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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 ....

United States , Krishnendu Sinha , Mani Shankar Yadav , Utkarsh Verma , Janani Srree Murallidharan , Vivek Kumar , Indian Institute Of Technology Bombay , Indian Institute ,

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


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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.
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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. ....

United States , Rajneesh Bhardwaj , Janini Murallidharan , Sanghamitro Chatterjee , Amit Agrawal , Janani Srree Murallidharan , ஒன்றுபட்டது மாநிலங்களில் , ரஜ்னீஷ் பரத்வாஜ் ,

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. ....

Rajneesh Bhardwaj , Sanghamitro Chatterjee , Amit Agrawal , Janani Srree Murallidharan , Indian Institute Of Technology , Indian Institute , India News , India News Today , Today News , Google News , Breaking News , Co Vid , ரஜ்னீஷ் பரத்வாஜ் , இந்தியன் நிறுவனம் ஆஃப் தொழில்நுட்பம் , இந்தியன் நிறுவனம் , இந்தியா செய்தி , இந்தியா செய்தி இன்று , இன்று செய்தி , கூகிள் செய்தி , உடைத்தல் செய்தி , இணை வித் ,