The phase composition and crystal structure of bare nanoparticles and mean size of crystallites were studied by powder X‐ray diffraction with CuKα radiation. Bruker
D8 diffractometer was employed and the diffraction pattern was analyzed by Rietveld method in the FullProf program. The mean size of crystallites was determined based on the analysis of peak broadening, for which the Thompson‐Cox‐Hastings pseudo‐Voigt profile was applied to separate the size and strain contribution. The instrumental contribution to the broadening was determined on a strain‐free tungsten powder with crystallite size of 9.4 μm.
The accurate ratio of metals in the bare sample was determined by X‐ray fluorescence spectroscopy on an Axios spectrometer.
Magnetic properties were measured by SQUID magnetometry in DC fields by using a Quantum Design
MPMS XL system. The ZFC/FC studies were carried out in magnetic field of 1.6 kA/m.
The morphology and size of nanoparticles were analyzed by transmission electron microscopy on a Philips
CM 120 system.
The colloidal stability of silica‐coated particles in aqueous suspension and their hydrodynamic size were probed by dynamic light scattering (DLS) on a Malvern
Zetasizer Nano S. In addition, the zeta potential of the particles was measured on the same instrumentation by the laser Doppler electrophoresis.
Herynek V., Turnovcová K., Gálisová A., Kaman O., Mareková D., Koktan J., Vosmanská M., Kosinová L, & Jendelová P. (2019). Manganese‐Zinc Ferrites: Safe and Efficient Nanolabels for Cell Imaging and Tracking In Vivo. ChemistryOpen, 8(2), 155-165.