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Figure 1 | Journal of Nanobiotechnology

Figure 1

From: Quantification of the internalization patterns of superparamagnetic iron oxide nanoparticles with opposite charge

Figure 1

Cellular uptake kinetics of nanoparticle formulations (a) γ-Fe 2 O 3 -PEI-FITC and (b) γ-Fe 2 O 3 -PMA-Dy636. Cells were incubated with distinct amounts of the respective particle systems (1 μg/ml [Fe]) for time periods of 0 min (black line), 15 min (blue line), 60 min (green line), 4 h (red line), and 24 h (purple line). Fluorescence intensities were recorded by means of flow cytometry for a total of 10,000 events on channels FITC (excitation 488 nm) and APC-A (630 nm).

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