Table 2.

Physico-chemical characterization of 5-NPPP-Eudragit RSPO polymeric nanoparticles.

5-NPPP:Eudragit RSPO ratio	Size (nm)	PDI	Zeta Potential (mV)	Entrapment Efficiency (%)
1:0.5	269	0.279	+ 6.47	65.20 ± 2.55
1:1	281.7	0.239	+ 8.39	90.03 ± 0.50
1:2	234.8	0.229	+ 6.99	85.5 ± 4.80
1:1 (after 6 months storage at 30 °C/65%RH	295	0.230	+ 7.57	89.5 ± 0.50