Fig. 4.

(A) Pathogenic aerosols with a diameter of 1–5 μm prepared using an aerosol generator. (B) TTVB@NM covered on a medical mask suffered from E. coli aerosols treatment and later analysis of live bacteria on and underneath the membrane using a plate-counting method. (C) SEM images of different microbes intercepted on the surface of TTVB@NM. (D) A picture of the antimicrobial experiment against aerosols containing mixed microbes under outdoor sunlight (sunlight intensity: 83 mW cm⁻², outdoor temperature: 26 °C) and survival rates of different microbes after (E) 5 min or (F) 10 min sunbathing. (Red arrows: antimicrobial efficacy is around 100%). (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)