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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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Zhang D, Hu Y, Gao R, Ge S, Zhang J, Zhang X, Xia N. Numerical and experimental investigation on the performance of rapid ultrasonic-assisted nucleic acid extraction based on dispersive two-phase flow. Anal Chim Acta 2024; 1288:342176. [PMID: 38220306 DOI: 10.1016/j.aca.2023.342176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 12/11/2023] [Accepted: 12/21/2023] [Indexed: 01/16/2024]
Abstract
BACKGROUND Nucleic acid extraction (NAE) is an essential step in the whole process of nucleic acid detection (NAT). Traditional manual extraction methods are time-consuming and laborious, unfavorable to the point-of-care testing of nucleic acids. Ultrasound has been emphasized due to its noncontact and easy-to-manipulate characteristics, and integration with microfluidic chip can realize rapid NAE through acoustic streaming effect. The uniformity of magnetic bead mixing in this process is a critical factor affecting the extraction effect. In this study, we developed an ultrasound-assisted NAE technique based on the magnetic bead method and optimized the chip structure to achieve rapid NAE. RESULT We use ultrasonic-assisted coupled with magnetic bead method for ultra-fast NAE. The mixing process of magnetic beads driven by acoustic streaming is simulated by a dispersive two-phase flow model, and the ultrasonic incidence angle (θin), cone structure aspect ratio (Dc/Hc) and sheet structure thickness (Hp) are optimized to enhance the mixing performance. Furthermore, the effectiveness of NAE is validated by utilizing quantitative real-time PCR (qPCR) detection. The findings reveal that a θin value of 10° yields superior mixing performance compared to other incidence angles, resulting in a maximum increase of 84 % in mixing intensity. When Dc/Hc = 0.5 and Hp = 0.5 mm, the maximum mixing index in the localized region of the chamber after 1 s of ultrasound action can reach 83.6 % and 92.5 %, respectively. Compared to the original chamber, the CT values extracted after 5 s of ultrasound action shifted forward by up to 1.9 ct and 4.1 ct, respectively. SIGNIFICANCE The dispersed two-phase flow model can effectively simulate the mixing process of magnetic beads, which plays an important role in assisting the structural design of chip extraction chambers. The single-step mixing of ultrasound-assisted NAE takes only 15s to achieve an extraction performance comparable to manual extraction. The extraction process can be completed within 7 min after integrating this technology with microfluidic chips and automated equipment, providing a solution for automated and efficient NAE.
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Affiliation(s)
- Dongxu Zhang
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases,State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics,National Innovation Platform for Industry-Education Integration in Vaccine Research,the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences,Xiamen University, Xiamen, Fujian, China
| | - Yang Hu
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases,State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics,National Innovation Platform for Industry-Education Integration in Vaccine Research,the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences,Xiamen University, Xiamen, Fujian, China; Discipline of Intelligent Instrument and Equipment, Xiamen University, Fujian, China; Department of Experimental Medicine, School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Runxin Gao
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases,State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics,National Innovation Platform for Industry-Education Integration in Vaccine Research,the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences,Xiamen University, Xiamen, Fujian, China; Department of Experimental Medicine, School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Shengxiang Ge
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases,State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics,National Innovation Platform for Industry-Education Integration in Vaccine Research,the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences,Xiamen University, Xiamen, Fujian, China
| | - Jun Zhang
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases,State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics,National Innovation Platform for Industry-Education Integration in Vaccine Research,the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences,Xiamen University, Xiamen, Fujian, China
| | - Xianglei Zhang
- School of Mechanical and Electrical Engineering, Wenzhou University, Wenzhou, Zhejiang, China.
| | - Ningshao Xia
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases,State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics,National Innovation Platform for Industry-Education Integration in Vaccine Research,the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences,Xiamen University, Xiamen, Fujian, China.
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3
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Carvalho J, Yadav S, Garrido-Maestu A, Azinheiro S, Trujillo I, Barros-Velázquez J, Prado M. Evaluation of simple sequence repeats (SSR) and single nucleotide polymorphism (SNP)-based methods in olive varieties from the Northwest of Spain and potential for miniaturization. FOOD CHEMISTRY: MOLECULAR SCIENCES 2021; 3:100038. [PMID: 35415648 PMCID: PMC8991621 DOI: 10.1016/j.fochms.2021.100038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 07/10/2021] [Accepted: 07/31/2021] [Indexed: 11/17/2022]
Abstract
SSR- and SNP-based methods were evaluated for the identification of olive varieties. SNP identification was performed for the first time for two autochthonous varieties. The potential for future miniaturization of the genotyping methods was evaluated. Allele-specific PCR provided the best results for the tested olive varieties.
