Fig. 1.

Depiction of principle of antigen antibody interaction in a cocktail of S and N peptide-protein coated on microtiter plate. A cocktailof multiplexing proteins (S and N) and peptides (ILPDPSKPSKRS, identified from S-protein and TFPPTEPKKDKKKKTDE, identified from the N-protein immunogenic regions) were used for coating the microtiter ELISA plates. This was followed by multiple rounds of incubation, washing, and blocking of the interaction complex