. Author manuscript; available in PMC: 2014 Jun 1.

Published in final edited form as: Eur J Pharm Biopharm. 2013 Feb 16;84(2):10.1016/j.ejpb.2013.01.019. doi: 10.1016/j.ejpb.2013.01.019

Table 1.

Physicochemical characterization of PAMAM dendrimers

Dendrimer	# Of surface groups^§	Size (diameter) in nm	Zeta potential in mV (Conductivity in mS/cm)^@
G3.5-COOH	64	3.2 ± 0	^*
G4-NH₂	64	3.4 ± 0.22	^*
G4-OH	64	2.6 ± 0	^*
G6.5-COOH	512	8.5 ± 0.61	−42.0 ± 1.2 (1.794)^⌘
G7-NH₂	512	8.1 ± 0.42	64.8 ± 3.2 (0.264)^⌘
G7-OH	512	6.4 ± 0	27.7 ± 1.1 (0.269)^⌘

^§

Provided by manufacturer

Dendrimers were below detection limit

^⌘

Zeta potential was measured in double distilled water at pH 7.4 (not buffered)

Mean conductivity values