Triboelectrification induced self-powered microbial disinfection using nanowire-enhanced localized electric field

Zheng-Yang Huo, Young-Jun Kim, In-Yong Suh, Dong-Min Lee, Jeong Hwan Lee, Ye Du, Si Wang, Hong-Joon Yoon and Sang-Woo Kim ()
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Zheng-Yang Huo: Sungkyunkwan University (SKKU)
Young-Jun Kim: Sungkyunkwan University (SKKU)
In-Yong Suh: Sungkyunkwan University (SKKU)
Dong-Min Lee: Sungkyunkwan University (SKKU)
Jeong Hwan Lee: Sungkyunkwan University (SKKU)
Ye Du: Sichuan University
Si Wang: Sungkyunkwan University (SKKU)
Hong-Joon Yoon: Sungkyunkwan University (SKKU)
Sang-Woo Kim: Sungkyunkwan University (SKKU)

Nature Communications, 2021, vol. 12, issue 1, 1-11

Abstract: Abstract Air-transmitted pathogens may cause severe epidemics showing huge threats to public health. Microbial inactivation in the air is essential, whereas the feasibility of existing air disinfection technologies meets challenges including only achieving physical separation but no inactivation, obvious pressure drops, and energy intensiveness. Here we report a rapid disinfection method toward air-transmitted bacteria and viruses using the nanowire-enhanced localized electric field to damage the outer structures of microbes. This air disinfection system is driven by a triboelectric nanogenerator that converts mechanical vibration to electricity effectively and achieves self-powered. Assisted by a rational design for the accelerated charging and trapping of microbes, this air disinfection system promotes microbial transport and achieves high performance: >99.99% microbial inactivation within 0.025 s in a fast airflow (2 m/s) while only causing low pressure drops (

Date: 2021
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DOI: 10.1038/s41467-021-24028-5

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