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. 2021 Feb 3;414:128788. doi: 10.1016/j.cej.2021.128788

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Fig. 6 — Natural indoor sunlight-illuminated TiO₂ inactivates HCV. HCV was subjected to indoor sunlight for 2.5 (A) and 5 h (B), then inoculated to naïve Huh7.5.1 cells. Three days post-infection, the infectivity titers were determined by immunofluorescence of NS3 proteins. Viral infectivity titers were expressed as a percentage of the value in the control treatment. The error bars in panel C were derived from triplicates. **, P＜0.01; *, P＜0.05; NS, P＞0.05.