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Sun Y, Zhang S, Qi L, Zhang X, Yang M, Guo Z, Wang Z, Du Y. Advancing Multiple Detection in RT-LAMP with a Specific Probe Assembled from Plural Three-Way-Junction Structures. Anal Chem 2023; 95:17808-17817. [PMID: 37972997 DOI: 10.1021/acs.analchem.3c03877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
The timely detection of diseases and the accurate identification of pathogens require the development of efficient and reliable diagnostic methods. In this study, we have developed a novel specific multivariate probe termed MRTFP (multivariate real-time fluorescent probe) by assembling strand exchange three-way-junction (3WJ) structures. The 3WJ structures were incorporated into a four-angle probe (FP) and a hexagonal probe (HP), to target the multivariate genes of Salmonella. The FP and HP enable single-step and multiplexed detection in RT-LAMP (real-time loop-mediated isothermal amplification) with exceptional sensitivity and specificity. Encouragingly, real food samples contaminated with Salmonella (Salmonella enteritidis and Salmonella typhimurium) can be readily identified and distinguished with a minimum detectable concentration (MDC) of 103 CFU/mL without the need for further culture. The introduction of MRTFP allows for simultaneous detection of dual or three targets in a single tube for LAMP, thereby improving detection efficiency. The MRTFP simplifies the design of robust multivariate probes, exhibits excellent stability, and avoids interference from multiple probe units, offering significant potential for the development of specific probes for efficient and accurate disease detection and pathogen identification.
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Affiliation(s)
- Yi Sun
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Sicai Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, Jilin 133002, China
| | - Lijuan Qi
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Xiaojun Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Meiting Yang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Zhijun Guo
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, Jilin 133002, China
| | - Zhenxin Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Yan Du
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
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2
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Xu L, Lu S, Wang H, Xu H, Ye BC. Dual-Recognition Triggered Proximity Ligation Combined with a Rolling Circle Amplification Strategy for Analysis of Exosomal Protein-Specific Glycosylation. Anal Chem 2023; 95:15745-15754. [PMID: 37842978 DOI: 10.1021/acs.analchem.3c03239] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
Exosomal surface glycan reveals the biological function and molecular information on the protein, especially in indicating the pathogenesis of certain diseases through monitoring of specific protein glycosylation accurately. However, in situ and nondestructive measurement techniques for certain Exosomal glycoproteins are still lacking. In this work, combined with on-chip purification, we designed a proximity ligation assay-induced rolling circle amplification (RCA) strategy for highly sensitive identification of Exosomal protein-specific glycosylation based on a couple of proximity probes to target Exosomal protein and the protein-specific glycosylation site. Benefiting from efficient separation, scalable dual-recognition, and proximity-triggered RCA amplification, the proposed strategy could convert different protein-specific glycan levels to prominent changes in absorbance signals, resulting in accurate quantification of specific glycosylated Exosomal protein. When detecting the glycosylated PD-L1 on MDA-MB-231 exosomes and glycosylated PTK7 on HepG2 exosomes, the detection limits were calculated to be as low as 1.04 × 104 and 2.759 × 103 particles/mL, respectively. In addition, we further expand the dual-recognition site to investigate the potential correlation of Exosomal glycosylation with polarization of THP-1 cells toward the tumor-suppressive M1 phenotype. Overall, this strategy provides a universal tool for multiple analyses of diverse protein-specific glycosylated exosomes, exhibiting enormous potential to explore exosome function and search for new early diagnosis markers.
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Affiliation(s)
- Lijun Xu
- Lab of Biosystem and Microanalysis, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Siyu Lu
- Lab of Biosystem and Microanalysis, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hua Wang
- Department of Laboratory Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Huiying Xu
- Lab of Biosystem and Microanalysis, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Bang-Ce Ye
- Lab of Biosystem and Microanalysis, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
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3
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Toft CJ, Sorenson AE, Schaeffer PM. Rise of the terminator protein tus: A versatile tool in the biotechnologist's toolbox. Anal Chim Acta 2022; 1213:339946. [DOI: 10.1016/j.aca.2022.339946] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/10/2022] [Accepted: 05/12/2022] [Indexed: 02/07/2023]
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4
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Kong L, Wang X, Ma C, Zhou S, Sun X, Jiang D, Wang T, Wan H, Wang P. A robust colorimetric aptasensor for the label-free detection of marine toxins based on tyrosine-capped gold nanoparticles. Analyst 2022; 147:5314-5323. [DOI: 10.1039/d2an01394k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Tyrosine-capped AuNPs decrease the interaction between targets and AuNPs, presenting better robustness than traditional Cit-AuNPs. Utilizing the superior features, a label-free aptasensor is developed for marine toxin detection for the first time.
