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. Author manuscript; available in PMC: 2013 Nov 5.
Published in final edited form as: Small. 2012 Jul 6;8(18):10.1002/smll.201200437. doi: 10.1002/smll.201200437

Figure 4.

Figure 4

Uptake of DEX-P by A549 lung cancer cells after 1 h and 4 h incubation. [3H]-DEX-P was used to quantify the mass of DEX-P in the cells. Cell protein concentration was determined by the BCA assay.