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. 2021 Aug 24;21(20):22758–22766. doi: 10.1109/JSEN.2021.3107736

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Fig. 3. — Absorbance response obtained for a range of SARS-CoV-2 N-protein concentrations from POF and GOF sensor probes chemisorbed with anti-SARS-CoV-2 -N-protein IgG1 with the help of a green LED-photodetector setup due to binding of immunocomplex with AuNP labels (40 nm, ) conjugated with anti-SARS CoV-2 -N-protein IgG2 (n = 3). The width of the control band represents the standard deviation of respective POF and GOF sensor probes (n = 3).

Inline graphic — Absorbance response obtained for a range of SARS-CoV-2 N-protein concentrations from POF and GOF sensor probes chemisorbed with anti-SARS-CoV-2 -N-protein IgG1 with the help of a green LED-photodetector setup due to binding of immunocomplex with AuNP labels (40 nm, ) conjugated with anti-SARS CoV-2 -N-protein IgG2 (n = 3). The width of the control band represents the standard deviation of respective POF and GOF sensor probes (n = 3).