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Affiliation(s)
- Liubing Kong
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Ministry of Education, Department of Biomedical Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Xinyi Wang
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Ministry of Education, Department of Biomedical Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Chiyu Ma
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Ministry of Education, Department of Biomedical Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Shuqi Zhou
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Ministry of Education, Department of Biomedical Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Xianyou Sun
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Ministry of Education, Department of Biomedical Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Deming Jiang
- Innovation Center for Smart Medical Technologies & Devices, Binjiang Institute of Zhejiang University, Hangzhou, 310053, China
| | - Tianxing Wang
- Zhejiang, e-Linkcare Meditech co., LTD, No.30 Baita Tongjiang Road, Taizhou, Zhejiang, 310011, China
| | - Hao Wan
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Ministry of Education, Department of Biomedical Engineering, Zhejiang University, Hangzhou, 310027, China
- Innovation Center for Smart Medical Technologies & Devices, Binjiang Institute of Zhejiang University, Hangzhou, 310053, China
| | - Ping Wang
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Ministry of Education, Department of Biomedical Engineering, Zhejiang University, Hangzhou, 310027, China
- Innovation Center for Smart Medical Technologies & Devices, Binjiang Institute of Zhejiang University, Hangzhou, 310053, China
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5
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Zhou H, Ding K, Li B, Wang H, Zhang N, Liu J. Proximity binding induced nucleic acid cascade amplification strategy for ultrasensitive homogeneous detection of PSA. Anal Chim Acta 2021; 1186:339123. [PMID: 34756258 DOI: 10.1016/j.aca.2021.339123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 09/18/2021] [Accepted: 09/25/2021] [Indexed: 12/15/2022]
Abstract
In this work, based on the powerful cycle amplification cascades of proximity hybridization-induced hybridization chain reaction and catalyzed hairpin assembly, we engineered a nonenzymatic and ultrasensitive method which combined the Mg2+-DNAzyme recycling signal amplification for the analysis of the human prostate specific antigen. Herein, we adopted PSA-conjugates as triggers in the self-assembly process of two hairpin DNAs (H1, H2) into the products of the CHA which could activate the HCR to induce repeated hybridization. And both ends of each adjacent sequence of the HCR products could form a unit of Mg2+-DNAzyme which in presence of cofactor Mg2+ could recognize and cyclically cleave the hairpin probes in the solution and thus generate observably enhanced fluorescent signal. Benefit from the nucleic acid circuit amplification strategy, PSA of concentration low to 0.73 pg mL-1 was detected in this system. This homogeneous sensing method in solution avoid the use of the sophisticated equipment and complex operation, as well as addition of artificial enzyme, thus greatly reducing the constraints and complexity of experimental conditions. Moreover, considering most protein biomarkers in serum don't have their corresponding aptamers, this sensing method provide a general sensing approach for homogeneous sensitive detection of these important protein biomarkers which transfer rough antigen-antibody interactivity to smart signal amplification sensing strategies, thus exhibiting a remarkable prospect in clinical application.
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Affiliation(s)
- Hong Zhou
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Kexin Ding
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Binxiao Li
- Department of Chemistry, Shanghai Stomatological Hospital, State Key Laboratory of Molecular Engineering of Polymers and Institute of Biomedical Sciences, Fudan University, Shanghai, 200433, PR China
| | - Haiyan Wang
- Department of Blood Transfusion, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266071, PR China
| | - Ningbo Zhang
- College of Agriculture and Forestry Science, Linyi University, Linyi, 276005, PR China.
| | - Jing Liu
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, Shandong, 266590, PR China.
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6
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Xu Z, Yin K, Ding X, Li Z, Sun X, Li B, Lalla RV, Gross R, Liu C. An integrated E-Tube cap for sample preparation, isothermal amplification and label-free electrochemical detection of DNA. Biosens Bioelectron 2021; 186:113306. [PMID: 33991846 PMCID: PMC8572321 DOI: 10.1016/j.bios.2021.113306] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 04/28/2021] [Accepted: 05/02/2021] [Indexed: 11/20/2022]
Abstract
A simple, disposable, and integrated electronic-tube cap (E-tube cap) for DNA detection at the point-of-care was designed, fabricated, and tested. The E-tube cap contains a 3D printed electrode substrate for DNA extraction and label-free pH sensing detection. One Flinders Technology Associates (Whatman FTA) membrane was incorporated into the 3D printed electrode substrate for the isolation, concentration, and purification of DNA. The E-tube cap with captured DNA by the membrane was inserted directly into a reaction tube for loop-mediated isothermal amplification (LAMP). The isothermal amplification process was monitored in real-time by a 3D printed electrochemical electrode coated with pH-sensitive material (carbon/iridium oxide layer). The pH sensing electrode showed an excellent linear response within the pH range of 6-9 with a slope of -31.32 ± 0.5 mV/pH at room temperature. The utility of the integrated E-tube cap was demonstrated by detecting the presence of lambda DNA spiked in saliva samples with a sensitivity of 100 copies per mL sample within 30 min. Such a simple, rapid, and affordable diagnostic device is particularly suitable for point-of-care molecular diagnostics of infectious diseases.
