Fig. 7From: Preferential drug delivery to tumor cells than normal cells using a tunable niosome–chitosan double package nanodelivery system: a novel in vitro modelWheat germ agglutinin (WGA) Oregon Green 488 conjugate cell membrane staining. a, c Control samples without chitosan–paclitaxel showed WGA staining on the cell membranes only. b, d Treated samples with chitosan–paclitaxel at 0.01 µM following 15 min pulse treatment. WGA staining visible on cell membranes and on the chitosan polymer. Visible accumulation of chitosan polymer seen around OV2008 (d) while much of the chitosan was in the extracellular space around IMMC3 (b). Scale bar = 10 µmBack to article page