A chemically modified microporous membrane is positioned between the two templates so that the holes in {HEAD ~ a first template} are aligned with the holes in the second template, and the exposed portion of the membrane between {TAIL ~ a set} of mating holes is sealed from other sets of mating holes 
A chemically modified microporous membrane is positioned between the two templates so that the holes in { HEAD ~ a first template } are aligned with the holes in the second template , and the exposed portion of the membrane between { TAIL ~ a set } of mating holes is sealed from other sets of mating holes
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH