<?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>0370-3908</journal-id>
<journal-title><![CDATA[Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. acad. colomb. cienc. exact. fis. nat.]]></abbrev-journal-title>
<issn>0370-3908</issn>
<publisher>
<publisher-name><![CDATA[Academia Colombiana de Ciencias Exactas, Físicas y Naturales]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0370-39082023000300654</article-id>
<article-id pub-id-type="doi">10.18257/raccefyn.1770</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Poly(lactic acid): Synthesis, modification and applications in controlled drug delivery]]></article-title>
<article-title xml:lang="es"><![CDATA[Poli(ácido láctico): síntesis, modificación y aplicaciones en el transporte controlado de medicamentos]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Osório]]></surname>
<given-names><![CDATA[Betty L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Palacio-Betancur]]></surname>
<given-names><![CDATA[Juliana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Antioquia  ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional de Colombia  ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2023</year>
</pub-date>
<volume>47</volume>
<numero>184</numero>
<fpage>654</fpage>
<lpage>667</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0370-39082023000300654&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0370-39082023000300654&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0370-39082023000300654&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Poly(lactic acid) (PLA) is the most promising biodegradable alternative to replace conventional petrochemical-based polymers in manufacturing high-performance materials. Here we review the main methods to obtain polylactic acid and briefly discuss its functionalization and application in the field of controlled drug release. We conducted a bibliographic search of scientific databases and summarized the results of the research carried out by our group. We show that the most commonly used PLA modifications in drug delivery systems are functionalization with glycolic acid (GA) and polyethylene glycol (PEG) through copolymerization or blending, where the use of compatibilizers is essential for good adhesion. Active vectorization is discussed as its choice depends on the size of the nanoparticle and the type of disease to be treated.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El poli(ácido láctico) (PLA) es la alternativa biodegradable más prometedora para reemplazar los polímeros convencionales de base petroquímica en la fabricación de materiales de alto rendimiento. El objetivo de esta revisión es reportar los principales métodos de obtención de ácido poliláctico y discutir brevemente su funcionalización y aplicación en el campo de la liberación controlada de fármacos. Se hizo una búsqueda bibliográfica en bases de datos científicas y se muestran los resultados de algunas investigaciones de nuestro Grupo de Ciencia de los Materiales. Las modificaciones de PLA más utilizadas para su aplicación en los sistemas de administración de fármacos son la funcionalización con ácido glicólico (GA) y el etilenglicol (PEG) por copolimerización o mezcla, en la que el uso de compatibilizadores es importante para lograr una buena adhesión. Se discute la vectorización pasiva y activa, cuya elección depende del tamaño de la nanopartícula y del tipo de enfermedad a tratar.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[PLA]]></kwd>
<kwd lng="en"><![CDATA[PLGA]]></kwd>
<kwd lng="en"><![CDATA[PLA-PEG]]></kwd>
<kwd lng="en"><![CDATA[Nanoparticles]]></kwd>
<kwd lng="en"><![CDATA[Copolymers]]></kwd>
<kwd lng="en"><![CDATA[Controlled drug delivery]]></kwd>
<kwd lng="es"><![CDATA[PLA]]></kwd>
<kwd lng="es"><![CDATA[PLGA]]></kwd>
<kwd lng="es"><![CDATA[PLA-PEG]]></kwd>
<kwd lng="es"><![CDATA[Nanopartículas]]></kwd>
<kwd lng="es"><![CDATA[Copolímeros]]></kwd>
<kwd lng="es"><![CDATA[Liberación controlada de drogas]]></kwd>
</kwd-group>
</article-meta>
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