Each of the nanostructures includes a plurality of {HEAD ~ intermediate layers} on {TAIL ~ the conductive substrate} 
on
Each of the nanostructures includes a plurality of { HEAD ~ intermediate layers } on { TAIL ~ the conductive substrate }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL