Table 4.

The effect of N/P ratio on particle size and zeta potential DNA/PEC complexes.

PEC micelle	N/P ratio	Particle size (nm)	Zeta potential (mV)
PEC18 micelle	nonea	280	29
	3	200	16
	6	250	18
	10	260	18
	30	330	20
PEC40 micelle	nonea	470	30
	3	210	13
	6	230	19
	10	280	18
	30	310	22
PEC55 micelle	nonea	560	29
	3	180	12
	6	240	20
	10	260	19
	30	320	23

^awithout DNA