{HEAD ~ A protein} such as an enzyme or {TAIL ~ antibody} is immobilized by crosslinking crystals of the protein with a multifunctional crosslinking agent 
such as
{ HEAD ~ A protein } such as an enzyme or { TAIL ~ antibody } is immobilized by crosslinking crystals of the protein with a multifunctional crosslinking agent
HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH