A method 4 wherein the insoluble fibrous protein is selected from {HEAD ~ the group} consisting of collagen, keratin, fibrin, elastin, and {TAIL ~ mixtures} thereof 
consisting of
A method 4 wherein the insoluble fibrous protein is selected from { HEAD ~ the group } consisting of collagen , keratin , fibrin , elastin , and { TAIL ~ mixtures } thereof
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH