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Magnetic Copper Ferrite Nanoparticles Functionalized by Aromatic Polyamide Chains for Hyperthermia Applications.

Reza Eivazzadeh-KeihanSomayeh AsgharnaslMilad Salimi BaniFateme RadinekiyanAli MalekiMohammad MahdaviParto BabaniamansourHossein BahreinizadAhmed Esmail ShalanSenentxu Lanceros-Méndez
Published in: Langmuir : the ACS journal of surfaces and colloids (2021)
A new magnetic nanocomposite with a statistical star polymer structure was designed and synthesized. Nanocomposite fabrication is based on the polymerization of aromatic polyamide chains on the surface of functionalized magnetic copper ferrite nanoparticles (CuFe2O4 MNPs). This magnetic nanostructure was characterized by several analysis methods. All the analytical methods used, for instance, Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, thermogravimetric, vibrating-sample magnetometer, and scanning electron microscopy (SEM), confirmed the formation of polyamide chains. The obtained images from SEM imaging showed a unique nanoflower morphology which was the proper orientation results of synthesized nanoplates. Finally, the magnetic nanostructure showed a good potential for hyperthermia applications, with a maximum specific absorption rate of 7 W/g for 1 mg/mL of the sample under a magnetic field in different frequencies (100, 200, 300, and 400 MHz) and 5 to 20 min time intervals.
Keyphrases
  • molecularly imprinted
  • electron microscopy
  • solid phase extraction
  • high resolution
  • quantum dots
  • oxide nanoparticles
  • magnetic resonance imaging
  • mass spectrometry
  • risk assessment
  • photodynamic therapy
  • climate change