{HEAD ~ The antigen} or antibody is mixed with {TAIL ~ a molten thermoplastic} and formed into the solid phase substrate  
is mixed with
{ HEAD ~ The antigen } or antibody is mixed with { TAIL ~ a molten thermoplastic } and formed into the solid phase substrate
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH