Skip to main content
. 2020 Jun 27;10(7):1248. doi: 10.3390/nano10071248

Figure 2.

Figure 2

Size distribution and polydispersity index (PDI) of the nebulised polyethyleneimine (PEI) and Poly(ethylene glycol) (PEG)-modified 25 kDa branched polyethyleneimine (PEI-LPEG) siRNA nanoparticles at N/P = 15 following nebulisation and collection in each section of a twin-stage impinger (TSI). (* significance vs. pre-neb samples, † significance PEI vs. PEI-LPEG, 2-way ANOVA, n = 5 ± SD, † * p < 0.05, †† p < 0.01 *** p < 0.001).