Drug delivery agents consisting of compounds that facilitate delivery of a wide range of pharmaceuticals; Drug delivery agents in the form of a coating for therapeutic miRNA, siRNA, mRNA, antisense oligonucleotides or DNA that facilitate the delivery of a wide range of pharmaceuticals; Drug delivery agents in the form of copolymeric nanoparticles complexed with miRNA, siRNA, mRNA, antisense oligonucleotides or DNA that facilitate the delivery of pharmaceutical preparations