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Advances in Electrochemical Techniques for the Detection and Analysis of Genetically Modified Organisms: An Analysis Based on Bibliometrics. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10050194] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Since the first successful transgenic plants obtained in 1983, dozens of plants have been tested. On the one hand, genetically modified plants solve the problems of agricultural production. However, due to exogenous genes of transgenic plants, such as its seeds or pollen drift, diffusion between populations will likely lead to superweeds or affect the original traits. The detection technology of transgenic plants and their products have received considerable attention. Electrochemical sensing technology is a fast, low-cost, and portable analysis technology. This review interprets the application of electrochemical technology in the analysis and detection of transgenic products through bibliometrics. A total of 83 research articles were analyzed, spanning 2001 to 2021. We described the different stages in the development history of the subject and the contributions of countries and institutions to the topic. Although there were more annual publications in some years, there was no explosive growth in any period. The lack of breakthroughs in this technology is a significant factor in the lack of experts from other fields cross-examining the subject. Through keyword co-occurrence analysis, different research directions on this topic were discussed. The use of nanomaterials with excellent electrical conductivity allows for more sensitive detection of GM crops by electrochemical sensors. Furthermore, co-citation analysis was used to interpret the most popular reports on the topic. In the end, we predict the future development of this topic according to the analysis results.
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2
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Electrochemically Effective Surface Area of a Polyaniline Nanowire-Based Platinum Microelectrode and Development of an Electrochemical DNA Sensor. JOURNAL OF NANOTECHNOLOGY 2022. [DOI: 10.1155/2022/8947080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Electrochemical DNA sensors based on nanocomposite materials of polyaniline nanowires (PANi NWs) have been published in the literature. However, it is interesting that there are very few research studies related to the development of electrochemical DNA sensors based on PANi NWs individually. In this study, PANi NWs were synthesized site-specifically on a Pt microelectrode with only 0.785 mm2 area using an electropolymerization procedure. The electrosynthesis allows direct deposition of PANi NWs onto the Pt microelectrode in a rapid and cost-effective way. The good properties of PANi NWs including uniform size, uniform distribution throughout the Pt working electrode, and H2SO4 doping which improved the conductivity of the PANi material were obtained. Especially, the electrochemically effective surface area of the PANi NW-based Pt microelectrode determined in this work is nearly 19 times larger than that of the Pt working electrode. The PANi NW layer with large electrochemically effective surface area and high biocompatibility is consistent with the application in electrochemical DNA sensors. The fabricated DNA sensors show advantages such as simple fabrication, direct detection, high sensitivity (with the detection limit of 2.48 × 10−14 M), good specificity, and low sample volume requirement. This study also contributes to confirm the role of PANi NWs in DNA probe immobilization as well as in electrochemical signal transmission in the development of electrochemical DNA sensors.
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3
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Fortunati S, Giannetto M, Rozzi A, Corradini R, Careri M. PNA-functionalized magnetic microbeads as substrates for enzyme-labelled voltammetric genoassay for DNA sensing applied to identification of GMO in food. Anal Chim Acta 2021; 1153:338297. [PMID: 33714443 DOI: 10.1016/j.aca.2021.338297] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/01/2021] [Accepted: 02/02/2021] [Indexed: 11/21/2022]
Abstract
A novel enzyme-labelled voltammetric magnetogenoassay for DNA sensing based on the use of carboxyl-surface coated magnetic microbeads functionalized with PNA probes and subsequent read-out on screen-printed electrode (SPE) substrates was developed. The assay was validated for determination of non-amplified genomic DNA from genetically modified Roundup Ready soy. Outstanding performance with respect to other genoassays requiring preliminary amplification of target DNA via PCR was demonstrated. The analytical performance was also improved compared to previous methods based on the immobilization of the same PNA probes on SPE substrates, since the method was found capable of achieving LOD and LOQ of 415 fM and 995 fM, respectively. The ability of the magnetogenoassay to detect the presence of Roundup Ready soy DNA sequence was tested on genomic DNA extract from European Reference Material soy flours, demonstrating the capability of the method to match the European Union regulation for labelling of food containing a percentage of GM products greater than 0,9%.
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Affiliation(s)
- Simone Fortunati
- Dipartimento di Scienze Chimiche, Della Vita e Della Sostenibilità Ambientale, Università di Parma, Parco Area Delle Scienze 17/A, 43124, Parma, Italy
| | - Marco Giannetto
- Dipartimento di Scienze Chimiche, Della Vita e Della Sostenibilità Ambientale, Università di Parma, Parco Area Delle Scienze 17/A, 43124, Parma, Italy.
| | - Andrea Rozzi
- Dipartimento di Scienze Chimiche, Della Vita e Della Sostenibilità Ambientale, Università di Parma, Parco Area Delle Scienze 17/A, 43124, Parma, Italy
| | - Roberto Corradini
- Dipartimento di Scienze Chimiche, Della Vita e Della Sostenibilità Ambientale, Università di Parma, Parco Area Delle Scienze 17/A, 43124, Parma, Italy
| | - Maria Careri
- Dipartimento di Scienze Chimiche, Della Vita e Della Sostenibilità Ambientale, Università di Parma, Parco Area Delle Scienze 17/A, 43124, Parma, Italy
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4
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Wu J, Lv W, Yang Q, Li H, Li F. Label-free homogeneous electrochemical detection of MicroRNA based on target-induced anti-shielding against the catalytic activity of two-dimension nanozyme. Biosens Bioelectron 2021; 171:112707. [DOI: 10.1016/j.bios.2020.112707] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 09/16/2020] [Accepted: 10/06/2020] [Indexed: 02/07/2023]
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5
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Mattioli IA, Hassan A, Oliveira ON, Crespilho FN. On the Challenges for the Diagnosis of SARS-CoV-2 Based on a Review of Current Methodologies. ACS Sens 2020; 5:3655-3677. [PMID: 33267587 PMCID: PMC7724986 DOI: 10.1021/acssensors.0c01382] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 11/17/2020] [Indexed: 12/13/2022]
Abstract
Diagnosis of COVID-19 has been challenging owing to the need for mass testing and for combining distinct types of detection to cover the different stages of the infection. In this review, we have surveyed the most used methodologies for diagnosis of COVID-19, which can be basically categorized into genetic-material detection and immunoassays. Detection of genetic material with real-time polymerase chain reaction (RT-PCR) and similar techniques has been achieved with high accuracy, but these methods are expensive and require time-consuming protocols which are not widely available, especially in less developed countries. Immunoassays for detecting a few antibodies, on the other hand, have been used for rapid, less expensive tests, but their accuracy in diagnosing infected individuals has been limited. We have therefore discussed the strengths and limitations of all of these methodologies, particularly in light of the required combination of tests owing to the long incubation periods. We identified the bottlenecks that prevented mass testing in many countries, and proposed strategies for further action, which are mostly associated with materials science and chemistry. Of special relevance are the methodologies which can be integrated into point-of-care (POC) devices and the use of artificial intelligence that do not require products from a well-developed biotech industry.
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Affiliation(s)
- Isabela A. Mattioli
- São Carlos Institute of
Chemistry, University of São Paulo,
São Carlos 13560-970, São Paulo,
Brazil
| | - Ayaz Hassan
- São Carlos Institute of
Chemistry, University of São Paulo,
São Carlos 13560-970, São Paulo,
Brazil
| | - Osvaldo N. Oliveira
- São Carlos Institute of
Physics, University of São Paulo,
São Carlos 13560-590, São Paulo,
Brazil
| | - Frank N. Crespilho
- São Carlos Institute of
Chemistry, University of São Paulo,
São Carlos 13560-970, São Paulo,
Brazil
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6
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Fu L, Qian Y, Zhou J, Zheng L, Wang Y. Fluorescence-based quantitative platform for ultrasensitive food allergen detection: From immunoassays to DNA sensors. Compr Rev Food Sci Food Saf 2020; 19:3343-3364. [PMID: 33337031 DOI: 10.1111/1541-4337.12641] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 08/12/2020] [Accepted: 09/01/2020] [Indexed: 01/10/2023]
Abstract
Food allergies are global health issue with an increasing prevalence that affect food safety; hence, food allergen detection, labeling, and management are considered to be important priorities in the food industry. In this critical review, we provide a comprehensive overview of several fluorescence-based platforms based on different biorecognition ligands, such as antibodies, DNA, aptamers, and cells, for food allergen quantification. Traditional analytical methods are generally unsuitable for food manufacturers to accomplish the real-time identification of food allergens in food products. Therefore, it is important to develop simple, rapid, inexpensive, accurate, and sensitive methods to improve user accessibility. A fluorescence-based quantitative platform provides an excellent detection platform for food allergens because of its high sensitivity. This review summarizes the traditional antibody-based fluorescent techniques for food allergen detection, such as the time-resolved fluoroimmunoassay , immunofluorescence imaging, fluorescence enzyme-linked immune sorbent assay, flow injection fluoroimmunoassay, and fluorescence immunosensors. However, these methods suffer from disadvantages such as the significant rate of false-positive and false-negative results due to antibody cross-reactivity with nontarget food components in the complex food matrix and epitope degradation during food processing. Hence, different types of fluorescence-based immunoassays are suitable for standardization and quantification of allergens in fresh foods. In addition, we summarize new fluorescence-based quantitative platforms, including fluorescence genosensors, fluorescence cell sensors, and fluorescence aptamer sensors. With the advantages of high sensitivity and simple operation, fluorescence biosensors will have great potential in the future and could provide portable methods for multiallergen real-time detection in complex food systems.
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Affiliation(s)
- Linglin Fu
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, People's Republic of China
| | - Yifan Qian
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, People's Republic of China
| | - Jinru Zhou
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, People's Republic of China
| | - Lei Zheng
- School of Food Science and Engineering, Hefei University of Technology, Hefei, People's Republic of China
| | - Yanbo Wang
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, People's Republic of China
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7
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Ahmed N, Al-Madhagi S, Ortiz M, O'Sullivan CK, Katakis I. Direct electrochemical detection of enzyme labelled, isothermally amplified DNA. Anal Biochem 2020; 598:113705. [PMID: 32246925 DOI: 10.1016/j.ab.2020.113705] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/22/2020] [Accepted: 03/28/2020] [Indexed: 10/24/2022]
Abstract
Genosensors for the detection of DNA via hybridisation normally require post-amplification processing such as the generation of single-stranded DNA and pre-detection labelling, complicating and lengthening the assay. A straightforward electrochemical genosensor, for the direct detection of isothermally generated nucleic acid amplicons via hybridisation is reported. The detection of Karlodinium armiger, responsible for harmful algae blooms was used as a model system to demonstrate the proof of concept. The approach exploits the use of specifically modified primers designed to generate amplicons with a central duplex flanked by a single-stranded tail at one end of the duplex and a horse-radish peroxidase on the other end. Individual gold electrodes of an array were functionalised with self-assembled monolayers of short thiolated DNA probes, designed to hybridise with the single-stranded tailed amplicon with the reporter enzyme label incorporated. The optimum amplification time was determined to be 60 min, at a fixed temperature of 37 °C. The hybridisation time to the enzyme labelled amplicon was optimised to be 10 min, but 2 min hybridisation time was also adequate. In this first example of using horse radish peroxidase-labelled primer in solution-phase recombinase polymerase amplification for subsequent detection via solid-phase hybridisation, the detection limit achieved was 0.4 fM, equivalent to 27622 cells/L, and the developed genosensor was applied to the detection of synthetic as well as genomic DNA, which had been extracted from a seawater sample.
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Affiliation(s)
- Nihad Ahmed
- Interfibio Consolidated Research Group, Department of Chemical Engineering, Universitat Rovira I Virgili, Avinguda Països Catalans 26, 43007, Tarragona, Spain
| | - Sallam Al-Madhagi
- Interfibio Consolidated Research Group, Department of Chemical Engineering, Universitat Rovira I Virgili, Avinguda Països Catalans 26, 43007, Tarragona, Spain
| | - Mayreli Ortiz
- Interfibio Consolidated Research Group, Department of Chemical Engineering, Universitat Rovira I Virgili, Avinguda Països Catalans 26, 43007, Tarragona, Spain
| | - Ciara K O'Sullivan
- Interfibio Consolidated Research Group, Department of Chemical Engineering, Universitat Rovira I Virgili, Avinguda Països Catalans 26, 43007, Tarragona, Spain; ICREA, Passeig Lluís Companys 23, 08010, Barcelona, Spain.
| | - Ioanis Katakis
- Interfibio Consolidated Research Group, Department of Chemical Engineering, Universitat Rovira I Virgili, Avinguda Països Catalans 26, 43007, Tarragona, Spain
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8
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Trotter M, Borst N, Thewes R, von Stetten F. Review: Electrochemical DNA sensing – Principles, commercial systems, and applications. Biosens Bioelectron 2020; 154:112069. [DOI: 10.1016/j.bios.2020.112069] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 01/28/2020] [Accepted: 02/01/2020] [Indexed: 02/06/2023]
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9
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Campuzano S, Ruiz-Valdepeñas Montiel V, Serafín V, Yáñez-Sedeño P, Pingarrón JM. Cutting-Edge Advances in Electrochemical Affinity Biosensing at Different Molecular Level of Emerging Food Allergens and Adulterants. BIOSENSORS 2020; 10:E10. [PMID: 32041251 PMCID: PMC7168206 DOI: 10.3390/bios10020010] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/29/2020] [Accepted: 02/04/2020] [Indexed: 12/13/2022]
Abstract
The presence of allergens and adulterants in food, which represents a real threat to sensitized people and a loss of consumer confidence, is one of the main current problems facing society. The detection of allergens and adulterants in food, mainly at the genetic level (characteristic fragments of genes that encode their expression) or at functional level (protein biomarkers) is a complex task due to the natural interference of the matrix and the low concentration at which they are present. Methods for the analysis of allergens are mainly divided into immunological and deoxyribonucleic acid (DNA)-based assays. In recent years, electrochemical affinity biosensors, including immunosensors and biosensors based on synthetic sequences of DNA or ribonucleic acid (RNA), linear, aptameric, peptide or switch-based probes, are gaining special importance in this field because they have proved to be competitive with the methods commonly used in terms of simplicity, test time and applicability in different environments. These unique features make them highly promising analytical tools for routine determination of allergens and food adulterations at the point of care. This review article discusses the most significant trends and developments in electrochemical affinity biosensing in this field over the past two years as well as the challenges and future prospects for this technology.
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Affiliation(s)
- Susana Campuzano
- Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain; (V.R.-V.M.); (V.S.); (P.Y.-S.)
| | | | | | | | - José Manuel Pingarrón
- Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain; (V.R.-V.M.); (V.S.); (P.Y.-S.)
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10
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Lin L, Zheng Q, Lin J, Yuk HG, Guo L. Immuno- and nucleic acid-based current technique for Salmonella detection in food. Eur Food Res Technol 2020. [DOI: 10.1007/s00217-019-03423-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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11
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Sousa JB, Ramos-Jesus J, Silva LC, Pereira C, de-Los-Santos-Álvarez N, Fonseca RAS, Miranda-Castro R, Delerue-Matos C, Santos Júnior JR, Barroso MF. Fe 3O 4@Au nanoparticles-based magnetoplatform for the HMGA maize endogenous gene electrochemical genosensing. Talanta 2019; 206:120220. [PMID: 31514891 DOI: 10.1016/j.talanta.2019.120220] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 07/29/2019] [Accepted: 08/02/2019] [Indexed: 11/25/2022]
Abstract
This work addresses a technological advance applied to the construction of a magnetogenoassay with electrochemical transduction for the maize taxon-specific (HMGA gene) detection using gold-coated magnetic nanoparticles as nanosized platform. Superparamagnetic core-shell Fe3O4@Au nanoparticles (10.4 ± 1.7 nm) were used to assemble the genoassay through the covalent immobilization of HMGA DNA probes onto carboxylated self-assembled monolayers at the nanoparticles surface. A hybridization reaction using sandwich format was selected to prevent inefficient hybridization connected with stable secondary DNA structures using also fluorescein isothiocyanate as DNA signaling tag. The labelling of the hybridization reaction with enzymes allowed the chronoamperometric measurement of the peroxidase activity linked to the nanoplatform located on gold surface. Using this electrochemical magnetogenoassay a linear concentration range from 0.5 to 5 nM and a LOD of 90 pM with a RSD <1.2% was calculated. Certified maize was evaluated without further purification after PCR amplification. This work highlights the efficacy of the electrochemical magnetogenoassay for the HMGA detection, showing its potential as alternative procedure for the verification of the compliance of the legislation.
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Affiliation(s)
- Juliana Beatriz Sousa
- Programa de Pós-graduação em Biotecnologia - RENORBIO, Pró-reitoria de pesquisa e pós-graduação, Universidade Federal do Piauí - UFPI, Teresina, Brasil; REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Porto, Portugal
| | - Joilson Ramos-Jesus
- Núcleo de Pesquisa em Biodiversidade e Biotecnologia, UFPI, Parnaíba, Brazil
| | - L C Silva
- Instituto de Ciências Biológicas - ICB/UPE, Recife, Brazil
| | - C Pereira
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Porto, Portugal
| | | | | | - R Miranda-Castro
- Dpto. Química Física y Analítica, Universidad de Oviedo, Oviedo, Spain
| | - C Delerue-Matos
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Porto, Portugal
| | - J Ribeiro Santos Júnior
- Programa de Pós-graduação em Biotecnologia - RENORBIO, Pró-reitoria de pesquisa e pós-graduação, Universidade Federal do Piauí - UFPI, Teresina, Brasil
| | - M Fátima Barroso
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Porto, Portugal.
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12
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Ultrasensitive electrochemical genosensor for detection of CaMV35S gene with Fe 3O 4-Au@Ag nanoprobe. Talanta 2019; 206:120205. [PMID: 31514877 DOI: 10.1016/j.talanta.2019.120205] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 07/26/2019] [Accepted: 07/31/2019] [Indexed: 12/14/2022]
Abstract
We report an attomolar sensitive electrochemical genosensor for the detection of cauliflower mosaic virus 35S (CaMV35S) gene. The sandwich-type genosensor uses gold-silver core-shell (Au@Ag)-loaded iron oxide (Fe3O4) nanocomposite (Fe3O4-Au@Ag) as label of signal DNA probe (sDNA). Electrochemical sensing is accomplished at interface of electrodeposited AuNPs and carboxylated multiwalled carbon nanotubes-modified glassy carbon electrode through the specific interaction between the capture probe and target CaMV35S (tDNA), and tDNA and the labeled sDNA. The detection sensitivity was improved by the amplified reduction signal of hydrogen peroxide (H2O2), which takes advantage of the enhanced electrocatalytic activity of Fe3O4-Au@Ag. Under the optimal experimental conditions, an ultralow limit of detection was calculated to be 1.26 × 10-17 M (S/N = 3), and the blank value subtracted reduction signal of H2O2 of the sensor increased linearly with the logarithm of CaMV35S concentration over a wide range (1 × 10-16 M to 1 × 10-10 M). This genosensor displayed excellent stability, selectivity and reproducibility, and was successful in detecting the target CaMV35S in genetically modified tomato samples.
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Fortunati S, Rozzi A, Curti F, Giannetto M, Corradini R, Careri M. Novel amperometric genosensor based on peptide nucleic acid (PNA) probes immobilized on carbon nanotubes-screen printed electrodes for the determination of trace levels of non-amplified DNA in genetically modified (GM) soy. Biosens Bioelectron 2019; 129:7-14. [PMID: 30682690 DOI: 10.1016/j.bios.2019.01.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 01/07/2019] [Accepted: 01/11/2019] [Indexed: 02/09/2023]
Abstract
A novel amperometric genosensor based on PNA probes covalently bound on the surface of Single Walled Carbon Nanotubes - Screen Printed Electrodes (SWCNT-SPEs) was developed and validated in samples of non-amplified genomic DNA extracted from genetically modified (GM)-Soy. The sandwich assay is based on a first recognition of a 20-mer portion of the target DNA by a complementary PNA Capture Probe (CP) and a second hybridization with a PNA Signalling Probe (SP), with a complementary sequence to a different portion of the target DNA. The SP was labelled with biotin to measure current signal by means of a final incubation of an Alkaline Phosphatase-streptavidin conjugate (ALP-Strp). The electrochemical detection was carried out using hydroquinone diphosphate (HQDP) as enzymatic substrate. The genoassay provided a linear range from 250 pM to 2.5 nM, LOD of 64 pM and LOQ of 215 pM Excellent selectivity towards one base mismatch (1-MM) or scrambled (SCR) sequences was obtained. A simple protocol for extraction and analysis of non-amplified soybean genomic DNA without sample treatment was developed and validated. Our study provides insight into how the outstanding recognition efficiency of PNAs can be combined with the unique properties of CNTs in terms of signal response enhancement for direct detection of genomic DNA samples at the level of interest without previous amplification.
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Affiliation(s)
- Simone Fortunati
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy
| | - Andrea Rozzi
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy
| | - Federica Curti
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy
| | - Marco Giannetto
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - Roberto Corradini
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - Maria Careri
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy
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14
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Single-Walled Carbon Nanotubes as Enhancing Substrates for PNA-Based Amperometric Genosensors. SENSORS 2019; 19:s19030588. [PMID: 30704111 PMCID: PMC6387446 DOI: 10.3390/s19030588] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 01/16/2019] [Accepted: 01/28/2019] [Indexed: 12/20/2022]
Abstract
A new amperometric sandwich-format genosensor has been implemented on single-walled carbon nanotubes screen printed electrodes (SWCNT-SPEs) and compared in terms of performance with analogous genoassays developed using the same methodology on non-nanostructured glassy carbon platforms (GC-SPE). The working principle of the genosensors is based on the covalent immobilization of Peptide Nucleic Acid (PNA) capture probes (CP) on the electrode surface, carried out through the carboxylic functions present on SWCNT-SPEs (carboxylated SWCNT) or electrochemically induced on GC-SPEs. The sequence of the CP was complementary to a 20-mer portion of the target DNA; a second biotin-tagged PNA signalling probe (SP), with sequence complementary to a different contiguous portion of the target DNA, was used to obtain a sandwich hybrid with an Alkaline Phosphatase-streptavidin conjugate (ALP-Strp). Comparison of the responses obtained from the SWCNT-SPEs with those produced from the non-nanostructured substrates evidenced the remarkable enhancement effect given by the nanostructured electrode platforms, achieved both in terms of loading capability of PNA probes and amplification of the electron transfer phenomena exploited for the signal transduction, giving rise to more than four-fold higher sensitivity when using SWCNT-SPEs. The nanostructured substrate allowed to reach limit of detection (LOD) of 71 pM and limit of quantitation (LOQ) of 256 pM, while the corresponding values obtained with GC-SPEs were 430 pM and 1.43 nM, respectively.
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15
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Barrias S, Fernandes JR, Eiras-Dias JE, Brazão J, Martins-Lopes P. Label free DNA-based optical biosensor as a potential system for wine authenticity. Food Chem 2019; 270:299-304. [DOI: 10.1016/j.foodchem.2018.07.058] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 07/06/2018] [Accepted: 07/09/2018] [Indexed: 12/22/2022]
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16
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Guo Y, Sun Y, Wang Y, He H, Zhu Y. Thiol- and alkyne-functionalized copper nanoparticles as electrocatalysts for bisphenol A (BPA) oxidation. J Solid State Electrochem 2018. [DOI: 10.1007/s10008-018-4114-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Bertok T, Lorencova L, Chocholova E, Jane E, Vikartovska A, Kasak P, Tkac J. Electrochemical Impedance Spectroscopy Based Biosensors: Mechanistic Principles, Analytical Examples and Challenges towards Commercialization for Assays of Protein Cancer Biomarkers. ChemElectroChem 2018. [DOI: 10.1002/celc.201800848] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Tomas Bertok
- Department of Glycobiotechnology Institution of ChemistrySlovak Academy of Sciences Dubravska cesta 9 845 38 Bratislava Slovakia
| | - Lenka Lorencova
- Department of Glycobiotechnology Institution of ChemistrySlovak Academy of Sciences Dubravska cesta 9 845 38 Bratislava Slovakia
| | - Erika Chocholova
- Department of Glycobiotechnology Institution of ChemistrySlovak Academy of Sciences Dubravska cesta 9 845 38 Bratislava Slovakia
| | - Eduard Jane
- Department of Glycobiotechnology Institution of ChemistrySlovak Academy of Sciences Dubravska cesta 9 845 38 Bratislava Slovakia
| | - Alica Vikartovska
- Department of Glycobiotechnology Institution of ChemistrySlovak Academy of Sciences Dubravska cesta 9 845 38 Bratislava Slovakia
| | - Peter Kasak
- Center for Advanced MaterialsQatar University Doha 2713 Qatar
| | - Jan Tkac
- Department of Glycobiotechnology Institution of ChemistrySlovak Academy of Sciences Dubravska cesta 9 845 38 Bratislava Slovakia
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Neethirajan S, Weng X, Tah A, Cordero J, Ragavan K. Nano-biosensor platforms for detecting food allergens – New trends. SENSING AND BIO-SENSING RESEARCH 2018. [DOI: 10.1016/j.sbsr.2018.02.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Vasilescu A, Nunes G, Hayat A, Latif U, Marty JL. Electrochemical Affinity Biosensors Based on Disposable Screen-Printed Electrodes for Detection of Food Allergens. SENSORS (BASEL, SWITZERLAND) 2016; 16:E1863. [PMID: 27827963 PMCID: PMC5134522 DOI: 10.3390/s16111863] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 10/24/2016] [Accepted: 10/31/2016] [Indexed: 01/04/2023]
Abstract
Food allergens are proteins from nuts and tree nuts, fish, shellfish, wheat, soy, eggs or milk which trigger severe adverse reactions in the human body, involving IgE-type antibodies. Sensitive detection of allergens in a large variety of food matrices has become increasingly important considering the emergence of functional foods and new food manufacturing technologies. For example, proteins such as casein from milk or lysozyme and ovalbumin from eggs are sometimes used as fining agents in the wine industry. Nonetheless, allergen detection in processed foods is a challenging endeavor, as allergen proteins are degraded during food processing steps involving heating or fermentation. Detection of food allergens was primarily achieved via Enzyme-Linked Immuno Assay (ELISA) or by chromatographic methods. With the advent of biosensors, electrochemical affinity-based biosensors such as those incorporating antibodies and aptamers as biorecognition elements were also reported in the literature. In this review paper, we highlight the success achieved in the design of electrochemical affinity biosensors based on disposable screen-printed electrodes towards detection of protein allergens. We will discuss the analytical figures of merit for various disposable screen-printed affinity sensors in relation to methodologies employed for immobilization of bioreceptors on transducer surface.
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Affiliation(s)
- Alina Vasilescu
- International Centre of Biodynamics, 1B Intrarea Portocalelor, sector 6, 060101 Bucharest, Romania.
| | - Gilvanda Nunes
- Technological Chemistry Department, Federal University of Maranhão, CCET/UFMA, Av. Portugueses, Cidade Universitária do Canga, 65080-040 São Luis, MA, Brazil.
| | - Akhtar Hayat
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM) COMSATS Institute of Information Technology (CIIT), 54000 Lahore, Pakistan.
| | - Usman Latif
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM) COMSATS Institute of Information Technology (CIIT), 54000 Lahore, Pakistan.
| | - Jean-Louis Marty
- BAE Laboratory, Université de Perpignan Via Domitia, 52 Avenue Paul Alduy, 66860 Perpignan, France.
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