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Almayahi BA, Ali AH. Fabrication of biosensor for the assessment of radon and lead levels in the blood. Heliyon 2023; 9:e19591. [PMID: 37681124 PMCID: PMC10480637 DOI: 10.1016/j.heliyon.2023.e19591] [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: 02/23/2023] [Revised: 08/27/2023] [Accepted: 08/28/2023] [Indexed: 09/09/2023] Open
Abstract
This study aimed to develop and test a biosensor for detecting radioactive radon gas and lead ions in blood samples collected from donors in Iraq. The biosensor was made up of aptamer, acetic acid, malachite green, and TRIS-HAC, and results were measured using a fluorescence spectrophotometer. This study found that 222Rn in the blood varied between individuals, with higher levels in males and smokers, and the highest concentration found in a male patient with cancer. The biosensor used to detect 222Rn in the blood was effective, sensitive, and low-cost, and the levels detected were within the limits set by the WHO. The study also looked at pb+2, a toxic metal, and found that levels were within permissible limits. The biosensor was also effective in detecting pb+2. The correlations between the variables are generally weak to moderate, and there are some negative relationships between humidity and other variables. There are also some strong positive relationships between temperature (Tin) and temperature (Tout). The results suggest that these variables are not strongly correlated with each other, which is an important finding for understanding their potential effects on health outcomes. However, further validation and testing may be necessary before its widespread use in clinical settings. This study highlights the importance of monitoring these substances in the blood, especially for individuals with occupational exposure to radiation. The biosensor was found to be sensitive, cost-effective, fast to manufacture, and efficient compared to other detection devices. Therefore, the study recommends the use of this biosensor for measuring radon and lead ions in blood samples. The biosensor used in this study could be a useful tool for such monitoring.
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Affiliation(s)
- Basim A. Almayahi
- Department of Physics, Faculty of Science, University of Kufa, Najaf, Iraq
- Department of Physics, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Amjad H. Ali
- Directorate General of Education in Najaf Governorate, Najaf, Iraq
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2
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Nguyen VD, Nguyen HQ, Bui KH, Ko YS, Park BJ, Seo TS. A handheld-type total integrated capillary electrophoresis system for SARS-CoV-2 diagnostics: Power, fluorescence detection, and data analysis by smartphone. Biosens Bioelectron 2022; 195:113632. [PMID: 34571485 DOI: 10.1016/j.bios.2021.113632] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/09/2021] [Accepted: 09/11/2021] [Indexed: 12/23/2022]
Abstract
A micro-capillary electrophoresis (μCE) system is one of the widely adopted techniques in the molecular diagnostics and DNA sequencing due to the benefits of high resolution, rapid analysis, and low reagent consumption, but due to the requirements of bulky high-power suppliers and an expensive laser-induced fluorescence detector module, the conventional set-up of μCE system is not adequate for point-of-care (POC) molecular diagnostics. In this study, we constructed a miniaturized and integrated μCE system which can be manipulated by a smartphone. The smartphone not only powers two boost converters and an excited laser, but also controls the relay for the power switch. Moreover, the complementary metal-oxide-semiconductor (CMOS) camera of the smartphone was used for detecting the fluorescence signal of amplicons amplified with reverse transcription-polymerase chain reaction (RT-PCR). We also developed a web-based application so that the raw data of the recorded fluorescence intensity versus the running time can display typical capillary electropherograms on the smartphone. The total size of the hand-held μCE system was 9.6 cm [Width] × 22 cm [Length] × 15.5 cm [Height], and the weight was ∼1 kg, which is suitable for POC DNA testing. In the integrated smartphone-associated μCE system, we could accurately analyze two genes of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), namely N gene and S gene along with two bracket ladders in 6 min to identify SARS-CoV-2. Such an advanced μCE platform can be applied for a variety of on-site molecular diagnostics fields with user-friendliness.
