Journal of Materials Science: Materials in Medicine (Aug 2021)

Radio frequency plasma assisted surface modification of Fe3O4 nanoparticles using polyaniline/polypyrrole for bioimaging and magnetic hyperthermia applications

  • Beena Mol,
  • Ansar Ereath Beeran,
  • Prasad S. Jayaram,
  • Prabha Prakash,
  • Ramapurath S. Jayasree,
  • Senoy Thomas,
  • Baby Chakrapani,
  • M. R. Anantharaman,
  • M. Junaid Bushiri

DOI
https://doi.org/10.1007/s10856-021-06563-1
Journal volume & issue
Vol. 32, no. 9
pp. 1 – 14

Abstract

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Abstract Surface modification of superparamagnetic Fe3O4 nanoparticles using polymers (polyaniline/polypyrrole) was done by radio frequency (r.f.) plasma polymerization technique and characterized by XRD, TEM, TG/DTA and VSM. Surface-passivated Fe3O4 nanoparticles with polymers were having spherical/rod-shaped structures with superparamagnetic properties. Broad visible photoluminescence emission bands were observed at 445 and 580 nm for polyaniline-coated Fe3O4 and at 488 nm for polypyrrole-coated Fe3O4. These samples exhibit good fluorescence emissions with L929 cellular assay and were non-toxic. Magnetic hyperthermia response of Fe3O4 and polymer (polyaniline/polypyrrole)-coated Fe3O4 was evaluated and all the samples exhibit hyperthermia activity in the range of 42–45 °C. Specific loss power (SLP) values of polyaniline and polypyrrole-coated Fe3O4 nanoparticles (5 and 10 mg/ml) exhibit a controlled heat generation with an increase in the magnetic field.