Miniaturization of DNA-based techniques can bring interesting advantages for food analysis, such as portability of complex analytical procedures. In the olive oil industry, miniaturization can be particularly interesting for authenticity and traceability applications, through in situ control of raw materials before production and/or the final products. However, variety identification is challenging, and implementation on miniaturized settings must be carefully evaluated, starting from the selected analytical approach. In this work, SSR- and SNP-based genotyping strategies were investigated for the identification and differentiation of two olive varieties from the Northwest of Spain. For the selected SNPs two genotyping methods were tested: real-time allele-specific PCR and high resolution melting analysis. These methods were compared and evaluated regarding their potential for integration in a microfluidic device. Both SNP-based methods proved to be successful for identification of the selected varieties, however real-time allele-specific PCR was the one that achieved the best results when analyzing mixtures, allowing the identification of both monovarietal samples and mixtures of the varieties tested with up to 25%.
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Nouwairi RL, O'Connell KC, Gunnoe LM, Landers JP. Microchip Electrophoresis for Fluorescence-Based Measurement of Polynucleic Acids: Recent Developments. Anal Chem 2020; 93:367-387. [PMID: 33351599 DOI: 10.1021/acs.analchem.0c04596] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Renna L Nouwairi
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22903, United States
| | - Killian C O'Connell
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22903, United States
| | - Leah M Gunnoe
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22903, United States
| | - James P Landers
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22903, United States.,Department of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, Virginia 22903, United States.,Department of Pathology, University of Virginia Health Science Center, Charlottesville, Virginia 22903, United States
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Qin Z, Peng R, Baravik IK, Liu X. Fighting COVID-19: Integrated Micro- and Nanosystems for Viral Infection Diagnostics. MATTER 2020; 3:628-651. [PMID: 32838297 PMCID: PMC7346839 DOI: 10.1016/j.matt.2020.06.015] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The pandemic of coronavirus disease 2019 (COVID-19) highlights the importance of rapid and sensitive diagnostics of viral infection that enables the efficient tracing of cases and the implementation of public health measures for disease containment. The immediate actions from both academia and industry have led to the development of many COVID-19 diagnostic systems that have secured fast-track regulatory approvals and have been serving our healthcare frontlines since the early stage of the pandemic. On diagnostic technologies, many of these clinically validated systems have significantly benefited from the recent advances in micro- and nanotechnologies in terms of platform design, analytical method, and system integration and miniaturization. The continued development of new diagnostic platforms integrating micro- and nanocomponents will address some of the shortcomings we have witnessed in the existing COVID-19 diagnostic systems. This Perspective reviews the previous and ongoing research efforts on developing integrated micro- and nanosystems for nucleic acid-based virus detection, and highlights promising technologies that could provide better solutions for the diagnosis of COVID-19 and other viral infectious diseases. With the summary and outlook of this rapidly evolving research field, we hope to inspire more research and development activities to better prepare our society for future public health crises.
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Affiliation(s)
- Zhen Qin
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON M5S 3G8, Canada
| | - Ran Peng
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON M5S 3G8, Canada
| | - Ilina Kolker Baravik
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON M5S 3G8, Canada
| | - Xinyu Liu
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON M5S 3G8, Canada
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
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6
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A Fluorescence Sensing Method with Reduced DNA Typing and Low-Cost Instrumentation for Detection of Sample Tampering Cases in Urinalysis. Ann Biomed Eng 2019; 48:644-654. [PMID: 31624980 DOI: 10.1007/s10439-019-02386-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 10/04/2019] [Indexed: 10/25/2022]
Abstract
This work presents a method to unequivocally detect urine sample tampering in cases where integrity of the sample needs to be verified prior to urinalysis. The technique involves the detection of distinct patterns of a triplex short tandem repeats system in DNA extracted from human urine. The analysis is realized with single-dye fluorescence detection and using a regular smartphone camera. The experimental results had demonstrated the efficacy of the analytical approach to obtaining distinct profiles of amplicons in urine from different sample providers. Reproducibility tests with fresh and stored urine have revealed a maximum variation in the profiles within an interval of 5 to 9%. Cases of urine sample tampering via mixture were simulated in the study, and the experiments have identified patterns of mixed genotypes from dual mixtures of urine samples. Moreover, sample adulteration by mixing a non-human fluid with urine in a volume ratio over 25% can be detected. The low cost of the approach is accompanied by the compatibility of the technique to use with different DNA sample preparation protocols and PCR instrumentation. Furthermore, the possibility of realizing the method in an integrated microchip system open great perspectives to conducting sample integrity tests at the site of urine sample reception and/or at resource-limited settings.
