Table 1.

The Size, ζ-potential of G4-OH, amine modified G4-OH, G3.5-COOH, amine modified G3.5-COOH. The size and ζ-potential were obtained from dynamic light scattering.

Dendrimer	Size (Mean ± SEM) (nm)	ζ-potential ± SEM (mV)
G4-OH	4.3 ± 0.2	+4.5 ± 0.1
G4-OH–(NH2)4	4.7 ± 0.3	+6.6 ± 0.2
G3.5-COOH	3.2 ± 0.4	−28.6 ± 0.7
G3.5-COOH–(NH2)4	3.8 ± 0.2	−21.8 ± 0.6