Canadian researchers are developing ways to improve the reusability of PPE


Researchers at Simon Fraser University (SFU) and the University of Victoria (UVic) have found a way to process and safely sterilize non-woven polypropylene fabrics used in the manufacture of personal protective equipment (PPE). Use only visible light. Researchers led by former SFU student Tyler Cuthbert tested how chemicals were inserted.

This insertion method was developed by Jeremy Wulff, a professor of UVic chemistry, and adhered a photosensitive zinc-based compound to a polypropylene non-woven fabric. SFU’s health science colleagues Siobhan Ennis and Masahiro Niikura announced in a press release after treating a small amount of the known infectious virus influenza A and then exposing it to high-intensity visible light for approximately 4 hours.

After exposure to light, researchers found that the treated sheet inactivated 99.99 percent of influenza A virus particles compared to controls. Influenza A has a proof of concept because its envelope structure and RNA genome are similar to SARS-CoV2, the virus responsible for the current global COVID-19 pandemic. Selected as a virus.

Similarly, influenza A itself is a likely pathogen for a pandemic. In fact, the influenza A strain was responsible for the 2009-10 H1N1 swine flu pandemic.

“This work has the potential to reduce the environmental impact of large companies that produce billions of non-recycled disposable PPE products annually,” he said. Tyler CuthbertI am currently in Eidgenössische Technische Hochschule in Zurich.

“Ideally, PPE sterilization should be easy and accessible, so that healthcare professionals everywhere, including remote communities, have global shortages and supply chain disruptions. Nevertheless, we have access to safe and sterilized PPE, “explains Cuthbert.

according to UVic Chemistry Professor Jeremy WolfThe covalent bond approach is ideal for use with PPE. “When a photosensitizer is applied to a PPE fabric using covalent bonds, it does not seep out of the material, is safe to use and lasts a long time. This process adds bulk and affects the existing properties of the material. The compound can also be integrated into the PPE fabric without giving. “

Cuthbert hopes that this proof-of-concept study will pave the way for the development of PPEs that can provide healthcare providers with stronger protection against aerial pathogens, opening up the possibility of device extension or reuse. is. This is a particularly attractive feature for resource-poor medical teams. Configuration.

“PPE must not reduce or direct the level of care that can be provided to the patient. Ideally, the threat of pathogen migration and infection is eliminated by introducing materials that are continuously sterilized. This can improve the overall care of the hospital, especially in units that rely on and require PPE, such as the N95 Respirator, “explains Cuthbert.

Researchers push the boundaries of new treated fabrics by studying how fabrics work against different types of pathogens, activate under different light intensities, and respond to laundry and detergents. We plan to investigate further.

Fiber2Fashion News Desk (RR)

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Canadian researchers are developing ways to improve the reusability of PPE

Source link Canadian researchers are developing ways to improve the reusability of PPE

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