title: Evaluation of Ag nanoparticle coated air filter against aerosolized virus: Anti-viral efficiency with dust loading.
abstract: In this study, the effect of dust loading on the anti-viral ability of an anti-viral air filter was investigated. Silver nanoparticles approximately 11 nm in diameter were synthesized via a spark discharge generation system and were used as anti-viral agents coated onto a medium air filter. The pressure drop, filtration efficiency, and anti-viral ability of the filter against aerosolized bacteriophage MS2 virus particles were tested with dust loading. The filtration efficiency and pressure drop increased with dust loading, while the anti-viral ability decreased. Theoretical analysis of anti-viral ability with dust loading was carried out using a mathematical model based on that presented by Joe et al. (J. Hazard. Mater.; 280: 356-363, 2014). Our model can be used to compare anti-viral abilities of various anti-viral agents, determine appropriate coating areal density of anti-viral agent on a filter, and predict the life cycle of an anti-viral filter.
authors.affiliation: School of Mechanical Engineering, Yonsei University, Seoul 120-749, Republic of Korea. Electronic address: kazamajo@nate.com.
authors.forename: Yun Haeng
authors.initials: YH
authors.lastname: Joe
authors.affiliation: School of Mechanical Engineering, Yonsei University, Seoul 120-749, Republic of Korea. Electronic address: dhoonpark@yonsei.ac.kr.
authors.forename: Dae Hoon
authors.initials: DH
authors.lastname: Park
authors.affiliation: School of Mechanical Engineering, Yonsei University, Seoul 120-749, Republic of Korea. Electronic address: jh@yonsei.ac.kr.
authors.forename: Jungho
authors.initials: J
authors.lastname: Hwang
mesh_terms: D000336:Aerosols; D061808:Air Filters; D000391:Air Microbiology; D000998:Antiviral Agents; D004391:Dust; D017909:Levivirus; D053768:Metal Nanoparticles; D008962:Models, Theoretical; D012834:Silver
chemical_list: D000336:Aerosols; D000998:Antiviral Agents; D004391:Dust; D012834:Silver
keywords: Airborne virus; Dust loading; Inactivation; Silver nanoparticles