
| 10.1002/aic.17250
http://scihub22266oqcxt.onion/10.1002/aic.17250
 33785962!7995042!33785962
free
free
free
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AIChE+J 2021 ; 67 (6): e17250 Nephropedia Template TP
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A virucidal face mask based on the reverse-flow reactor concept for thermal inactivation of SARS-CoV-2 #MMPMID33785962Faucher S; Lundberg DJ; Liang XA; Jin X; Phillips R; Parviz D; Buongiorno J; Strano MSAIChE J 2021[Jun]; 67 (6): e17250 PMID33785962show ga
While facial coverings reduce the spread of SARS-CoV-2 by viral filtration, masks capable of viral inactivation by heating can provide a complementary method to limit transmission. Inspired by reverse-flow chemical reactors, we introduce a new virucidal face mask concept driven by the oscillatory flow of human breath. The governing heat and mass transport equations are solved to evaluate virus and CO(2) transport. Given limits imposed by the kinetics of SARS-CoV-2 thermal inactivation, human breath, safety, and comfort, heated masks may inactivate SARS-CoV-2 to medical-grade sterility. We detail one design, with a volume of 300 ml at 90 degrees C that achieves a 3-log reduction in viral load with minimal impedance within the mask mesh, with partition coefficient around 2. This is the first quantitative analysis of virucidal thermal inactivation within a protective face mask, and addresses a pressing need for new approaches for personal protective equipment during a global pandemic.�
  
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