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Affiliation(s)
- Zhiheng Xu
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT, 06030, USA
| | - Kun Yin
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT, 06030, USA
| | - Xiong Ding
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT, 06030, USA
| | - Ziyue Li
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT, 06030, USA
| | - Xuanhao Sun
- Department of Physiology and Neurobiology, University of Connecticut, Storrs, CT, 06269, USA
| | - Baikun Li
- Department of Civil & Environmental Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Rajesh V Lalla
- Section of Oral Medicine, University of Connecticut Health Center, Farmington, CT, 06030, USA
| | - Robert Gross
- Department of Medicine (Infectious Diseases), University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, 19104, USA; Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Changchun Liu
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT, 06030, USA.
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7
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Zhang BY, Shi L, Ma XY, Liu L, Fu Y, Zhang XF. Advances in the Functional Nucleic Acid Biosensors for Detection of Lead Ions. Crit Rev Anal Chem 2021; 53:309-325. [PMID: 34304647 DOI: 10.1080/10408347.2021.1951648] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Lead ions (Pb2+) are destructive to the natural environment and public health, so the efficient detection of Pb2+ is particularly important. Although the instrumental analysis methods have high accuracy, they require high cost and precise operation, which limits their wide application. Therefore, many strategies have been extensively studied for detecting Pb2+ by biosensors. Functional nucleic acids have become an efficient tool in this field. This review focuses on the recent biosensors of detecting Pb2+ based on functional nucleic acids from 2010 to 2020, in which DNAzyme, DNA G-quadruplex and aptamer will be introduced. The biosensors are divided into three categories that colorimetric, fluorometric and electrochemical biosensors according to the different reported signals. The action mechanism and detection effect of each biosensor are explained. Finally, the present situation of nucleic acid biosensor for the detection of Pb2+ is summarized and the future research direction is prospected.
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Affiliation(s)
- Bu-Yue Zhang
- College of Chemical Engineering, North China University of Science and Technology, Tangshan, China
| | - Lei Shi
- College of Chemical Engineering, North China University of Science and Technology, Tangshan, China
| | - Xiao-Ying Ma
- College of Chemical Engineering, North China University of Science and Technology, Tangshan, China
| | - Lu Liu
- College of Chemical Engineering, North China University of Science and Technology, Tangshan, China
| | - Yao Fu
- College of Chemical Engineering, North China University of Science and Technology, Tangshan, China
| | - Xiu-Feng Zhang
- College of Chemical Engineering, North China University of Science and Technology, Tangshan, China
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8
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Zhou H, Yu Q, Wang H, Zhu W, Liu J, Wang Z. A general scattering proximity immunoassay with the formation of dimer of gold nanoparticle. Talanta 2021; 233:122515. [PMID: 34215130 DOI: 10.1016/j.talanta.2021.122515] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 04/02/2021] [Accepted: 05/09/2021] [Indexed: 11/29/2022]
Abstract
In this work, we structured a colorimetric ultrasensitive detection of carcinoembryonic antigen (CEA) based on a proximity hybridization-induced gold nanoparticles (Au NPs) dimers structure. Under the dark-field microscope, this method takes advantage of the distinctive and strong distance-relative localized surface plasmon resonance (LSPR) of Au NPs and their oriented assembly. DNA served as a medium showing wonderful flexibility to label antibody and Au NPs, and tune interparticle spacing as well. Two capture probes were formed by the integration of DNA labeled antibody (DNA1-Ab1 or DNA2-Ab2) and asymmetrically assembled DNA (DNA 3 or DNA 4)- Au NPs via partly hybridization between DNA sequences. In the presence of antigen, the reaction between target protein and capture probes could trigger the generation of immunocomplex which led to the proximity hybridization of the DNA1 and DNA2, and then change the distance of interparticle to form Au NP dimers and thus showed a different color under dark-field microscope. A limit of detection of 14.25 pg/mL was obtained for the detection of CEA, which indicated a promising sensing method in clinical diagnosis of protein biomarkers.
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Affiliation(s)
- Hong Zhou
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Qiao Yu
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, Shandong, 266071, PR China
| | - Haiyan Wang
- The Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266071, PR China
| | - Wenjing Zhu
- Department of Pharmacy, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao, Shandong, 266071, PR China
| | - Jing Liu
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, Shandong, 266590, PR China.
| | - Zonghua Wang
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, Shandong, 266071, PR China
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9
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Zhang H, Qiao B, Guo Q, Jiang J, Cai C, Shen J. A facile and label-free electrochemical aptasensor for tumour-derived extracellular vesicle detection based on the target-induced proximity hybridization of split aptamers. Analyst 2021; 145:3557-3563. [PMID: 32309839 DOI: 10.1039/d0an00066c] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Facile detection of tumour-derived extracellular vesicles (EVs) is crucial to cancer diagnosis. Herein, a facile and label-free electrochemical aptasensor was fabricated to detect tumour-derived EVs based on the target-induced proximity hybridization of split aptamers. In this assay, two designed oligonucleotide probes containing fragments of a protein tyrosine kinase-7 (PTK7) aptamer were used to recognize and capture EVs containing PTK7. In the presence of target EVs, the aptamer-target ternary complex could induce proximity hybridization and form a DNA duplex on the electrode. The DNA duplex could bind more electroactive Ru(NH3)63+ through electrostatic attraction, resulting in an increased cathodic current signal. By virtue of the excellent electrochemical signal reporter RuHex, the specificity of the aptamer and proximity ligation, a facile EV electrochemical aptasensor with a detection limit of 6.607 × 105 particles per mL was realized. Furthermore, this aptasensor showed good selectivity to distinguish different tumour-derived EVs and was applied to detect EVs in complex biological samples. The proposed electrochemical aptasensor can be further extended to the detection of other EVs, thus showing great potential in clinical diagnosis.
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Affiliation(s)
- Hui Zhang
- Jiangsu Key Laboratory of Biomedical Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China.
| | - Bin Qiao
- Jiangsu Key Laboratory of Biomedical Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China.
| | - Qunqun Guo
- Jiangsu Key Laboratory of Biomedical Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China.
| | - Juqian Jiang
- Jiangsu Key Laboratory of Biomedical Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China.
| | - Chenxin Cai
- Jiangsu Key Laboratory of Biomedical Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China.
| | - Jian Shen
- Jiangsu Key Laboratory of Biomedical Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China.
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10
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Wang Q, Yang Q, Wu W. Ensuring seafood safe to spoon: a brief review of biosensors for marine biotoxin monitoring. Crit Rev Food Sci Nutr 2020; 62:2495-2507. [PMID: 33287557 DOI: 10.1080/10408398.2020.1854170] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
With harmful algal blooms, marine food poisoning caused by marine biotoxins frequently occurs and is life-threatening if severe. However, the conventional detection methods of marine toxins have a few limitations: low sensitivity and high-cost. Therefore, it is necessary to establish a fast and sensitive on-site detection method for real seafood sample. Biosensors based on aptamers, antibodies, and cells have been applied in marine toxins monitoring. This review presents the classification and toxic effects of marine toxins, and recent biosensor for marine toxin detection. In addition, we have compared the superiority and limitation of these biosensors. Finally, challenges and opportunities of biosensors in food safety detection were discussed. Considering the excellent results achieved by the aptasensor in the field of detection, it seems ready to be put into practical applications.
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Affiliation(s)
- Qi Wang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
| | - Qingli Yang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
| | - Wei Wu
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
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11
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Dong Y, Yao C, Zhu Y, Yang L, Luo D, Yang D. DNA Functional Materials Assembled from Branched DNA: Design, Synthesis, and Applications. Chem Rev 2020; 120:9420-9481. [DOI: 10.1021/acs.chemrev.0c00294] [Citation(s) in RCA: 168] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Yuhang Dong
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Chi Yao
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Yi Zhu
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Lu Yang
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Dan Luo
- Department of Biological & Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Dayong Yang
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
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12
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Multi-cycle signal-amplified colorimetric detection of tobramycin based on dual-strand displacement and three-way DNA junction. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104823] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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13
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Lee T, Park SY, Jang H, Kim GH, Lee Y, Park C, Mohammadniaei M, Lee MH, Min J. Fabrication of electrochemical biosensor consisted of multi-functional DNA structure/porous au nanoparticle for avian influenza virus (H5N1) in chicken serum. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 99:511-519. [DOI: 10.1016/j.msec.2019.02.001] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/31/2019] [Accepted: 02/01/2019] [Indexed: 12/20/2022]
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14
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Yang D, Tang Y, Guo Z, Chen X, Miao P. Proximity aptasensor for protein detection based on an enzyme-free amplification strategy. MOLECULAR BIOSYSTEMS 2018; 13:1936-1939. [PMID: 28796267 DOI: 10.1039/c7mb00458c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A novel electrochemical aptasensor for the detection of trace protein is proposed based on proximity binding-induced strand displacement and hybridization chain reaction. This method is proven to be highly selective and has potential practical utility, and offers new opportunities for the convenient detection of proteins with an enzyme-free amplification process.
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Affiliation(s)
- Dawei Yang
- CAS Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, P. R. China.
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15
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Li L, Niu C, Li T, Wan Y, Zhou Y, Wang H, Yuan R, Liao P. Ultrasensitive electrochemiluminescence biosensor for detection of laminin based on DNA dendrimer-carried luminophore and DNA nanomachine-mediated target recycling amplification. Biosens Bioelectron 2018; 101:206-212. [DOI: 10.1016/j.bios.2017.10.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 09/24/2017] [Accepted: 10/02/2017] [Indexed: 12/16/2022]
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16
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Target-induced proximity ligation triggers recombinase polymerase amplification and transcription-mediated amplification to detect tumor-derived exosomes in nasopharyngeal carcinoma with high sensitivity. Biosens Bioelectron 2017; 102:204-210. [PMID: 29145073 DOI: 10.1016/j.bios.2017.11.033] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Revised: 10/29/2017] [Accepted: 11/07/2017] [Indexed: 01/09/2023]
Abstract
Tumor-derived exosomes (TEXs) are extracellular vesicles that are continuously released into the blood by tumor cells and carry specific surface markers of the original tumor cells. Substantial evidence has implicated TEXs as attractive diagnostic markers for cancer. However, the detection of TEXs in blood at an early tumor stage is challenging due to their very low concentration. Here, we established a method called PLA-RPA-TMA assay that allows TEXs to be detected with high sensitivity and specificity. Based on two proximity ligation assay (PLA) probes that recognize a biomarker on a TEX, we generated a unique surrogate DNA signal for the specific biomarker, which was synchronously amplified twice by recombinase polymerase amplification (RPA) coupled with transcription-mediated amplification (TMA), and then the products of the RPA-TMA reaction were quantitatively detected using a gold nanoparticle-based colorimetric assay. We established proof-of-concept evidence for this approach using TEXs from nasopharyngeal carcinoma (NPC) cells, with a detection limit of 102 particles/mL, and reported the measurement of plasma Epstein-Barr virus latent membrane protein 1 (LPM1)-positive (LMP1+, accuracy: 0.956) and epidermal growth factor receptor (EGFR)-positive (EGFR+, accuracy: 0.906) TEXs as potent early diagnostic biomarkers for NPC.
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17
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Zhang M, Li R, Ling L. Homogenous assay for protein detection based on proximity DNA hybridization and isothermal circular strand displacement amplification reaction. Anal Bioanal Chem 2017; 409:4079-4085. [DOI: 10.1007/s00216-017-0356-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 03/14/2017] [Accepted: 03/31/2017] [Indexed: 01/13/2023]
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18
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Affiliation(s)
- Wei Wen
- School of Mechanical and Material Engineering, Washington State University , Pullman, Washington 99164, United States
| | - Xu Yan
- School of Mechanical and Material Engineering, Washington State University , Pullman, Washington 99164, United States
| | - Chengzhou Zhu
- School of Mechanical and Material Engineering, Washington State University , Pullman, Washington 99164, United States
| | - Dan Du
- School of Mechanical and Material Engineering, Washington State University , Pullman, Washington 99164, United States.,Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University , Wuhan, Hubei 430079, P.R. China
| | - Yuehe Lin
- School of Mechanical and Material Engineering, Washington State University , Pullman, Washington 99164, United States
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19
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Bi S, Yue S, Wu Q, Ye J. Initiator-catalyzed self-assembly of duplex-looped DNA hairpin motif based on strand displacement reaction for logic operations and amplified biosensing. Biosens Bioelectron 2016; 83:281-6. [DOI: 10.1016/j.bios.2016.04.059] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 04/16/2016] [Accepted: 04/19/2016] [Indexed: 12/19/2022]
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20
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Yang ZH, Zhuo Y, Yuan R, Chai YQ. Highly Effective Protein Converting Strategy for Ultrasensitive Electrochemical Assay of Cystatin C. Anal Chem 2016; 88:5189-96. [DOI: 10.1021/acs.analchem.6b00210] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Zhe-Han Yang
- Key Laboratory of Luminescence
and Real-Time Analytic Chemistry (Southwest University), Ministry
of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ying Zhuo
- Key Laboratory of Luminescence
and Real-Time Analytic Chemistry (Southwest University), Ministry
of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ruo Yuan
- Key Laboratory of Luminescence
and Real-Time Analytic Chemistry (Southwest University), Ministry
of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ya-Qin Chai
- Key Laboratory of Luminescence
and Real-Time Analytic Chemistry (Southwest University), Ministry
of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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21
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Liu J, Xin X, Zhou H, Zhang S. Human serum biomarker detection based on a cascade signal amplification strategy by a DNA molecule machine. Chem Commun (Camb) 2016; 51:10843-6. [PMID: 26050749 DOI: 10.1039/c5cc03823e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A convenient method is presented that employs a DNA machine for protein biomarker detection. The detection limit is 400 times lower compared to the method without a DNA machine. This study provides a promising method that could realize most protein biomarker detections without the corresponding aptamers, using a DNA machine for signal amplification.
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Affiliation(s)
- Jing Liu
- School of Chemistry and Chemical Engineering of Linyi University, Linyi 276005, P. R. China.
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22
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Homogeneous electrochemical immunoassay of aflatoxin B1 in foodstuff using proximity-hybridization-induced omega-like DNA junctions and exonuclease III-triggered isothermal cycling signal amplification. Anal Bioanal Chem 2016; 408:8593-8601. [DOI: 10.1007/s00216-016-9343-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 01/08/2016] [Accepted: 01/15/2016] [Indexed: 01/11/2023]
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23
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Yang X, Tang Y, Alt RR, Xie X, Li F. Emerging techniques for ultrasensitive protein analysis. Analyst 2016; 141:3473-81. [PMID: 26898911 DOI: 10.1039/c6an00059b] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Many important biomarkers for devastating diseases and biochemical processes are proteins present at ultralow levels. Traditional techniques, such as enzyme-linked immunosorbent assays (ELISA), mass spectrometry, and protein microarrays, are often not sensitive enough to detect proteins with concentrations below the picomolar level, thus requiring the development of analytical techniques with ultrahigh sensitivities. In this review, we highlight the recent advances in developing novel techniques, sensors, and assays for ultrasensitive protein analysis. Particular attention will be focused on three classes of signal generation and/or amplification mechanisms, including the uses of nanomaterials, nucleic acids, and digital platforms.
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Affiliation(s)
- Xiaolong Yang
- Department of Chemistry and Centre for Biotechnology, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, ON L2S 3A1, Canada.
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24
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Sun AL, Zhang YF, Sun GP, Wang XN, Tang D. Homogeneous electrochemical detection of ochratoxin A in foodstuff using aptamer-graphene oxide nanosheets and DNase I-based target recycling reaction. Biosens Bioelectron 2015; 89:659-665. [PMID: 26707001 DOI: 10.1016/j.bios.2015.12.032] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Revised: 12/06/2015] [Accepted: 12/14/2015] [Indexed: 12/15/2022]
Abstract
A simple and feasible homogeneous electrochemical sensing protocol was developed for the detection of ochratoxin A (OTA) in foodstuff on the immobilization-free aptamer-graphene oxide nanosheets coupling with DNase I-based cycling signal amplification. Thionine-labeled OTA aptamers were attached to the surface of nanosheets because of the strong noncovalent binding of graphene oxide nanosheets with nucleobases and aromatic compounds. The electronic signal was acquired via negatively charged screen-printed carbon electrode (SPCE) toward free thionine molecules. Initially, the formed thionine-aptamer/graphene nanocomposites were suspended in the detection solution and far away from the electrode, thereby resulting in a weak electronic signal. Upon addition of target OTA, the analyte reacted with the aptamer and caused the dissociation of thionine-aptamer from the graphene oxide nanosheets. The newly formed thionine-aptamer/OTA could be readily cleaved by DNase I and released target OTA, which could retrigger thionine-aptamer/graphene nanocomposites with target recycling to generate numerous free thionine molecules. Free thionine molecules were captured by negatively charged SPCE, each of which could produce an electrochemical signal within the applied potentials. Under optimal conditions, graphene-based aptasensing platform could exhibit good electrochemical responses for the detection of OTA at a concentration as low as 5.6pg/mL. The reproducibility, precision and selectivity of the system were acceptable. Importantly, the method accuracy was comparable with commercialized OTA ELISA kit when using for quantitative monitoring of contaminated wheat samples.
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Affiliation(s)
- Ai-Li Sun
- Department of Chemistry and Chemical Engineering, Institute of Biotechnology, Xinxiang University, Xinxiang 453000, PR China.
| | - Yan-Fang Zhang
- Department of Chemistry and Chemical Engineering, Institute of Biotechnology, Xinxiang University, Xinxiang 453000, PR China; Key Laboratory of Analysis and Detection for Food Safety (MOE & Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350108, PR China
| | - Guo-Peng Sun
- Department of Chemistry and Chemical Engineering, Institute of Biotechnology, Xinxiang University, Xinxiang 453000, PR China; Key Laboratory of Analysis and Detection for Food Safety (MOE & Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350108, PR China
| | - Xuan-Nian Wang
- Department of Chemistry and Chemical Engineering, Institute of Biotechnology, Xinxiang University, Xinxiang 453000, PR China
| | - Dianping Tang
- Key Laboratory of Analysis and Detection for Food Safety (MOE & Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350108, PR China
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25
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Xu M, Gao Z, Wei Q, Chen G, Tang D. Hemin/G-quadruplex-based DNAzyme concatamers for in situ amplified impedimetric sensing of copper(II) ion coupling with DNAzyme-catalyzed precipitation strategy. Biosens Bioelectron 2015; 74:1-7. [DOI: 10.1016/j.bios.2015.05.056] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 05/11/2015] [Accepted: 05/26/2015] [Indexed: 12/29/2022]
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26
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Zhou Q, Lin Y, Lin Y, Wei Q, Chen G, Tang D. In situ amplified electrochemical aptasensing for sensitive detection of adenosine triphosphate by coupling target-induced hybridization chain reaction with the assembly of silver nanotags. Talanta 2015; 146:23-8. [PMID: 26695229 DOI: 10.1016/j.talanta.2015.08.035] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 08/13/2015] [Accepted: 08/16/2015] [Indexed: 10/23/2022]
Abstract
Biomolecular immobilization and construction of the sensing platform are usually crucial for the successful development of a high-efficiency detection system. Herein we report on a novel and label-free signal-amplified aptasensing for sensitive electrochemical detection of small molecules (adenosine triphosphate, ATP, used in this case) by coupling with target-induced hybridization chain reaction (HCR) and the assembly of electroactive silver nanotags. The system mainly consisted of two alternating hairpin probes, a partial-pairing trigger-aptamer duplex DNA and a capture probe immobilized on the electrode. Upon target ATP introduction, the analyte attacked the aptamer and released the trigger DNA, which was captured by capture DNA immobilized on the electrode to form a newly partial-pairing double-stranded DNA. Thereafter, the exposed domain at trigger DNA could be utilized as the initator strand to open the hairpin probes in sequence, and propagated a chain reaction of hybridization events between two alternating hairpins to form a long nicked double-helix. The electrochemical signal derived from the assembled silver nanotags on the nicked double-helix. Under optimal conditions, the electrochemical aptasensor could exhibit a high sensitivity and a low detection limit, and allowed the detection of ATP at a concentration as low as 0.03 pM. Our design showed a high selectivity for target ATP against its analogs because of the high-specificity ATP-aptamer reaction, and its applicable for monitoring ATP in the spiking serum samples. Improtantly, the distinct advantages of the developed aptasensor make it hold a great potential for the development of simple and robust sensing strategies for the detection of other small molecules by controlling the apatmer sequence.
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Affiliation(s)
- Qian Zhou
- Key Laboratory of Analysis and Detection for Food Safety (Ministry of Education & Fujian Province), Institute of Nanomedicine and Nanobiosensing, Department of Chemistry, Fuzhou University, Fuzhou 350108, PR China
| | - Youxiu Lin
- Key Laboratory of Analysis and Detection for Food Safety (Ministry of Education & Fujian Province), Institute of Nanomedicine and Nanobiosensing, Department of Chemistry, Fuzhou University, Fuzhou 350108, PR China
| | - Yuping Lin
- Key Laboratory of Analysis and Detection for Food Safety (Ministry of Education & Fujian Province), Institute of Nanomedicine and Nanobiosensing, Department of Chemistry, Fuzhou University, Fuzhou 350108, PR China
| | - Qiaohua Wei
- Key Laboratory of Analysis and Detection for Food Safety (Ministry of Education & Fujian Province), Institute of Nanomedicine and Nanobiosensing, Department of Chemistry, Fuzhou University, Fuzhou 350108, PR China.
| | - Guonan Chen
- Key Laboratory of Analysis and Detection for Food Safety (Ministry of Education & Fujian Province), Institute of Nanomedicine and Nanobiosensing, Department of Chemistry, Fuzhou University, Fuzhou 350108, PR China
| | - Dianping Tang
- Key Laboratory of Analysis and Detection for Food Safety (Ministry of Education & Fujian Province), Institute of Nanomedicine and Nanobiosensing, Department of Chemistry, Fuzhou University, Fuzhou 350108, PR China
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27
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Liu S, Wei W, Liu T, Wang L. Catalytic Hairpin Assembly-Programmed DNA Three-Way Junction for Enzyme-Free and Amplified Electrochemical Detection of Target DNA. Chem Asian J 2015; 10:1903-8. [DOI: 10.1002/asia.201500675] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Indexed: 01/02/2023]
Affiliation(s)
- Shufeng Liu
- Key Laboratory of Sensor Analysis of Tumor Marker; Ministry of Education; College of Chemistry and Molecular Engineering; Qingdao University of Science and Technology; No. 53 Rd. Zhengzhou, Qingdao Shandong 266042 China
| | - Wenji Wei
- Key Laboratory of Sensor Analysis of Tumor Marker; Ministry of Education; College of Chemistry and Molecular Engineering; Qingdao University of Science and Technology; No. 53 Rd. Zhengzhou, Qingdao Shandong 266042 China
| | - Tao Liu
- Key Laboratory of Sensor Analysis of Tumor Marker; Ministry of Education; College of Chemistry and Molecular Engineering; Qingdao University of Science and Technology; No. 53 Rd. Zhengzhou, Qingdao Shandong 266042 China
| | - Li Wang
- Key Laboratory of Sensor Analysis of Tumor Marker; Ministry of Education; College of Chemistry and Molecular Engineering; Qingdao University of Science and Technology; No. 53 Rd. Zhengzhou, Qingdao Shandong 266042 China
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28
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Exonuclease III-based target recycling for ultrasensitive homogeneous monitoring of HIV DNA using Ag(+)-coordinated hairpin probe. Biosens Bioelectron 2015; 74:66-70. [PMID: 26120811 DOI: 10.1016/j.bios.2015.06.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 06/10/2015] [Accepted: 06/11/2015] [Indexed: 01/26/2023]
Abstract
A new homogeneous electrochemical sensing strategy based on exonuclease III-assisted target recycling amplification was utilized for simple, rapid and highly sensitive detection of human immunodeficiency virus (HIV) DNA on an immobilization-free Ag(I)-assisted hairpin DNA through the cytosine-Ag(+)-cytosine coordination chemistry. The assay involved target-induced strand-displacement reaction accompanying dissociation of the chelated Ag(+) in the hairpins and exonuclease III-triggered target recycling. Initially, the added target DNA hybridized with hairpin DNA to disrupt the Ag(I)-coordinated hairpin probe and releases the coordinated Ag(+) ion. Then, the newly formed DNA double-stranded DNA could be cleaved by exonuclease III, and released target HIV DNA, which retriggered the strand-displacement reaction with the hairpin for target recycling, thereby resulting in formation of numerous free Ag(+) ions in the detection cell. The released Ag(+) ions can be readily captured by the negatively charged electrode, and subsequent anodic-stripping voltammetric detection of the captured Ag(+) ions are conducted to form the anodic current for the production of the electronic signal within the applied potential. Under optimal conditions, the exonuclease III-based sensing system exhibited good electrochemical responses for the detection of HIV DNA at a concentration as low as 23 fM.
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29
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Liu S, Gong H, Sun X, Liu T, Wang L. A programmable Y-shaped junction scaffold-mediated modular and cascade amplification strategy for the one-step, isothermal and ultrasensitive detection of target DNA. Chem Commun (Camb) 2015; 51:17756-9. [DOI: 10.1039/c5cc07659e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A programmable Y-shaped junction probe-mediated modular and cascade amplification strategy was proposed for the one-pot, isothermal and ultrasensitive detection of target DNA.
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Affiliation(s)
- Shufeng Liu
- Key Laboratory of Sensor Analysis of Tumor Marker
- Ministry of Education
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
| | - Hongwei Gong
- Key Laboratory of Sensor Analysis of Tumor Marker
- Ministry of Education
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
| | - Xinya Sun
- Key Laboratory of Sensor Analysis of Tumor Marker
- Ministry of Education
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
| | - Tao Liu
- Key Laboratory of Sensor Analysis of Tumor Marker
- Ministry of Education
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
| | - Li Wang
- Key Laboratory of Sensor Analysis of Tumor Marker
- Ministry of Education
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
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