Fig. 4. (A) SARS-CoV-2 pseudovirus green fluorescent protein (GFP) expression in infected HEK293T cells in the absence of antibody attached gold nanoparticles. (B) SARS-CoV-2 pseudovirus GFP expression in infected HEK293T cells in the presence of 10 ng mL−1 anti-spike antibody. (C) Variations in the inhibition efficiency of SARS-CoV-2 pseudovirus green fluorescent protein (GFP) expression in infected HEK293T cells in the presence of buffer (Mock), gold nanoparticles (GNPs), anti-spike antibody, and anti-spike antibody attached gold nanoparticles. (D) A TEM image showing that 100 ng mL−1 anti-spike antibody attached gold nanoparticles can break the lipid membrane of pseudo SARS-CoV-2.
