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Imperial begins South Asia search for women scientists in climate and energy | Imperial News

Engineering airflow to avoid spreading Covid

WASHINGTON, November 2, 2021 As we approach two full years of the COVID-19 pandemic, we now know it spreads primarily through airborne transmission

Surfaces can be designed with antiviral properties to mitigate COVID-19

 E-Mail IMAGE: Surfaces with taller and closely packed pillars with a contact angle of around 60 degrees show the strongest antiviral effect or shortest drying time. view more  Credit: S. Chatterjee, J.S. Murallidharan, A. Agrawal, and R. Bhardwaj WASHINGTON, May 4, 2021 If a respiratory droplet from a person infected with COVID-19 lands on a surface, it becomes a possible source of disease spread. This is known as the fomite route of disease spread, in which the aqueous phase of the respiratory droplet serves as a medium for virus survival. The lifespan of the respiratory droplet dictates how likely a surface is to spread a virus. While 99.9% of the droplet s liquid content evaporates within a few minutes, a residual thin film that allows the virus to survive can be left behind.

Coronavirus Survives Longer on Glass, Plastic Than on Cloth, Paper: IIT Bombay Study

Coronavirus survives longer on glass, plastic than on cloth, paper: IIT Bombay study | India News

NEW DELHI: The novel coronavirus may survive for far lesser time on porous surfaces such as paper and clothes than on impermeable surfaces like glass and plastic, a study by researchers from the Indian Institute of Technology (IIT) Bombay suggests. COVID-19, caused by the SARS-CoV-2 virus, is transmitted through respiratory droplets. The virus-laden droplets also form fomite upon falling on a surface, which serves as a source for infection spread. In the study, published in the journal Physics of Fluids, the researchers analysed the drying of droplets on impermeable and porous surfaces. They found that a droplet remains liquid for a much shorter time on a porous surface, making it less favourable to the survival of the virus.

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