The invention belongs to the field of biomedical materials and bioengineering films, and particularly relates to a cross-magnetic
dielectric effect material and a preparation method thereof, specifically, magnetic
metal particles
cobalt (Co) and
dielectric ceramic (MgF2) are used as raw materials, and the cross-magnetic
dielectric effect material is prepared on the surface of
titanium through a multi-source
sputtering deposition technology. The magnetic nano-particle multi-phase film with the TMD effect is prepared from the magnetic
metal with
high saturation magnetization and the dielectric
ceramic with high dielectric constant. The
titanium sheet with the TMD effect is co-cultured with mouse
embryo osteoblast precursor cells (MC3T3-E1) and human gingival fibroblasts (HGF-1) to find that the TMD effect of the
titanium sheet has good
biological safety, and on the basis, preparation parameters of the multiphase membrane are optimized, so that the polarization of macrophages is regulated and controlled by proper
magnetic field force generated by the TMD effect of the titanium sheet, and the macrophages with the TMD effect can be obtained. Therefore, osteogenic differentiation of
bone marrow mesenchymal stem cells is promoted,
titanium surface osseointegration is improved, and the method is expected to serve as a new direction for preparing a
surface coating for promoting
implant osseointegration.