Physical and technological principles of creating biocompatible superparamagnetic particles
Levitin, Y.; Koval, A.; Vedernikova, I.; Ol'khovik, L.; Tkachenko, M.
Acta Poloniae Pharmaceutica 68(4): 549-553
2011
ISSN/ISBN: 0001-6837 PMID: 21796937 Document Number: 650120
Nanodisperse powder of zinc-substituted magnetite has been developed. Functional characteristics (biocompatibility, dispersion, magnetic state) allow to recommend it for approbation in medical and biologic technologies. The character of the temperature dependences of magnetization investigated in the magnetic fields lower than the anisotropy field indicates that transfer from the magnetically stable state into the superparamagnetic state was realized for particles of 3-13 nm in the temperature range of 4.2-150 K. It reflects specificity of small particles magnetism.