Fig. 2From: Comparison Between Folic Acid and gH625 Peptide-Based Functionalization of Fe3O4 Magnetic Nanoparticles for Enhanced Cell InternalizationTypical XRD and XPS spectra of MNPs. XRD pattern of a) bare MNPs and high-resolution Fe 2p3/2 XPS spectral regions of b) bare MNPs and c) NH2@MNPsBack to article page