<?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>S2448-56912020000200029</article-id>
<article-id pub-id-type="doi">10.22201/ceiich.24485691e.2020.25.69637</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Biosíntesis y caracterización de nanoestructuras por microscopía electrónica]]></article-title>
<article-title xml:lang="en"><![CDATA[Biosynthesis and characterization of nanostructures by electron microscopy]]></article-title>
</title-group>
<contrib-group>
<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[Ávila-Avilés]]></surname>
<given-names><![CDATA[Rodolfo D.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vilchis-Nestor]]></surname>
<given-names><![CDATA[Alfredo R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Tecnológico Nacional de México Campus Toluca División de Posgrado e Investigación]]></institution>
<addr-line><![CDATA[Metepec Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Politécnico Nacional Centro de Investigación y Estudios Avanzados Departamento de Genética y Biología Molecular]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,UAEM Centro Conjunto de Investigación en Química Sustentable ]]></institution>
<addr-line><![CDATA[Toluca Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2020</year>
</pub-date>
<volume>13</volume>
<numero>25</numero>
<fpage>29</fpage>
<lpage>43</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-56912020000200029&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-56912020000200029&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-56912020000200029&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Los métodos de obtención de nanoestructuras han sido un área de estudio fundamental desde el inicio de la nanotecnología. La biosíntesis de nanoestructuras se inspira en los mecanismos que tienen algunos microrganismos y plantas para subsistir en ambientes con estrés químico. En el presente trabajo se exhiben ejemplos novedosos de biosíntesis que han logrado nuestro grupo de investigación con el fin de obtener nanoestructuras de Ag y Au con morfología fácilmente sintonizable a partir del extracto de hierba del manso (Anemopsis californica) como agente reductor de los iones Ag+1 y Au+3; así como la síntesis asistida con el extracto de té verde (Camellia sinensis) de nanopartículas de magnetita (Fe3O4) con tamaño homogéneo y un excelente control de fase cristalina en comparación con lo reportado en la literatura con métodos biogénicos. Adicionalmente, se demuestra el uso efectivo de biotemplates para diseñar materiales nanoestructurados con métodos de síntesis verde. Por último, se presenta evidencia de las características estructurales, morfológicas y químicas de los nanomateriales generados a partir de biosíntesis con base en la caracterización con microscopía electrónica de transmisión, microscopía electrónica de barrido y espectroscopía de dispersión de energía de rayos-X.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The methods to obtain nanostructures have been a fundamental area of study since the beginning of the nanotechnology. The biosynthesis of nanostructures is inspired by the behavior that some microorganisms and plants have for subsisting in environments with chemical stress. This paper presents newfangled examples of biosynthesis achieved by our research group in order to obtain Ag and Au nanostructures with tunable morphology using Anemopsis californica extract as reducing agent of Ag+1 and Au+3 ions; as well the synthesis assisted by Camellia sinensis extract of magnetite nanoparticles (Fe3O4) with homogeneous size and an excellent crystalline phase control in contrast with other biogenic methods reported in the literature. Additionally, the effective use of biotemplates to design nanostructured materials with green synthesis methods is demonstrated. Finally, the evidence of the nanomaterials generated from biosynthesis was shown via characterization with transmission electron microscopy, scanning electron microscopy and X-ray energy dispersion spectroscopy.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[biosíntesis]]></kwd>
<kwd lng="es"><![CDATA[Camellia sinensis]]></kwd>
<kwd lng="es"><![CDATA[Anemopsis californica]]></kwd>
<kwd lng="es"><![CDATA[nanopartículas de Ag, Au y Fe3O4]]></kwd>
<kwd lng="es"><![CDATA[biotemplate]]></kwd>
<kwd lng="es"><![CDATA[microscopía electrónica]]></kwd>
<kwd lng="en"><![CDATA[biosynthesis]]></kwd>
<kwd lng="en"><![CDATA[Camellia sinensis]]></kwd>
<kwd lng="en"><![CDATA[Anemopsis californica]]></kwd>
<kwd lng="en"><![CDATA[Ag, Au and Fe3O4 nanoparticles]]></kwd>
<kwd lng="en"><![CDATA[biotemplate]]></kwd>
<kwd lng="en"><![CDATA[electron microscopy]]></kwd>
</kwd-group>
</article-meta>
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