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Zambry NS, Awang MS, Beh KK, Hamzah HH, Bustami Y, Obande GA, Khalid MF, Ozsoz M, Manaf AA, Aziah I. A label-free electrochemical DNA biosensor used a printed circuit board gold electrode (PCBGE) to detect SARS-CoV-2 without amplification. LAB ON A CHIP 2023; 23:1622-1636. [PMID: 36786757 DOI: 10.1039/d2lc01159j] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The emergence of coronavirus disease 2019 (COVID-19) motivates continuous efforts to develop robust and accurate diagnostic tests to detect severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). Detection of viral nucleic acids provides the highest sensitivity and selectivity for diagnosing early and asymptomatic infection because the human immune system may not be active at this stage. Therefore, this work aims to develop a label-free electrochemical DNA biosensor for SARS-CoV-2 detection using a printed circuit board-based gold substrate (PCBGE). The developed sensor used the nucleocapsid phosphoprotein (N) gene as a biomarker. The DNA sensor-based PCBGE was fabricated by self-assembling a thiolated single-stranded DNA (ssDNA) probe onto an Au surface, which performed as the working electrode (WE). The Au surface was then treated with 6-mercapto-1-hexanol (MCH) before detecting the target N gene to produce a well-oriented arrangement of the immobilized ssDNA chains. The successful fabrication of the biosensor was characterized using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and atomic force microscopy (AFM). The DNA biosensor performances were evaluated using a synthetic SARS-CoV-2 genome and 20 clinical RNA samples from healthy and infected individuals through EIS. The developed DNA biosensor can detect as low as 1 copy per μL of the N gene within 5 minutes with a LOD of 0.50 μM. Interestingly, the proposed DNA sensor could distinguish the expression of SARS-CoV-2 RNA in a patient diagnosed with COVID-19 without any amplification technique. We believe that the proposed DNA sensor platform is a promising point-of-care (POC) device for COVID-19 viral infection since it offers a rapid detection time with a simple design and workflow detection system, as well as an affordable diagnostic assay.
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Affiliation(s)
- Nor Syafirah Zambry
- Institute for Research in Molecular Medicine (INFORMM), Health Campus, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia.
| | - Mohd Syafiq Awang
- Collaborative Microelectronic Design Excellence Center (CEDEC), Universiti Sains Malaysia, Sains@USM, Level 1, Block C, No. 10 Persiaran Bukit Jambul, 11900 Bayan Lepas, Pulau Pinang, Malaysia.
| | - Khi Khim Beh
- Collaborative Microelectronic Design Excellence Center (CEDEC), Universiti Sains Malaysia, Sains@USM, Level 1, Block C, No. 10 Persiaran Bukit Jambul, 11900 Bayan Lepas, Pulau Pinang, Malaysia.
| | - Hairul Hisham Hamzah
- School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Pulau Pinang, Malaysia.
| | - Yazmin Bustami
- School of Biological Sciences, Universiti Sains Malaysia, 11800 Minden, Pulau Pinang, Malaysia
| | - Godwin Attah Obande
- Department of Medical Microbiology and Parasitology, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia
- Department of Microbiology, Faculty of Science, Federal University of Lafia, Lafia, Nasarawa State, Nigeria
| | - Muhammad Fazli Khalid
- Institute for Research in Molecular Medicine (INFORMM), Health Campus, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia.
| | - Mehmet Ozsoz
- Institute for Research in Molecular Medicine (INFORMM), Health Campus, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia.
- Department of Biomedical Engineering, Faculty of Engineering, Near East University, 99138 Nicosia, Turkey
| | - Asrulnizam Abd Manaf
- Collaborative Microelectronic Design Excellence Center (CEDEC), Universiti Sains Malaysia, Sains@USM, Level 1, Block C, No. 10 Persiaran Bukit Jambul, 11900 Bayan Lepas, Pulau Pinang, Malaysia.
| | - Ismail Aziah
- Institute for Research in Molecular Medicine (INFORMM), Health Campus, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia.
