Green Synthesis of Co-Zn Spinel Ferrite Nanoparticles: Magnetic and Intrinsic Antimicrobial Properties.
Alexander S OmelyanchikKateryna LevadaStanislav PshenichnikovMaryam AbdolrahimMiran BaricicAnastasiya KapitunovaAlima GalievaStanislav SukhikhLidiia AstakhovaSergey AntipovBruno FabianoDavide PeddisValeria V RodionovaPublished in: Materials (Basel, Switzerland) (2020)
Spinel ferrite magnetic nanoparticles have attracted considerable attention because of their high and flexible magnetic properties and biocompatibility. In this work, a set of magnetic nanoparticles of cobalt ferrite doped with zinc was synthesized via the eco-friendly sol-gel auto-combustion method. Obtained particles displayed a room-temperature ferromagnetic behavior with tuned by chemical composition values of saturation magnetization and coercivity. The maximal values of saturation magnetization ~74 Am2/kg were found in cobalt ferrite nanoparticles with a 15-35% molar fraction of cobalt replaced by zinc ions. At the same time, the coercivity exhibited a gradually diminishing trend from ~140 to ~5 mT whereas the concentration of zinc was increased from 0 to 100%. Consequently, nanoparticles produced by the proposed method possess highly adjustable magnetic properties to satisfy the requirement of a wide range of possible applications. Further prepared nanoparticles were tested with bacterial culture to display the influence of chemical composition and magnetic structure on nanoparticles-bacterial cell interaction.
Keyphrases
- magnetic nanoparticles
- room temperature
- molecularly imprinted
- quantum dots
- staphylococcus aureus
- oxide nanoparticles
- walled carbon nanotubes
- single cell
- metal organic framework
- reduced graphene oxide
- stem cells
- ionic liquid
- heart rate
- blood pressure
- heavy metals
- body composition
- resistance training
- high resolution
- sewage sludge