51
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A universal and label-free impedimetric biosensing platform for discrimination of single nucleotide substitutions in long nucleic acid strands. Biosens Bioelectron 2018. [PMID: 29524915 DOI: 10.1016/j.bios.2018.02.059] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We report a label-free universal biosensing platform for highly selective detection of long nucleic acid strands. The sensor consists of an electrode-immobilized universal stem-loop (USL) probe and two adaptor strands that form a 4J structure in the presence of a specific DNA/RNA analyte. The sensor was characterized by electrochemical impedance spectroscopy (EIS) using K3[Fe(CN)6]/K4[Fe(CN)6] redox couple in solution. An increase in charge transfer resistance (RCT) was observed upon 4J structure formation, the value of which depends on the analyte length. Cyclic voltammetry (CV) was used to further characterize the sensor and monitor the electrochemical reaction in conjunction with thickness measurements of the mixed DNA monolayer obtained using spectroscopic ellipsometry. In addition, the electron transfer was calculated at the electrode/electrolyte interface using a rotating disk electrode. Limits of detection in the femtomolar range were achieved for nucleic acid targets of different lengths (22 nt, 60 nt, 200 nt). The sensor produced only a background signal in the presence of single base mismatched analytes, even in hundred times excess in concentration. This label-free and highly selective biosensing platform is versatile and can be used for universal detection of nucleic acids of varied lengths which could revolutionize point of care diagnostics for applications such as bacterial or cancer screening.
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52
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Wan Y, Xu L, Zhuo N, Lu X. A novel DNA sensor based on C 60NPs-PAMAM-PtPNPs to detect VKORC1 gene for guiding rational clinical therapy with warfarin. Anal Chim Acta 2018; 1009:39-47. [PMID: 29422130 DOI: 10.1016/j.aca.2018.01.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Revised: 12/24/2017] [Accepted: 01/10/2018] [Indexed: 12/31/2022]
Abstract
Reports have indicated that warfarin is the most widely prescribed anticoagulant. However, traditionally prescribed doses for each patient may be too low or too high. The therapeutic effect is often hindered by a lack of evidence-based medical information. Herein, our aim is to provide this information. To accomplish this challenge, we report the development of a novel assay based on biotinylated tetrahedral DNA as a capture probe and fullerene (C60)-based nanomaterial as a redox probe using an ultrasensitivity assay with the Vitamin K epoxide reductase complex, subunit 1 (VKORC1). Platinum porous nanoparticles (PtPNPs) were modified on amino-terminated polyamidoamine (PAMAM)-functionalized C60 nanoparticles (C60NPs). The resultant C60NPs-PAMAM-PtPNPs were used as a redox probe. In this design, C60 exhibited excellent redox activity that was triggered by tetraoctylammonium bromide (TOAB). To improve the immobilization of the tetrahedral DNA capture probe, avidin was introduced during the fabrication of the biosensor because it can provide more active sites for the immobilization capture probe. The free-standing probe on top of the tetrahedral DNA served as a receptor to hybridize with target DNA directly. Different pulse voltammetry (DPV) was applied to record the electrochemical signals, which increased linearly with the target DNA. Under optimal conditions, the prepared biosensor showed a wide linear relationship, from 1 pM to 10 nM, with detection limits of 0.33 pM. This strategy demonstrates a new avenue for the determination of tumour-related mutated nucleotides in biosamples.
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Affiliation(s)
- Yongxian Wan
- Department of Orthopedics, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Lili Xu
- Department of Rehabilitation Medicine, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Naiqiang Zhuo
- Department of Orthopedics, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Xiaobo Lu
- Department of Orthopedics, Affiliated Hospital of Southwest Medical University, Luzhou, China
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53
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Buckhout-White S, Person C, Medintz IL, Goldman ER. Restriction Enzymes as a Target for DNA-Based Sensing and Structural Rearrangement. ACS OMEGA 2018; 3:495-502. [PMID: 31457907 PMCID: PMC6641459 DOI: 10.1021/acsomega.7b01333] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 11/10/2017] [Indexed: 05/04/2023]
Abstract
DNA nanostructures have been shown viable for the creation of complex logic-enabled sensing motifs. To date, most of these types of devices have been limited to the interaction with strictly DNA-type inputs. Restriction endonuclease represents a class of enzyme with endogenous specificity to DNA, and we hypothesize that these can be integrated with a DNA structure for use as inputs to trigger structural transformation and structural rearrangement. In this work, we reconfigured a three-arm DNA switch, which utilizes a cyclic Förster resonance energy transfer interaction between three dyes to produce complex output for the detection of three separate input regions to respond to restriction endonucleases, and investigated the efficacy of the enzyme targets. We demonstrate the ability to use three enzymes in one switch with no nonspecific interaction between cleavage sites. Further, we show that the enzymatic digestion can be harnessed to expose an active toehold into the DNA structure, allowing for single-pot addition of a small oligo in solution.
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Affiliation(s)
- Susan Buckhout-White
- Center for Bio/Molecular
Science and Engineering, Code 6900, U.S.
Naval Research Laboratory, Washington, DC 20375, United States
| | - Chanel Person
- Center for Bio/Molecular
Science and Engineering, Code 6900, U.S.
Naval Research Laboratory, Washington, DC 20375, United States
| | - Igor L. Medintz
- Center for Bio/Molecular
Science and Engineering, Code 6900, U.S.
Naval Research Laboratory, Washington, DC 20375, United States
| | - Ellen R. Goldman
- Center for Bio/Molecular
Science and Engineering, Code 6900, U.S.
Naval Research Laboratory, Washington, DC 20375, United States
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54
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Wang B, Ren D, You Z, Yalikun Y, Tanaka Y. Ultrasensitive detection of nucleic acids based on dually enhanced fluorescence polarization. Analyst 2018; 143:3560-3569. [DOI: 10.1039/c8an00952j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Increase of the molecular volume and quenching effect induced by AuNP conjugation can both enhance the fluorescence polarization of Alexa488.
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Affiliation(s)
- Bin Wang
- State Key Laboratory of Precision Measurement Technology and Instruments
- Department of Precision Instrument
- Tsinghua University
- Beijing
- China
| | - Dahai Ren
- State Key Laboratory of Precision Measurement Technology and Instruments
- Department of Precision Instrument
- Tsinghua University
- Beijing
- China
| | - Zheng You
- State Key Laboratory of Precision Measurement Technology and Instruments
- Department of Precision Instrument
- Tsinghua University
- Beijing
- China
| | - Yaxiaer Yalikun
- Laboratory for Integrated Biodevice
- Quantitative Biology Center
- Osaka 565-0871
- Japan
| | - Yo Tanaka
- Laboratory for Integrated Biodevice
- Quantitative Biology Center
- Osaka 565-0871
- Japan
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55
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Aghili Z, Nasirizadeh N, Divsalar A, Shoeibi S, Yaghmaei P. A highly sensitive miR-195 nanobiosensor for early detection of Parkinson’s disease. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:32-40. [DOI: 10.1080/21691401.2017.1411930] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Zahra Aghili
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Navid Nasirizadeh
- Department of Textile and Polymer Engineering, Yazd Branch, Islamic Azad University, Yazd, Iran
| | - Adeleh Divsalar
- Department of Cell and Molecular Sciences, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | - Shahram Shoeibi
- Food and Drug Reference Control Laboratories Center, Food and Drug Organization, Ministry of Health and Medical Education (MOH), Tehran, Iran
| | - Parichehreh Yaghmaei
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
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56
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Yammouri G, Mandli J, Mohammadi H, Amine A. Development of an electrochemical label-free biosensor for microRNA-125a detection using pencil graphite electrode modified with different carbon nanomaterials. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.10.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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57
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Wang L. Screening and Biosensor-Based Approaches for Lung Cancer Detection. SENSORS (BASEL, SWITZERLAND) 2017; 17:E2420. [PMID: 29065541 PMCID: PMC5677261 DOI: 10.3390/s17102420] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 10/17/2017] [Accepted: 10/18/2017] [Indexed: 02/07/2023]
Abstract
Early diagnosis of lung cancer helps to reduce the cancer death rate significantly. Over the years, investigators worldwide have extensively investigated many screening modalities for lung cancer detection, including computerized tomography, chest X-ray, positron emission tomography, sputum cytology, magnetic resonance imaging and biopsy. However, these techniques are not suitable for patients with other pathologies. Developing a rapid and sensitive technique for early diagnosis of lung cancer is urgently needed. Biosensor-based techniques have been recently recommended as a rapid and cost-effective tool for early diagnosis of lung tumor markers. This paper reviews the recent development in screening and biosensor-based techniques for early lung cancer detection.
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Affiliation(s)
- Lulu Wang
- School of Instrument Science and Opto-electronics Engineering, Hefei University of Technology, Hefei 230009, China.
- Institute of Biomedical Technologies, Auckland University of Technology, Auckland 1142, New Zealand.
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58
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Highly sensitive surface plasmon resonance biosensor for the detection of HIV-related DNA based on dynamic and structural DNA nanodevices. Biosens Bioelectron 2017; 100:228-234. [PMID: 28918231 DOI: 10.1016/j.bios.2017.08.042] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 08/09/2017] [Accepted: 08/17/2017] [Indexed: 01/23/2023]
Abstract
Early detection, diagnosis and treatment of human immune deficiency virus (HIV) infection is the key to reduce acquired immunodeficiency syndrome (AIDS) mortality. In our research, an innovative surface plasmon resonance (SPR) biosensing strategy has been developed for highly sensitive detection of HIV-related DNA based on entropy-driven strand displacement reactions (ESDRs) and double-layer DNA tetrahedrons (DDTs). ESDRs as enzyme-free and label-free signal amplification circuit can be specifically triggered by target DNA, leading to the cyclic utilization of target DNA and the formation of plentiful double-stranded DNA (dsDNA) products. Subsequently, the dsDNA products bind to the immobilized hairpin capture probes and further combine with DDTs nanostructures. Due to the high efficiency of ESDRs and large molecular weight of DDTs, the SPR response signal was enhanced dramatically. The proposed SPR biosensor could detect target DNA sensitively and specifically in a linear range from 1pM to 150nM with a detection limit of 48fM. In addition, the whole detecting process can be accomplished in 60min with high accuracy and duplicability. In particular, the developed SPR biosensor was successfully used to analyze target DNA in complex biological sample, indicating that the developed strategy is promising for rapid and early clinical diagnosis of HIV infection.
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59
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Hu Q, Wang Q, Sun G, Kong J, Zhang X. Electrochemically Mediated Surface-Initiated de Novo Growth of Polymers for Amplified Electrochemical Detection of DNA. Anal Chem 2017; 89:9253-9259. [DOI: 10.1021/acs.analchem.7b02039] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Qiong Hu
- School of Environmental
and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, P. R. China
| | - Qiangwei Wang
- School of Environmental
and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, P. R. China
| | - Gengzhi Sun
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing, Jiangsu 211816, P. R. China
| | - Jinming Kong
- School of Environmental
and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, P. R. China
| | - Xueji Zhang
- Chemistry Department, College of Arts and Sciences, University of South Florida, East Fowler Avenue, Tampa, Florida 33620-4202, United States
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60
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Chen YX, Huang KJ, Niu KX. Recent advances in signal amplification strategy based on oligonucleotide and nanomaterials for microRNA detection-a review. Biosens Bioelectron 2017; 99:612-624. [PMID: 28837925 DOI: 10.1016/j.bios.2017.08.036] [Citation(s) in RCA: 162] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 08/13/2017] [Accepted: 08/14/2017] [Indexed: 01/01/2023]
Abstract
MicroRNAs (MiRNAs) play multiple crucial regulating roles in cell which can regulate one third of protein-coding genes. MiRNAs participate in the developmental and physiological processes of human body, while their aberrant adjustment will be more likely to trigger diseases such as cancers, kidney disease, central nervous system diseases, cardiovascular diseases, diabetes, viral infections and so on. What's worse, for the detection of miRNAs, their small size, high sequence similarity, low abundance and difficult extraction from cells impose great challenges in the analysis. Hence, it's necessary to fabricate accurate and sensitive biosensing platform for miRNAs detection. Up to now, researchers have developed many signal-amplification strategies for miRNAs detection, including hybridization chain reaction, nuclease amplification, rolling circle amplification, catalyzed hairpin assembly amplification and nanomaterials based amplification. These methods are typical, feasible and frequently used. In this review, we retrospect recent advances in signal amplification strategies for detecting miRNAs and point out the pros and cons of them. Furthermore, further prospects and promising developments of the signal-amplification strategies for detecting miRNAs are proposed.
