The method 2, wherein said metal nanowires are selected from nanowires of a transition metal or {HEAD ~ an alloy} of {TAIL ~ a transition metal} 
of
The method 2 , wherein said metal nanowires are selected from nanowires of a transition metal or { HEAD ~ an alloy } of { TAIL ~ a transition metal }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL