucleic acid (NA) extraction is a basic step for genetic analysis, from scientific research to diagnostic and forensic applications. It aims at preparing samples for its application with biomolecular technologies such as isothermal and non-isothermal amplification, hybridization, electrophoresis, Sanger sequencing and next-generation sequencing. Multiple steps are involved in NA collection from raw samples, including cell separation from the rest of the specimen, cell lysis, NA isolation and release. Typically, this process needs molecular biology facilities, specialized instrumentation and labor-intensive operations. Microfluidic devices have been developed to analyze NA samples with high efficacy and sensitivity. In this context, the integration within the chip of the sample preparation phase is crucial to leverage the promise of portable, fast, user-friendly and economic point-of-care solutions. This review presents an overview of existing lab-on-a-chip (LOC) solutions designed to provide automated NA extraction from human raw biological fluids, such as whole blood, excreta (urine and feces), saliva. It mainly focuses on LOC implementation aspects, aiming to describe a detailed panorama of strategies implemented for different human raw sample preparations.
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Affiliation(s)
- Daniele Obino
- Institute of Biophysics, National Research Council, 16149 Genova, Italy; (D.O.); (F.V.)
| | - Massimo Vassalli
- Centre for the Cellular Microenvironment, James Watt School of Engineering, University of Glasgow, James Watt South Building, Glasgow G128LT, UK;
| | | | - Andrea Alessandrini
- Nanoscience Institute, National Research Council, 41125 Modena, Italy;
- Department of Physics, Informatics and Mathematics, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Paolo Facci
- Institute of Biophysics, National Research Council, 16149 Genova, Italy; (D.O.); (F.V.)
- Correspondence:
| | - Federica Viti
- Institute of Biophysics, National Research Council, 16149 Genova, Italy; (D.O.); (F.V.)
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40
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Cytotoxicity of Quillaja saponaria Saponins towards Lung Cells Is Higher for Cholesterol-Rich Cells. BIOPHYSICA 2021. [DOI: 10.3390/biophysica1020010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The purpose of the study was to compare cytotoxicity of two Quillaja saponaria bark saponin (QBS) mixtures against two lung cell lines: normal MRC-5 fibroblast cell line and tumor A-549 epithelial cells of lungs’ alveoli. The study, performed both at a macro-scale and in a dedicated microfluidic device, showed that QBS was more toxic to the cell line more abundant in cholesterol (MRC-5). The QBS mixture with higher saponin fraction was found to be more cytotoxic towards both cell lines. The results may help to better understand the cytotoxicity of saponin-rich herbal medicines towards normal and tumor cells depending on their cholesterol content.
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41
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Tytgat O, Fauvart M, Stakenborg T, Deforce D, Van Nieuwerburgh F. STRide probes: Single-labeled short tandem repeat identification probes. Biosens Bioelectron 2021; 180:113135. [PMID: 33690100 DOI: 10.1016/j.bios.2021.113135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/19/2021] [Accepted: 03/01/2021] [Indexed: 11/16/2022]
Abstract
The demand for forensic DNA profiling at the crime scene or at police stations is increasing. DNA profiling is currently performed in specialized laboratories by PCR amplification of Short Tandem Repeats (STR) followed by amplicon sizing using capillary electrophoresis. The need for bulky equipment to identify alleles after PCR presents a challenge for shifting to a decentralized workflow. We devised a novel hybridization-based STR-genotyping method, using Short Tandem Repeat Identification (STRide) probes, which could help tackle this issue. STRide probes are fluorescently labeled oligonucleotides that rely on the quenching properties of guanine on fluorescein derivatives. Mismatches between STRide probes and amplicons can be detected by melting curve analysis after asymmetric PCR. The functionality of the STRide probes was demonstrated by analyzing synthetic DNA samples for the D16S539 locus. Next, STRide probes were developed for five different CODIS core loci (D16S539, TH01, TPOX, FGA, and D7S820). These probes were validated by analyzing 13 human DNA samples. Successful genotyping was obtained using inputs as low as 31 pg of DNA, demonstrating high sensitivity. The STRide probes are ideally suited to be implemented in a microarray and present an important step towards a portable device for fast on-site forensic DNA fingerprinting.
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Affiliation(s)
- Olivier Tytgat
- Laboratory of Pharmaceutical Biotechnology, Ghent University, Ottergemsesteenweg 460, Gent, 9000, Belgium; Imec, Kapeldreef 75, Leuven, 3001, Belgium
| | | | | | - Dieter Deforce
- Laboratory of Pharmaceutical Biotechnology, Ghent University, Ottergemsesteenweg 460, Gent, 9000, Belgium
| | - Filip Van Nieuwerburgh
- Laboratory of Pharmaceutical Biotechnology, Ghent University, Ottergemsesteenweg 460, Gent, 9000, Belgium.
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Wimbles R, Melling LM, Cain B, Davies N, Doherty J, Johnson B, Shaw KJ. On-site genetic analysis for species identification using lab-on-a-chip. Ecol Evol 2021; 11:1535-1543. [PMID: 33613987 PMCID: PMC7882957 DOI: 10.1002/ece3.7053] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 10/22/2020] [Accepted: 11/02/2020] [Indexed: 12/17/2022] Open
Abstract
This paper presents a microfluidic device capable of performing genetic analysis on dung samples to identify White Rhinoceros (Ceratotherium simum). The development of a microfluidic device, which can be used in the field, offers a portable and cost-effective solution for DNA analysis and species identification to aid conservation efforts. Optimization of the DNA extraction processes produced equivalent yields compared to conventional kit-based methods within just 5 minutes. The use of a color-changing loop-mediated isothermal amplification reaction for simultaneous detection of the cytochrome B sequence of C. simum enabled positive results to be obtained within as little as 30 minutes. Field testing was performed at Knowsley Safari to demonstrate real-world applicability of the microfluidic device for testing of biological samples.
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Affiliation(s)
- Ryan Wimbles
- Department of Natural SciencesManchester Metropolitan UniversityManchesterUK
| | - Louise M. Melling
- Department of Natural SciencesManchester Metropolitan UniversityManchesterUK
| | - Bradley Cain
- Department of Natural SciencesManchester Metropolitan UniversityManchesterUK
| | | | | | | | - Kirsty J. Shaw
- Department of Natural SciencesManchester Metropolitan UniversityManchesterUK
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43
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Special Issue "Forensic Genetics and Genomics". Genes (Basel) 2021; 12:genes12020158. [PMID: 33503983 PMCID: PMC7912074 DOI: 10.3390/genes12020158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 01/23/2021] [Indexed: 11/16/2022] Open
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Single-use microfluidic device for purification and concentration of environmental DNA from river water. Talanta 2021; 226:122109. [PMID: 33676665 DOI: 10.1016/j.talanta.2021.122109] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 01/04/2021] [Accepted: 01/09/2021] [Indexed: 12/29/2022]
Abstract
Purification and concentration of DNA is a critical step on DNA-based analysis, which should ensure efficient DNA isolation and effective removal of contaminants that may interfere with downstream DNA amplification. Complexity of samples, minute content of target analyte, or high DNA fragmentation greatly entangles the success of this step. To overcome this issue, we designed and fabricated a novel miniaturized disposable device for a highly efficient DNA purification. The microfluidic device showed binding efficiency and elution yield of 90.1% and 86.7%, respectively. Moreover, the effect of DNA fragmentation, a parameter that has not been previously addressed, showed a great impact in the recovery step. The microfluidic system integrated micropillars with chitosan being used as the solid-phase for a pH-dependent DNA capture and release. We have showed the potential of the device in the successful purification of environmental DNA (eDNA) from river water samples contaminated with Dreissena polymorpha, an invasive alien species responsible for unquestionable economic and environmental consequences in river water basins. Additionally, the device was also able to concentrate the DNA extract from highly diluted samples, showing promising results for the early detection of such invasive species, which may allow prompt measures for a more efficient control in affected areas. Suitability for integration with downstream DNA analysis was also demonstrated through qPCR analysis of the samples purified with the microfluidic device, allowing detection of the target species even if highly diluted.
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Chen PC, Lin YT, Truong CM, Chen PS, Chiang HK. Development of an Automated Optical Inspection System for Rapidly and Precisely Measuring Dimensions of Embedded Microchannel Structures in Transparent Bonded Chips. SENSORS 2021; 21:s21030698. [PMID: 33498437 PMCID: PMC7864200 DOI: 10.3390/s21030698] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 01/10/2021] [Accepted: 01/14/2021] [Indexed: 12/22/2022]
Abstract
This study aimed to develop an automated optical inspection (AOI) system that can rapidly and precisely measure the dimensions of microchannels embedded inside a transparent polymeric substrate, and can eventually be used on the production line of a factory. The AOI system is constructed based on Snell’s law. The concept holds that, when light travels through two transparent media (air and the microfluidic chip transparent material), by capturing the parallel refracted light from a light source that went through the microchannel using a camera with a telecentric lens, the image can be analyzed using formulas derived from Snell’s law to measure the dimensions of the microchannel cross-section. Through the NI LabVIEW 2018 SP1 programming interface, we programmed this system to automatically analyze the captured image and acquire all the needed data. The system then processes these data using custom-developed formulas to calculate the height and width measurements of the microchannel cross-sections and presents the results on the human–machine interface (HMI). In this study, a single and straight microchannel with a cross-sectional area of 300 μm × 300 μm and length of 44 mm was micromachined and sealed with another polymeric substrate by a solvent bonding method for experimentations. With this system, 45 cross-sectional areas along the straight microchannel were measured within 20 s, and experiment results showed that the average measured error was less than 2%.
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Affiliation(s)
- Pin-Chuan Chen
- Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan; (Y.-T.L.); (C.-M.T.)
- High Speed 3D Printing Research Center, National Taiwan University of Science and Technology, Taipei 106, Taiwan
- Correspondence: (P.-C.C.); (H.-K.C.)
| | - Ya-Ting Lin
- Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan; (Y.-T.L.); (C.-M.T.)
| | - Chi-Minh Truong
- Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan; (Y.-T.L.); (C.-M.T.)
| | - Pai-Shan Chen
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, Taipei 100, Taiwan;
| | - Huihua-Kenny Chiang
- Institute of Biomedical Engineering, National Yang-Ming University, Taipei 112, Taiwan
- Correspondence: (P.-C.C.); (H.-K.C.)
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Zhao Y, Zuo X, Li Q, Chen F, Chen YR, Deng J, Han D, Hao C, Huang F, Huang Y, Ke G, Kuang H, Li F, Li J, Li M, Li N, Lin Z, Liu D, Liu J, Liu L, Liu X, Lu C, Luo F, Mao X, Sun J, Tang B, Wang F, Wang J, Wang L, Wang S, Wu L, Wu ZS, Xia F, Xu C, Yang Y, Yuan BF, Yuan Q, Zhang C, Zhu Z, Yang C, Zhang XB, Yang H, Tan W, Fan C. Nucleic Acids Analysis. Sci China Chem 2020; 64:171-203. [PMID: 33293939 PMCID: PMC7716629 DOI: 10.1007/s11426-020-9864-7] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 09/04/2020] [Indexed: 12/11/2022]
Abstract
Nucleic acids are natural biopolymers of nucleotides that store, encode, transmit and express genetic information, which play central roles in diverse cellular events and diseases in living things. The analysis of nucleic acids and nucleic acids-based analysis have been widely applied in biological studies, clinical diagnosis, environmental analysis, food safety and forensic analysis. During the past decades, the field of nucleic acids analysis has been rapidly advancing with many technological breakthroughs. In this review, we focus on the methods developed for analyzing nucleic acids, nucleic acids-based analysis, device for nucleic acids analysis, and applications of nucleic acids analysis. The representative strategies for the development of new nucleic acids analysis in this field are summarized, and key advantages and possible limitations are discussed. Finally, a brief perspective on existing challenges and further research development is provided.
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Affiliation(s)
- Yongxi Zhao
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an, 710049 China
| | - Xiaolei Zuo
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127 China
| | - Qian Li
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240 China
| | - Feng Chen
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an, 710049 China
| | - Yan-Ru Chen
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108 China
| | - Jinqi Deng
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190 China
| | - Da Han
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127 China
| | - Changlong Hao
- State Key Lab of Food Science and Technology, International Joint Research Laboratory for Biointerface and Biodetection, School of Food Science and Technology, Jiangnan University, Wuxi, 214122 China
| | - Fujian Huang
- Faculty of Materials Science and Chemistry, Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan, 430074 China
| | - Yanyi Huang
- College of Chemistry and Molecular Engineering, Biomedical Pioneering Innovation Center (BIOPIC), Beijing Advanced Innovation Center for Genomics (ICG), Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871 China
| | - Guoliang Ke
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082 China
| | - Hua Kuang
- State Key Lab of Food Science and Technology, International Joint Research Laboratory for Biointerface and Biodetection, School of Food Science and Technology, Jiangnan University, Wuxi, 214122 China
| | - Fan Li
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127 China
| | - Jiang Li
- Division of Physical Biology, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800 China
- Bioimaging Center, Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210 China
| | - Min Li
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127 China
| | - Na Li
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, 250014 China
| | - Zhenyu Lin
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116 China
| | - Dingbin Liu
- College of Chemistry, Research Center for Analytical Sciences, State Key Laboratory of Medicinal Chemical Biology, and Tianjin Key Laboratory of Molecular Recognition and Biosensing, Nankai University, Tianjin, 300071 China
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1 Canada
| | - Libing Liu
- Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 China
- College of Chemistry, University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Xiaoguo Liu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240 China
| | - Chunhua Lu
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116 China
| | - Fang Luo
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116 China
| | - Xiuhai Mao
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127 China
| | - Jiashu Sun
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190 China
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, 250014 China
| | - Fei Wang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240 China
| | - Jianbin Wang
- School of Life Sciences, Tsinghua-Peking Center for Life Sciences, Beijing Advanced Innovation Center for Structural Biology (ICSB), Chinese Institute for Brain Research (CIBR), Tsinghua University, Beijing, 100084 China
| | - Lihua Wang
- Division of Physical Biology, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800 China
- Bioimaging Center, Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210 China
| | - Shu Wang
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1 Canada
| | - Lingling Wu
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127 China
| | - Zai-Sheng Wu
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108 China
| | - Fan Xia
- Faculty of Materials Science and Chemistry, Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan, 430074 China
| | - Chuanlai Xu
- State Key Lab of Food Science and Technology, International Joint Research Laboratory for Biointerface and Biodetection, School of Food Science and Technology, Jiangnan University, Wuxi, 214122 China
| | - Yang Yang
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127 China
| | - Bi-Feng Yuan
- Department of Chemistry, Wuhan University, Wuhan, 430072 China
| | - Quan Yuan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082 China
| | - Chao Zhang
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127 China
| | - Zhi Zhu
- The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 China
| | - Chaoyong Yang
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127 China
- The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 China
| | - Xiao-Bing Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082 China
| | - Huanghao Yang
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116 China
| | - Weihong Tan
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127 China
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082 China
| | - Chunhai Fan
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127 China
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240 China
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Mutafopulos K, Lu PJ, Garry R, Spink P, Weitz DA. Selective cell encapsulation, lysis, pico-injection and size-controlled droplet generation using traveling surface acoustic waves in a microfluidic device. LAB ON A CHIP 2020; 20:3914-3921. [PMID: 32966482 DOI: 10.1039/d0lc00723d] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
We generate droplets in a microfluidic device using a traveling surface acoustic wave (TSAW), and control droplet size by adjusting TSAW power and duration. We combine droplet production and fluorescence detection to selectively-encapsulate cells and beads; with this active method, the overwhelming majority of single particles or cells are encapsulated individually into droplets, contrasting the Poisson distribution of encapsulation number that governs traditional, passive microfluidic encapsulation. In addition, we lyse cells before selective encapsulation, and pico-inject new materials into existing droplets.
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Affiliation(s)
- Kirk Mutafopulos
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA.