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Kim YT, Bohjanen S, Bhattacharjee N, Folch A. Partitioning of hydrogels in 3D-printed microchannels. LAB ON A CHIP 2019; 19:3086-3093. [PMID: 31502633 PMCID: PMC8806468 DOI: 10.1039/c9lc00535h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Hydrogels allow for controlling the diffusion rate and amount of solute according to the hydrogel network and thus have found many applications in drug delivery, biomaterials, toxicology, and tissue engineering. This paper describes a 3D-printed microfluidic chip for the straightforward partitioning of hydrogel barriers between microchannels. We use a previously-reported 3-channel architecture whereby the middle channel is filled with a hydrogel - acting like a porous barrier for diffusive transport - and the two side channels act as sink and source; the middle channel communicates with the side channels via orthogonal, small capillary channels that are also responsible for partitioning the hydrogel during filling. Our 3D-printed microfluidic chip is simple to fabricate by stereolithography (SL), inexpensive, reproducible, and convenient, so it is more adequate for transport studies than a microchip fabricated by photolithographic procedures. The chip was fabricated in a resin made of poly(ethylene glycol) diacrylate (PEG-DA) (MW = 258) (PEG-DA-258). The SL process allowed us to print high aspect ratio (37 : 1) capillary channels (27 μm-width and 1 mm-height) and enable the trapping of liquid-phase hydrogels in the hydrogel barrier middle channel. We studied the permeability of hydrogel barriers made of PEG-DA (MW = 700) (PEG-DA-700, 10% polymer content by wt. in water) - as a model of photopolymerizable barriers - and agarose (MW = 120 000, 2% polymer content by wt. in water) - as a model of thermally-gelled barriers. We measured the diffusion of fluorescein, 10k-dextran-Alexa 680 and BSA-Texas Red through these barriers. Fluorescein diffusion was observed through both 10% PEG-DA-700 and 2% agarose barriers while 10k-dextran-Alexa 680 and BSA-Texas Red diffused appreciably only through the 2% agarose hydrogel barrier. Our microfluidic chip facilitates the tuning of such barriers simply by altering the hydrogel materials. The straightforward trapping of selective barriers in 3D-printed microchannels should find wide applicability in drug delivery, tissue engineering, cell separation, and organ-on-a-chip platforms.
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Affiliation(s)
- Yong Tae Kim
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Foege Building N423A, Seattle, Wa 98195, USA
- Department of Chemical Engineering & Biotechnology, Korea Polytechnic University, 237 Sangidaehak-ro, Siheung-si, Gyeonggi-do 15073, Republic of Korea
| | - Sara Bohjanen
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Foege Building N423A, Seattle, Wa 98195, USA
| | - Nirveek Bhattacharjee
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Foege Building N423A, Seattle, Wa 98195, USA
| | - Albert Folch
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Foege Building N423A, Seattle, Wa 98195, USA
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Park YM, Kim CH, Lee SJ, Lee MK. Multifunctional hand-held sensor using electronic components embedded in smartphones for quick PCR screening. Biosens Bioelectron 2019; 141:111415. [DOI: 10.1016/j.bios.2019.111415] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 05/24/2019] [Accepted: 06/04/2019] [Indexed: 10/26/2022]
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9
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Zhu C, Hu A, Cui J, Yang K, Zhu X, Liu Y, Deng G, Zhu L. A Lab-on-a-Chip Device Integrated DNA Extraction and Solid Phase PCR Array for the Genotyping of High-Risk HPV in Clinical Samples. MICROMACHINES 2019; 10:mi10080537. [PMID: 31443221 PMCID: PMC6722547 DOI: 10.3390/mi10080537] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 08/09/2019] [Accepted: 08/13/2019] [Indexed: 02/01/2023]
Abstract
Point-of-care (POC) molecular diagnostics play a crucial role in the prevention and treatment of infectious diseases. It is necessary to develop portable, easy-to-use, inexpensive and rapid molecular diagnostic tools. In this study, we proposed a lab-on-a-chip device that integrated DNA extraction, solid-phase PCR and genotyping detection. The ingenious design of the pneumatic microvalves enabled the fluid mixing and reagent storage to be organically combined, significantly reducing the size of the chip. The solid oligonucleotide array incorporated into the chip allowed the spatial separation of the primers and minimized undesirable interactions in multiplex amplification. As a proof-of-concept for POC molecular diagnostics on the device, five genotypes of high-risk human papillomavirus (HPV) (HPV16/HPV18/HPV31/HPV33/HPV58) were examined. Positive quality control samples and HPV patient cervical swab specimens were analyzed on the integrated microdevice. The platform was capable of detection approximately 50 copies of HPV virus per reaction during a single step, including DNA extraction, solid-phase PCR and genotype detection, in 1 h from samples being added to the chip. This simple and inexpensive microdevice provided great utility for the screening and monitoring of HPV genotypes. The sample-to-result platform will pave the way for wider application of POC molecular testing in the fields of clinical diagnostics, food safety, and environmental monitoring.
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Affiliation(s)
- Cancan Zhu
- Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, 2221 Changjiang Road, Hefei 230000, China
- Science Island Branch, University of Science and Technology of China, No. 96, JinZhai Road Baohe District, Hefei 230000, China
| | - Anzhong Hu
- Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, 2221 Changjiang Road, Hefei 230000, China
| | - Junsheng Cui
- Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, 2221 Changjiang Road, Hefei 230000, China
| | - Ke Yang
- Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, 2221 Changjiang Road, Hefei 230000, China
| | - Xinchao Zhu
- Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, 2221 Changjiang Road, Hefei 230000, China
- Science Island Branch, University of Science and Technology of China, No. 96, JinZhai Road Baohe District, Hefei 230000, China
| | - Yong Liu
- Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, 2221 Changjiang Road, Hefei 230000, China
| | - Guoqing Deng
- Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, 2221 Changjiang Road, Hefei 230000, China
| | - Ling Zhu
- Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, 2221 Changjiang Road, Hefei 230000, China.
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10
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Zhu C, Wu X, Li Z, Zhao J, Liu Y, Wang A, Deng G, Zhu L. A microfluidic system integrated one-step PCR and high-resolution melting analysis for rapid rice mutant detection. BIOTECHNOL BIOTEC EQ 2019. [DOI: 10.1080/13102818.2019.1644196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Affiliation(s)
- Cancan Zhu
- Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, PR China
- Science Island Branch, University of Science and Technology of China, Hefei, PR China
| | - Xiaosong Wu
- Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, PR China
- Science Island Branch, University of Science and Technology of China, Hefei, PR China
| | - Zhigang Li
- Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, PR China
- Science Island Branch, University of Science and Technology of China, Hefei, PR China
| | - Jun Zhao
- Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, PR China
- Science Island Branch, University of Science and Technology of China, Hefei, PR China
| | - Yong Liu
- Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, PR China
| | - An Wang
- Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, PR China
| | - Guoqing Deng
- Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, PR China
| | - Ling Zhu
- Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, PR China
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Gu Y, Zhuang B, Han J, Li Y, Song X, Zhou X, Wang L, Liu P. Modular-Based Integrated Microsystem with Multiple Sample Preparation Modules for Automated Forensic DNA Typing from Reference to Challenging Samples. Anal Chem 2019; 91:7435-7443. [PMID: 31050401 DOI: 10.1021/acs.analchem.9b01560] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The realization of an automated short tandem repeat (STR) analysis for forensic investigations is facing a unique challenge, that is DNA evidence with wide disparities in sample types, quality, and quantity. We developed a fully integrated microsystem in a modular-based architecture to accept and process various forensic samples in a "sample-in-answer-out" manner for forensic STR analysis. Two sample preparation modules (SPMs), the direct and the extraction SPM, were designed to be easily assembled with a capillary array electrophoresis (CAE) chip using a chip cartridge to efficiently achieve an adequate performance to different samples at a low cost. The direct SPM processed buccal swabs to produce STR profiles without DNA extraction in about 2 h. The extraction SPM analyzed more challenging blood samples based on chitosan-modified quartz filter paper for DNA extraction. This newly developed quartz filter provided a 90% DNA extraction efficiency and the "in situ" PCR capability, which enabled DNA extraction and PCR performed within a single chamber with all the DNA concentrated in the filter. We demonstrated that minute amounts of blood (0.25 μL), highly diluted blood (0.5 μL blood in 1 mL buffer), and latent bloodstains (5-μL bloodstain on cloth washed with detergent) can be automatically analyzed using our microsystem, reliably producing full STR profiles with a 100% calling of all the alleles. This modular-based microsystem with the capability of analyzing a wide range of samples should be able to play an increasing role in both urgent situations and routine forensic investigations, dramatically extending the applications and utility of automated DNA typing.
