Co-existing “spear-and-shield” air filter: Anchoring proteinaceous pathogen and self-sterilized nanocoating for combating viral pandemic
- Authors
- Choi, Daheui; Choi, Moonhyun; Jeong, Hyejoong; Heo, Jiwoong; Kim, Taihyun; Park, Sohyeon; Jin, Youngho; Lee, Sangmin; Hong, Jinkee
- Issue Date
- Dec-2021
- Publisher
- Elsevier B.V.
- Keywords
- Antibacterial; Copper ion; Filter; Laponite; Protein-trapping performance; SARS-CoV-2
- Citation
- Chemical Engineering Journal, v.426
- Journal Title
- Chemical Engineering Journal
- Volume
- 426
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/47507
- DOI
- 10.1016/j.cej.2021.130763
- ISSN
- 1385-8947
1873-3212
- Abstract
- Infectious pollutants bioaerosols can threaten human public health. In particular, the indoor environment provides a unique exposure situation to induce infection through airborne transmission like SARS-CoV-2. To prevent the infection from spreading, personal protective equipment or indoor air purification is necessary. However, it has been discovered that the conventional filter can become contaminated by pathogen-containing aerosols, meaning that advanced filtering and self-sterilization systems are required. Here, we fabricate a multilayered nanocoating around the fabric using laponite (LAP) with Cu2+ ions (LAP-Cu2+ nanocoating) two contradictory functions in one system: trapping proteinaceous pathogens and antibacterial effect. Due to the strong LAP-protein interaction, albumin and spike protein (S-protein) are trapped into the fabric when proteins are sprayed using a nebulizer. The protein-blocking performance of the nanocoated fabric is 9.55-fold higher than bare fabric. These trapping capacities are retained after rinsing and repeated adsorption cycles, showing reproducibility for air filtration. Even though the protein-binding occurred, the LAP-Cu2+ fabric indicates antibacterial effect. LAP-Cu2+ fabric has an equivalent air and water transmittance rate to that of bare fabric with a stability under physiological environment. Therefore, given its excellent “Spear-and-shield” functions, the proposed LAP-Cu2+ fabric shows great potential for use in filter and masks during the viral pandemic. © 2021 Elsevier B.V.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Mechanical Engineering > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/47507)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.