A Novel Rapid Test to Detect Anti-SARS-CoV-2 N Protein IgG Based on Shear Horizontal Surface Acoustic Wave (SH-SAW)
Overview
Authors
Affiliations
Since the Coronavirus disease 2019 (COVID-19) pandemic outbreak, many methods have been used to detect antigens or antibodies to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), including viral culture, nucleic acid test, and immunoassay. The shear-horizontal surface acoustic wave (SH-SAW) biosensor is a novel pathogen detection platform with the advantages of high sensitivity and short detection time. The objective of this study is to develop a SH-SAW biosensor to detect the anti-SARS-CoV-2 nucleocapsid antibody. The rabbit sera collected from rabbits on different days after SARS-CoV-2 N protein injection were evaluated by SH-SAW biosensor and enzyme-linked immunosorbent assay (ELISA). The results showed that the SH-SAW biosensor achieved a high correlation coefficient (R = 0.9997) with different concentrations (34.375-1100 ng/mL) of the "spike-in" anti-N protein antibodies. Compared to ELISA, the SH-SAW biosensor has better sensitivity and can detect anti-N protein IgG signals earlier than ELISA on day 6 ( < 0.05). Overall, in this study, we demonstrated that the SH-SAW biosensor is a promising platform for rapid in vitro diagnostic (IVD) testing, especially for antigen or antibody testing.
Cheng C, Yatsuda H, Chen H, Young G, Liu S, Wang R Sensors (Basel). 2024; 24(20).
PMID: 39459999 PMC: 11511040. DOI: 10.3390/s24206517.
Carmona-Cejas J, Mirea T, Hervas-Garcia R, Olivares J, Clement M Sensors (Basel). 2024; 24(9).
PMID: 38732983 PMC: 11086162. DOI: 10.3390/s24092877.
Chen X, Zhang C, Liu X, Dong Y, Meng H, Qin X Microsyst Nanoeng. 2023; 9:141.
PMID: 37954038 PMC: 10632424. DOI: 10.1038/s41378-023-00600-5.
Gouda M, Ghazzawy H, Alqahtani N, Li X Molecules. 2023; 28(12).
PMID: 37375410 PMC: 10304203. DOI: 10.3390/molecules28124855.
Cheng C, Yatsuda H, Goto M, Kondoh J, Liu S, Wang R Biosensors (Basel). 2023; 13(6).
PMID: 37366970 PMC: 10296254. DOI: 10.3390/bios13060605.