Synthesis, Structural Features, Cytotoxicity, and Magnetic Properties of Colloidal Ferrite Spinel Co_1–xNi_xFe₂O₄(0.1 ≤ x ≤ 0.9) Nanoparticles

Abstract

Colloidal ferrite spinel nanoparticles (Co x Ni 1-x Fe 2 O 4 ) were prepared by a microwave-stimulated Bradley technique under nonhydrolytic conditions. The effect of Ni 2+ doping on the structural properties was studied by powder XRD. The particle size, hydrodynamic size, and morphology were evaluated by transmission electron microscopy (TEM) and dynamic light scattering (DLS), which showed mean crystallite sizes of ca. 10 and 60 nm for powder and colloidal suspensions of Co x Ni 1-x Fe 2 O 4 , respectively. The cytotoxicity of the nanoparticles was tested against murine macrophages J774.E, osteosarcoma D17 cells, and human red blood cells (RBCs). The adsorption of bovine serum albumin (BSA) was studied, and the BSA showed a high affinity for the surface [a]

Cytotoxic Effects of Co1–xMnxFe2O4 Ferrite Nanoparticles Synthesized under Non‐Hydrolytic Conditions (Bradley's Reaction) – In Vitro

“…The chemical compositions of the Co 1– x Mn x Fe 2 O 4 nanoparticles were evaluated by using the SEM‐EDS technique, which showed good agreement between the planned and actual contents of the respective elements and their molar ratios (see Figure S1 in the Supporting Information). These results confirmed that the chosen synthetic approach allows for control of the composition with a wide range of concentration of Mn 2+ cations , …”

“…The particles are spherical in shape and show a narrow size distribution. In fact, these features are characteristic for all ferrites synthesized by Bradley's reaction , . It has to be stressed that the selected area electron diffraction (SAED) image gives additional evidence for the structural purity of the final nanomaterials.…”

Synthesis and characterization of CoxNi1‐xFe2O4 samples by solution combustion method using glycine as fuel

“…5) [24,25]. Similar trend was observed in the case of Co 1-x Ni x Fe 2 O 4 samples prepared by microwave simulated Bradley synthesis [26].…”

The Effect of Co0.2Mn0.8Fe2O4 Ferrite Nanoparticles on the C2 Canine Mastocytoma Cell Line and Adipose-Derived Mesenchymal Stromal Stem Cells (ASCs) Cultured Under a Static Magnetic Field: Possible Implications in the Treatment of Dog Mastocytoma

“…Magnetic properties of the Co 0.2 Mn 0.8 F 2 O 4 nanoparticles were studied in detail by us showing purely superparamagnetic properties 42. The exposure of C2 cells to both MF and MNPs resulted in a significant apoptotic cell death, as demonstrated by the calcein/propidium iodide staining (Fig.…”

“…The cobalt manganese ferrite nanoparticles were prepared accordingly to the previously described synthetic protocol 42. The Bradley microwave-stimulated method was used for the synthesis of Co 0.2 Mn 0.8 Fe 2 O 4 nanoparticles.…”