Research Article

Formulation Strategies, Characterization, and In Vitro Evaluation of Lecithin-Based Nanoparticles for siRNA Delivery

Table 1

Particle size and zeta potential of the siRNA-loaded lecithin nanoparticles, reported as mean ± SD ( 𝑛 = 4 ).

FormulationN/P ratioParticle size (d.nm) ± SDPdIZ-pot (mV) ± SD

pH 5.08000364,9 ± 35,40,452−35,5 ± 2,7
4000384,5 ± 51,50,280−54,4 ± 5,2
2000303,2 ± 1,40,185−59,1 ± 3,1
1000252,5 ± 19,80,263−59,7 ± 2,2
100196,9 ± 14,10,398 *

pH 7.08000371,5 ± 36,30,463−41,3 ± 1,9
4000375,5 ± 27,10,484−58,4 ± 3,4
2000343,4 ± 25,70,470−61,4 ± 2,6
1000328,2 ± 61,90,448−63,1 ± 3,0
100271,5 ± 28,20,463 *

*Unable to determine, low signal-to-noise ratio.