Bifunctional luminescent-magnetic composite particles synthesis

A novel synthesis method of luminescent-magnetic composite structures containing carbon nanomaterial and magnetite nanoparticles is reported. Successive steps including magnetite nanopaticle synthesis, their protection with silica shell, and freezing-induced loading into CaCO3 microparticle pores with pre-loaded dextransulfate, thermal treatment, and matrix dissolving are described. Obtained composite structures are characterized with fluorimetry, dynamic light scattering, transmission electron microscopy, and confocal laser scanning microscopy. The movement of obtained structures in non-uniform magnetic field is studied. Both luminescent and magnetic properties of bifunctional nanostructures are demonstrated.

Automated summary

This paper presents a novel synthesis method for luminescent-magnetic composite structures containing carbon nanomaterial and magnetite nanoparticles. The process involves steps such as magnetite nanoparticle synthesis, silica shell protection, freezing-induced loading into CaCO3 microparticle pores with pre-loaded dextransulfate, thermal treatment, and matrix dissolving. The obtained composite structures are characterized using various techniques and their movement in a non-uniform magnetic field is studied. The bifunctional nanostructures demonstrate both luminescent and magnetic properties.