Fig. 2From: Co-delivery of Gefitinib and chloroquine by chitosan nanoparticles for overcoming the drug acquired resistanceIn vitro cellular distribution of NPs after incubating different tumor cells with rhodamine B-labeled NPs. Fluorescent image of QGY (a) and QGY/Gefitinib cells (b), the scale bar is 50 μm, fluorescence spectrum analysis of QGY (c) and QGY/Gefitinib cells (d)Back to article page