Fig. 2. (A) Cytotoxicity profiles of FITC-labeled polymeric conjugates and free FITC across three concentrations; (B) quantitative analysis of cellular uptake for FITC-conjugated polymers and free FITC at 1, 10, and 100 μg mL−1 eq. FITC; and (C) fluorescence microscopy visualization of polymer-FITC and free FITC internalization.
