Fig. 4
a Antiviral activity of Ag3PO4 under red-light (625 nm) and blue-light (460 nm) irradiation. HT1080 cells were inoculated with MoMLV-10A1-EGFP at an MOI of 1. Viral supernatants were collected after mixing with Ag3PO4 under no light, red-light, and blue-light irradiation. Representative cells observed under optic and fluorescence microscopy are shown in the left panel. Forty-eight hours after infection, the GFP-expressed cells were analyzed by flow cytometry. Fluorescence-gated cell percents are shown in line graphs in the right panel (mean ± SEM; n = 3). b The ROS concentrations generated by Ag3PO4 suspended in PBS under dark conditions and under red-light or blue-light irradiation. Quantified data are shown in bar graphs (mean ± SEM; n = 3) *p < 0.0001