Preparation and Characterization of Magnetic Fe_3O_4-PAMAM-antibody Complex and Its Application in the Removal of Tetracycline from Wastewater

Antigens and antibodies can bind specifically, so antibiotic antibody shows potential biological and environmental applications on the removal of antibiotic. In the present study, novel antibody complex was synthesized from polyamide-amine dendrimer immobilized tetracycline(TC) antibody with the encapsulation of magnetic Fe_3O_4 nanoparticles. As-prepared magnetic Fe_3O_4-PAMAM-antibody complexes were characterized by different techniques such as Fourier transform infrared(FT-IR), X-ray diffraction(XRD), Nuclear magnetic resonance(NMR)and ultraviolet(UV) analysis spectra. The prepared antibody complexes exhibited high adsorption properties for TC from aqueous solutions. These results suggest that the antibody complex expects to be a potential candidate for the wastewater treatment.