Polarity-Dominated Stable N97 Respirators for Airborne Virus Capture Based on Nanofibrous Membranes

Qifei Wang; Yingzhen Wei; Wenbo Li; Xizi Luo; Xinyue Zhang; Jiancheng Di; Guoqing Wang; Jihong Yu

doi:10.1002/anie.202108951

Polarity-Dominated Stable N97 Respirators for Airborne Virus Capture Based on Nanofibrous Membranes

Qifei Wang, Yingzhen Wei, Wenbo Li, Xizi Luo, Xinyue Zhang, Jiancheng Di, Guoqing Wang, Jihong Yu^*

^*Corresponding author for this work

Jilin University

Research output: Contribution to journal › Article › peer-review

37 Citations (Scopus)

Abstract

The longevity and reusability of N95-grade filtering facepiece respirators (N95 FFRs) are limited by consecutive donning and disinfection treatments. Herein, we developed stable N97 nanofibrous respirators based on chemically modified surface to enable remarkable filtration characteristics via polarity driven interaction. This was achieved by a thin-film coated polyacrylonitrile nanofibrous membrane (TFPNM), giving an overall long-lasting filtration performance with high quality factor at 0.42 Pa⁻¹ (filtration efficiency: over 97 %; pressure drop: around 10 Pa), which is higher than that of the commercial N95 FFRs (0.10–0.41 Pa⁻¹) tested with a flow rate of 5 L min⁻¹ and the 0.26 μm NaCl aerosol. A coxsackie B4 virus filtration test demonstrated that TFPNM also had strong virus capture capacity of 97.67 %. As compared with N95 FFRs, the TFPNM was more resistant to a wider variety of disinfection protocols, and the overall filtration characteristics remained N97 standard.

Original language	English
Pages (from-to)	23756-23762
Number of pages	7
Journal	Angewandte Chemie - International Edition
Volume	60
Issue number	44
DOIs	https://doi.org/10.1002/anie.202108951
Publication status	Published - 25 Oct 2021
Externally published	Yes

Keywords

N97 grade
materials science
reusability
thin films
virus capture

Access to Document

10.1002/anie.202108951

Cite this

@article{be9555a675114648b791157f7d2ffc1d,

title = "Polarity-Dominated Stable N97 Respirators for Airborne Virus Capture Based on Nanofibrous Membranes",

abstract = "The longevity and reusability of N95-grade filtering facepiece respirators (N95 FFRs) are limited by consecutive donning and disinfection treatments. Herein, we developed stable N97 nanofibrous respirators based on chemically modified surface to enable remarkable filtration characteristics via polarity driven interaction. This was achieved by a thin-film coated polyacrylonitrile nanofibrous membrane (TFPNM), giving an overall long-lasting filtration performance with high quality factor at 0.42 Pa−1 (filtration efficiency: over 97 \%; pressure drop: around 10 Pa), which is higher than that of the commercial N95 FFRs (0.10–0.41 Pa−1) tested with a flow rate of 5 L min−1 and the 0.26 μm NaCl aerosol. A coxsackie B4 virus filtration test demonstrated that TFPNM also had strong virus capture capacity of 97.67 \%. As compared with N95 FFRs, the TFPNM was more resistant to a wider variety of disinfection protocols, and the overall filtration characteristics remained N97 standard.",

keywords = "N97 grade, materials science, reusability, thin films, virus capture",

author = "Qifei Wang and Yingzhen Wei and Wenbo Li and Xizi Luo and Xinyue Zhang and Jiancheng Di and Guoqing Wang and Jihong Yu",

note = "Publisher Copyright: {\textcopyright} 2021 Wiley-VCH GmbH.",

year = "2021",

month = oct,

day = "25",

doi = "10.1002/anie.202108951",

language = "English",

volume = "60",

pages = "23756--23762",

journal = "Angewandte Chemie - International Edition",

issn = "1433-7851",

publisher = "John Wiley and Sons Ltd",

number = "44",

}

TY - JOUR

T1 - Polarity-Dominated Stable N97 Respirators for Airborne Virus Capture Based on Nanofibrous Membranes

AU - Wang, Qifei

AU - Wei, Yingzhen

AU - Li, Wenbo

AU - Luo, Xizi

AU - Zhang, Xinyue

AU - Di, Jiancheng

AU - Wang, Guoqing

AU - Yu, Jihong

PY - 2021/10/25

Y1 - 2021/10/25

N2 - The longevity and reusability of N95-grade filtering facepiece respirators (N95 FFRs) are limited by consecutive donning and disinfection treatments. Herein, we developed stable N97 nanofibrous respirators based on chemically modified surface to enable remarkable filtration characteristics via polarity driven interaction. This was achieved by a thin-film coated polyacrylonitrile nanofibrous membrane (TFPNM), giving an overall long-lasting filtration performance with high quality factor at 0.42 Pa−1 (filtration efficiency: over 97 %; pressure drop: around 10 Pa), which is higher than that of the commercial N95 FFRs (0.10–0.41 Pa−1) tested with a flow rate of 5 L min−1 and the 0.26 μm NaCl aerosol. A coxsackie B4 virus filtration test demonstrated that TFPNM also had strong virus capture capacity of 97.67 %. As compared with N95 FFRs, the TFPNM was more resistant to a wider variety of disinfection protocols, and the overall filtration characteristics remained N97 standard.

AB - The longevity and reusability of N95-grade filtering facepiece respirators (N95 FFRs) are limited by consecutive donning and disinfection treatments. Herein, we developed stable N97 nanofibrous respirators based on chemically modified surface to enable remarkable filtration characteristics via polarity driven interaction. This was achieved by a thin-film coated polyacrylonitrile nanofibrous membrane (TFPNM), giving an overall long-lasting filtration performance with high quality factor at 0.42 Pa−1 (filtration efficiency: over 97 %; pressure drop: around 10 Pa), which is higher than that of the commercial N95 FFRs (0.10–0.41 Pa−1) tested with a flow rate of 5 L min−1 and the 0.26 μm NaCl aerosol. A coxsackie B4 virus filtration test demonstrated that TFPNM also had strong virus capture capacity of 97.67 %. As compared with N95 FFRs, the TFPNM was more resistant to a wider variety of disinfection protocols, and the overall filtration characteristics remained N97 standard.

KW - N97 grade

KW - materials science

KW - reusability

KW - thin films

KW - virus capture

UR - http://www.scopus.com/inward/record.url?scp=85115278018&partnerID=8YFLogxK

U2 - 10.1002/anie.202108951

DO - 10.1002/anie.202108951

M3 - Article

C2 - 34448329

AN - SCOPUS:85115278018

SN - 1433-7851

VL - 60

SP - 23756

EP - 23762

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 44

ER -

Polarity-Dominated Stable N97 Respirators for Airborne Virus Capture Based on Nanofibrous Membranes

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this