Aggregation Properties of Albumin in Interacting with Magnetic Fluids.

In this study, interactions of FeO magnetic nanoparticles with serum albumin biomolecules in aqueous solutions were considered. The studies were conducted with the laser correlation spectroscopy and optical analysis of dehydrated films. It was shown that the addition of magnetite to an albumin solution at low concentrations of up to 10 g/L led to the formation of aggregates with sizes of up to 300 nm in the liquid phase and an increase in the number of spiral structures in the dehydrated films, which indicated an increase in their stability.

Magnetic Properties of Bacterial Magnetosomes Produced by SO-1.

In this study, the magnetic properties of magnetosomes isolated from lyophilized magnetotactic bacteria SO-1 were assessed for the first time. The shape and size of magnetosomes and cell fragments were studied by electron microscopy and dynamic light scattering techniques. Phase and elemental composition were analyzed by X-ray and electron diffraction and Raman spectroscopy.