Electrochemical Synthesis of Magnetite Nanoparticles and their Doping with Cu2+ Cations and Surface Coating with Polyethylenimine

In this paper, an electrochemical method was developed for fabrication of copper ions doped iron oxide particles and their surface coating with a bio-compatible layer. Using this method, polyethylenimine-coated Cu2+ doped super-paramagnetic magnetite nanoparticles were prepared on the cathode surface through base electro-generation strategy. The prepared PEI/Cu-IOs powder was analyzed by XRD, FE-SEM, EDS and VSM technique. The crystalline magnetite phase of the prepared PEI/Cu-IOs powder was verified by XRD data. FE-SEM observations and EDS data reveled the particle morphology and presence of Cu2+ ions content in the prepared sample, respectively. The FT-IR analysis proved the PEI layer on the surface of the fabricated Cu-IOs nanoparticles. The super-paramagnetic performance of the prepared powder was concluded through the measured negligible remanence (i.e. Mr=0.36 emu/g) and low intrinsic coercivity (i.e. Hci=8.54G). These results certificated the eligibility of prepared nanoparticles for various biomedical applications.