Novel coronavirus can last 28 days on glass, currency - Coronavirus & Surfaces

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Joined: Fri Jun 26, 2020 5:22 am

Re: Novel coronavirus can last 28 days on glass, currency - Coronavirus & Surfaces

Post by trader32176 »

Developing antimicrobial products with resistance to coronavirus

12/9/20 ... virus.aspx

(This article is for informational purposes only)

Due to the ongoing COVID-19 pandemic, there is a need to stop the spread of the virus. What provoked your research into helping stop the spread of coronavirus?

Every crisis triggers innovation and this pandemic has seen an abundance of that from businesses and individuals all over the world.

Scientific data revealed that this virus in particular was highly contagious on touch. These high-touch areas like doors, handles, rails, screens, and buttons acted like a super spreader.

This drove us to conduct our own R&D. We set the team a challenge that answered 4 briefs. It must be safe in technology, visible in the design, affordable to roll out, and scalable to deliver on mass.

In our everyday lives, we touch many contact points that other people may have touched including door handles and shopping baskets. Why is it important to ensure the safety of frequently touched surfaces?

We know from scientific data that touchpoints spread viruses and bacteria but yet they are an unavoidable part of our daily lives. This pandemic alongside facts released on how many germs were on shopping trolly handles, door handles and screens has created a wave of cautiousness and anxiety.

Even with everyone's best efforts to clean regularly, it is not feasible or viable for that to be regular enough (which needs to be after every use). Our products exist to support regular cleaning helping deliver better hygiene standards moving forward.

Do you believe that since research has shown that coronavirus can survive on surfaces for a number of days, people have become more aware of the number of surfaces they touch and come into contact with?

This pandemic has changed societal behavior. I believe that we have all learned to become far more hygiene conscious and aware and I do not think this is going to change.

Consumer's and employee's expectations have changed too as they demand businesses and governments go above and beyond the standard measures and offer additional protection. The feedback we have had is that people would feel more confident, at ease, and have more peace of mind if they opened a door with a protective cover installed.

Can you describe the products you have designed to stop the spread of viruses including coronavirus? How do these products work?

We have designed a range of antimicrobial self-adhesive products for frequently touched surfaces. How they work is quite simple, they stop the reproduction of bacteria on surfaces. The technology inhibits microbial growth to reduce the spread of bacteria, fungi, and certain viruses. It works by breaking down their biological makeup to stop the reproduction of dangerous pathogens.

Our products have undergone BS ISO testing in accordance with BS ISO 21702 2019 & 22196 killing up to 99.9% of common bacteria and also tested against a strain of Coronavirus.

All of your products contain silver antimicrobial technologies. How does this technology work to kill germs on touch?

Silver antimicrobial technology punch holes in bacterial membranes, breaking down their structure and rendering them redundant. It is worth noting that antimicrobial technology is not new and exists in surgical environments to protect critical touchpoints.

However, one outcome of this pandemic is that all public touchpoints are now critical touchpoints. This highly effective technology now has a much broader role in society which Veraco is leading.

What are the benefits of your product range?

A critical and key benefit of our product is that they work continuously. For example, a self-service touch screen could not feasibly be cleaned after each use, so our Safe Screen cover provides security in between cleaning.

Other practical benefits are that these products are affordable, long-lasting, and customizable. We have a range of standard sizes but we can also create completely bespoke designs to protect almost any touchpoint.

Do you believe that if we could kill viruses that are living on frequently touched surfaces, we could limit the spread of COVID-19?

As we know this virus in particular is spread by touch so any product that minimizes the risk of cross-contamination will have a positive impact.

Why is having a standardized hygiene measure for frequently touched surfaces so important? If we had a standardized procedure, would the chances of another virus outbreak be potentially lower?

We see products like ours, alongside good hand hygiene and regular cleaning, becoming the new standard. In a post covid world we are going to be far more hygiene conscious.

The insight we have taken from this is that people not only want extra protection but will expect this and will choose brands that do this over those that do not.

What are the next steps for Veraco?

