Figure 6.

Cellular uptake of uncoated MSPs in two different cancer cell lines after 4-h incubation. (a) HeLa 10 μg/ml, (b) HeLa 2 μg/ml, (c) Caco-2 10 μg/ml and (d) Caco-2 2 μg/ml; NR-MSP (green), S-MSP1 (pink) and S-MSP-2 (blue). The shaded area is the control (no particles).

Karaman et al. Nanoscale Research Letters 2012 7:358   doi:10.1186/1556-276X-7-358
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