Hybrids of Iron-Filled Multiwall Carbon Nanotubes and Anticancer Agents as Potential Magnetic Drug Delivery Systems: In Vitro Studies against Human Melanoma, Colon Carcinoma, and Colon Adenocarcinoma

Figure 2

⁵⁷Fe Mössbauer spectra of Fe@MWCNTs and Fe@O-MWCNTs at room temperature.