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Affiliation(s)
- Ying-Xu Chen
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China; Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the South of Henan, Xinyang Normal University, Xinyang 464000, China
| | - Ke-Jing Huang
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China; Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the South of Henan, Xinyang Normal University, Xinyang 464000, China.
| | - Ke-Xin Niu
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China; Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the South of Henan, Xinyang Normal University, Xinyang 464000, China
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61
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Liu L, Chang Y, Xia N, Peng P, Zhang L, Jiang M, Zhang J, Liu L. Simple, sensitive and label–free electrochemical detection of microRNAs based on the in situ formation of silver nanoparticles aggregates for signal amplification. Biosens Bioelectron 2017; 94:235-242. [DOI: 10.1016/j.bios.2017.02.041] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 02/15/2017] [Accepted: 02/23/2017] [Indexed: 01/25/2023]
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62
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A novel method for sensitive microRNA detection: Electropolymerization based doping. Biosens Bioelectron 2017; 92:770-778. [DOI: 10.1016/j.bios.2016.09.050] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 08/08/2016] [Accepted: 09/14/2016] [Indexed: 12/14/2022]
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63
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Fozooni T, Ravan H, Sasan H. Signal Amplification Technologies for the Detection of Nucleic Acids: from Cell-Free Analysis to Live-Cell Imaging. Appl Biochem Biotechnol 2017; 183:1224-1253. [DOI: 10.1007/s12010-017-2494-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Accepted: 04/24/2017] [Indexed: 12/15/2022]
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64
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Amperometric biosensor for microRNA based on the use of tetrahedral DNA nanostructure probes and guanine nanowire amplification. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2246-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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65
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Fiammengo R. Can nanotechnology improve cancer diagnosis through miRNA detection? Biomark Med 2017; 11:69-86. [DOI: 10.2217/bmm-2016-0195] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
miRNAs are key regulators of gene expression, and alterations in their expression levels correlate with the onset and progression of cancer. Although miRNAs have been proposed as biomarkers for cancer diagnosis, their application in routine clinical praxis is yet to come. Current quantification strategies have limitation, and there is a great interest in developing innovative ones. Since a few years, nanotechnology-based approaches for miRNA quantification are emerging at fast pace but there is urgent need to go beyond the proof-of-concept stage. Nanotechnology will have a strong impact on cancer diagnosis through miRNA detection only if it is demonstrated that the newly developed approaches are indeed working on ‘real-world’ samples under standardized conditions.
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Affiliation(s)
- Roberto Fiammengo
- Center for Biomolecular Nanotechnologies@UniLe – Istituto Italiano di Tecnologia (IIT), Via Barsanti, 73010 Arnesano, Lecce, Italy
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66
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Daneshpour M, Omidfar K, Ghanbarian H. A novel electrochemical nanobiosensor for the ultrasensitive and specific detection of femtomolar-level gastric cancer biomarker miRNA-106a. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2016; 7:2023-2036. [PMID: 28144550 PMCID: PMC5238648 DOI: 10.3762/bjnano.7.193] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 11/23/2016] [Indexed: 06/06/2023]
Abstract
Gastric cancer (GC) is the second leading cause of cancer-related deaths all over the world. miR-106a is a circulatory oncogenic microRNA (miRNA), which overexpresses in various malignancies, especially in GC. In this study, an ultrasensitive electrochemical nanobiosensor was developed for the detection of miR-106a using a double-specific probe methodology and a gold-magnetic nanocomposite as tracing tag. The successful modification of the electrode and hybridization with the target miRNA were confirmed by electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) methods. Differential pulse voltammetry (DPV) was used for quantitative evaluation of miR-106a via recording the reduction peak current of gold nanoparticles. The electrochemical signal had a linear relationship with the concentration of the target miRNA ranging from 1 × 10-3 pM to 1 × 103 pM, and the detection limit was 3 × 10-4 pM. The proposed miRNA-nanobiosensor showed remarkable selectivity, high specificity, agreeable storage stability, and great performance in real sample investigation with no pretreatment or amplification. Consequently, our biosensing strategy offers such a promising application to be used for clinical early detection of GC and additionally the screen of any miRNA sequence.
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Affiliation(s)
- Maryam Daneshpour
- Biotechnology Department, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kobra Omidfar
- Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Hossein Ghanbarian
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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67
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Shuai HL, Huang KJ, Chen YX, Fang LX, Jia MP. Au nanoparticles/hollow molybdenum disulfide microcubes based biosensor for microRNA-21 detection coupled with duplex-specific nuclease and enzyme signal amplification. Biosens Bioelectron 2016; 89:989-997. [PMID: 27825521 DOI: 10.1016/j.bios.2016.10.051] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Revised: 09/30/2016] [Accepted: 10/18/2016] [Indexed: 11/16/2022]
Abstract
An ultrasensitive electrochemical biosensor for detecting microRNAs is fabricated based on hollow molybdenum disulfide (MoS2) microcubes. Duplex-specific nuclease, enzyme and electrochemical-chemical-chemical redox cycling are used for signal amplification. Hollow MoS2 microcubes constructed by ultrathin nanosheets are synthesized by a facile template-assisted strategy and used as supporting substrate. For biosensor assembling, biotinylated ssDNA capture probes are first immobilized on Au nanoparticles (AuNPs)/MoS2 modified electrode in order to combine with streptavidin-conjugated alkaline phosphatase (SA-ALP). When capture probes hybridize with miRNAs, duplex-specific nuclease cleaves the formative duplexes. At the moment, the biotin group strips from the electrode surface and SA-ALP is incapacitated to attach onto electrode. Then, ascorbic acids induce the electrochemical-chemical-chemical redox cycling to produce electrochemical response in the presence of ferrocene methanol and tris (2-carboxyethyl) phosphine. Under optimum conditions, the proposed biosensor shows a good linear relationship between the current variation and logarithm of the microRNAs concentration ranging from 0.1fM to 0.1pM with a detection limit of 0.086fM (S/N=3). Furthermore, the biosensor is successfully applied to detect target miRNA-21 in human serum samples.
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Affiliation(s)
- Hong-Lei Shuai
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Ke-Jing Huang
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China; Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang 464000, China.
| | - Ying-Xu Chen
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Lin-Xia Fang
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Meng-Pei Jia
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
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68
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Cardoso AR, Moreira FTC, Fernandes R, Sales MGF. Novel and simple electrochemical biosensor monitoring attomolar levels of miRNA-155 in breast cancer. Biosens Bioelectron 2016; 80:621-630. [PMID: 26901459 PMCID: PMC6366556 DOI: 10.1016/j.bios.2016.02.035] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/08/2016] [Accepted: 02/13/2016] [Indexed: 12/21/2022]
Abstract
This work, describes for the first time, a simple biosensing design to yield an ultrasensitive electrochemical biosensor for a cancer biomarker detection, miRNA-155, with linear response down to the attomolar range. MiRNA-155 was selected for being overexpressed in breast cancer. The biosensor was assembled in two stages: (1) the immobilization of the anti-miRNA-155 that was thiol modified on an Au-screen printed electrode (Au-SPE), followed by (2) blocking the areas of non-specific binding with mercaptosuccinic acid. Atomic force microscopy (AFM) and electrochemical techniques including cyclic voltammetry (CV), impedance spectroscopy (EIS) and square wave voltammetry (SWV) confirmed the surface modification of these devices and their ability to hybridize successfully and stably with miRNA-155. The final biosensor provided a sensitive detection of miRNA-155 from 10 aM to 1.0 nM with a low detection limit (LOD) of 5.7 aM in real human serum samples. Good results were obtained in terms of selectivity towards breast cancer antigen CA-15.3 and bovine serum albumin (BSA). Raw fluid extracts from cell-lines of melanoma did not affect the biosensor response (no significant change of the blank), while raw extracts from breast cancer yielded a positive signal against miRNA-155. This simple and sensitive strategy is a promising alternative for simultaneous quantitative analysis of multiple miRNA in physiological fluids for biomedical research and point-of-care (POC) diagnosis.
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Affiliation(s)
- Ana R Cardoso
- BioMark-CINTESIS/ISEP, School of Engineering, Polytechnic Institute of Porto, Portugal; Molecular Mechanisms of Disease Unit, Centre of Research in Health and Environment (CISA), ESTSP-IPP, Portugal
| | - Felismina T C Moreira
- BioMark-CINTESIS/ISEP, School of Engineering, Polytechnic Institute of Porto, Portugal
| | - Rúben Fernandes
- Molecular Mechanisms of Disease Unit, Centre of Research in Health and Environment (CISA), ESTSP-IPP, Portugal; Metabolism, Nutrition and Endocrinology Unit, Integrative Cancer Programe, Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Portugal
| | - M Goreti F Sales
- BioMark-CINTESIS/ISEP, School of Engineering, Polytechnic Institute of Porto, Portugal.
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69
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Maffeo C, Yoo J, Aksimentiev A. De novo reconstruction of DNA origami structures through atomistic molecular dynamics simulation. Nucleic Acids Res 2016; 44:3013-9. [PMID: 26980283 PMCID: PMC4838381 DOI: 10.1093/nar/gkw155] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Accepted: 02/29/2016] [Indexed: 02/06/2023] Open
Abstract
The DNA origami method has brought nanometer-precision fabrication to molecular biology labs, offering myriads of potential applications in the fields of synthetic biology, medicine, molecular computation, etc. Advancing the method further requires controlling self-assembly down to the atomic scale. Here we demonstrate a computational method that allows the equilibrium structure of a large, complex DNA origami object to be determined to atomic resolution. Through direct comparison with the results of cryo-electron microscopy, we demonstrate de novo reconstruction of a 4.7 megadalton pointer structure by means of fully atomistic molecular dynamics simulations. Furthermore, we show that elastic network-guided simulations performed without solvent can yield similar accuracy at a fraction of the computational cost, making this method an attractive approach for prototyping and validation of self-assembled DNA nanostructures.
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Affiliation(s)
- Christopher Maffeo
- Department of Physics, University of Illinois at Urbana-Champaign, 1110 W Green Street, Urbana, IL 61801, USA Center for the Physics of Living Cells, University of Illinois at Urbana-Champaign, 1110 W Green Street, Urbana, IL 61801, USA
| | - Jejoong Yoo
- Department of Physics, University of Illinois at Urbana-Champaign, 1110 W Green Street, Urbana, IL 61801, USA Center for the Physics of Living Cells, University of Illinois at Urbana-Champaign, 1110 W Green Street, Urbana, IL 61801, USA
| | - Aleksei Aksimentiev
- Department of Physics, University of Illinois at Urbana-Champaign, 1110 W Green Street, Urbana, IL 61801, USA Center for the Physics of Living Cells, University of Illinois at Urbana-Champaign, 1110 W Green Street, Urbana, IL 61801, USA Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, 405 North Mathews Avenue, Urbana, IL 61801, USA
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70
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An electrochemical nanobiosensor for plasma miRNA-155, based on graphene oxide and gold nanorod, for early detection of breast cancer. Biosens Bioelectron 2016; 77:99-106. [DOI: 10.1016/j.bios.2015.09.020] [Citation(s) in RCA: 242] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 08/29/2015] [Accepted: 09/10/2015] [Indexed: 11/20/2022]
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Topkaya SN, Azimzadeh M, Ozsoz M. Electrochemical Biosensors for Cancer Biomarkers Detection: Recent Advances and Challenges. ELECTROANAL 2016. [DOI: 10.1002/elan.201501174] [Citation(s) in RCA: 115] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Seda Nur Topkaya
- Department of Analytical Chemistry; Faculty of Pharmacy; Ege University, Ege University Faculty of Pharmacy Department of Analytical Chemistry; Izmir Turkey 35100 Bornova/Izmir Turkey
| | - Mostafa Azimzadeh
- Department of Life Science Engineering; Faculty of New Sciences and Technologies; University of Tehran; Tehran Iran
| | - Mehmet Ozsoz
- Department of Biomedical Engineering Faculty of Engineering and Architecture; Gediz University; İzmir Turkey
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Wen Y, Li L, Wang L, Xu L, Liang W, Ren S, Liu G. Biomedical Applications of DNA-Nanomaterials Based on Metallic Nanoparticles and DNA Self-Assembled Nanostructures. CHINESE J CHEM 2016. [DOI: 10.1002/cjoc.201500849] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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