Figure 10From: Carboxymethyl chitosan-folic acid-conjugated Fe3O4@SiO2 as a safe and targeting antitumor nanovehicle in vitroBio-TEM images of HeLa cells after 24 h of exposure to NPs (100 μg mL-1). (a) Control, (b) Fe3O4@SiO2-OCMCS-FA nanovehicle (inset: magnified image of the circled area) and (c, d) magnified image of Fe3O4@SiO2-OCMCS-FA nanovehicle.Back to article page