Laser target evaporation Fe2O3 nanoparticles for water-based ferrofluids for biomedical applications

Julia P. Novoselova, Alexander P. Safronov, Oleg M. Samatov, Igor V. Beketov, Hafsa Khurshid, Zohreh Nemati, Hariharan Srikanth, Tatyana P. Denisova, Ricardo Andrade, Galina V. Kurlyandskaya

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Maghemite spherical magnetic nanoparticles (MNPs) were prepared by laser target evaporation. X-ray diffraction, transmission electron microscopy, specific surface area, and dynamic light scattering studies were performed. For water-based suspensions prepared on the basis of obtained MNPs, the zeta potential was measured. Magnetic and microwave measurements were performed both for MNPs and ferrofluids. To estimate the inductive magnetic heating of electrostatically self-stabilized or electrostatically stabilized by adsorbed citrate ions ferrofluids, magneto-inductive heating experiments were performed that showed heating efficiency. For the study of cytotoxicity and maghemite MNPs accumulation process, two non-pathogenic Exophiala nigrum (black) and its mutant strain (red) yeasts were studied. In both cases, no significant alterations of cell morphology were observed.

Original languageEnglish (US)
Article number6971372
JournalIEEE Transactions on Magnetics
Issue number11
StatePublished - Nov 1 2014

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