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

• Published in: Journal of materials science. Materials in medicine Vol. 32; no. 9; pp. 1 - 14
• Main Authors: Mol, Beena, Beeran, Ansar Ereath, Jayaram, Prasad S., Prakash, Prabha, Jayasree, Ramapurath S., Thomas, Senoy, Chakrapani, Baby, Anantharaman, M. R., Bushiri, M. Junaid
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.09.2021; Springer Nature B.V; Springer
• Subjects: Banded structure; Biomaterials; Biomedical Engineering and Bioengineering; Biomedical materials; Ceramics; Chemistry and Materials Science; Coatings; Composites; Emissions; Engineering and Nano-engineering Approaches for Medical Devices; Fever; Fluorescence; Glass; Heat generation; Hyperthermia; Iron oxides; Magnetic fields; Materials Science; Medical imaging; Nanoparticles; Natural Materials; Photoluminescence; Photons; Polyanilines; Polymer Sciences; Polymers; Polypyrroles; Radio frequency; Radio frequency plasma; Regenerative Medicine/Tissue Engineering; Surfaces and Interfaces; Thin Films
• ISSN: 0957-4530; 1573-4838
• DOI: 10.1007/s10856-021-06563-1

Surface modification of superparamagnetic Fe 3 O 4 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 Fe 3 O 4 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 Fe 3 O 4 and at 488 nm for polypyrrole-coated Fe 3 O 4 . These samples exhibit good fluorescence emissions with L929 cellular assay and were non-toxic. Magnetic hyperthermia response of Fe 3 O 4 and polymer (polyaniline/polypyrrole)-coated Fe 3 O 4 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 Fe 3 O 4 nanoparticles (5 and 10 mg/ml) exhibit a controlled heat generation with an increase in the magnetic field.