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Affiliation(s)
- Yin Gu
- Department of Biomedical Engineering, School of Medicine, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases , Tsinghua University , Beijing , 100084 , China.,State Key Laboratory of Space Medicine Fundamentals and Application , China Astronaut Research and Training Center , Beijing , 100094 , China
| | - Bin Zhuang
- Beijing CapitalBio Technology Ltd. Co. , Beijing , 101111 , China
| | - Junping Han
- Technology Department of Chaoyang Sub-bureau , Beijing Public Security Bureau , Beijing , 100102 , China
| | - Yi Li
- Beijing CapitalBio Technology Ltd. Co. , Beijing , 101111 , China
| | - Xiaoyu Song
- Beijing CapitalBio Technology Ltd. Co. , Beijing , 101111 , China
| | - Xinying Zhou
- CapitalBio Corporation , Beijing , 102206 , China
| | - Lei Wang
- CapitalBio Corporation , Beijing , 102206 , China
| | - Peng Liu
- Department of Biomedical Engineering, School of Medicine, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases , Tsinghua University , Beijing , 100084 , China
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12
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Naked eye detection of an amplified gene using metal particle-based DNA transport within functionalized porous interfaces. Talanta 2019; 195:97-102. [DOI: 10.1016/j.talanta.2018.11.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 11/12/2018] [Accepted: 11/12/2018] [Indexed: 11/17/2022]
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13
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Redox titration on foldable paper-based analytical devices for the visual determination of alcohol content in whiskey samples. Talanta 2019; 194:363-369. [DOI: 10.1016/j.talanta.2018.10.036] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 10/09/2018] [Accepted: 10/09/2018] [Indexed: 12/28/2022]
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14
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Pinheiro KMP, Moreira RC, Rezende KCA, Talhavini M, Logrado LPL, Baio JAF, Lanza MRV, Coltro WKT. Rapid separation of post-blast explosive residues on glass electrophoresis microchips. Electrophoresis 2018; 40:462-468. [DOI: 10.1002/elps.201800245] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 10/26/2018] [Accepted: 10/27/2018] [Indexed: 01/21/2023]
Affiliation(s)
| | - Roger C. Moreira
- Instituto de Química; Universidade Federal de Goiás; Goiânia GO Brazil
| | | | - Márcio Talhavini
- Instituto Nacional de Criminalística; Polícia Federal Brasileira; Brasília DF Brazil
| | | | - José A. F. Baio
- Instituto de Química de São Carlos; Universidade de São Paulo; São Carlos SP Brazil
| | - Marcos R. V. Lanza
- Instituto de Química de São Carlos; Universidade de São Paulo; São Carlos SP Brazil
| | - Wendell K. T. Coltro
- Instituto de Química; Universidade Federal de Goiás; Goiânia GO Brazil
- Instituto Nacional de Ciência e Tecnologia de Bioanalítica; Campinas SP Brazil
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Park M, Seo TS. An integrated microfluidic device with solid-phase extraction and graphene oxide quantum dot array for highly sensitive and multiplex detection of trace metal ions. Biosens Bioelectron 2018; 126:405-411. [PMID: 30471565 DOI: 10.1016/j.bios.2018.11.010] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 11/03/2018] [Accepted: 11/10/2018] [Indexed: 01/22/2023]
Abstract
An integrated microfluidic device, consisting of a solid-phase extraction (SPE) unit for metal ion pretreatment, a micropump, a micromixer, and a detachable graphene oxide quantum dot (GOQD) array chip was constructed for selective and sensitive detection of As3+, Cd2+, and Pb2+. The entire process could be sequentially and automatically completed by actuating a pneumatic micropump. Effect of the pH for metal ion capture and pumping scheme for recovery efficiency were investigated on a chip. The ion As3+, Cd2+, and Pb2+ whose concentrations ranged from 10-2 µM to 102 µM were successfully recovered with high efficiency over 80%. Monoplex and multiplex detection of As3+, Cd2+, and Pb2+ were then executed on a GOQD array chip. The target metal ions were specifically captured on the DNA aptamer linked GOQD array, which results in the fluorescence quenching of GOQD due to the electron transfer from the GOQD to metal ions under the laser irradiation. The proposed integrated SPE-GOQD array based microdevice could perform As3+, Cd2+, and Pb2+ detection with detection limits of 5.03 nM, 41.1 nM, and 4.44 nM, respectively. Simultaneous multiplex detection for binary or ternary mixture of As3+, Cd2+, and Pb2+ was performed, and the proposed integrated microdevice also showed high recovery values ranging from 83.52% to 128.3% from the environmental samples.
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Affiliation(s)
- Minsu Park
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
| | - Tae Seok Seo
- Department of Chemical Engineering, College of Engineering, Kyung Hee University, 1 Seochon-dong, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea.
