To achieve {TAIL ~ efficient signal generation}, the invention can exploit either the intrinsic optical properties of {HEAD ~ the microcolonies} or various externally applied labeling reagents 
To achieve
To achieve { TAIL ~ efficient signal generation } , the invention can exploit either the intrinsic optical properties of { HEAD ~ the microcolonies } or various externally applied labeling reagents
REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH