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. Author manuscript; available in PMC: 2009 Feb 17.
Published in final edited form as: ACS Nano. 2008 Nov 25;2(11):2213–2218. doi: 10.1021/nn800507t

Figure 4.

Figure 4

Enhanced transfection using NP–LysG1 and NP–Lys relative to positive controls, NP–TMA, and polylysine (pLys). No appreciable enzyme activity was observed in the absence of vectors. Inset shows solution colors during β-Gal activity assay performed after transfection. The color changes from yellow (substrate) to red (product) in the presence of active enzyme.