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. Author manuscript; available in PMC: 2014 Nov 14.
Published in final edited form as: Angew Chem Int Ed Engl. 2013 Jul 5;52(35):9182–9186. doi: 10.1002/anie.201302820

Figure 3.

Figure 3

Polypeptides display diminished membrane activity and cytotoxicity upon UV treatment. (A) Uptake of FITC-Tris in HeLa and COS-7 cells in the presence of P20 and UV-treated P20 (n=3). (B) Cytotoxicity of polypeptide/DNA complexes in HeLa cells (N/P ratio of 20, 5 μg DNA/mL) with/without in situ UV treatment (20 mW/cm2, 5 min) as assessed by the MTT assay (n=3); ns denotes no significant difference (p>0.05).