release of biological response modifiers. Production and
characterization of particulate delivery systems: liposomes,
microspheres for gene therapy. In particular, new formulations, have
been designed and produced for Natural and Peptide (PNA) Nucleic Acids,
based on cationic polymeric sub-micron particles constituted by
Eudragit RS 100 plus different cationic surfactants such as
dioctadecyl-dimethyl-ammonium bromide (DDAB18) and
diisobutylphenoxyethyl dimethylbenzyl ammonium chloride (DEBDA).