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Wang L, Zeng X, Zhang L, Yu Y, Lin B, Wang Y, Guo M, Cao Y. Field-free electrochemical sensor: A novel inverted Y-type DNA conformation possessing specific self-transform capability for ultrasensitive determination of tetracycline. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Signal “on-off-off” strategy for improving the sensitivity for BRCA1 electrochemical detection by combining gold substrate amplification, DNA conformational transformation and DSN enzymatic hydrolysis dual reduction. Anal Chim Acta 2022; 1235:340461. [DOI: 10.1016/j.aca.2022.340461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/16/2022] [Accepted: 09/28/2022] [Indexed: 11/18/2022]
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Tiwari A, Chaskar J, Ali A, Arivarasan VK, Chaskar AC. Role of Sensor Technology in Detection of the Breast Cancer. BIONANOSCIENCE 2022. [DOI: 10.1007/s12668-021-00921-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Zhang YY, Guillon FX, Griveau S, Bedioui F, Lazerges M, Slim C. Evolution of nucleic acids biosensors detection limit III. Anal Bioanal Chem 2021; 414:943-968. [PMID: 34668044 DOI: 10.1007/s00216-021-03722-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 09/17/2021] [Accepted: 10/06/2021] [Indexed: 11/30/2022]
Abstract
This review is an update of two previous ones focusing on the limit of detection of electrochemical nucleic acid biosensors allowing direct detection of nucleic acid target (miRNA, mRNA, DNA) after hybridization event. A classification founded on the nature of the electrochemical transduction pathway is established. It provides an overall picture of the detection limit evolution of the various sensor architectures developed during the last three decades and a critical report of recent strategies.
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Affiliation(s)
- Yuan Yuan Zhang
- Institute of Chemistry for Life and Health Sciences (iCLeHS), Synthesis, Electrochemistry, Imaging and Analytical Systems for Diagnosis (SEISAD) Team, PSL Research University, CNRS, Chimie ParisTech, 75231, Paris, France
| | - François-Xavier Guillon
- Institute of Chemistry for Life and Health Sciences (iCLeHS), Synthesis, Electrochemistry, Imaging and Analytical Systems for Diagnosis (SEISAD) Team, PSL Research University, CNRS, Chimie ParisTech, 75231, Paris, France
| | - Sophie Griveau
- Institute of Chemistry for Life and Health Sciences (iCLeHS), Synthesis, Electrochemistry, Imaging and Analytical Systems for Diagnosis (SEISAD) Team, PSL Research University, CNRS, Chimie ParisTech, 75231, Paris, France
| | - Fethi Bedioui
- Institute of Chemistry for Life and Health Sciences (iCLeHS), Synthesis, Electrochemistry, Imaging and Analytical Systems for Diagnosis (SEISAD) Team, PSL Research University, CNRS, Chimie ParisTech, 75231, Paris, France.
| | - Mathieu Lazerges
- Faculté de Pharmacie de Paris, Faculté de Santé, Université de Paris, 4 avenue de l'Observatoire, 75006, Paris, France
| | - Cyrine Slim
- Institute of Chemistry for Life and Health Sciences (iCLeHS), Synthesis, Electrochemistry, Imaging and Analytical Systems for Diagnosis (SEISAD) Team, PSL Research University, CNRS, Chimie ParisTech, 75231, Paris, France.
