Figure 5 | Scientific Reports

Figure 5

From: Phosphate-regulated expression of the SARS-CoV-2 receptor-binding domain in the diatom Phaeodactylum tricornutum for pandemic diagnostics

Figure 5

Algae-RBD is serologically active in an LFA device. Representative images of LFA devices with the algae-RBD (top) or DAGC174 RBD (bottom) as the capture antigen. Each test strip has two reaction lines, the control line that detects IgG antibodies, and the test line that specifically captures anti-RBD IgG antibodies. Values reported on each device are optical density readings of the control or test strip. Negative, serum confirmed SARS-CoV-2 negative by PCR; COVID-19 positive, serum confirmed SARS-CoV-2 positive by PCR; Post vaccination, serum post-vaccination with two doses of Pfizer-BioNTech vaccine. Additional data is presented in Supplementary Table 4.

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