Table 1.

Color intensity readings of free and gold-conjugated proteins (Nbs, mAbs, and ACE2) following their reaction with SARS-CoV-2 S1 antigen in dot blot assay.

	Nbs		mAbs		ACE2		Blank	Blank
	Free	Gold conjugated	Free	Gold conjugated	Free	Gold conjugated	Gold	BSA
Color intensity	2.31 × 105	3.64 × 105	2.19 × 105	2.86 × 105	1.82 × 105	2.87 × 105	0.46 × 105	0.27 × 105