In one hour, professor's surface coating inactivates virus that causes COVID-19
Posted by Doug_Huffman 3 years, 9 months ago to Technology
Medical Express .com “[ ... ]
Since mid-April, Ducker has been working with Leo Poon, a professor and researcher at the University of Hong Kong's School of Public Health, to test the film's success at inactivating the virus. Their research was published July 13 in ACS Applied Materials & Interfaces, a scientific journal for chemists, engineers, biologists, and physicists.
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A Surface Coating that Rapidly Inactivates SARS-CoV-2
ACS Appl. Mater. Interfaces 2020, XXXX, XXX, XXX-XXX
Publication Date:July 13, 2020
https://doi.org/10.1021/acsami.0c11425
Copyright © 2020 American Chemical Society
Abstract
SARS-CoV-2, the virus that causes the disease COVID-19, remains viable on solids for periods of up to one 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 (Cu2O) [CAS 1317-39-1] particles bound with polyurethane. After one hour 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 immersed in water, or after exposure to multiple cycles of exposure to virus and disinfection.
http://Sci-hub.tw hops all paywalls
Since mid-April, Ducker has been working with Leo Poon, a professor and researcher at the University of Hong Kong's School of Public Health, to test the film's success at inactivating the virus. Their research was published July 13 in ACS Applied Materials & Interfaces, a scientific journal for chemists, engineers, biologists, and physicists.
[ ... ]”
A Surface Coating that Rapidly Inactivates SARS-CoV-2
ACS Appl. Mater. Interfaces 2020, XXXX, XXX, XXX-XXX
Publication Date:July 13, 2020
https://doi.org/10.1021/acsami.0c11425
Copyright © 2020 American Chemical Society
Abstract
SARS-CoV-2, the virus that causes the disease COVID-19, remains viable on solids for periods of up to one 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 (Cu2O) [CAS 1317-39-1] particles bound with polyurethane. After one hour 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 immersed in water, or after exposure to multiple cycles of exposure to virus and disinfection.
http://Sci-hub.tw hops all paywalls
I'll use the following link for info as these folks have skin in the game.
https://www.paint.org/coatingstech-ma...
Historically, also, brass and bronze had been used extensively for door and window hardware. Daily multiple contacts for anyone who was active. Copper and Zinc, incidentally scuffed onto the skin and transferred to the face / nasal passages may have been an incidental deterrent to the viral and bacterial infections. You have an extensive understanding beyond mine; then why, are we seeing +2 valence elementals, highly metabolizable in reasonable proportion, as solution (no pun intended) to bacterial and viral conditions?
I saw a Neil deGrass Tyson interview in which Neil asked the interviewer, in the midst of a fairly in depth explanation of nuclear particle acceleration;
"What will be the last words of humanity?"
Interviewer: I don't know.
Neil: Let's try it this way......
Over 30 years in machine shop with at least 15% of materials containing CU and ZN and almost 100% dry machining. I've very rarely had any respiratory distress regarding flu or cold. The times I was afflicted seem to be associated with predominantly administrative activity. We have had a very low incidence, severity and duration of respiratory illness across the employee base as well, despite substantive "outbreak" and exposure in the given area.
I'm just thinking in the realm of possibility vs probability.
I use ethanol to denature biofilms, and then hot water to continue the denaturing as I rinse it away.
So one will have to formulate the coating oneself.
US$100 / kilogram
https://www.amazon.com/Copper-Oxide-C...
I clean and sanitize household sanitary surfaces - bathroom, kitchen, scullery - daily, sanitize with Dimethyl Benzyl (and Ethylbenzyl) Ammonium Chloride wipes.