Daylight-driven rechargeable antibacterial and antiviral nanofibrous membranes for bioprotective applications

Si, Yang; Zhang, Zheng; Wu, Wanrong; Fu, Qiuxia; Huang, Kang; Nitin, Nitin; Ding, Bin; Sun, Gang

In conclusion, we have demonstrated a synergistic assembly strategy for the scalable fabrication of daylight-driven rechargeable antibacterial and antiviral materials through the combination of electrospun nanofibers and the daylight-active photosensitizers. The photoactive RNMs can store the biocidal activity under light irradiation and readily release ROS, providing biocidal functions under dim light or dark conditions. With their fast ROS production, ease of activity storing, long-term durability, and high biocidal efficacy, the RNMs can rapidly and effectively kill bacteria and viruses, either under light exposure or under dark conditions. We also demonstrated the incorporation of RNMs as a biocidal surface protective layer on protective equipment to achieve robust bioprotection against pathogens either in aerosol or in liquid forms.