We are continuing our expansion plans across Europe, the US, and the GCC. Our product innovation team has a 12-month development plan to fulfill. We have got some exciting new products on the horizon which will be announced in due course.

A new product we have only just released is our Safe Screen range of antimicrobial optically clear touch screen covers - available now to order. We see this as the perfect product for inflight entertainment systems, kiosks, ATM’s, Supermarket self-checkout tills, as well as protecting staff behind the tills that are all touch screen nowadays.
Posts: 1519
Joined: Fri Jun 26, 2020 5:22 am

Re: Novel coronavirus can last 28 days on glass, currency - Coronavirus & Surfaces

Post by trader32176 »

Israel installs LED Lights, Which Can Kill COVID in Less Than 30 Seconds, in Water, Air-Conditioning and Vacuum Systems

Dec 14, 2020 ... m-systems/

It hasn’t proven easy to destroy COVID-19 in patients. But it is possible to destroy the new Coronavirus in the environment using ultraviolet LED (light-emitting diode) lights, which disinfect it in less than 30 seconds and can be installed in water, air-conditioning and vacuum systems and will soon be available for private and commercial use, according to say Tel Aviv University (TAU) researchers.

Using UV-LED irradiation at different wavelengths

Their study, just published in the Journal of Photochemistry and Photobiology B: Biology under the title “UV-LED disinfection of Coronavirus: Wavelength effect,” was the first in the world on the disinfection efficiency of a virus from the family of coronaviruses using UV-LED irradiation at different wavelengths or frequencies.

It was headed by Prof. Hadas Mamane, head of TAU’s environmental engineering program at the School of Mechnical Engineering of the Fleischman Faculty of Engineering and conducted in collaboration with Prof. Yoram Gerchman of Oranim College, Dr. Michal Mandelboim (the director of the National Center for Influenza and Respiratory Viruses at Sheba Medical Center at Tel Has homer; and Nehemya Friedman at Sheba.

A length of 285 nanometers

SARS-CoV-2, the causal agent of COVID-19, is not only contagious through respiratory droplets, but can also spread through nasal, oral and eye mucus-contaminated surfaces, the team wrote “Moreover, it has recently been suggested that SARS-CoV-2 could be airborne, although clear evidence for such transmission has not yet been presented. Furthermore, SARS-CoV-2’s ability to survive in aerosols for at least 3 hours and up to 72 hours on plastic surfaces was recently demonstrated, suggesting long-term infection risks.”

In the study, the researchers tested the optimal wavelength for killing the coronavirus and found that a length of 285 nanometers was almost as efficient in disinfecting the virus as a wavelength of 265 nanometers, requiring less than half a minute to destroy more than 99.9% of the coronaviruses.

Effective solutions to disinfect the coronavirus

This result is significant because the price of 285 nm LED bulbs is much cheaper than that of 265 nm bulbs, and the former are also more readily available. Eventually, as the technology progresses, the industry will be able to make the necessary adjustments and install the bulbs in robotic systems or air conditioning, vacuum, and water systems and thus be able to disinfect large surfaces and spaces efficiently. Mamane believes that the technology will be available for use in the near future.

“The entire world is currently looking for effective solutions to disinfect the coronavirus,” said Mamane. “The problem is that to disinfect a bus, train, sports hall or plane by chemical spraying, you need physical manpower and for the spraying to be effective, you have to give the chemical time to act on the surface. We know, for example, that medical staff do not have time to manually disinfect computer keyboards and other surfaces in hospitals, for example – and the result is infection and quarantine. The disinfection systems based on LED bulbs, however, can be installed in the ventilation system and air conditioner and sterilize the air sucked in and then emitted into the room.”

Patenting a combination of different UV frequencies

She continued that it was quite simple to kill the coronavirus using LED bulbs that radiate ultraviolet light. “But no less important, we killed the viruses using cheaper and more readily available LED bulbs, which consume little energy and do not contain mercury as do regular bulbs. Our research has commercial and societal implications, given the possibility of using such LED bulbs in all areas of our lives safely and quickly. Of course, as always when it comes to ultraviolet radiation, it is important to make it clear to people that it is dangerous to try to use this method to disinfect surfaces inside homes. You need to know how to design these systems and how to work with them so that you are not directly exposed to the light.”

