Characterization and in vitro biocompatibility of catanionic assemblies formed with oppositely charged dicetyl amphiphiles

- Dicetyldimethylammonium bromide (DCB) and dicetyl phosphate (DCP) in water can form vesicles.
- Vesicle behaviors depend on the molar ratio of DCB/DCP.
- Surface charges of DCB/DCP vesicles dominate their cytotoxicity.
- The equalmolar DCB/DCP vesicle has good potential for drug delivery.