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An innovative, green, novel antimicrobial air filtration technology can mitigate air-borne infection

Newdelhi:17/12/22:A newly developed air filter can deactivate the germs ‘self-cleaning’ them out of the system using ingredients commonly found in green tea.

Impure air might make our life shorter, to the extent that Indians lose 5-10 years of their lives because of air-borne contaminants leading to respiratory diseases, adversely affecting physical health as well as mental health according to a report by University of Cigaco.

A research team led by Prof Suryasarathi Bose and Prof Kaushik Chatterjee at Indian Institute of Science, Bengaluru (IISc), Bangalore, developed germ-destroying air filters that can inactivate germs using ingredients like polyphenols and polycationic polymers commonly found in green tea. These ‘green’ ingredients rupture the microbes through site-specific binding.

The research was supported by special grants from Science & Engineering Research Board (SERB) during the challenging COVID-19 pandemic and SERB-Technology Translation Awards (SERB-TETRA) funds and a patent has been filed on this

Over continuous usage, the existing air filters become a breeding ground for captured germs. The growth of these germs clog the pores of the filter, reducing the life of the filters. Resuspension of these germs can infect people in the vicinity. The novel antimicrobial air filters were tested at the NABL Accredited Laboratory and were found to deactivate SARS-CoV-2 (delta variant) with an efficiency of 99.24%. This technology was transferred to AIRTH, a startup that is replacing the existing germ-growing air filters with germ-destroying air filters for commercialization.

As this innovation holds promise to develop antimicrobial filters that can prevent endemics caused by air-borne pathogens, a patent was granted in 2022. These novel antimicrobial filters in our ACs, central ducts and air purifiers can play a crucial role in our fight against air pollution and mitigate the spread of air-borne pathogens like coronaviruses.


About Editor in chief

Ashok Palit has completed his graduation from Upendranath College Soro, Balasore and post graduation from Utkal University in Odia Language and literture.. He has also carved out a niche for himself as a scribe of eminence after joining the profession in 1988. He is also an independent media production professional. He brings loads of experience to Advanced Media, Ashok Palit as a cineaste has been active in film criticism for over three decades. As a film society activist, he soared to eminence for his profound commitment to the art film appreciation and aesthetics of cinema. His mode of discourse is often erudite but always lucid and comprehensible marked by a perfect acumen so rare in the field. A film aesthete with an immense fond of critical sensibilities, he wrote about growth and development of odia cinema in New Indian Express, The Times of India, The Hindustan Times, The Asian Age and Screen. He has been working as an Editor for Cine Samaya from 2002-2004.. He had made solid contribution on cinema in many odia Dailies and weekly such as Samaj, Prajatantra, Dharatri, Samaya, Satabadi, and weekly Samaya.

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