Ultraviolet radiation is a common method of killing bacteria and viruses, and most of us are familiar with such disinfecting bulbs from their use in water purifiers, such as Tami4. UV radiation damages nucleic acids. Last year, a team of researchers led by Mamane and Gerchman patented a combination of different UV frequencies that cause dual-system damage to the genetic load and proteins of bacteria and viruses, from which they cannot recover-which is a key factor that is ignored.

“In the future,” concluded Mamane, “we will want to test our unique combination of integrated damage mechanisms and more ideas we recently developed on combined efficient direct and indirect damage to bacteria and viruses on different surfaces, air and water.”
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Joined: Fri Jun 26, 2020 5:22 am

Re: Novel coronavirus can last 28 days on glass, currency - Coronavirus & Surfaces

Post by trader32176 »

Researchers produce lightweight grab-poles with anti-microbial property for public transport

1/13/21 ... sport.aspx

Since the beginning of the Covid-19 pandemic many people have been, or may feel, hesitant about taking public transport, due to the perceived risk of picking up germs from areas such as the grab-poles on trains, buses and trams, which are the principal point of contact.

However, a team including researchers from WMG at the University of Warwick, product designers Transport Design International (TDI), anti-microbial additive developers BioCote and Promethean Particles and the Health and Safety Executive (HSE), led by Derby-based manufacturers Composites Braiding Ltd (CBL), will produce lightweight composite grab-poles with an embedded anti-microbial property in their project AMICABLE, thanks to a £480,000 award from the Innovate UK Smart Grant scheme.

The anti-microbial grab poles will be for use in a wide range of public transport applications, such as bus, tram, rail and underground. This should lead to a step-change in hygiene in public transportation and a reduction in transmission of infections of various origins.

Although researchers are currently focusing on public transport applications, there could be the potential for the materials to be used on cruise ships, medical furniture or wherever there are public-facing surfaces.

The teams, from WMG, CBL and TDI have previously worked together on making the materials for the Coventry Very-Light Rail system, and using their expertise from previous projects and concepts already developed for anti-microbial efficacy in sectors such as food packaging and healthcare, they hope to make the new grab-poles within the next 12 months. At the project completion there is an opportunity to demonstrate, for the first time, the new grab-poles directly within new prototype vehicles such as Revolution VLR and the Coventry Light Rail system.

The poles themselves will be retro-fittable, so not only can they be fitted into new vehicles, they can replace current steel poles in existing ones such as buses and the Underground. The project aims to make a range of poles at costs competitive to the current steel ones, however, due to their light-weight material they will be around a third of the weight and will also help with meeting decarbonization goals by aiding fuel efficiency and manufacturing via lower carbon methods.

" As we work in developing future public transport solutions such as the Coventry Very-Light Rail system, the Covid-19 pandemic opened our eyes to the importance of also making transport as clean an environment as possible for passengers. It is clear that a key point of contact for passengers is the grab-poles and other similar structures. Therefore, incorporating anti-microbial grab poles into vehicles could encourage more people to opt for public transport which is generally an environmentally efficient mode of transport."

- Dr Darren Hughes, WMG, University of Warwick

James Taylor, from TDI comments:

"TDI specializes in the design of very light weight vehicles and products so the introduction on this new anti-microbial technology in thermoplastic composites for compliant new vehicle interior products is an extremely exciting opportunity"

Steve Barbour, of Derby-based specialists in thermoplastic braiding CBL adds:

"Using in-mold coating impregnation and fiber commingling techniques, anti-microbial particles will be incorporated into the composite rails during the molding process. Importantly, as the anti-microbial material will be applied during manufacture, it becomes a permanent part of the structure and therefore is expected to be less susceptible to wear. However, when it does reach the end of its life the thermoplastic matrix material will be inherently recyclable, making the grab-poles environmentally friendly."


University of Warwick
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