Table 3.

The effect of chitosan concentration on the physicochemical properties of blank PCL and mePEG-PCL nanoparticles (n = 3 ± SD).

	Chitosan concentration (wt/v, %)	Particle size ± SD (nm)	PDI ± SD	Zeta potential ± SD (mV)
PCL nanoparticles	0	170 ± 0.1	0.07 ± 0.02	−20 ± 0.6
	0.01	196 ± 14	0.25 ± 0.03	39 ± 0.9
	0.025	218 ± 9	0.20 ± 0.02	54 ± 1.9
mePEG-PCL nanoparticles	0	71 ± 0.8	0.22 ± 0.004	−22 ± 1.9
	0.01	120 ± 2	0.39 ± 0.006	31 ± 1.8
	0.025	155 ± 1.6	0.42 ± 0.02	31 ± 1.3