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. Author manuscript; available in PMC: 2016 Jan 21.
Published in final edited form as: Small. 2014 Sep 5;11(3):319–328. doi: 10.1002/smll.201400765

Figure 4.

Figure 4

Cells (green) are treated with acridine orange to detect acidic organelles (orange). Once exposed to Bafilomycin (Baf), the organelles are no longer acidic and no orange fluorescence is seen. Hoechst-loaded NV-MSNs show nuclear staining of cells (blue) but after Baf treatment, the NVs are not activated and no staining is seen.