{TAIL ~ The linking groups} provide adequate distance between the dye and the biomolecule for efficient attachment without imparting {HEAD ~ excessive hydrophobicity} 
{ TAIL ~ The linking groups } provide adequate distance between the dye and the biomolecule for efficient attachment without imparting { HEAD ~ excessive hydrophobicity }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD