For example, in addition to water, a substrate solution may also contain {HEAD ~ a cosolvent} such as dimethyl formamide, {TAIL ~ dimethylsulfonate}, methanol or ethanol, typically in a range of 1% 10%  
such as
For example , in addition to water , a substrate solution may also contain { HEAD ~ a cosolvent } such as dimethyl formamide , { TAIL ~ dimethylsulfonate } , methanol or ethanol , typically in a range of 1 % 10 %
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH