Studies on polyethylene glycol coating on NiFe2O4 nanoparticles for biomedical applications

The NiFe2O4 nanoparticles were prepared by the combustion method and these nanoparticles were successfully coated with polyethylene glycol (PEG) for the possible biomedical applications such as magnetic resonance imaging, drug delivery, tissue repair, magnetic fluid hyperthermia etc. The structural and magnetic characterizations of NiFe2O4 nanoparticles were carried out by x-ray diffraction and vibrating sample magnetometry techniques, respectively. The morphology of the uncoated and coated nanoparticles was studied by scanning electron microscopy. The existence of PEG layer on NiFe2O4 nanoparticles was confirmed by fourier transform infrared spectroscopy technique. ▸ Synthesis of nanocrystalline NiFe2O4 by the combustion method. ▸ Magnetic properties of the NiFe2O4 nanoparticles at room temperature. ▸ Coating of NiFe2O4 nanoparticles by Polyethylene glycol (PEG).