Catching and killing of airborne SARS-CoV-2 to control spread of COVID-19 by a heated air disinfection system,Materials Today Physics

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Catching and killing of airborne SARS-CoV-2 to control spread of COVID-19 by a heated air disinfection system
Materials Today Physics ( IF 10.0 ) Pub Date : 2020-12-01 , DOI: 10.1016/j.mtphys.2020.100249
L Yu ₁ , G K Peel ₂ , F H Cheema ₃ , W S Lawrence ₄ , N Bukreyeva ₅ , C W Jinks ₂ , J E Peel ₄ , J W Peterson ₄ , S Paessler ₅ , M Hourani ₂ , Z Ren ₁

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Abstract Airborne transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) via air-conditioning systems poses a significant threat for the continued escalation of the current coronavirus disease (COVID-19) pandemic. Considering that SARS-CoV-2 cannot tolerate temperatures above 70 °C, here we designed and fabricated efficient filters based on heated nickel (Ni) foam to catch and kill SARS-CoV-2. Virus test results revealed that 99.8% of the aerosolized SARS-CoV-2 was caught and killed by a single pass through a novel Ni-foam-based filter when heated up to 200 °C. Additionally, the same filter was also used to catch and kill 99.9% of Bacillus anthracis, an airborne spore. This study paves the way for preventing transmission of SARS-CoV-2 and other highly infectious airborne agents in closed environments.

中文翻译：

通过热空气消毒系统捕获和杀死空气中的 SARS-CoV-2 以控制 COVID-19 的传播

摘要严重急性呼吸系统综合症冠状病毒 2 (SARS-CoV-2) 通过空调系统的空气传播对当前冠状病毒病 (COVID-19) 大流行的持续升级构成了重大威胁。考虑到 SARS-CoV-2 不能耐受 70 °C 以上的温度，我们在这里设计并制造了基于加热泡沫镍 (Ni) 的高效过滤器来捕获和杀死 SARS-CoV-2。病毒测试结果显示，当加热到 200°C 时，99.8% 的雾化 SARS-CoV-2 通过一次通过新型镍泡沫过滤器被捕获并杀死。此外，同样的过滤器也被用来捕捉和杀死 99.9% 的炭疽芽孢杆菌，一种空气传播的孢子。这项研究为防止 SARS-CoV-2 和其他高传染性空气传播媒介在封闭环境中传播铺平了道路。

更新日期：2020-12-01

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