Qin, Hongbo, Qiu, Hengju, He, Shi-Ting, Hong, Bixia, Liu, Ke, Lou, Fuxing, Li, Maochen, Hu, Pan, Kong, Xianghao, Song, Yujie, Liu, Yuchen, Pu, Mingfang, Han, Pengjun, Li, Mengzhe, An, Xiaoping, Song, Lihua, Tong, Yigang, Fan, Huahao, and Wang, Ruixue
Coronavirus disease 2019 (COVID-19) has become a worldwide public health emergency, and the high transmission of SARS-CoV-2 variants has raised serious concerns. Efficient disinfection methods are crucial for the prevention of viral transmission. Herein, pulse power-driven cold atmospheric plasma (CAP), a novel sterilization strategy, was found to potently inactivate SARS-CoV-2-like coronavirus GX_P2V, six strains of major epidemic SARS-CoV-2 variants and even swine coronavirus PEDV and SADS-CoV within 300 s (with inhibition rate more than 99%). We identified four dominant short-lived reactive species, ONOO-, 1O 2 , O 2 - and·OH, generated in response to CAP and distinguished their roles in the inactivation of GX_P2V and SARS-CoV-2 spike protein receptor binding domain (RBD), which is responsible for recognition and binding to human angiotensin-converting enzyme 2 (hACE2). Our study provides detailed evidence of a novel surface disinfection strategy for SARS-CoV-2 and other coronaviruses. [Display omitted] • Wide-spectrum disinfection using pulse power-driven CAP on coronavirus and SARS-CoV-2 variants is studied for the first time. • CAP effectively disinfects coronavirus and SARS-CoV-2 variants within 300s. • The oxidative reaction of CAP affects the SARS-CoV-2 spike protein rather than damaging viral RNA. • The disinfection effect of RONS on coronavirus follows the order of ONOO- > O 2 ->1O 2 > ·OH. [ABSTRACT FROM AUTHOR]