NEW YORK (NYTIMES) - As society tries to rebound from the coronavirus pandemic, some scientists hope a decades-old technology could zap pathogens out of the air in stores, restaurants and classrooms, potentially playing a key role in containing further spread of the infection.. Read more at straitstimes.com.
NEW YORK - As society tries to rebound from the coronavirus pandemic, some scientists hope a decades-old technology could zap pathogens out of the air in stores, restaurants and classrooms, potentially playing a key role in containing further spread of the infection.
This is not what President Donald Trump incomprehensibly described in April when he suggested irradiating the insides of Covid-19 patients with ultraviolet light. Ultraviolet light mangles the genetic material in pathogens - DNA in bacteria and fungi, RNA in viruses - preventing them from reproducing.
For that reason, germicidal fixtures employ wavelengths of light known as UVC that are shorter than UVA and UVB. The shorter wavelengths mean that the particles of light, or photons, are of higher energy. "Historically, it's been homeless shelters and medical centres," said Mr Daniel Jones, president of UV Resources of Santa Clarita, California, a manufacturer of the fixtures used by the airport. Sales are up tenfold in the past month."The demand is through the roof," he said.
Scientists are now also exploring what is called far UVC - an even shorter, higher energy wavelength - that appears to be even safer and which could be used to bath a room continuously, disinfecting surfaces in addition to destroying pathogens in the air. Manufacturers are just beginning to ramp up production of far UVC fixtures.
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