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Fig. 1 | BMC Microbiology

Fig. 1

From: Development and multi-center clinical trials of an up-converting phosphor technology-based point-of-care (UPT-POCT) assay for rapid COVID-19 diagnosis and prediction of protective effects

Fig. 1

Illustration of UPT biosensor and evaluation of the detection limit of UPT-POCT method. a Appearance of UPT biosensor employed in this study. b Illustration of result display of UPT biosensor. c and d are the results for neutralizing antibodies against RBD separated from a convalescent patient from 5 to 1000 ng/mL (n = 14). c Standard curve of UPT-POCT for quantification. d The Spearman correlation analysis between the logarithm of T/C minus methodological threshold and the logarithm of the concentration. e and f are the results for serially diluted serum samples from another convalescent COVID-19 patient. The linear relationship (e) and Spearman correlation (f) between ELISA OD value and T/C ratio of UPT

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BMC Microbiology

ISSN: 1471-2180

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