Xiaoling Wang,a,1 Ting Hu,a,1 Bing Hu,b Yan Liu,c Yu Wang,a Yunxiang He,a Yan Li,d Kun Cai,b,⁎ Xingcai Zhang,c,e,⁎⁎ and Junling Guoa,f,g,⁎⁎⁎
"aBMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
bInstitute of Health Inspection and Testing, Hubei Provincial Center for Disease Control and Prevention (Hubei CDC), Wuhan, Hubei 430079, China
cJohn A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, United States
dTongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430079, China
eSchool of Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
fState Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, China
gBioproducts Institute, Departments of Chemical and Biological Engineering, Chemistry, and Wood Science, The University of British Columbia, Vancouver, BC, Canada.
⁎⁎Corresponding author at: John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, United States.
⁎⁎⁎Corresponding author at: BMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China.
1These authors equally contributed to this work."
"Face masks are effective response to address this havoc pandemic caused by respiratory infection virus, but they are lack of reusable, antibacterial, and antiviral abilities due to their simple filtration mechanism, bringing to a supply shortage and severe plastic pollution globally. Herein, we designed reusable, antiviral, and antibacterial masks (referred to as R2A masks) that transformed from commonly-used standard masks and household fabrics based on the polyphenol-based surface functionalization. R2A nanocoatings are mainly composed of supramolecular complexation of natural polyphenols and metal ions, possessing a high performance of antibacterial property and comprehensive recyclability. Interfacial interaction of R2A nanocoating can effectively capture the spreading of particulate matters and aerosols containing virus-mimic nanoparticles even after 10 recycles. Moreover, R2A masks exist antibacteria and antivirus for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Collectively, this simple functional enhancement of masks provides a sustainable and strategic preparation for combating the infectious respiratory diseases.
Keywords: Face mask, SARS-CoV-2, Reusability, Surface functionalization, Aerosol
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Journal of hazardous materials
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