▎ 摘　　要

NOVELTY - Gene delivery system comprises branched polyethyleneimine and graphene oxide. USE - The delivery system is useful for gene transmission. No biological data given. ADVANTAGE - The delivery system rapidly transfers gene. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a gene delivery complex including the branched polyethyleneimine and graphene oxide, the nanostructure and DNA or RNA; and (2) a pharmaceutical composition including the gene delivery complex.