Table 1.

Particle size, polydispersity index (PDI), and ζ-potential of PLGA micro- and nanoparticles.

Vaccine compound	Size (nm ± SD)	PDI ± SD	ζ potential (mV ± SD)
MP-OVA/polyI:C	1377 ± 62.07	0.256 ± 0.102	−47.3 ± 1.02
MP-OVA/Riboxxim	1437 ± 162.9	0.396 ± 0.129	−51.0 ± 2.85
MP Empty	1436 ± 235.2	0.385 ± 0.172	−56.0 ± 0.608
NP OVA/Riboxxim	240.4 ± 24.56	0.407 ± 0.128	−30.2 ± 0.692

Results are expressed as means ± SD. For each compound, at least three independent batches were prepared. Measurement was performed in triplicates (n = 3).

MP microparticles, NP nanoparticles, SD standard deviation, PDI polydispersity index.