<?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>2448-5691</journal-id>
<journal-title><![CDATA[Mundo nano. Revista interdisciplinaria en nanociencias y nanotecnología]]></journal-title>
<abbrev-journal-title><![CDATA[Mundo nano]]></abbrev-journal-title>
<issn>2448-5691</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Ciencias Aplicadas y Tecnología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2448-56912018000200045</article-id>
<article-id pub-id-type="doi">10.22201/ceiich.24485691e.2018.21.62549</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Acrílico termopolimerizable enriquecido con nanopartículas de cobre: evaluación antibacteriana y citotóxica]]></article-title>
<article-title xml:lang="en"><![CDATA[Thermo-polymerizable acrylic enriched with copper nanoparticles: Antibacterial and cytotoxic evaluation]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Argueta-Figueroa]]></surname>
<given-names><![CDATA[Liliana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mesta-Pichardo]]></surname>
<given-names><![CDATA[Daniela Itzel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres-Gómez]]></surname>
<given-names><![CDATA[Nayely]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Alvarez]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Paulino-González]]></surname>
<given-names><![CDATA[Ángel David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arenas-Arrocena]]></surname>
<given-names><![CDATA[M. C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Escuela Nacional de Estudios Superiores Laboratorio de Investigación Interdisciplinaria]]></institution>
<addr-line><![CDATA[León Guanajuato]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma del Estado de México Centro Conjunto de Investigación en Química Sustentable ]]></institution>
<addr-line><![CDATA[Toluca Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Consejo Nacional de Ciencia y Tecnología  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<volume>11</volume>
<numero>21</numero>
<fpage>45</fpage>
<lpage>60</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-56912018000200045&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-56912018000200045&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-56912018000200045&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El objetivo de este estudio fue determinar la inhibición bacteriana sobre S. aureus, E. coli y E. faecalis, así como la citotoxicidad de acrílico termopolimerizable (PMMA) enriquecido con nanopartículas de cobre (Cu NPS) sobre fibroblastos gingivales humanos Las Cu NPS resultan un área de interés en odontología especialmente por su potencial efecto antibacterial. El pmma es uno de los materiales cuyo uso se encuentra muy difundido en la actual práctica odontológica, pero presenta proliferación bacteriana y fúngica, por lo cual es necesario buscar nuevas estrategias para su mejoramiento. Los datos obtenidos en el presente estudio muestran que la incorporación de Cu NPS en la superficie del PMMA mejora sus propiedades antibacterianas, ya sea a través de la inhibición del crecimiento bacteriano, así como en la adhesión bacteriana a su superficie. Además, exhibe adecuada citotoxicidad ya que ésta resultó ser de ligera a moderada. Debido a lo anterior, este material podría ser una opción para ser empleado en bases de prótesis removibles de PMMA termocurable.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The objective of this study was to determine the bacterial inhibition on S. aureus, E. coli and E. faecalis, as well as the cytotoxicity of thermo&#8211;polymerizable acrylic (PMMA) enriched with copper nanoparticles (Cu NPS) on human gingival fibroblasts. Cu NPS are an area of interest in dentistry especially for its potential antibacterial effect. PMMA is one of the materials whose use is very widespread in current dental practice, but it has bacterial and fungal proliferation, which is why it is necessary to look for new strategies for its improvement. The data obtained in the present study show that the incorporation of Cu NPS in the surface of the PMMA improves its antibacterial properties, either through the inhibition of the bacterial growth, as well as in the bacterial adhesion to its surface. In addition, it exhibits adequate cytotoxicity since it turned out to be light to moderate. Due to the above, this material could be an option to be used in removable prosthesis bases of thermocurable PMMA.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[nanopartículas de cobre]]></kwd>
<kwd lng="es"><![CDATA[resinas acrílicas]]></kwd>
<kwd lng="es"><![CDATA[crecimiento bacteriano]]></kwd>
<kwd lng="es"><![CDATA[viabilidad celular]]></kwd>
<kwd lng="es"><![CDATA[biocompatibilidad]]></kwd>
<kwd lng="en"><![CDATA[copper nanoparticles]]></kwd>
<kwd lng="en"><![CDATA[acrylic resins]]></kwd>
<kwd lng="en"><![CDATA[bacterial growth]]></kwd>
<kwd lng="en"><![CDATA[cell viability]]></kwd>
<kwd lng="en"><![CDATA[biocompatibility]]></kwd>
</kwd-group>
</article-meta>
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