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

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  • معلومة اضافية
    • بيانات النشر:
      Royal Society of Chemistry
    • Collection:
      CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
    • نبذة مختصرة :
      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. ; Fil: Giussi, Juan Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina ; Fil: Von Bilderling, Catalina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina ; Fil: Alarcón, Emiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. ...
    • File Description:
      application/pdf
    • ISSN:
      2040-3364
      2040-3372
    • Relation:
      info:eu-repo/semantics/altIdentifier/url/http://www.rsc.org/journals-books-databases/about-journals/nanoscale/; http://hdl.handle.net/11336/88748; 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; CONICET Digital; CONICET
    • الدخول الالكتروني :
      http://hdl.handle.net/11336/88748
    • Rights:
      info:eu-repo/semantics/openAccess ; https://creativecommons.org/licenses/by-nc/2.5/ar/
    • الرقم المعرف:
      edsbas.51D0CAB1