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. 2016 Jul 29;6:30782. doi: 10.1038/srep30782

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Copyright © 2016, The Author(s)

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The cellular uptake of CS-UA-NPs (A) and FA-CS-UA-NPs (B–D) by MCF-7 cells and Colo205 cells in the presence and absence 0.1 mM of folate pretreatment for 30 min (C,D), respectively. The resulting MFI of RhB loaded in NPs was indicator of the uptake of NPs. ^*p < 0.05 for comparisons between test and control groups in all sub-figures; in Fig. 2C, p < 0.05 is also seen for comparisons between FA + FA-CS-UA-NPs and FA-CS-UA-NPs groups.