Fig. 2

Cellular uptake based on Cy5@AELN. (A) Fluorescence images (scale bar = 50 μm) illustrating the uptake by HUVEC cells treated with different preparations. (B, E) Flow cytometry quantification of plasmid, Cy5@ELN, and Cy5@AELN uptake (n = 3) by HEK293T, A-RPE, and HUVEC cells. (C, F) Uptake of different concentrations of AELN by HUVEC cells (n = 3). (D, G) Uptake dependence on time (n = 3)