Linear polyethyleneimine grafted to a hyperbranched poly(ethylene glycol)-like core: a copolymer for gene delivery.
Banerjee P, Weissleder R, Bogdanov A. Linear polyethyleneimine grafted to a hyperbranched poly(ethylene glycol)-like core: a copolymer for gene delivery. Bioconjug Chem. 2006 Jan-Feb; 17(1):125-31.