Fig. 5From: Comparison Between Folic Acid and gH625 Peptide-Based Functionalization of Fe3O4 Magnetic Nanoparticles for Enhanced Cell InternalizationUV/Vis characterization of functionalized MNPs. UV/Vis spectra of a 5 μM FA-NHS solution and of NH2@MNPs, and PEG,FA@MNPs colloidal dispersions. Note that the high background observed in the spectra of NH2@MNPs and PEG,FA@MNPs is due to the scattering of the nanoparticle colloidal dispersionBack to article page