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Facial Masks Become Forms of Expression – NBC4 Washington | Instant News


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The current COVID-19 pandemic has many similarities with the Spanish Flu Pandemic of 1918-20, and many differences | Instant News

Today’s COVID-19 Pandemic Has Many Similarities to the Spanish Flu Pandemic of 1918-20, and Many Differences Also | RiverBender.com


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University of Michigan Makes Plasma Jet Sticks That Can Quickly Disinfect Hospitals | Instant News

The professor of engineering at the University of Michigan is developing an ion transmitter stick that can quickly decontaminate hospitals and other public places. Plasma rays can quickly kill viruses and bacteria in seconds.

(Photo: University of Michigan Engineering / Youtube)
plasma jet video screenshot

This Ghostbusters proton-pack-like stick can easily disinfect such hard surfaces alcohol and bleach, although this technique cannot be used on cloth unless it is washed or soaked in solution.

On the other hand, plasma is a dry approach without residue, so it can also be used in soft materials such as seat covers and bedding.

Cold plasma jet

John Foster, a professor of nuclear engineering and radiology, said that unlike detergents who need to wait for 5 to 10 minutes sitting on the surface before reacting to pathogens, plasma clean up in a flash.

“With plasma, this gas is so reactive that you only need a few seconds of contact between the plasma and the surface to decontaminate,” Foster said.

Currently, soft materials in hospitals are locked in special cabinets that use toxic gases such as ethylene oxide or hydrogen peroxide to disinfect.

Mirko Gamba, an aerospace engineering professor, explains how plasma jets can easily clean hospitals: “[We] proposing a handheld device so that users can shine on the surface, “Gamba said.

The device generates plasma by running gases such as air through a high electric field. This field then tore electrons and tore molecules, creating a collection of charged atoms and fragments of molecules that came out at the end of the stick.

Like burning, plasma destroys bacteria and viruses with oxygen-based ions that pull carbon out of the cell wall or cell protein. However, with such strength, it takes 10 seconds before it can kill healthy cells – in case someone puts a hand in the plasma plume.

Plume plasma is a mixture of ordinary old air with a little moisture. “Hydroxyl radicals attack organic molecules, decompose them into carbon dioxide and water,” Foster said.

Meanwhile, they think that this can also be used to target certain viruses or bacteria by adding chemicals to the gas.

As such, they aim to spread the plasma stick towards the end of the coronavirus pandemic, but may not be ready for at least a year. When available, it may also be used outside the hospital such as on airplanes or buses.

NSF grants

This project has quickly received funding from the National Science Foundation.

Foster, Gamba, and Mark Kushner, a professor of electrical engineering and computer science, said they would use grants to test the concept of portable plasma disinfectants and rush to make prototypes.

One of the first orders from the business is to explore fragments of reactive molecules in plasma and find out how effective they are at killing pathogens. Plasma can then be adjusted to contain more fragments that are most effective.

They also want to characterize the UV rays produced in plasma, which can also kill pathogens and break their genetic code.

Once they know the lever is important to adjust the plasma to kill various types of pathogens, they hope that the concept can be licensed. The company already has experience designing a power system that will fit into a backpack.

Although the product may not be ready for another year, the goal is to spread it towards the end of the current pandemic because COVID-19 is considered a threat until 2022.

Meanwhile, University of Michigan scientists have also developed a portable helmet system which turns a hospital bed into a negative pressure chamber, protecting the caregiver and saving the ventilator.

Also read: NEWS BREAK: COVID-19 has mutations into more than 30 strains, says the latest study in China; Will the Vaccine Still Function?

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