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Alsabbagh K, Hornung T, Voigt A, Sadir S, Rajabi T, Länge K. Microfluidic Impedance Biosensor Chips Using Sensing Layers Based on DNA-Based Self-Assembled Monolayers for Label-Free Detection of Proteins. BIOSENSORS-BASEL 2021; 11:bios11030080. [PMID: 33805676 PMCID: PMC8001378 DOI: 10.3390/bios11030080] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/08/2021] [Accepted: 03/10/2021] [Indexed: 11/30/2022]
Abstract
A microfluidic chip for electrochemical impedance spectroscopy (EIS) is presented as bio-sensor for label-free detection of proteins by using the example of cardiac troponin I. Troponin I is one of the most specific diagnostic serum biomarkers for myocardial infarction. The microfluidic impedance biosensor chip presented here consists of a microscope glass slide serving as base plate, sputtered electrodes, and a polydimethylsiloxane (PDMS) microchannel. Electrode functionalization protocols were developed considering a possible charge transfer through the sensing layer, in addition to analyte-specific binding by corresponding antibodies and reduction of nonspecific protein adsorption to prevent false-positive signals. Reagents tested for self-assembled monolayers (SAMs) on gold electrodes included thiolated hydrocarbons and thiolated oligonucleotides, where SAMs based on the latter showed a better performance. The corresponding antibody was covalently coupled on the SAM using carbodiimide chemistry. Sampling and measurement took only a few minutes. Application of a human serum albumin (HSA) sample, 1000 ng/mL, led to negligible impedance changes, while application of a troponin I sample, 1 ng/mL, led to a significant shift in the Nyquist plot. The results are promising regarding specific detection of clinically relevant concentrations of biomarkers, such as cardiac markers, with the newly developed microfluidic impedance biosensor chip.
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Affiliation(s)
- Khaled Alsabbagh
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (K.A.); (T.H.); (A.V.); (T.R.)
| | - Tim Hornung
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (K.A.); (T.H.); (A.V.); (T.R.)
| | - Achim Voigt
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (K.A.); (T.H.); (A.V.); (T.R.)
| | - Sahba Sadir
- Institute for Micro Process Engineering, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany;
| | - Taleieh Rajabi
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (K.A.); (T.H.); (A.V.); (T.R.)
| | - Kerstin Länge
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (K.A.); (T.H.); (A.V.); (T.R.)
- Correspondence:
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Brazaca LC, Dos Santos PL, de Oliveira PR, Rocha DP, Stefano JS, Kalinke C, Abarza Muñoz RA, Bonacin JA, Janegitz BC, Carrilho E. Biosensing strategies for the electrochemical detection of viruses and viral diseases - A review. Anal Chim Acta 2021; 1159:338384. [PMID: 33867035 PMCID: PMC9186435 DOI: 10.1016/j.aca.2021.338384] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 02/06/2023]
Abstract
Viruses are the causing agents for many relevant diseases, including influenza, Ebola, HIV/AIDS, and COVID-19. Its rapid replication and high transmissibility can lead to serious consequences not only to the individual but also to collective health, causing deep economic impacts. In this scenario, diagnosis tools are of significant importance, allowing the rapid, precise, and low-cost testing of a substantial number of individuals. Currently, PCR-based techniques are the gold standard for the diagnosis of viral diseases. Although these allow the diagnosis of different illnesses with high precision, they still present significant drawbacks. Their main disadvantages include long periods for obtaining results and the need for specialized professionals and equipment, requiring the tests to be performed in research centers. In this scenario, biosensors have been presented as promising alternatives for the rapid, precise, low-cost, and on-site diagnosis of viral diseases. This critical review article describes the advancements achieved in the last five years regarding electrochemical biosensors for the diagnosis of viral infections. First, genosensors and aptasensors for the detection of virus and the diagnosis of viral diseases are presented in detail regarding probe immobilization approaches, detection methods (label-free and sandwich), and amplification strategies. Following, immunosensors are highlighted, including many different construction strategies such as label-free, sandwich, competitive, and lateral-flow assays. Then, biosensors for the detection of viral-diseases-related biomarkers are presented and discussed, as well as point of care systems and their advantages when compared to traditional techniques. Last, the difficulties of commercializing electrochemical devices are critically discussed in conjunction with future trends such as lab-on-a-chip and flexible sensors.
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Affiliation(s)
- Laís Canniatti Brazaca
- Instituto de Química de São Carlos, Universidade de São Paulo, São Carlos, SP, 13566-590, Brazil; Instituto Nacional de Ciência e Tecnologia de Bioanalítica-INCTBio, Campinas, SP, 13083-970, Brazil.
| | - Pãmyla Layene Dos Santos
- Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, SC, 88040-900, Brazil
| | - Paulo Roberto de Oliveira
- Departamento de Ciências Naturais, Matemática e Educação, Universidade Federal de São Carlos, Araras, SP, 13600-970, Brazil
| | - Diego Pessoa Rocha
- Instituto de Química, Universidade Federal de Uberlândia, Uberlândia, MG, 38400-902, Brazil
| | - Jéssica Santos Stefano
- Departamento de Ciências Naturais, Matemática e Educação, Universidade Federal de São Carlos, Araras, SP, 13600-970, Brazil; Instituto de Química, Universidade Federal de Uberlândia, Uberlândia, MG, 38400-902, Brazil
| | - Cristiane Kalinke
- Instituto de Química, Universidade Estadual de Campinas, Campinas, SP, 13083-859, Brazil
| | - Rodrigo Alejandro Abarza Muñoz
- Instituto Nacional de Ciência e Tecnologia de Bioanalítica-INCTBio, Campinas, SP, 13083-970, Brazil; Instituto de Química, Universidade Federal de Uberlândia, Uberlândia, MG, 38400-902, Brazil
| | - Juliano Alves Bonacin
- Instituto de Química, Universidade Estadual de Campinas, Campinas, SP, 13083-859, Brazil
| | - Bruno Campos Janegitz
- Departamento de Ciências Naturais, Matemática e Educação, Universidade Federal de São Carlos, Araras, SP, 13600-970, Brazil.
| | - Emanuel Carrilho
- Instituto de Química de São Carlos, Universidade de São Paulo, São Carlos, SP, 13566-590, Brazil; Instituto Nacional de Ciência e Tecnologia de Bioanalítica-INCTBio, Campinas, SP, 13083-970, Brazil.
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8
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Hatami Z, Ragheb E, Jalali F, Tabrizi MA, Shamsipur M. Zinc oxide-gold nanocomposite as a proper platform for label-free DNA biosensor. Bioelectrochemistry 2020; 133:107458. [DOI: 10.1016/j.bioelechem.2020.107458] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 01/06/2020] [Accepted: 01/06/2020] [Indexed: 01/15/2023]
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9
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Wen QL, Peng J, Liu AY, Wang J, Hu YL, Ling J, Cao QE. DNA bioassays based on the fluorescence 'turn off' of silver nanocluster beacon. LUMINESCENCE 2020; 35:702-708. [PMID: 31926119 DOI: 10.1002/bio.3775] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 12/23/2019] [Accepted: 12/30/2019] [Indexed: 12/12/2022]
Abstract
Recognition and quantification of oligonucleotide sequences play important roles in medical diagnosis. In this study, a new fluorescent oligonucleotide-stabilized silver nanocluster beacon (NCB) probe was designed for sensitive detection of oligonucleotide sequence targets. This probe contained two tailored DNA strands. One strand was a signal probe strand containing a cytosine-rich strand template for fluorescent silver nanocluster (Ag NC) synthesis and a detection sections at each end. The other strand was a fluorescence enhancing strand containing a guanine-rich section for signal enhancement at one end and a linker section complementary to one end of the signal probe strand. After synthesis of the Ag NCs and hybridization of the two strands, the fluorescence intensity of the as-prepared silver NCB was enhanced 200-fold compared with the Ag NCs. Two NCBs were designed to detect two disease-related oligonucleotide sequences, and results indicated that the two target oligonucleotide sequences in the range 50.0-600.0 and 50.0-200.0 nM could be linearly detected with detection limits of 20 and 25 nM, respectively. The developed fluorescence method using NCBs for oligonucleotide sequence detection was sensitive, facile and had potential for use in bioanalysis and diagnosis.
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Affiliation(s)
- Qiu-Lin Wen
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China
| | - Jun Peng
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China.,Hunan Province Geological Testing Institute, Changsha, China
| | - An-Yong Liu
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China
| | - Jun Wang
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China
| | - Yi-Lin Hu
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China
| | - Jian Ling
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China
| | - Qiu-E Cao
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China
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An electrochemical aptasensor for analysis of MUC1 using gold platinum bimetallic nanoparticles deposited carboxylated graphene oxide. Anal Chim Acta 2019; 1097:186-195. [PMID: 31910959 DOI: 10.1016/j.aca.2019.11.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 11/01/2019] [Accepted: 11/02/2019] [Indexed: 12/18/2022]
Abstract
A simple electrochemical strategy has been designed for the analysis of MUC1 using electrodeposited gold platinum bimetallic nanoparticles (Au-PtBNPs) on the surface of carboxylated graphene oxide (CGO)/FTO electrode as a signal amplification platform. The carboxylic groups of CGO were activated with EDS-NHS linker and subsequently immobilized with streptavidin for further deposition of biotin labelled aptamer. All the modification steps were characterized by FE-SEM, EDS mapping, FT-IR, contact angle measurements and electrochemical methods. After incubating with target protein MUC1, the aptaelectrode produced some concentration dependent responses which were measured electrochemically by DPV assay. The prepared aptasensor exhibits wide linear range from 1 fM-100 nM with detection limit of 0.79 fM under optimal experimental conditions. The performance of this aptaelectrode was also evaluated showing good selectivity, storage stability (15 days), reproducibility and reusability (up to 3 times). Furthermore, the applicability of the aptasensor for spiked serum samples showed recovery range from 92% to 97%.
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A new electrochemical DNA biosensor based on modified carbon paste electrode using graphene quantum dots and ionic liquid for determination of topotecan. Microchem J 2019. [DOI: 10.1016/j.microc.2019.104085] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Khater M, de la Escosura-Muñiz A, Quesada-González D, Merkoçi A. Electrochemical detection of plant virus using gold nanoparticle-modified electrodes. Anal Chim Acta 2018; 1046:123-131. [PMID: 30482289 DOI: 10.1016/j.aca.2018.09.031] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 08/15/2018] [Accepted: 09/13/2018] [Indexed: 10/28/2022]
Abstract
Tristeza is one of the destructive diseases of citrus causing by citrus tristeza virus (CTV). Historically, CTV has been associated with serious outbreaks of quick decline of citrus, therefore CTV monitoring is important aspect for avoiding such re-emerging epidemics, which would threat citrus production through the world. In this context, we have designed for the first time a label-free impedimetric biosensor for the detection of nucleic acid of CTV. The sensing platform based on a screen-printed carbon electrode (SPCE) was modified by electrodeposited gold nanoparticles (AuNPs), which allowed to efficiently immobilizing thiolated ssDNA probes as well to enhance the electrode conductivity. The growth of AuNPs was optimized and characterized using scanning electron microscopy (SEM), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). We investigated the behavior of thiolated ssDNA probe layer and its hybridization with target DNA onto AuNP surfaces by EIS measurements in Fe(CN6)4-/Fe(CN6)3- red-ox system. The main sensor design aspects such as AuNPs size, probe DNA concentration and immobilization time together with DNA hybridization time were optimized so as to achieve the best performance. Impedance values of DNA hybridization increased with Citrus tristeza-related synthetic DNA concentration, showing a logarithmic relation in the range of 0.1-10 μM. The results also indicate that the biosensor was able to selectively detect CTV nucleic acids in the presence of other non-specific DNAs. Moreover, we have demonstrated the good performance of the system in a real plant sample matrix. In addition, the sensor reproducibility enhanced after the hybridization onto MCH/poly (AT) thiolated DNA probes which was confirmed by intra- and inter-day variability assays.
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Affiliation(s)
- Mohga Khater
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and Barcelona Institute of Science and Technology, Campus UAB, 08193, Barcelona, Spain; On Leave from Agricultural Research Center (ARC), Ministry of Agriculture and Land Reclamation, Giza, Egypt
| | - Alfredo de la Escosura-Muñiz
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and Barcelona Institute of Science and Technology, Campus UAB, 08193, Barcelona, Spain
| | - Daniel Quesada-González
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and Barcelona Institute of Science and Technology, Campus UAB, 08193, Barcelona, Spain
| | - Arben Merkoçi
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and Barcelona Institute of Science and Technology, Campus UAB, 08193, Barcelona, Spain; ICREA-Institucio Catalana de Recerca i Estudis Avançats, Pg. Lluís Companys 23, 08010, Barcelona, Spain.
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Tripathy S, Gangwar R, Supraja P, Rao AVSSN, Vanjari SRK, Singh SG. Graphene Doped Mn2
O3
Nanofibers as a Facile Electroanalytical DNA Point Mutation Detection Platform for Early Diagnosis of Breast/Ovarian Cancer. ELECTROANAL 2018. [DOI: 10.1002/elan.201800220] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | - Rahul Gangwar
- Indian Institute of Technology; Hyderabad, Telangana India- 502285
| | - Patta Supraja
- Indian Institute of Technology; Hyderabad, Telangana India- 502285
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Borghei YS, Hosseini M, Ganjali MR, Hosseinkhani S. A novel BRCA1 gene deletion detection in human breast carcinoma MCF-7 cells through FRET between quantum dots and silver nanoclusters. J Pharm Biomed Anal 2018; 152:81-88. [DOI: 10.1016/j.jpba.2018.01.014] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 12/31/2017] [Accepted: 01/08/2018] [Indexed: 02/01/2023]
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Shariati M. The field effect transistor DNA biosensor based on ITO nanowires in label-free hepatitis B virus detecting compatible with CMOS technology. Biosens Bioelectron 2018; 105:58-64. [PMID: 29355779 DOI: 10.1016/j.bios.2018.01.022] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 01/02/2018] [Accepted: 01/10/2018] [Indexed: 12/20/2022]
Abstract
In this paper the field-effect transistor DNA biosensor for detecting hepatitis B virus (HBV) based on indium tin oxide nanowires (ITO NWs) in label free approach has been fabricated. Because of ITO nanowires intensive conductance and functional modified surface, the probe immobilization and target hybridization were increased strongly. The high resolution transmission electron microscopy (HRTEM) measurement showed that ITO nanowires were crystalline and less than 50nm in diameter. The single-stranded hepatitis B virus DNA (SS-DNA) was immobilized as probe on the Au-modified nanowires. The DNA targets were measured in a linear concentration range from 1fM to 10µM. The detection limit of the DNA biosensor was about 1fM. The time of the hybridization process for defined single strand was 90min. The switching ratio of the biosensor between "on" and "off" state was ~ 1.1 × 105. For sensing the specificity of the biosensor, non-complementary, mismatch and complementary DNA oligonucleotide sequences were clearly discriminated. The HBV biosensor confirmed the highly satisfied specificity for differentiating complementary sequences from non-complementary and the mismatch oligonucleotides. The response time of the DNA sensor was 37s with a high reproducibility. The stability and repeatability of the DNA biosensor showed that the peak current of the biosensor retained 98% and 96% of its initial response for measurements after three and five weeks, respectively.
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Affiliation(s)
- Mohsen Shariati
- Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran 14588-89694, Iran.
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Borghei YS, Hosseini M, Ganjali MR. Detection of large deletion in human BRCA1 gene in human breast carcinoma MCF-7 cells by using DNA-Silver Nanoclusters. Methods Appl Fluoresc 2017; 6:015001. [PMID: 28858858 DOI: 10.1088/2050-6120/aa8988] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Here we describe a label-free detection strategy for large deletion mutation in breast cancer (BC) related gene BRCA1 based on a DNA-silver nanocluster (NC) fluorescence upon recognition-induced hybridization. The specific hybridization of DNA templated silver NCs fluorescent probe to target DNAs can act as effective templates for enhancement of AgNCs fluorescence, which can be used to distinguish the deletion of BRCA1 due to different fluorescence intensities. Under the optimal conditions, the fluorescence intensity of the DNA-AgNCs at emission peaks around 440 nm (upon excitation at 350 nm) increased with the increasing deletion type within a dynamic range from 1.0 × 10-10 to 2.4 × 10-6 M with a detection limit (LOD) of 6.4 × 10-11 M. In this sensing system, the normal type shows no significant fluorescence; on the other hand, the deletion type emits higher fluorescence than normal type. Using this nanobiosensor, we successfully determined mutation using the non-amplified genomic DNAs that were isolated from the BC cell line.
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Affiliation(s)
- Yasaman-Sadat Borghei
- Department of Life Science Engineering, Faculty of New Sciences & Technologies, University of Tehran, Tehran, Iran
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