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16
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de Araujo WR, Cardoso TM, da Rocha RG, Santana MH, Muñoz RA, Richter EM, Paixão TR, Coltro WK. Portable analytical platforms for forensic chemistry: A review. Anal Chim Acta 2018; 1034:1-21. [DOI: 10.1016/j.aca.2018.06.014] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Revised: 05/18/2018] [Accepted: 06/07/2018] [Indexed: 01/28/2023]
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17
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Park YM, Lim SY, Shin SJ, Kim CH, Jeong SW, Shin SY, Bae NH, Lee SJ, Na J, Jung GY, Lee TJ. A film-based integrated chip for gene amplification and electrochemical detection of pathogens causing foodborne illnesses. Anal Chim Acta 2018; 1027:57-66. [DOI: 10.1016/j.aca.2018.03.061] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 03/26/2018] [Indexed: 01/30/2023]
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18
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Han J, Gan W, Zhuang B, Sun J, Zhao L, Ye J, Liu Y, Li CX, Liu P. A fully integrated microchip system for automated forensic short tandem repeat analysis. Analyst 2018; 142:2004-2012. [PMID: 28513665 DOI: 10.1039/c7an00295e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have successfully developed an integrated microsystem that combines two plastic microchips for DNA extraction and PCR amplification with a glass capillary array electrophoresis chip together in a compact control and detection instrument for automated forensic short tandem repeat (STR) analysis. DNA extraction followed by an "in situ PCR" was conducted in a single reaction chamber of the microchip based on a filter paper-based extraction methodology. PCR products were then mixed with sizing standards by an injection electrode and injected into the electrophoresis chip for four-color confocal fluorescence detection. The entire STR analysis can be completed in about two hours without any human intervention. Since the 15-plex STR system has a more stringent requirement for PCR efficiency, we optimized the structure of the plastic DNA extraction and amplification chip, in which the reaction chamber was formed by sandwiching a hollow structure layer with two blank cover layers, to reduce the adsorption of PCR reagents to the surfaces. In addition, PCR additives, bovine serum albumin, poly(ethylene glycol), and more magnesium chloride were included into the on-chip multiplex STR system. The limit-of-detection study demonstrated that our microsystem was able to produce full 15-plex STR profiles from 3.75 ng standard K562 DNA. Buccal swab and whole blood samples were also successfully typed by our system, validating the feasibility of performing rapid DNA typing in a "sample-in-answer-out" manner for on-site forensic human identification.
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Affiliation(s)
- Junping Han
- Department of Biomedical Engineering, School of Medicine, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Tsinghua University, Beijing, 100084, China.
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19
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Portable vibration-assisted filtration device for on-site isolation of blood cells or pathogenic bacteria from whole human blood. Talanta 2018; 179:207-212. [DOI: 10.1016/j.talanta.2017.09.075] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Revised: 09/27/2017] [Accepted: 09/27/2017] [Indexed: 12/16/2022]
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20
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21
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You JB, Kim YT, Lee KG, Choi Y, Choi S, Kim CH, Kim KH, Chang SJ, Lee TJ, Lee SJ, Im SG. Surface-Modified Mesh Filter for Direct Nucleic Acid Extraction and its Application to Gene Expression Analysis. Adv Healthc Mater 2017; 6. [PMID: 28714572 DOI: 10.1002/adhm.201700642] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Indexed: 12/23/2022]
Abstract
Rapid and convenient isolation of nucleic acids (NAs) from cell lysate plays a key role for onsite gene expression analysis. Here, this study achieves one-step and efficient capture of NA directly from cell lysate by developing a cationic surface-modified mesh filter (SMF). By depositing cationic polymer via vapor-phase deposition process, strong charge interaction is introduced on the surface of the SMF to capture the negatively charged NAs. The NA capturing capability of SMF is confirmed by X-ray photoelectron spectroscopy, fluorescent microscopy, and zeta potential measurement. In addition, the genomic DNAs of Escherichia Coli O157:H7 can be extracted by the SMF from artificially infected food, and fluorescent signal is observed on the surface of SMF after amplification of target gene. The proposed SMF is able to provide a more simplified, convenient, and fast extraction method and can be applied to the fields of food safety testing, clinical diagnosis, or environmental pollutant monitoring.
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Affiliation(s)
- Jae Bem You
- Department of Chemical and Biomolecular Engineering; Korea Advanced Institute of Science and Technology (KAIST); Daejeon 34141 Republic of Korea
| | - Yong Tae Kim
- Department of Nano Bio Research; National NanoFab Center (NNFC); Daejeon 34141 Republic of Korea
| | - Kyoung G. Lee
- Department of Nano Bio Research; National NanoFab Center (NNFC); Daejeon 34141 Republic of Korea
| | - Yunho Choi
- Department of Chemical and Biomolecular Engineering; Korea Advanced Institute of Science and Technology (KAIST); Daejeon 34141 Republic of Korea
| | - Seongkyun Choi
- Department of Nano Bio Research; National NanoFab Center (NNFC); Daejeon 34141 Republic of Korea
| | - Chi Hyun Kim
- Department of Nano Bio Research; National NanoFab Center (NNFC); Daejeon 34141 Republic of Korea
| | - Kyung Hoon Kim
- Department of Nano Bio Research; National NanoFab Center (NNFC); Daejeon 34141 Republic of Korea
| | - Sung Jin Chang
- Department of Chemistry; Chung-Ang University; Seoul 06911 Republic of Korea
| | - Tae Jae Lee
- Department of Nano Bio Research; National NanoFab Center (NNFC); Daejeon 34141 Republic of Korea
| | - Seok Jae Lee
- Department of Nano Bio Research; National NanoFab Center (NNFC); Daejeon 34141 Republic of Korea
| | - Sung Gap Im
- Department of Chemical and Biomolecular Engineering; Korea Advanced Institute of Science and Technology (KAIST); Daejeon 34141 Republic of Korea
- Graphene Research Center in KAIST Institute for NanoCentury; Korea Advanced Institute of Science and Technology (KAIST); Daejeon 34141 Republic of Korea
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22
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Zhang L, Ding B, Chen Q, Feng Q, Lin L, Sun J. Point-of-care-testing of nucleic acids by microfluidics. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.07.013] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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23
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Lee JW, Lee D, Kim YT, Lee EY, Kim DH, Seo TS. Low-cost and facile fabrication of a paper-based capillary electrophoresis microdevice for pathogen detection. Biosens Bioelectron 2017; 91:388-392. [DOI: 10.1016/j.bios.2016.12.053] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 12/20/2016] [Accepted: 12/23/2016] [Indexed: 11/26/2022]
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24
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Rapid microfluidic analysis of a Y-STR multiplex for screening of forensic samples. Anal Bioanal Chem 2016; 409:939-947. [PMID: 27900418 DOI: 10.1007/s00216-016-9950-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 08/18/2016] [Accepted: 09/14/2016] [Indexed: 10/20/2022]
Abstract
In this paper, we demonstrate a rapid analysis procedure for use with a small set of rapidly mutating Y chromosomal short tandem repeat (Y-STR) loci that combines both rapid polymerase chain reaction (PCR) and microfluidic separation elements. The procedure involves a high-speed polymerase and a rapid cycling protocol to permit PCR amplification in 16 min. The resultant amplified sample is next analysed using a short 1.8-cm microfluidic electrophoresis system that permits a four-locus Y-STR genotype to be produced in 80 s. The entire procedure takes less than 25 min from sample collection to result. This paper describes the rapid amplification protocol as well as studies of the reproducibility and sensitivity of the procedure and its optimisation. The amplification process utilises a small high-speed thermocycler, microfluidic device and compact laptop, making it portable and potentially useful for rapid, inexpensive on-site genotyping. The four loci used for the multiplex were selected due to their rapid mutation rates and should proved useful in preliminary screening of samples and suspects. Overall, this technique provides a method for rapid sample screening of suspect and crime scene samples in forensic casework. Graphical abstract ᅟ.
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25
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Cox JO, DeCarmen TS, Ouyang Y, Strachan B, Sloane H, Connon C, Gibson K, Jackson K, Landers JP, Cruz TD. A novel, integrated forensic microdevice on a rotation-driven platform: Buccal swab to STR product in less than 2 h. Electrophoresis 2016; 37:3046-3058. [PMID: 27620618 DOI: 10.1002/elps.201600307] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/25/2016] [Accepted: 09/01/2016] [Indexed: 11/08/2022]
Abstract
This work describes the development of a novel microdevice for forensic DNA processing of reference swabs. This microdevice incorporates an enzyme-based assay for DNA preparation, which allows for faster processing times and reduced sample handling. Infrared-mediated PCR (IR-PCR) is used for STR amplification using a custom reaction mixture, allowing for amplification of STR loci in 45 min while circumventing the limitations of traditional block thermocyclers. Uniquely positioned valves coupled with a simple rotational platform are used to exert fluidic control, eliminating the need for bulky external equipment. All microdevices were fabricated using laser ablation and thermal bonding of PMMA layers. Using this microdevice, the enzyme-mediated DNA liberation module produced DNA yields similar to or higher than those produced using the traditional (tube-based) protocol. Initial microdevice IR-PCR experiments to test the amplification module and reaction (using Phusion Flash/SpeedSTAR) generated near-full profiles that suffered from interlocus peak imbalance and poor adenylation (significant -A). However, subsequent attempts using KAPA 2G and Pfu Ultra polymerases generated full STR profiles with improved interlocus balance and the expected adenylated product. A fully integrated run designed to test microfluidic control successfully generated CE-ready STR amplicons in less than 2 h (<1 h of hands-on time). Using this approach, high-quality STR profiles were developed that were consistent with those produced using conventional DNA purification and STR amplification methods. This method is a smaller, more elegant solution than current microdevice methods and offers a cheaper, hands-free, closed-system alternative to traditional forensic methods.
