UV lights that emit UV can kill new coronaviruses, scientists say

Researchers say ultraviolet (UV) diodes can effectively kill the new coronavirus

New York:

Ultraviolet (UV) diodes can destroy the new coronavirus efficiently, quickly and cheaply, according to a study that says the new innovation could be installed in air conditioning and water systems.

The research, published in the Journal of Photochemistry and Photobiology B: Biology, evaluated the effectiveness of disinfecting UV-LED irradiation at different wavelengths on a virus from the coronavirus family, which includes SARS-CoV-2 that causes COVID-19.

“The whole world is currently looking for effective solutions for coronavirus disinfection,” said Hadas Mamane, co-author of the study at American Friends of Tel Aviv University in the United States.

To disinfect a bus, train, gym or plane by chemical spraying, the scientists said that physical labor is needed along with time for the chemicals to act on the surface.

“Disinfection systems based on LED bulbs, however, can be installed in the ventilation system and in the air conditioner, for example, and sterilize the aspirated air and then emitted into the room,” Ms. Mamane said.

“We found it quite simple to kill coronavirus using LED bulbs that emit ultraviolet light. We killed viruses using cheaper and more readily available LED bulbs that consume less energy and do not contain mercury like regular light bulbs,” she added.


Scientists believe that research has commercial and societal implications, given the widespread use of these LED bulbs.

With the necessary adjustments, they said that the bulbs can be installed in air conditioning, vacuum and water systems and thus can be effectively disinfected large areas and spaces.

The researchers said the system should be designed so that a person is not exposed to direct light, adding that it is very dangerous to use the UV LED to disinfect the surfaces inside houses.

(This story was not edited by NDTV staff and is automatically generated from a syndicated stream.)