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Affiliation(s)
- Van Dan Nguyen
- Department of Chemical Engineering (BK21 FOUR Integrated Engineering Program), Kyung Hee University, 1 Seochon-dong, Giheung-gu, Yongin-si, Gyeonggi-do, 17140, Republic of Korea
| | - Huynh Quoc Nguyen
- Department of Chemical Engineering (BK21 FOUR Integrated Engineering Program), Kyung Hee University, 1 Seochon-dong, Giheung-gu, Yongin-si, Gyeonggi-do, 17140, Republic of Korea
| | - Khang Hoang Bui
- Department of Chemical Engineering (BK21 FOUR Integrated Engineering Program), Kyung Hee University, 1 Seochon-dong, Giheung-gu, Yongin-si, Gyeonggi-do, 17140, Republic of Korea
| | - Young Soo Ko
- Department of Chemical Engineering and Department of Future Convergence Engineering, Kongju National University, Cheonan City, Chungcheongnam-do, Republic of Korea
| | - Bum Jun Park
- Department of Chemical Engineering (BK21 FOUR Integrated Engineering Program), Kyung Hee University, 1 Seochon-dong, Giheung-gu, Yongin-si, Gyeonggi-do, 17140, Republic of Korea
| | - Tae Seok Seo
- Department of Chemical Engineering (BK21 FOUR Integrated Engineering Program), Kyung Hee University, 1 Seochon-dong, Giheung-gu, Yongin-si, Gyeonggi-do, 17140, Republic of Korea.
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3
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He Q, Chen M, Lin X, Chen Z. Allele-specific PCR with a novel data processing method based on difference value for single nucleotide polymorphism genotyping of ALDH2 gene. Talanta 2020; 220:121432. [PMID: 32928436 DOI: 10.1016/j.talanta.2020.121432] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 07/11/2020] [Accepted: 07/16/2020] [Indexed: 12/27/2022]
Abstract
Single nucleotide polymorphism (SNP) analysis based on allele-specific polymerase chain reaction (AS-PCR) is a relatively effective and economical method compared with other genotyping technologies such as DNA sequencing, DNA hybridization and isothermal amplification strategies. But AS-PCR is limited by its labor-intensive optimization of reaction parameters and time-consuming result assessment. In this study, we put forward a novel idea of data processing to address this problem. SNP analysis was accomplished by AS-PCR with endpoint electrochemical detection. For each sample, two separate reactions were run simultaneously with two sets of allele-specific primers (wild-type primers for W system and mutant primers for M system). We measured their redox current signals on screen-printed electrodes once AS-PCR finished and calculated the difference value of current signals between two systems to determine the genotyping result. Based on the difference value of fluorescent signals, real-time fluorescent PCR was used to study reaction parameters in AS-PCR. With screened parameters, we obtained the genotyping results within 50 min. 36 hair-root samples from volunteers were analyzed by our method and their genotypes of ALDH2 gene (encoding aldehyde dehydrogenase 2) were totally identical with data from commercialized sequencing. Our work first employed difference value between two reaction systems to differentiate allele and provided a novel idea of data processing in AS-PCR method. It is able to promote the quick analysis of SNP in the fields of health monitor, disease precaution, and personalized diagnosis and treatment.
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Affiliation(s)
- Qidi He
- School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou, 510006, PR China
| | - Meng Chen
- School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou, 510006, PR China
| | - Xiangan Lin
- Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, PR China.
| | - Zuanguang Chen
- School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou, 510006, PR China.
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4
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Paper-based device providing visual genetic signatures for precision medicine: application to breast cancer. Anal Bioanal Chem 2019; 411:3769-3776. [DOI: 10.1007/s00216-019-01838-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 03/14/2019] [Accepted: 04/09/2019] [Indexed: 12/14/2022]
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5
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Xu FL, Ding M, Xia X, Wu X, Zhang JJ, Xing JX, Xuan JF, Yao J, Wang BJ. Analysis and interpretation of mixture DNA using AS-PCR of mtDNA. Electrophoresis 2019; 40:1591-1599. [PMID: 30740746 DOI: 10.1002/elps.201800432] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/30/2018] [Accepted: 02/03/2019] [Indexed: 11/11/2022]
Abstract
Semi-nested PCR with allele-specific (AS) primers and sequencing of mitochondrial DNA (mtDNA) were performed to analyze and interpret DNA mixtures, especially when biological materials were degraded or contained a limited amount of DNA. SNP-STR markers were available to identify the minor DNA component using AS-PCR; moreover, SNPs in mtDNA could be used when the degraded or limited amounts of DNA mixtures were not successful with SNP-STR markers. Five pairs of allele-specific primers were designed based on three SNPs (G15043A, T16362C, and T16519C). The sequence of mtDNA control region of minor components was obtained using AS-PCR and sequencing. Sequences of the amplification fragments were aligned and compared with the sequences of known suspects or databases. When this assay was used with the T16362C and T16519C SNPs, we found it to be highly sensitive for detecting small amounts of DNA (∼30 pg) and analyzing DNA mixtures of two contributors, even at an approximately 1‰ ratio of minor and major components. An exception was tests based on the SNP G15043A, which required approximately 300 pg of a 1% DNA mixture. In simulated three contributor DNA mixtures (at rate of 1:1:1), control region fragments from each contributor were detected and interpreted. AS-PCR combined with semi-nested PCR was successfully used to identify the mtDNA control region of each contributor, providing biological evidence for excluding suspects in forensic cases, especially when biological materials were degraded or had a limited amount of DNA.