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Affiliation(s)
- Jordan O Cox
- Department of Forensic Science, Virginia Commonwealth University, Richmond, VA, USA
| | | | - Yiwen Ouyang
- Departments of Chemistry, Mechanical and Aerospace Engineering, & Pathology, University of Virginia, Charlottesville, VA, USA
| | - Briony Strachan
- Departments of Chemistry, Mechanical and Aerospace Engineering, & Pathology, University of Virginia, Charlottesville, VA, USA
| | - Hillary Sloane
- Departments of Chemistry, Mechanical and Aerospace Engineering, & Pathology, University of Virginia, Charlottesville, VA, USA
| | - Cathey Connon
- Department of Forensic Science, Virginia Commonwealth University, Richmond, VA, USA
| | - Kemper Gibson
- Department of Forensic Science, Virginia Commonwealth University, Richmond, VA, USA
| | - Kimberly Jackson
- Departments of Chemistry, Mechanical and Aerospace Engineering, & Pathology, University of Virginia, Charlottesville, VA, USA
| | - James P Landers
- Departments of Chemistry, Mechanical and Aerospace Engineering, & Pathology, University of Virginia, Charlottesville, VA, USA
| | - Tracey Dawson Cruz
- Department of Forensic Science, Virginia Commonwealth University, Richmond, VA, USA
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26
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Zhang L, Cai Q, Wiederkehr RS, Fauvart M, Fiorini P, Majeed B, Tsukuda M, Matsuno T, Stakenborg T. Multiplex SNP genotyping in whole blood using an integrated microfluidic lab-on-a-chip. LAB ON A CHIP 2016; 16:4012-4019. [PMID: 27714026 DOI: 10.1039/c6lc01046f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Pharmacogenetics has often been touted as a cornerstone for precision medicine as detailed knowledge of a specific genetic makeup may allow for accurate predictions of a patient's individual drug response. Still, the widespread use of genetic tests is limited as they remain expensive and cumbersome, requiring sophisticated tools and highly trained personnel. In order for pharmacogenetics to reach its full potential, more cost-effective and easily accessible genotyping methods are desired. To meet these challenges, we present a silicon-based integrated microsystem for the detection of multiple single nucleotide polymorphisms (SNPs) directly from human blood. The device combines a blood lysis chamber, a cross-flow filter, a T-junction mixer, and a microreactor for quantitative polymerase chain reaction (qPCR). Using this device, successful on-chip genotyping of two clinically relevant SNPs in human CYP2C9 gene was demonstrated with TaqMan assays, starting from blood. The two SNPs were detected simultaneously by introducing a sequence of plugs, each containing a different set of primers and probes. The method can be easily extended to detect several SNPs. The microsystem described here offers a rapid, reproducible, and accurate sample-to-answer technology enabling multiplex SNP profiling in point-of-care settings, bringing pharmacogenetics-based precision medicine a step closer to reality.
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Affiliation(s)
- L Zhang
- Department of Life Science Technology, imec, Leuven, 3000, Belgium.
| | - Q Cai
- Department of Life Science Technology, imec, Leuven, 3000, Belgium.
| | - R S Wiederkehr
- Department of Life Science Technology, imec, Leuven, 3000, Belgium.
| | - M Fauvart
- Department of Life Science Technology, imec, Leuven, 3000, Belgium.
| | - P Fiorini
- Department of Life Science Technology, imec, Leuven, 3000, Belgium.
| | - B Majeed
- Department of Life Science Technology, imec, Leuven, 3000, Belgium.
| | - M Tsukuda
- Sensing Technology Research Group, Advanced Research Division, Panasonic Corporation, Kyoto, 619-0237, Japan
| | - T Matsuno
- Sensing Solution Development Center, Corporate Engineering Division, Automotive & Industrial Systems Company, Panasonic Corporation, Kyoto, 619-0237, Japan
| | - T Stakenborg
- Department of Life Science Technology, imec, Leuven, 3000, Belgium.
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27
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Lee D, Kim YT, Lee JW, Kim DH, Seo TS. An integrated slidable direct polymerase chain reaction-capillary electrophoresis microdevice for rapid Y chromosome short tandem repeat analysis. KOREAN J CHEM ENG 2016. [DOI: 10.1007/s11814-016-0103-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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