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. Author manuscript; available in PMC: 2019 Jul 2.
Published in final edited form as: Mol Pharm. 2018 May 30;15(7):2559–2569. doi: 10.1021/acs.molpharmaceut.8b00088

Figure 3.

Figure 3.

Cellular uptake and serum stability of nanoconjugates. A. Flow cytometry histogram for cellular uptake of 8PEG-IR700 and RGD-8PEG-IR700 nanoconjugates in the absence and presence of free RGD peptide in A375 cells. B. Flow cytometry histogram for cellular uptake of 8PEG-IR700 and RGD-8PEG-IR700 nanoconjugates in SKOV3 cells. C. Flow cytometry histogram for cellular uptake of 8PEG-IR700 and RGD-8PEG-IR700 nanoconjugates in 3T3 cells. D. Cellular uptake of RGD-8PEG-IR700 after incubation in PBS or FBS. RGD-8PEG-IR700 was incubated in PBS or 20% FBS at 37 °C for a day, and then their cellular uptake in SKOV3 cells was measured using flow cytometry.