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Fabrication of polystyrene-encapsulated magnetic iron oxide nanoparticles via batch and microfluidic-assisted production

Authors
  • Taddei, Chiara1, 2
  • Sansone, Lucia3
  • Ausanio, Giovanni4
  • Iannotti, Vincenzo4
  • Pepe, Giovanni Piero4
  • Giordano, Michele3
  • Serra, Christophe A.2
  • 1 University of Naples “Federico II”, Department of Chemical Materials and Production Engineering, Piazzale V. Tecchio, 80, Napoli, 80125, Italy , Napoli (Italy)
  • 2 Université de Strasbourg, CNRS, ICS UPR 22, Strasbourg, F-67000, France , Strasbourg (France)
  • 3 National Research Council of Italy, Institute for Polymers, Composites and Biomaterials, Portici, 80055, Italy , Portici (Italy)
  • 4 University of Naples “Federico II”, CNR-SPIN and Department of Physics “E. Pancini”, Piazzale V. Tecchio 80, Napoli, 80125, Italy , Napoli (Italy)
Type
Published Article
Journal
Colloid & Polymer Science
Publisher
Springer-Verlag
Publication Date
May 01, 2019
Volume
297
Issue
6
Pages
861–870
Identifiers
DOI: 10.1007/s00396-019-04496-4
Source
Springer Nature
Keywords
License
Yellow

Abstract

The magnetic properties of nanoparticles make them ideal for use in various applications, especially in biomedical applications. Herein, we describe the fabrication of iron oxide nanoparticles encapsulated in polystyrene (PS) using two methods: a conventional batch and microfluidic synthesis. In particular, we present a simple synthesis method of magnetic composite nanoparticles, based on the use of a microfluidic elongational flow method in a continuous-flow apparatus where magnetite particles are embedded in a polystyrene matrix. Compared to conventional batch synthesis, microfluidics-based synthesis enables precise reaction control, enhanced mixing and rapid chemical reactions, allowing flow synthesis of particles in a controllable, sustainable, and cost-saving manner that is attractive to industry. The composite particles show a high encapsulation of magnetite nanoparticles, but with an inhomogeneous size distribution; instead, the sample obtained with microfluidic approach shows a homogenous composite particle size distribution although the magnetite content is lower compared to the miniemulsion batch methods. Graphical Abstract

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