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Artículo

Thermo-responsive PNIPAm nanopillars displaying amplified responsiveness through the incorporation of nanoparticles

Giussi, Juan MartínIcon ; Von Bilderling, CatalinaIcon ; Alarcón, Emiliano; Pietrasanta, LiaIcon ; Hernandez, Rebeca; Real, Rafael Perez delIcon ; Vázquez, Manuel; Mijangos Ugarte, Carmen; Cortez, María LorenaIcon ; Azzaroni, OmarIcon
Fecha de publicación: 01/2018
Editorial: Royal Society of Chemistry
Revista: Nanoscale
ISSN: 2040-3364
e-ISSN: 2040-3372
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Físico-Química, Ciencia de los Polímeros, Electroquímica

Resumen

The possibility of combining more than one stimulus-responsive property into a single material holds interesting potential for the creation of adaptive devices to be used in diverse fields such as drug delivery, nanomedicine and tissue engineering. This paper describes a novel material based on thermo-responsive PNIPAm nanopillars with amplified surface properties through the incorporation of Fe3O4 nanoparticles. The incorporation of magnetic nanoparticles into the nanopillars, prepared via surface-initiated atom-transfer radical polymerization in anodized aluminum oxide templates, sharply increased their stiffness and hydrophobicity when increasing the temperature above the volume phase transition temperature. Furthermore, their magnetic response turned out to be proportional to the amount of the incorporated nanoparticles. The possibility of sharply increasing the stiffness with a temperature variation close to the human body temperature paves the way to the application of these substrates as "smart" scaffolds for cell culture. Additionally, the presence of superparamagnetic nanoparticles in the nanopillars offers the possibility of using these nanostructured systems for magnetic hyperthermia.
Palabras clave: PNIPAM , NANOPILLARS , NANOPARTICLES , POLYMER
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial 2.5 Unported (CC BY-NC 2.5)
Identificadores
URI: http://hdl.handle.net/11336/88748
URL: http://www.rsc.org/journals-books-databases/about-journals/nanoscale/
DOI: http://dx.doi.org/10.1039/c7nr06209e
Colecciones
Articulos(IFIBA)
Articulos de INST.DE FISICA DE BUENOS AIRES
Articulos(INIFTA)
Articulos de INST.DE INV.FISICOQUIMICAS TEORICAS Y APLIC.
Citación
Giussi, Juan Martín; Von Bilderling, Catalina; Alarcón, Emiliano; Pietrasanta, Lia; Hernandez, Rebeca; et al.; Thermo-responsive PNIPAm nanopillars displaying amplified responsiveness through the incorporation of nanoparticles; Royal Society of Chemistry; Nanoscale; 10; 3; 1-2018; 1189-1195
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