Table 1.

Particle size and zeta potential of different vectors

Characteristics/samples	Mean particle size (nm)	Polydispersity index	Zeta potential (mV)
SLN	87.5 ± 5.2	0.11 ± 0.02	+45.2 ± 1.5
MN-SLN	153.1 ± 4.3	0.20 ± 0.02	+28.5 ± 2.3
SLN/DNA	121.8 ± 5.8	0.15 ± 0.03	+33.1 ± 2.4
Pre-MN-PEG-PE-modified SLN/DNA	223.6 ± 5.3	0.22 ± 0.05	+20.4 ± 2.1
Post-MN-PEG-PE-modified SLN/DNA	185.2 ± 4.1	0.11 ± 0.04	+21.3 ± 1.7

Abbreviations: SLN, solid lipid nanoparticles; MN, mannan; PEG, polyethylene glycol; PE, L-α-phosphatidylethanolamine.