{TAIL ~ Arginine}, {HEAD ~ lysine}, and glutamic acid are preferably supplemented in the hydrogel matrix 
{ TAIL ~ Arginine } , { HEAD ~ lysine } , and glutamic acid are preferably supplemented in the hydrogel matrix
TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH