Figure 5.

Investigation on the PDI effect of DTTPB on simulated high‐touch surfaces. a) Schematic illustration of experimental procedures for DTTPB‐mediated PDI of virus. b–d) qPCR analyses of PDI effect of DTTPB‐mediated PDI on (b) FMDV, (c) HCoV‐OC43, and (d) HCoV‐229E. In this experiment, varying concentrations of DTTPB were sprayed onto filter papers, and placed in a 24‐well plate and incubated with FMDV, HCoV‐OC43, or HCoV‐229E for 10 min, and then treated with or without white‐light irradiation (9 mW cm⁻²) for 20 min. These viruses were collected and employed for incubating with corresponding host cells for 24 h, followed by qPCR analysis. Data were expressed as mean ± SE, number of duplicates: 3.