Table 2.

Sizes and zeta potentials of the pDNA complexes prepared in this study.

	Sizes and PDI a), nm			Zeta potential and deviation, mV
	ML-F3	ML-Lyp1	ML	ML-F3	ML-Lyp1	ML
	2714	599.3	511.9	−27.4	−36.0	−38.3
N/P 0.1	(0.612)	(0.856)	(0.755)	(6.67)	(3.36)	(5.37)
	310.0	537.6	206.1	−23.0	−33.4	−21.3
N/P 1	(0.659)	(0.582)	(0.354)	(3.25)	(10.1)	(8.45)
	237.3	266.9	136.0	−22.5	−32.3	−9.36
N/P 2	(0.412)	(0.475)	(0.452)	(3.22)	(5.44)	(2.65)
	220.2	251.2	128.5	−8.49	−32.9	−2.04
N/P 5	(0.200)	(0.429)	(0.641)	(2.92)	(8.66)	(3.49)
	213	274.1	124.0	0.298	−28.2	−1.41
N/P 10	(0.744)	(0.981)	(0.841)	(3.89)	(9.56)	(6.29)
Silk polymer only	78.8	198.3	197.0	0.902	−38.5	0.637
without pDNA	(0.521)	(0.517)	(0.451)	(3.22)	(7.98)	(3.85)

^a)polydispersity index.