Cooperative and dynamic assembly of affinity complexes

An affinity complex composition comprising providing (a) two or more primary affinity molecules, wherein said primary affinity molecules have affinity for one or more target molecules;

• and (b) one or more linker affinity molecules, wherein said linker affinity molecules have affinity for two or more of said primary affinity molecules;
• wherein said linker affinity molecules form a bridge when bound to two or more of said primary affinity molecules.