Fig. 1From: Co-delivery of Gefitinib and chloroquine by chitosan nanoparticles for overcoming the drug acquired resistanceCharacterization of Gefitinib/CQ-NPs. a TEM images of Gefitinib/CQ-NPs, b DLS analysis of Gefitinib/CQ-NPs, c zeta potential of Gefitinib/CQ-NPs, and d accumulative release of Gefitinib/CQ-NPs and free Gefitinib in the medium at different pH. The results were expressed as mean ± SD (n = 3)Back to article page