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. Author manuscript; available in PMC: 2022 Jul 13.
Published in final edited form as: Lab Chip. 2021 Jul 13;21(14):2730–2737. doi: 10.1039/d1lc00293g

Figure 3.

Figure 3.

A. Optimization of the concentration of sucrose solution used for the paper-based sucrose valve. ddH2O (0%), 5%, 10% and 15% sucrose solution were dropped and dried on the both sides of the paper-based valve, respectively. B. Fluorescence detection of SARS-CoV-2 on the autonomous lab-on-paper platform at different incubation times. *** indicate a significant difference (p < 0.001, t-test). Error bars denote s.d. (n=3).