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Affiliation(s)
- Feng-Ling Xu
- School of Forensic Medicine, China Medical University, Shenyang, P. R. China
| | - Mei Ding
- School of Forensic Medicine, China Medical University, Shenyang, P. R. China
| | - Xi Xia
- School of Forensic Medicine, China Medical University, Shenyang, P. R. China
| | - Xue Wu
- School of Forensic Medicine, China Medical University, Shenyang, P. R. China
| | - Jing-Jing Zhang
- School of Forensic Medicine, China Medical University, Shenyang, P. R. China
| | - Jia-Xin Xing
- School of Forensic Medicine, China Medical University, Shenyang, P. R. China
| | - Jin-Feng Xuan
- School of Forensic Medicine, China Medical University, Shenyang, P. R. China
| | - Jun Yao
- School of Forensic Medicine, China Medical University, Shenyang, P. R. China
| | - Bao-Jie Wang
- School of Forensic Medicine, China Medical University, Shenyang, P. R. China
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6
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Lian DS, Zeng HS. Capillary Electrophoresis Based on Nucleic Acid Detection as Used in Food Analysis. Compr Rev Food Sci Food Saf 2017; 16:1281-1295. [DOI: 10.1111/1541-4337.12297] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 07/14/2017] [Accepted: 07/19/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Dong-Sheng Lian
- Guangzhou Women and Children's Medical Center of Guangzhou Medical University; NO. 9 at Jinsui Rd., Tianhe District Guangzhou Guangdong China
| | - Hua-Song Zeng
- Guangzhou Women and Children's Medical Center of Guangzhou Medical University; NO. 9 at Jinsui Rd., Tianhe District Guangzhou Guangdong China
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Anazawa T, Uchiho Y, Yokoi T, Chalkidis G, Yamazaki M. A simple and highly sensitive spectroscopic fluorescence-detection system for multi-channel plastic-microchip electrophoresis based on side-entry laser-beam zigzag irradiation. LAB ON A CHIP 2017; 17:2235-2242. [PMID: 28585967 DOI: 10.1039/c7lc00448f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A five-color fluorescence-detection system for eight-channel plastic-microchip electrophoresis was developed. In the eight channels (with effective electrophoretic lengths of 10 cm), single-stranded DNA fragments were separated (with single-base resolution up to 300 bases within 10 min), and seventeen-loci STR genotyping for forensic human identification was successfully demonstrated. In the system, a side-entry laser beam is passed through the eight channels (eight A channels), with alternately arrayed seven sacrificial channels (seven B channels), by a technique called "side-entry laser-beam zigzag irradiation." Laser-induced fluorescence from the eight A channels and Raman-scattered light from the seven B channels are then simultaneously, uniformly, and spectroscopically detected, in the direction perpendicular to the channel array plane, through a transmission grating and a CCD camera. The system is therefore simple and highly sensitive. Because the microchip is fabricated by plastic-injection molding, it is inexpensive and disposable and thus suitable for actual use in various fields.
