As used herein “charge” or “charged” refers to {HEAD ~ both negatively and positively charged metabolites} or {TAIL ~ metabolites} that can be induced to have charge separation 
As used herein “ charge ” or “ charged ” refers to { HEAD ~ both negatively and positively charged metabolites } or { TAIL ~ metabolites } that can be induced to have charge separation
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH