Articles producció científica> Enginyeria Química

Duplex Electrochemical DNA Sensor to Detect Bacillus anthracis CAP and PAG DNA Targets Based on the Incorporation of Tailed Primers and Ferrocene-Labeled dATP

  • Identification data

    Identifier: imarina:6016141
    Authors:
    Magrina, IvanJauset-Rubio, MiriamOrtiz, MayreliTomaso, HerbertSimonova, AnnaHocek, MichalO'Sullivan, Ciara K
    Abstract:
    We report the duplex amplification of two plasmid DNA markers involved in the virulence of Bacillus anthracis, CAP and PAG, and the direct electrochemical detection of these amplicons. The method consists of the simultaneous amplification of the two targets in a single-pot reaction via polymerase chain reaction (PCR) using tailed primers and ferrocene-labeled dATP. Following amplification, the PCR products hybridize to probes immobilized on electrodes in a microfabricated electrode array chip. The incorporated ferrocene labeled dATP is then detected using square wave voltammetry. We evaluated the effect of electrolyte cations, anions, and concentration to condense, bend, and shrink double-stranded DNA and their effect on the intensity of the ferrocene signal. We obtained detection limits 40.8 and 3.4 fM for CAP and PAG targets, respectively. We successfully developed a method to detect the presence of both targets in genomic DNA extracted from real samples.
  • Others:

    Author, as appears in the article.: Magrina, Ivan; Jauset-Rubio, Miriam; Ortiz, Mayreli; Tomaso, Herbert; Simonova, Anna; Hocek, Michal; O'Sullivan, Ciara K
    Department: Enginyeria Química
    URV's Author/s: Jauset Rubio, Miriam / Magriñá Lobato, Ivan / O'SULLIVAN, CIARA KATHLEEN / Ortíz Rodríguez, Mayreli
    Keywords: Triphosphates Redox label Real Number Nucleotides Identification Gene Francisella-tularensis Assays Amplification
    Abstract: We report the duplex amplification of two plasmid DNA markers involved in the virulence of Bacillus anthracis, CAP and PAG, and the direct electrochemical detection of these amplicons. The method consists of the simultaneous amplification of the two targets in a single-pot reaction via polymerase chain reaction (PCR) using tailed primers and ferrocene-labeled dATP. Following amplification, the PCR products hybridize to probes immobilized on electrodes in a microfabricated electrode array chip. The incorporated ferrocene labeled dATP is then detected using square wave voltammetry. We evaluated the effect of electrolyte cations, anions, and concentration to condense, bend, and shrink double-stranded DNA and their effect on the intensity of the ferrocene signal. We obtained detection limits 40.8 and 3.4 fM for CAP and PAG targets, respectively. We successfully developed a method to detect the presence of both targets in genomic DNA extracted from real samples.
    Thematic Areas: Química Interdisciplinar General chemistry General chemical engineering Engenharias ii Ciências agrárias i Chemistry, multidisciplinary Chemistry (miscellaneous) Chemistry (all) Chemical engineering (miscellaneous) Chemical engineering (all)
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 24701343
    Author's mail: mayreli.ortiz@urv.cat miriam.jauset@urv.cat mayreli.ortiz@urv.cat
    Author identifier: 0000-0002-9423-0055 0000-0002-9943-6132 0000-0002-9423-0055
    Record's date: 2024-10-26
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://pubs.acs.org/doi/abs/10.1021/acsomega.9b02890
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Acs Omega. 4 (26): 21900-21908
    APA: Magrina, Ivan; Jauset-Rubio, Miriam; Ortiz, Mayreli; Tomaso, Herbert; Simonova, Anna; Hocek, Michal; O'Sullivan, Ciara K (2019). Duplex Electrochemical DNA Sensor to Detect Bacillus anthracis CAP and PAG DNA Targets Based on the Incorporation of Tailed Primers and Ferrocene-Labeled dATP. Acs Omega, 4(26), 21900-21908. DOI: 10.1021/acsomega.9b02890
    Article's DOI: 10.1021/acsomega.9b02890
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2019
    Publication Type: Journal Publications
  • Keywords:

    Chemical Engineering (Miscellaneous),Chemistry (Miscellaneous),Chemistry, Multidisciplinary
    Triphosphates
    Redox label
    Real
    Number
    Nucleotides
    Identification
    Gene
    Francisella-tularensis
    Assays
    Amplification
    Química
    Interdisciplinar
    General chemistry
    General chemical engineering
    Engenharias ii
    Ciências agrárias i
    Chemistry, multidisciplinary
    Chemistry (miscellaneous)
    Chemistry (all)
    Chemical engineering (miscellaneous)
    Chemical engineering (all)
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