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(a) macroscopic aspect of plain liposomes constituted by phosphatidyl choline/cholesterol (LP-P), dicetyl phosphate (LP-DCP), didecyldimethylammonium chloride (LP-DDAC), di isobutyl phenoxy ethyl dimethyl benzyl ammonium chloride (LP-DEBDA) and stearylamine (LP-SA) and representative electron microphotographs of (b) plain (LP-P), (c) anionic (LP-DCP) and (d) cationic (LP-DDAC) liposomes.
