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. Author manuscript; available in PMC: 2020 Sep 3.
Published in final edited form as: ACS Appl Mater Interfaces. 2018 Oct 4;10(41):34954–34964. doi: 10.1021/acsami.8b12355

Figure 5.

Figure 5.

Confocal microscopy images of HeLa cells after 4 h incubation with PBS (a), the NOTA–FI–PEG–PEI–Ac–Mn3O4 NPs at the Mn concentration of 5 μg/mL (b), the NOTA–FA–FI–PEG–PEI–Ac–Mn3O4 NPs at the Mn concentration of 5 μg/mL (c), the NOTA–FI–PEG–PEI–Ac–Mn3O4 NPs at the Mn concentration of 10 μg/mL (d), and the NOTA–FA–FI–PEG–PEI–Ac–Mn3O4 NPs at the Mn concentration of 10 μg/mL (e).