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Affiliation(s)
| | | | | | | | - Motohiro Yamazaki
- Hitachi High-Technologies Corporation, Science & Medical Systems Business Group, Japan
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8
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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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9
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Total integrated slidable and valveless solid phase extraction-polymerase chain reaction-capillary electrophoresis microdevice for mini Y chromosome short tandem repeat genotyping. Biosens Bioelectron 2016; 78:489-496. [DOI: 10.1016/j.bios.2015.11.079] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 11/17/2015] [Accepted: 11/26/2015] [Indexed: 11/21/2022]
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10
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Genotyping of single nucleotide polymorphisms related to attention-deficit hyperactivity disorder. Anal Bioanal Chem 2016; 408:2339-45. [DOI: 10.1007/s00216-016-9332-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 01/08/2016] [Accepted: 01/12/2016] [Indexed: 01/04/2023]
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11
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12
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Real-time fluorescence ligase chain reaction for sensitive detection of single nucleotide polymorphism based on fluorescence resonance energy transfer. Biosens Bioelectron 2015. [DOI: 10.1016/j.bios.2015.07.028] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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13
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Kim YT, Lee D, Heo HY, Kim DH, Seo TS. An integrated slidable and valveless microdevice with solid phase extraction, polymerase chain reaction, and immunochromatographic strip parts for multiplex colorimetric pathogen detection. LAB ON A CHIP 2015; 15:4148-4155. [PMID: 26394907 DOI: 10.1039/c5lc00801h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A total integrated genetic analysis microsystem was developed, which consisted of solid phase extraction (SPE), polymerase chain reaction (PCR), and immunochromatographic strip (ICS) parts for multiplex colorimetric detection of pathogenic Staphylococcus aureus (S. aureus) and Escherichia coli O157:H7 (E. coli O157:H7) on a portable genetic analyzer. Utilizing a slidable chamber, which is a movable glass wafer, complex microvalves could be eliminated for fluidic control in the microchannel, which could simplify the chip design and chip operation. The integrated slidable microdevice was composed of 4 layers: a 4-point Pt/Ti resistance temperature detector (RTD) wafer, a micro-patterned channel wafer, a 2 μL volume slidable chamber, and an ICS. The entire process from the DNA extraction in the SPE chamber to the detection of the target gene expression by the ICS was serially performed by simply sliding the slidable chamber from one part to another functional part. The total process for multiplex pathogenic S. aureus and E. coli O157:H7 detection on the integrated slidable microdevice was accomplished within 55 min with a detection limit of 5 cells. Furthermore, spiked bacteria samples in milk were also successfully analysed on the portable genetic analysis microsystem with sample-in-answer-out capability. The proposed total integrated microsystem is adequate for point-of-care DNA testing in that no microvalves and complex tubing systems are required due to the use of the slidable chamber and the bulky and expensive fluorescence or electrochemical detectors are not necessary due to the ICS based colorimetric detection.
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Affiliation(s)
- Yong Tae Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Korea.
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Cho M, Chung S, Kim YT, Jung JH, Kim DH, Seo TS. A fully integrated microdevice for biobarcode assay based biological agent detection. LAB ON A CHIP 2015; 15:2744-2748. [PMID: 26032690 DOI: 10.1039/c5lc00355e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
An integrated microdevice, consisting of a micropump, a passive mixer, a magnetic separation chamber, and a microcapillary electrophoretic channel, was constructed for biobarcode assay based multiplex biological agent detection in a sample-to-answer-out manner within 30 min with high sensitivity.
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Affiliation(s)
- Minkyung Cho
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea.
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15
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Kim YT, Heo HY, Oh SH, Lee SH, Kim DH, Seo TS. Microchip-based forensic short tandem repeat genotyping. Electrophoresis 2015; 36:1728-37. [DOI: 10.1002/elps.201400477] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2014] [Revised: 03/06/2015] [Accepted: 04/20/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Yong Tae Kim
- Department of Chemical and Biomolecular Engineering (BK21 plus program), Institute for the BioCentury; Korea Advanced Institute of Science and Technology (KAIST); Daejeon Republic of Korea
| | - Hyun Young Heo
- Department of Chemical and Biomolecular Engineering (BK21 plus program), Institute for the BioCentury; Korea Advanced Institute of Science and Technology (KAIST); Daejeon Republic of Korea
| | - Shin Hye Oh
- DNA Analysis Laboratory, Division of Forensic DNA; Supreme Prosecutors’ Office; Seoul Republic of Korea
| | - Seung Hwan Lee
- DNA Analysis Laboratory, Division of Forensic DNA; Supreme Prosecutors’ Office; Seoul Republic of Korea
| | - Do Hyun Kim
- Department of Chemical and Biomolecular Engineering (BK21 plus program), Institute for the BioCentury; Korea Advanced Institute of Science and Technology (KAIST); Daejeon Republic of Korea
| | - Tae Seok Seo
- Department of Chemical and Biomolecular Engineering (BK21 plus program), Institute for the BioCentury; Korea Advanced Institute of Science and Technology (KAIST); Daejeon Republic of Korea
