Upon UV illumination {HEAD ~ the dye compounds} display {TAIL ~ intense absorption} as well as visible fluorescence emission 
display
Upon UV illumination { HEAD ~ the dye compounds } display { TAIL ~ intense absorption } as well as visible fluorescence emission
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH