Reusable MoS2-Modified Antibacterial Fabrics with Photothermal Disinfection Properties for Repurposing of Personal Protective Masks.
ACS Appl Mater Interfaces
; 13(11): 12912-12927, 2021 Mar 24.
Article
in English
| MEDLINE | ID: covidwho-1185365
ABSTRACT
The current pandemic caused by SARS-CoV-2 has seen a widespread use of personal protective equipment, especially face masks. This has created the need to develop better and reusable protective masks with built-in antimicrobial, self-cleaning, and aerosol filtration properties to prevent the transmission of air-borne pathogens such as the coronaviruses. Herein, molybdenum disulfide (MoS2) nanosheets are used to prepare modified polycotton fabrics having excellent antibacterial activity and photothermal properties. Upon sunlight irradiation, the nanosheet-modified fabrics rapidly increased the surface temperature to â¼77 °C, making them ideal for sunlight-mediated self-disinfection. Complete self-disinfection of the nanosheet-modified fabric was achieved within 3 min of irradiation, making the fabrics favorably reusable upon self-disinfection. The nanosheet-modified fabrics maintained the antibacterial efficiency even after 60 washing cycles. Furthermore, the particle filtration efficiency of three-layered surgical masks was found to be significantly improved through incorporation of the MoS2-modified fabric as an additional layer of protective clothing, without compromising the breathability of the masks. The repurposed surgical masks could filter out around 97% of 200 nm particles and 96% of 100 nm particles, thus making them potentially useful for preventing the spread of coronaviruses (120 nm) by trapping them along with antibacterial protection against other airborne pathogens.
Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Nanostructures
/
Disulfides
/
Recycling
/
Personal Protective Equipment
/
Anti-Infective Agents
/
Molybdenum
Limits:
Humans
Language:
English
Journal:
ACS Appl Mater Interfaces
Journal subject:
Biotechnology
/
Biomedical Engineering
Year:
2021
Document Type:
Article
Affiliation country:
Acsami.1c00083
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