{HEAD ~ The layer} of {TAIL ~ gating agent} is disposed atop one of the substrate and the principal substance on the substrate, and the gating agent and the principal substance are applied to the same side of the substrate 
{ HEAD ~ The layer } of { TAIL ~ gating agent } is disposed atop one of the substrate and the principal substance on the substrate , and the gating agent and the principal substance are applied to the same side of the substrate
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH