This paper studies a kind of hollow nanospheres prepared by self-assembly β-cyclodextrins (β-CDs) and poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (pluronic F127) for gene delivery. It was found that this kind of hollow nanospheres enable load PEI10K/DNA and the resulting F127NH2 βCD/(PEI10K/DNA) with 0.08 µg/well DNA display equal or higher gene delivery capability compared to PEI10K/DNA with 1 µg/well DNA in the absence or presence of serum. The cytotoxicity of the nanospheres was over 100 times lower than that of PEI10K.
Keywords: cyclodextrins; dendrimer; gene delivery; self-assembly; supramolecular hollow nanospheres.
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