<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2224-5421</journal-id>
<journal-title><![CDATA[Revista Cubana de Química]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cub Quim]]></abbrev-journal-title>
<issn>2224-5421</issn>
<publisher>
<publisher-name><![CDATA[Ediciones UO, Universidad de Oriente]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2224-54212021000300367</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[The usefulness of biotinylated h1gag1584 gag gene probe to label-free electrochemical detection proviral DNA for HIV-1]]></article-title>
<article-title xml:lang="es"><![CDATA[La utilidad del oligonucleótido biotinilado del gen gag h1gag1584 para la detección electroquímica sin mediador del ADN proviral del VIH-1]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Balbin-Tamayo]]></surname>
<given-names><![CDATA[Abel I.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Rizo]]></surname>
<given-names><![CDATA[Laura S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Yamanaka]]></surname>
<given-names><![CDATA[Hideko]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mardini-Farias]]></surname>
<given-names><![CDATA[Pércio Augusto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Esteva-Guas]]></surname>
<given-names><![CDATA[Ana Margarita]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,University of Havana Faculty of Chemistry Department of Analytical Chemistry]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,AIDS Research Laboratory (LISIDA)  ]]></institution>
<addr-line><![CDATA[Mayabeque ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,São Paulo State University (UNESP) Institute of Chemistry of Araraquara Department of Analytical Chemistry]]></institution>
<addr-line><![CDATA[SP ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio) Chemistry Department ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Brasil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>33</volume>
<numero>3</numero>
<fpage>367</fpage>
<lpage>382</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2224-54212021000300367&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2224-54212021000300367&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2224-54212021000300367&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The aim of the study is to demonstrate that the biotinylated 19 base oligonucleotide probe of the gag gene H1Gag1584 can be used as a molecular recognition element for the detection of HIV-1 proviral DNA, in two electrochemical detection systems of free laber. Two free leber electrochemical detection systems were evaluated: an impedimetric DNA genosensor using a self-assembled biotin monolayer (SAM) and a voltammetric DNA genosensor by modifying a new epoxy graphite transducer with graphene oxide. The results obtained in this study showed that the biotinylated 19-base oligonucleotide probe of the gag gene H1Gag1584 can be used as a molecular recognition element for the detection of HIV-1 proviral DNA, in two electrochemical detection systems of free labels.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El objetivo del estudio es demostrar que la sonda de oligonucleótidos de 19 bases biotinilada del gen gag H1Gag1584 puede utilizarse como elemento de reconocimiento molecular para la detección de ADN provírico del VIH-1, en dos sistemas de detección electroquímica de etiqueta libre. Se evaluaron dos sistemas de leber libres: un genosensor de ADN impedimétrico que utiliza una monocapa de biotina autoensamblada (SAM) y un genosensor de ADN voltamétrico mediante la modificación de un nuevo transductor de grafito epoxi con óxido de grafeno. Los resultados obtenidos en este estudio mostraron que la sonda de oligonucleótido de 19 bases biotinilada del gen gag H1Gag1584 puede utilizarse como elemento de reconocimiento molecular para la detección de ADN provírico del VIH-1, en dos sistemas de detección electroquímica de marcadores libres.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[probe H1Gag1584]]></kwd>
<kwd lng="en"><![CDATA[Graphite-epoxy]]></kwd>
<kwd lng="en"><![CDATA[Gold]]></kwd>
<kwd lng="en"><![CDATA[Genosensor]]></kwd>
<kwd lng="en"><![CDATA[HIV-1]]></kwd>
<kwd lng="en"><![CDATA[DNA]]></kwd>
<kwd lng="es"><![CDATA[sonda H1Gag1584]]></kwd>
<kwd lng="es"><![CDATA[Grafito-epoxi]]></kwd>
<kwd lng="es"><![CDATA[Oro]]></kwd>
<kwd lng="es"><![CDATA[Genosensor]]></kwd>
<kwd lng="es"><![CDATA[VIH-1]]></kwd>
<kwd lng="es"><![CDATA[ADN]]></kwd>
</kwd-group>
</article-meta>
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