Daylight-Induced Antibacterial and Antiviral Nanofibrous Membranes Containing Vitamin K Derivatives for Personal Protective Equipment

• DOI: 10.1021/acsami.0c14883
• Publication Date: 2020-10-22T15:48:18Z
• Authors: Zheng Zhang; Ahmed Y. El-Moghazy; Nicharee Wisuthip...; Nitin Nitin; Diego Castillo; Brian G. Murphy; Gang Sun
• Keywords: Polyacrylonitrile; Polyvinyl Alcohol; Vinyl alcohol

During the development of antibacterial and antiviral materials for personal protective equipment (PPE), daylight active functional polymeric containing vitamin K compounds (VKs) impacts polymer structures to functions were investigated. As examples, hydrophobic polyacrylonitrile (PAN) hydrophilic poly(vinyl alcohol-co-ethylene) (PVA-co-PE) polymers directly blended with three VK electrospun into VK-containing nanofibrous membranes (VNFMs). The prepared VNFMs exhibited robust photoactivity in generating reactive oxygen species (ROS) under both (D65, 300–800 nm) ultraviolet A (UVA, 365 irradiation, resulting high antimicrobial efficiency (>99.9%) within a short exposure time (<90 min). Interestingly, PVA-co-PE/VK3 VNFM showed higher ROS production rates better biocidal than those PAN/VK3 same photoirradiation conditions, indicating that PVA-co-PE is matrix material these functions. Moreover, maintains its powerful microbicidal function even after five times repeated exposures bacteria viruses, showing stability reusability materials. fabrication photoinduced may provide new insights non-toxic reusable could be applied improved biological protections.