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48
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Analysis of streaming potential flow and electroviscous effect in a shear-driven charged slit microchannel. Sci Rep 2020; 10:18317. [PMID: 33110227 PMCID: PMC7591916 DOI: 10.1038/s41598-020-75531-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 09/30/2020] [Indexed: 11/08/2022] Open
Abstract
Investigating the flow behavior in microfluidic systems has become of interest due to the need for precise control of the mass and momentum transport in microfluidic devices. In multilayered-flows, precise control of the flow behavior requires a more thorough understanding as it depends on multiple parameters. The following paper proposes a microfluidic system consisting of an aqueous solution between a moving plate and a stationary wall, where the moving plate mimics a charged oil-water interface. Analytical expressions are derived by solving the nonlinear Poisson-Boltzmann equation along with the simplified Navier-Stokes equation to describe the electrokinetic effects on the shear-driven flow of the aqueous electrolyte solution. The Debye-Huckel approximation is not employed in the derivation extending its compatibility to high interfacial zeta potential. Additionally, a numerical model is developed to predict the streaming potential flow created due to the shear-driven motion of the charged upper wall along with its associated electric double layer effect. The model utilizes the extended Nernst-Planck equations instead of the linearized Poisson-Boltzmann equation to accurately predict the axial variation in ion concentration along the microchannel. Results show that the interfacial zeta potential of the moving interface greatly impacts the velocity profile of the flow and can reverse its overall direction. The numerical results are validated by the analytical expressions, where both models predicted that flow could reverse its overall direction when the interfacial zeta potential of the oil-water is above a certain threshold value. Finally, this paper describes the electroviscous effect as well as the transient development of electrokinetic effects within the microchannel.
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49
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Terán JE, Millbern Z, Shao D, Sui X, Liu Y, Demmler M, Vinueza NR. Characterization of synthetic dyes for environmental and forensic assessments: A chromatography and mass spectrometry approach. J Sep Sci 2020; 44:387-402. [PMID: 33047882 DOI: 10.1002/jssc.202000836] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 10/05/2020] [Accepted: 10/06/2020] [Indexed: 12/07/2022]
Abstract
Dyes have become common substances since they are employed in mostly all objects surrounding our daily activities such as clothing and upholstery. Based on the usage and disposal of these objects, the transfer of the dyes to other media such as soil and water increases their prevalence in our environment. However, this prevalence could help to solve crimes and pollution problems if detection techniques are proper. For that reason, the detection and characterization of dyes in complex matrices is important to determine the possible events leading to their deposition (natural degradation, attempts of removal, possible match with evidence, among others). Currently, there are several chromatographic and mass spectrometric approaches used for the identification of these organic molecules and their derivatives with high specificity and accuracy. This review presents current chromatographic and mass spectrometric methods that are used for the detection and characterization of disperse, acid, basic, and reactive dyes, and their derivatives.
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Affiliation(s)
- Julio E Terán
- Department of Textile Engineering, Chemistry, and Science, North Carolina State University, Raleigh, North Carolina, USA
| | - Zoe Millbern
- Department of Textile Engineering, Chemistry, and Science, North Carolina State University, Raleigh, North Carolina, USA
| | - Dongyan Shao
- Department of Textile Engineering, Chemistry, and Science, North Carolina State University, Raleigh, North Carolina, USA
| | - Xinyi Sui
- Department of Textile Engineering, Chemistry, and Science, North Carolina State University, Raleigh, North Carolina, USA
| | - Yixin Liu
- Department of Textile Engineering, Chemistry, and Science, North Carolina State University, Raleigh, North Carolina, USA
| | - Morgan Demmler
- Department of Textile Engineering, Chemistry, and Science, North Carolina State University, Raleigh, North Carolina, USA
| | - Nelson R Vinueza
- Department of Textile Engineering, Chemistry, and Science, North Carolina State University, Raleigh, North Carolina, USA
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50
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Abstract
Reducing the risk of (cross-)contamination, improving the chain of custody, providing fast analysis times and options of direct analysis at crime scenes: these requirements within forensic DNA analysis can be met upon using microfluidic devices. To become generally applied in forensics, the most important requirements for microfluidic devices are: analysis time, method of DNA detection and biocompatibility of used materials. In this work an overview is provided about biosensing of DNA, by DNA profiling via standard short tandem repeat (STR) analysis or by next generation sequencing. The material of which a forensic microfluidic device is made is crucial: it should for example not inhibit DNA amplification and its thermal conductivity and optical transparency should be suitable for achieving fast analysis. The characteristics of three materials frequently used materials, i.e., glass, silicon and PDMS, are given, in addition to a promising alternative, viz. cyclic olefin copolymer (COC). New experimental findings are presented about the biocompatibility of COC and the use of COC chips for multiple displacement amplification and real-time monitoring of DNA amplification.
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