Figure 7From: Validation of a Janus role of methotrexate-based PEGylated chitosan nanoparticles in vitroCellular uptake of FITC-PEG-CS-NPs, FITC-(FA + PEG)-CS-NPs, and FITC-(MTX + PEG)-CS-NPs (equivalent FITC concentration) on HeLa cells by flow cytometry (mean ± SD, n = 3). Statistical significance: *P <0.05.Back to article page