providing {TAIL ~ a plurality} of {HEAD ~ sensor areas} on which the nanoparticles to be verified accumulate when said nanoparticles are present, and 
providing { TAIL ~ a plurality } of { HEAD ~ sensor areas } on which the nanoparticles to be verified accumulate when said nanoparticles are present , and
OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH