STUDY OF STRUCTURAL CHANGES IN BIOCOMPATIBLE FLUID BY THE ACOUSTIC SPECTROSCOPY

Magnetic fluids with nanoparticles offer some attractive applications in biomedicine. Biocompatible magnetic fluids are used for diagnostics and therapy in medical applications, in pharmacy, and biosensors. These fluids are used as a delivery system for anticancer agents in a locoregional tumor therapy-magnetic drug targeting and hyperthermia. For the study of the influence of an external magnetic field on the aggregation processes of magnetic nanoparticles in biocompatible magnetic fluids, acoustic spectroscopy was used. The jump changes of the magnetic flux density to the values 100, 200 and 300 mT at various temperatures were applied to the investigated fluid. The measured changes of the acoustic attenuation by the presence of the magnetic fields were the results of nanoparticle aggregations into new structures.