Study of multivesiculated polyester particles synthesis by double emulsion process

► Multivesiculated particles were synthesized by one-step double-emulsion process. ► w/o Droplets coalesce if dispersion time is long, forming monovesiculated particles. ► Added amine stabilizes both w/o and o/w dispersions. ► Polyester and colloids affect final particle sizes and vesiculation morphology.