Figure 7 .
Cellular uptake efficiency. Cellular uptake of coated vs uncoated (nc) rods vs spheres in HeLa ((a) 10 μg/ml and (b) 2 μg/ml) vs Caco-2 ((c) 10 μg/ml and (d) 2 μg/ml) cell lines after 4 h incubation, as measured by FACS. Error bars represent SD (n ≥ 4). The pink dotted line distinguishes the rods from the spheres.
Karaman et al. Nanoscale Research Letters 2012 7:358 doi:10.1186/1556-276X-7-358