Synthesis, and Characterization, and Evaluation of Cellular Effects of the FOL-PEG-g-PEI-GAL Nanoparticles as a Potential Non-Viral Vector for Gene Delivery

Table 1

The zeta potential and molecular weight of PEI, PEG-g-PEI copolymer, FOL-PEG-g-PEI copolymer, and FOL-PEG-g-PEI-GAL copolymer.

Polymer	Zeta potential of copolymer (mV)^a	Molecular weight of copolymer (KD)^b	Poly dispersity b
Polyethylenimine	+41.1±1.4	25.0	1.2
PEG-g-PEI	+32.7±3.2	26.9	1.3
FOL-PEG-g-PEI	+21.7±1.9	27.3	1.3
FOL-PEG-g-PEI-GAL	+17.8±1.5	27.6	1.3

^aDetermined by ¹H-NMR
^bDetermined by GPC.