Rapid, Multispecies Detection of SARS-CoV-2 Antibodies via a Meta-Surface Plasmon Resonance Biosensor

Figure 1

Characterization of the PEI-GNPs MetaSPR biosensor: (a) diagram representation of the mechanism of the MetaSPR biosensor; (b) detection of signal responses in cat, dog, and mink samples using the MetaSPR biosensor set up with different concentrations of PEI; (c) different proportions of PEI and GNP in the MetaSPR biosensor were used to detect signal responses in cat, dog, and mink samples; (d) scanning electron microscopy image of GNPs; (e) scanning electron microscopy image GNPs on a replicated nanocup array.

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