Аннотация:The paper presents preparation and characterization of starch-modified Fe3O4 nanoparticles
(NPs) in aqueous dispersion after impregnation into healthy and damaged types of cartilage. We show that starch-modified dispersion has a narrower size distribution than a non -stabilized one. The average hydrodynamic radius of magnetite NPs in a dispersion used
for impregnation into cartilage is (48 ± 1) nm with the width of the distribution from 5 to 200 nm. We investigate stability of aqueous magnetite NPs dispersions during storage and with increase in temperature (up to 70 C). We find that polydisperse magnetite NPs can penetrate into cartilage and the size and concentration of impregnated particles depend on the organization of the tissue structure. The results confirm the possibility of application of magnetite NPs in diagnostics and laser treatment of degenerative cartilage
deceases.
Keywords Magnetite Biocompatible
nanoparticles Cartilage degradation
Polysaccharides Nanomedicine