The fluorophore conjugated oligosaccharide is one embodiment derived from the O antigen chain of the cell wall lipopolysaccharide fraction from bacteria, such as {HEAD ~ Gram negative bacteria}, having {TAIL ~ us} O antigen chain 
having
The fluorophore conjugated oligosaccharide is one embodiment derived from the O antigen chain of the cell wall lipopolysaccharide fraction from bacteria , such as { HEAD ~ Gram negative bacteria } , having { TAIL ~ us } O antigen chain
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH