destroying {HEAD ~ the micells} to recover a polymer nano particle with {TAIL ~ a mean particle diameter} between 1 and 50 nm; and 
destroying { HEAD ~ the micells } to recover a polymer nano particle with { TAIL ~ a mean particle diameter } between 1 and 50 nm ; and
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH