<?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>1870-249X</journal-id>
<journal-title><![CDATA[Journal of the Mexican Chemical Society]]></journal-title>
<abbrev-journal-title><![CDATA[J. Mex. Chem. Soc]]></abbrev-journal-title>
<issn>1870-249X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Química de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-249X2018000100012</article-id>
<article-id pub-id-type="doi">10.29356/jmcs.v62i1.385</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Use in vitro of Gold Nanoparticles Functionalized with Folic Acid as a Photothermal Agent on Treatment of HeLa Cells]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bertel Garay]]></surname>
<given-names><![CDATA[Linda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Méndez Sánchez]]></surname>
<given-names><![CDATA[Stelia Carolina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez Ortega]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Industrial de Santander Centro de Investigaciones en Catálisis ]]></institution>
<addr-line><![CDATA[Guatiguará ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Industrial de Santander Centro de Investigación científica y Tecnológica en Materiales y Nanociencias ]]></institution>
<addr-line><![CDATA[Guatiguará ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Industrial de Santander Grupo de Investigación en Bioquímica y Microbiología ]]></institution>
<addr-line><![CDATA[Guatiguará ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Industrial de Santander Agrobiotech Research Center ]]></institution>
<addr-line><![CDATA[Guatiguará ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2018</year>
</pub-date>
<volume>62</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-249X2018000100012&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-249X2018000100012&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-249X2018000100012&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract. Folic acid (FA) is used as a recognition molecule to achieve selective internalization in cancer cells. Here functionalized gold nanoparticles with folic acid (AuNP-FA) are proposed as suitable therapeutic agents for cervix cancer cells by photothermal damage. The functionalized gold nanoparticles with folic acid were synthesized by mixing hydrogen tetrachloroaurate with folic acid in a molar ratio of 0.56/1 under radiation of mercury lamp (&#955;max=254 nm). HeLa cells were incubated with AuNP-FA during 48 h, then were irradiated and the cytotoxicity was analyzed 12 h after irradiation. The AuNP-FA were dose-dependent cytotoxic under irradiation and not cytotoxic in the absence of radiation. The viability of cancer cells treated with functionalized and non-functionalized gold nanoparticles (AuNPs), with and without near infrared light at 808 nm, was measured by MTT assays. This work provides useful guidance toward the synthesis of biocompatible nanomaterials for biological applications.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen. El ácido fólico es utilizado como molécula de reconocimiento para lograr una internalización selectiva en las células cancerosas. Aquí nanopartículas de oro funcionalizadas con ácido fólico son propuestas como agentes terapéuticos para células de cáncer de cérvix a través de daño fototérmico. Las nanopartículas funcionalizadas con ácido fólico fueron sintetizadas al mezclar tetracloroaurato de hidrógeno con ácido fólico en una relación molar de 0.56/1 bajo la radiación de una lámpara de mercurio (&#955;máx=254 nm). Las células HeLa fueron incubadas con las nanopartículas funcionalizadas durante 48 horas, luego fueron irradiadas y 12 horas después se analizó la citotoxicidad. Las nanopartículas funcionalizadas fueron citotóxicas de manera dosis-dependiente y no citotóxicas en ausencia de radiación. La viabilidad de las células cancerosas tratadas con nanopartículas de oro funcionalizadas y no funcionalizadas, con y sin luz infrarroja cercana a 808 nm, se midió mediante ensayos de MTT. Este trabajo proporciona una guía útil para la síntesis de nanomateriales biocompatibles para aplicaciones biológicas.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Folic acid]]></kwd>
<kwd lng="en"><![CDATA[gold nanoparticles]]></kwd>
<kwd lng="en"><![CDATA[near infrared]]></kwd>
<kwd lng="en"><![CDATA[photothermal effect]]></kwd>
<kwd lng="en"><![CDATA[cancer cells]]></kwd>
<kwd lng="en"><![CDATA[plasmonic photothermal therapy]]></kwd>
<kwd lng="es"><![CDATA[ácido fólico]]></kwd>
<kwd lng="es"><![CDATA[nanopartículas de oro]]></kwd>
<kwd lng="es"><![CDATA[infrarrojo cercano]]></kwd>
<kwd lng="es"><![CDATA[efecto fototérmico]]></kwd>
<kwd lng="es"><![CDATA[células cancerosas]]></kwd>
<kwd lng="es"><![CDATA[terapia fototérmica plasmónica]]></kwd>
</kwd-group>
</article-meta>
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