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