A Surface Coating that Rapidly Inactivates SARS-CoV-2 #MMPMID32657566
Behzadinasab S; Chin A; Hosseini M; Poon L; Ducker WA
ACS Appl Mater Interfaces 2020[Aug]; 12 (31): 34723-34727 PMID32657566show ga
SARS-CoV-2, the virus that causes the disease COVID-19, remains viable on solids for periods of up to 1 week, so one potential route for human infection is via exposure to an infectious dose from a solid. We have fabricated and tested a coating that is designed to reduce the longevity of SARS-CoV-2 on solids. The coating consists of cuprous oxide (Cu(2)O) particles bound with polyurethane. After 1 h on coated glass or stainless steel, the viral titer was reduced by about 99.9% on average compared to the uncoated sample. An advantage of a polyurethane-based coating is that polyurethane is already used to coat a large number of everyday objects. Our coating adheres well to glass and stainless steel as well as everyday items that people may fear to touch during a pandemic, such as a doorknob, a pen, and a credit card keypad button. The coating performs well in the cross-hatch durability test and remains intact and active after 13 days of being immersed in water or after exposure to multiple cycles of exposure to the virus and disinfection.
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ACS+Appl+Mater+Interfaces 2020 ; 12 (31): 34723-34727
