Research Article

Preparation and Characterization of a Tumor-Targeting Dual-Image System Based on Iron Oxide Nanoparticles Functionalized with Folic Acid and Rhodamine

Figure 3

XRD pattern of prepared magnetite (Fe3O4) nanoparticles indicative of inverse spinel structure. Significant signals are assignable to diffraction planes (111), (220), (311), (222), (400), (422), (511), (440), and (533).