Research Article

Preparation and Characterization of Novel PBAE/PLGA Polymer Blend Microparticles for DNA Vaccine Delivery

Table 1

Characterization of microparticles with respect to mean diameter, zeta potential, mean loading, and encapsulation efficiency.

Formulation Mean diameter (nm)Zeta potential (mV)Mean loading (µg/mg)Encapsulation efficiency (%)

PLGA : A1(50 : 50)1034 ± 22.4−18.1 ± 1.67 1.98 ± 0.1219.88 ± 1.2
PLGA : A1(75 : 25)997 ± 12.5−23.2 ± 1.51.49 ± 0.1514.96 ± 1.55
PLGA : A1(85 : 15)1882 ± 23.7−17.5 ± 2.41.32 ± 0.0713.29 ± 0.72
PLGA : A2(50 : 50)821.2 ± 11.5−15 ± 2.831.42 ± 0.0914.28 ± 0.95
PLGA : A2(75 : 25)1121 ± 20.1−23.1 ± 1.091.14 ± 0.1411.44 ± 1.48
PLGA : A2(85 : 15)797.1 ± 9.88−36.3 ± 2.470.98 ± 0.189.88 ± 1.8
PLGA alone (100 : 0)612.9 ± 6.39−38.1 ± 1.960.33 ± 0.043.325 ± 0.43

All the values are represented mean values of three independent experiments.