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The design and evaluation of a novel potent class of DNA delivery agents based on steroid-polyamine conjugates bearing a flexible linker are reported. The hydrophobic regions are based on steroids, i.e. chlolestane and lithocholic acid motifs. The linker, which couples a hydrophobic steroid and a hydrophilic polyamine, in this study can be regarded as a two-atom extension of the conventional carbamate...
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