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. 2020 Jun 15;6:28. doi: 10.1038/s41378-020-0143-5

Fig. 6. Ultrasensitive ELISA detection of HBsAg in the hybrid PnP microfluidic device.

Fig. 6

a Scanned images of the paper strips with different HBsAg concentrations by an office scanner. b Linear plot of the corrected brightness of HBsAg over a concentration range from 34 × 101 pg/mL to 34 × 107 pg/mL.