Research Article
Characterization of Magnetic Nanoparticles Coated with Chitosan: A Potential Approach for Enzyme Immobilization
Figure 9
Fully scanned XPS spectra of Fe3O4, Fe3O4@Chitosan, and Fe3O4@Chitosan@Proteins; XPS spectra of Fe2p (a), O1s (b), N1s (c), and C1s (d). Fe3O4 (red), Fe3O4@Chitosan (green), and Fe3O4@Chitosan@Proteins (blue).
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