| abstract |
The vesicles are prepared from a lipid phase containing a mixture of nonionic amphiphilic lipids consisting of a mixture of esters of at least one polyol chosen from the group formed by sorbitan, the sorbitan carrying 2 to 60 d units. 'ethylene oxide, glycerol bearing 2 to 30 ethylene oxide units, polyglycerols comprising 2 to 15 glycerol units, sucroses, glucoses bearing 2 to 30 ethylene oxide units, and at least a fatty acid comprising a C5 -C17 alkyl chain, saturated or unsaturated, linear or branched, the number of alkyl chains per polyol group being between 1 and 10, stabilized by amphiphilic lipid (s) ionic (s) chosen from the group formed by those giving the dispersion a pH of between 5.5 and 7.5. |