The layer of 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 {HEAD ~ the same side} of {TAIL ~ the substrate} 
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The layer of 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 { HEAD ~ the same side } of { TAIL ~ the substrate }
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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL