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. 2021 Feb 12;19:44. doi: 10.1186/s12951-021-00791-x

Fig. 3.

Fig. 3

Evaluation of the cellular uptake of siRNA/peptide nanocomplexes using a fluorescence microscope. 200 nM Cy3-labeled siRNAs were delivered into 1.0 × 105 HeLa cells via PC: Lipofectamine™ 2000, SPACE, R11, S-R7, S-R11, and S-R15 (20:1 N/P ratio) for 4 h. Nucleus and actin filaments were labeled using Hoechst 33342 (blue) and Phalloidin (green), respectively. The nanocomplex was observed in orange at 200× magnification (scale bar = 100 µm)