Researchers at IIT Guwahati are developing coatings that transform any cloth into a Covid-19 mask.

Researchers at the Indian Institute of Technology Guwahati have found that “nanometer-thick ultrahydrophobic coatings” enhance protection against infections from aerosols such as COVID-19 while modifying regular cloth and silk masks to maintain comfort. I have developed a material.

According to World Health Organization (WHO) guidelines, N95 masks or double masking greatly protect people from the coronavirus. However, many people who wear these masks complain that they are choking after wearing them for a long time. What’s more, the N95 is expensive and therefore not affordable for most of the population. Instead, people rely on cheaper and more readily available cloth and silk masks.

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To address these challenges and provide a safer, more economical and comfortable alternative, IIT Gwahati researchers have replaced readily available cloth masks with hydrophobic masks to replace virus-containing droplets. We have developed a coating material that repels and avoids breathing difficulties even when worn for a long period of time. Another advantage is that these masks are versatile and can be used with other additives such as antibacterial nanomaterials for additional protection against viruses.

The study was led by Professor Arun Chattopadhyay of IIT Guwahati’s Center for Chemistry and Nanotechnology and Dr. Partho SG Padtader of the Department of Chemistry and Engineering, Faculty of Health Sciences and Technology of IIT Guwahati.

Emphasizing a unique aspect of this study, Professor Arun Chattopadhyay said: They are still better than not wearing a mask, but they needed an improved version to prevent aerosols from entering and exiting the modified cloth mask. While flowing air through the mask, we have been working on the principle of aerosol repulsion by the modified cloth. A simple coating of hydrophobic molecules on silk cloth worked well here. “

The team tested the breathability of the newly developed mask by measuring the oxygen permeability through the mask using a device called gas chromatography. Oxygen penetration was reduced by only 22% in the improved Elysyl mask compared to the natural Elysyl mask, compared to about 59% in the N95 compared to the natural Elysil. Therefore, studies claim that the improved silk mask is much more breathable than the N95 mask, but has about the same protection against aerosol infections.

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Prelonagogoy, a student at the IIT Gwahati School of Chemical Engineering, sheds light on the use of Elysil, said: “We chose Elysilk to carry out this study. This silk comes from the caterpillar Samiaricini, which grows naturally in northeastern India and parts of China and Japan. This is an inexpensive manufacturing process and these masks. Helps with mass production and distribution to the majority of the population, “added Gogoi.

Sustainable, durable and durable, also known as the fabric of peace, Elisilk is softer than many other silks and cottons and has the unique property of keeping you cool in the summer and warm in the winter. The researchers said they were.

Regarding the function of the mask, Dr. Partho SG Pattader of the Department of Chemical Engineering and Nanotechnology Center, Faculty of Health Science and Technology, IIT Gwahati, said: A coating of a chemical called octadecyltrichlorosilane (OTS). OTS is a fluorine-free chemical after it has been glued to the fabric, so it does not harm your health or the environment. And the good part is that the cloth / silk mask remains comfortable and breathable even after nan coating. “

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Researchers at IIT Guwahati are developing coatings that transform any cloth into a Covid-19 mask.

Source link Researchers at IIT Guwahati are developing coatings that transform any cloth into a Covid-19 mask.

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