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Cao JT, Wang H, Ren SW, Chen YH, Liu YM. Dual-signal amplification strategy for ultrasensitive chemiluminescence detection of PDGF-BB in capillary electrophoresis. Biomed Chromatogr 2015; 29:1866-70. [PMID: 26031509 DOI: 10.1002/bmc.3508] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 04/27/2015] [Accepted: 05/05/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Jun-Tao Cao
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang 464000 China
| | - Hui Wang
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang 464000 China
| | - Shu-Wei Ren
- Xinyang Central Hospital; Xinyang 464000 China
| | | | - Yan-Ming Liu
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang 464000 China
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Shi L, Chu Z, Liu Y, Jin W, Chen X. An ultrasensitive electrochemical sensing platform for Hg2+ based on a density controllable metal-organic hybrid microarray. Biosens Bioelectron 2014; 54:165-70. [DOI: 10.1016/j.bios.2013.10.074] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 10/30/2013] [Accepted: 10/31/2013] [Indexed: 11/28/2022]
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18
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Chung S, Cho M, Hwan Jung J, Seok Seo T. Highly sensitive detection of cancer cells based on the DNA barcode assay and microcapillary electrophoretic analysis. Electrophoresis 2014; 35:1504-8. [DOI: 10.1002/elps.201400001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 02/07/2014] [Accepted: 02/08/2014] [Indexed: 11/12/2022]
Affiliation(s)
- Soyi Chung
- Department of Chemical and Biomolecular Engineering (BK21 Program); Korea Advanced Institute of Science and Technology (KAIST); Daejeon Republic of Korea
| | - Minkyung Cho
- Department of Chemical and Biomolecular Engineering (BK21 Program); Korea Advanced Institute of Science and Technology (KAIST); Daejeon Republic of Korea
| | - Jae Hwan Jung
- Department of Chemical and Biomolecular Engineering (BK21 Program); Korea Advanced Institute of Science and Technology (KAIST); Daejeon Republic of Korea
| | - Tae Seok Seo
- Department of Chemical and Biomolecular Engineering (BK21 Program); Korea Advanced Institute of Science and Technology (KAIST); Daejeon Republic of Korea
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19
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Integration of sample pretreatment, μPCR, and detection for a total genetic analysis microsystem. Mikrochim Acta 2013. [DOI: 10.1007/s00604-013-1128-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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20
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Detection of BCR–ABL using one step reverse transcriptase- polymerase chain reaction and microchip electrophoresis. Methods 2013; 64:250-4. [DOI: 10.1016/j.ymeth.2013.05.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 05/16/2013] [Accepted: 05/17/2013] [Indexed: 12/11/2022] Open
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21
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Liao HW, Tsai IL, Chen GY, Kuo CT, Wei MF, Hwang TJ, Chen WJ, Shen LJ, Kuo CH. Simultaneous detection of single nucleotide polymorphisms and copy number variations in the CYP2D6 gene by multiplex polymerase chain reaction combined with capillary electrophoresis. Anal Chim Acta 2013; 763:67-75. [DOI: 10.1016/j.aca.2012.12.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Revised: 11/28/2012] [Accepted: 12/03/2012] [Indexed: 02/03/2023]
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22
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Kim YT, Choi JY, Chen Y, Seo TS. Integrated slidable and valveless polymerase chain reaction–capillary electrophoresis microdevice for pathogen detection. RSC Adv 2013. [DOI: 10.1039/c3ra41402g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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23
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Choi JY, Kim YT, Byun JY, Ahn J, Chung S, Gweon DG, Kim MG, Seo TS. An integrated allele-specific polymerase chain reaction-microarray chip for multiplex single nucleotide polymorphism typing. LAB ON A CHIP 2012; 12:5146-5154. [PMID: 23037501 DOI: 10.1039/c2lc40878c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
An integrated allele-specific polymerase chain reaction (AS PCR) and microarray chip has been developed for multiplex single nucleotide polymorphism (SNP) typing on a portable genetic analyzer instrumentation. We applied the integrated PCR-microarray system for on-site Hanwoo (Korean indigenous beef cattle) identification. Eleven sets of primers were designed, among which ten sets of primers targeted ten SNP loci to discriminate Hanwoo from the imported beef cattle and one primer set was used as a positive PCR control. The AS PCR for multiplex SNP typing was conducted on a glass-based microchip consisting of four layers: a microchannel plate for microfluidic control, a Pt-electrode plate for a resistance temperature detector (RTD), a poly(dimethylsiloxane) (PDMS) membrane and a manifold glass for micropump and microvalve function. The resultant AS PCR products were mixed with a hybridization buffer in a micromixer channel through the micropumping operation, and then the microarray assay was performed in the downstream process. Eleven duplicate probes were spotted in a glass slide, which was connected at the end of the micromixer channel unit. When the mixed solution was injected into the disposable microarray chip, pneumatically actuated micropumping was executed to speed up the hybridization process by inducing the convective flow. The fluorescence signals on each spot were monitored by a miniaturized fluorescence scanner, and the Hanwoo was verified by detecting the number of fluorescent spots with three or fewer among eleven. An integrated portable PCR-microarray genetic analysis microsystem was first demonstrated for rapid, accurate, and on-site multiplex SNP typing to differentiate animal species.
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Affiliation(s)
- Jong Young Choi
- Department of Chemical and Biomolecular Engineering (BK21 Program), Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
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