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. 2018 Jun 27;13:3713–3728. doi: 10.2147/IJN.S162939

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© 2018 Sun et al. This work is published and licensed by Dove Medical Press Limited

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Confocal images of the HeLa cells. (A) Blank control, (B) naked FAM-VEGF-siRNA, (C) DOX, (D) GPF/FAM-VEGF-siRNA, (E) GPF/DOX, (F) Lipo™2000/FAM-VEGF-siRNA, and (G) GPF/DOX/FAM-VEGF-siRNA.

Abbreviations: DOX, doxorubicin; GPF, graphene oxide-poly-l-lysine hydrobromide/folic acid; siRNA, small interfering RNA; VEGF, vascular endothelial growth factor.