Table 3. Interactions Formed for the Sandwiched Structure: Antibody–NP–LPS of E. coli.

	types of interactions formed
	hydrogen bonds		metal ion interactions
receptor–ligand complex	residue	amino acid	residue	amino acid
antibody–ZnO–CuO			98L	HIS

	hydrogen bonds		hydrophobic interactions
antibody–LPS of E. coli	101L	LEU	33H	TYR
			33H	TYR
			33H	TYR
			50H	ALA
			101H	TYR
			104H	TYR
			104H	TYR