Micellar nanoparticles or {HEAD ~ polymeric micelles} or vesicles composed of {TAIL ~ amphiphilic block copolymers} (Rijcken et al.,  
composed of
Micellar nanoparticles or { HEAD ~ polymeric micelles } or vesicles composed of { TAIL ~ amphiphilic block copolymers } ( Rijcken et al . ,
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH