Specificity means the ability of the membrane to selectively bind or filter {TAIL ~ certain species} from {HEAD ~ complex mixtures} 
Specificity means the ability of the membrane to selectively bind or filter { TAIL ~ certain species } from { HEAD ~ complex mixtures }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD