<span style="font-size:11.0pt;font-family: "Times New Roman";mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Mangal;color:black;mso-ansi-language:EN-GB;mso-fareast-language:EN-US; mso-bidi-language:HI" lang="EN-GB">Synthesis and characterization of functional superparamagnetic nanocomposites containing γ-Fe₂O₃, dexamethasone sodium phosphate and polyaniline</span>

Abstract

Superparamagnetic nanomaterials are showing great prospects in medical treatment with targeted medicine. A conceptually new method has been developed for the synthesis of a superparamagnetic nanocomposite, γ-Fe₂O₃/PANI-DSP (γ-Fe₂O₃/PANI doped with dexamethasone sodium phosphate). The properties of γ-Fe₂O₃/PANI-DSP are tested using FTIR, UV-vis, energy dispersive X-ray, vibrating sample magnetometer, transmission electron microscopy and cyclic voltammetry. The results show that the electric conductivity of γ-Fe₂O₃/PANI-DSP is as high as 0.11 S cm^-1, while the saturated magnetizations of γ-Fe₂O₃/PANI-DSP (11.3 emu g^-1) decreases in comparison with γ-Fe₂O₃/PANI (29.1 emu g^-1). The morphology of γ-Fe₂O₃/PANI-DSP appears as spherical particles with a diameter of approximately 50 nm, which indicates that γ-Fe₂O₃/PANI-DSP would be highly favored in the chemotherapy of a variety of cancers.