{HEAD ~ A typical single color preparation} of {TAIL ~ nanoparticles} has crystals that are preferably of substantially identical size and shape 
{ HEAD ~ A typical single color preparation } of { TAIL ~ nanoparticles } has crystals that are preferably of substantially identical size and shape
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH