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The effect of size and surface of iron-based nanoparticles on the cell uptake ability in macrophages. TEM images (A) and characteristics (B) of different IONPs. (C) Iron uptake in RAW264.7 cells measured by ICP-MS after co-culturing with different concentrations of IONPs for 1h or with the same concentration (100 μg/mL) for different incubation times. Reproduced with permission [87]. Copyright 2018, Springer Nature.
