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. 2021 Jan 18;3(6):1588–1596. doi: 10.1039/d0na01007c

Fig. 2. (A) A TEM image showing the morphology of pseudo SARS-CoV-2, which we used for virus diagnosis. (B) A TEM image showing the morphology of antibody attached GNP conjugated pseudo SARS-CoV-2 when we used 20 pM gold nanoparticles. (C) A TEM image showing the morphology of anti-spike antibody attached gold nanoparticle conjugated pseudo SARS-CoV-2 when we used 800 pM gold nanoparticles. (D) Variations in the absorption spectrum of antibody attached GNPs in the presence and absence of pseudo SARS-CoV-2. (E) Changes in the color of antibody attached GNPs in the presence of different amounts of pseudo SARS-CoV-2 (10–5000 virus particles per mL).

Fig. 2