Free-standing poly(l-lactic acid) nanofilms loaded with superparamagnetic nanoparticles

Silvia Taccola, Andrea Desii, Virginia Pensabene, Toshinori Fujie, Akihiro Saito, Shinji Takeoka, Paolo Dario, Arianna Menciassi, Virgilio Mattoli

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

Freely suspended nanocomposite thin films based on soft polymers and functional nanostructures have been widely investigated for their potential application as active elements in microdevices. However, most studies are focused on the preparation of nanofilms composed of polyelectrolytes and charged colloidal particles. Here, a new technique for the preparation of poly(l-lactic acid) free-standing nanofilms embeddidng superparamagnetic iron oxide nanoparticles is presented. The fabrication process, based on a spin-coating deposition approach, is described, and the influence of each production parameter on the morphology and magnetic properties of the final structure is investigated. Superparamagnetic free-standing nanofilms were obtained, as evidenced by a magnetization hysteresis measurement performed with a superconducting quantum interference device (SQUID). Nanofilm surface morphology and thickness were evaluated by atomic force microscopy (AFM), and the nanoparticle dispersion inside the composites was investigated by transmission electron microscopy (TEM). These nanofilms, composed of a biodegradable polyester and remotely controllable by external magnetic fields, are promising candidates for many potential applications in the biomedical field.

Original languageEnglish
Pages (from-to)5589-5595
Number of pages7
JournalLangmuir
Volume27
Issue number9
DOIs
Publication statusPublished - 2011 May 3

Fingerprint

lactic acid
Lactic acid
Lactic Acid
Nanoparticles
nanoparticles
preparation
Polyesters
Nanocomposite films
SQUIDs
polyesters
Spin coating
Polyelectrolytes
Iron oxides
iron oxides
Surface morphology
Hysteresis
coating
Atomic force microscopy
Nanostructures
Magnetization

ASJC Scopus subject areas

  • Electrochemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Materials Science(all)
  • Spectroscopy

Cite this

Taccola, S., Desii, A., Pensabene, V., Fujie, T., Saito, A., Takeoka, S., ... Mattoli, V. (2011). Free-standing poly(l-lactic acid) nanofilms loaded with superparamagnetic nanoparticles. Langmuir, 27(9), 5589-5595. https://doi.org/10.1021/la2004134

Free-standing poly(l-lactic acid) nanofilms loaded with superparamagnetic nanoparticles. / Taccola, Silvia; Desii, Andrea; Pensabene, Virginia; Fujie, Toshinori; Saito, Akihiro; Takeoka, Shinji; Dario, Paolo; Menciassi, Arianna; Mattoli, Virgilio.

In: Langmuir, Vol. 27, No. 9, 03.05.2011, p. 5589-5595.

Research output: Contribution to journalArticle

Taccola, S, Desii, A, Pensabene, V, Fujie, T, Saito, A, Takeoka, S, Dario, P, Menciassi, A & Mattoli, V 2011, 'Free-standing poly(l-lactic acid) nanofilms loaded with superparamagnetic nanoparticles', Langmuir, vol. 27, no. 9, pp. 5589-5595. https://doi.org/10.1021/la2004134
Taccola, Silvia ; Desii, Andrea ; Pensabene, Virginia ; Fujie, Toshinori ; Saito, Akihiro ; Takeoka, Shinji ; Dario, Paolo ; Menciassi, Arianna ; Mattoli, Virgilio. / Free-standing poly(l-lactic acid) nanofilms loaded with superparamagnetic nanoparticles. In: Langmuir. 2011 ; Vol. 27, No. 9. pp. 5589-5595.
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