… and challenges relating to PEI-based drug delivery systems. … The PEI-grafted chitosan
significantly reduced the toxicity of … , intracellular gene delivery was also interrupted by longer PEG …

… on tumour-targeted drug delivery using folate-chitosan nanoparticles (FA-CS NPs) for … than
the 25 kDa PEI and CHI-g-PEI. FA-PEG CHI-g-PEI displayed enhanced transfection efficiency …

… PEI as an appropriate vector for the effective gene delivery. … (PEG) shielding strategy
for gene delivery system in cancer … of PEI-coated with chitosan and modified with arginine …

… Di-block copolymers such as PEO-PMAA (Polyethylene oxide with Polymethyl methacrylate),
PAA-chitosan (Polyacrylic acid with chitosan), and PEG-PLGA (polyethylene glycol with …

… (PEG) [65] were used for the modification of chitosan. Chitosan was grafted with PEG, CH-g-PEI,
for the delivery … PEI-g-chitosan, a novel gene delivery system with transfection efficiency …

… gene therapy is the successful delivery of the genes. Immunogenicity and toxicity are major
issues for viral gene delivery … like chitosan could be used as a nonviral gene delivery vector …

… in gene transfer, and the transfection efficacy of 25 kDa PEI … adsorption of DNA/RNA to
IONPs (iron oxide NPs) [28]. 4.1. … polymer PEG-b-PLGA, lipid-based NPs, chitosan, and PEI or …

… chitosan-graft-polyethyleneimine (RCP) gene vectors were prepared, through grafting the
branched PEI (lower molecular weight, 600 Da) on CS, to enhance PEI capacity for binding …

… of the effects of IONs coated with PSS and PEI on the rate of blood … into account when
developing new drug delivery platforms. … The polymer coating based on polyethylene glycol (PEG) …

… -chitosan-PEG-PEI copolymer. The catechol group, which has high affinity for iron, increases
the stability of the nanoparticle … between the polymer coating and the iron oxide core. The …