Fig. 4
Cellular uptake of the nanoprobes. (A) TEM image of NK-92 cells after 24 h of incubation with the Fe3O4-PEG-CD56/Avastin@Ce6 nanoprobes. (B) FCM analysis of uptake Fe3O4-PEG-Avastin@Ce6 probes for NK-92 cells. (C) FCM analysis of uptake Fe3O4-PEG-CD56/Avastin@Ce6 probes for NK-92 cells. (D) Quantitative analysis of FCM for NK-92 cells after different treatments. (E) CLSM observation of cellular uptake of nanoprobes by NK-92 cells after treatments and lysosomal staining (scale bar = 20 μm)