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. Author manuscript; available in PMC: 2015 Dec 14.
Published in final edited form as: J Mater Chem B. 2014 Dec 14;2(46):8154–8164. doi: 10.1039/C4TB00352G

Figure 5. ζ-potential of fresh polymer-pDNA complexes measured by DLS.

Figure 5

ζ-potential was measured in 1 mM KCl pH 7.0. ζ-potential of 40L and PEI polyplexes increased with N/P ratio. ζ-potential of 40L-pDNA polyplexes approached ∼0 mV for N/P of 5 or greater while ζ-potential of PEI-pDNA polyplexes approached ∼20 mV for N/P of 20 or greater. Data are plotted as mean ± standard deviation.