UV-Emitting LED Lights Can Kill New Coronavirus, Scientists Say

Researchers say Ultraviolet (UV) light emitting diodes can kill new coronaviruses effectively

New York:

Ultraviolet (UV) light emitting diodes (UV-LEDs) can kill the new coronavirus effectively, quickly and cheaply, according to a study that says the new innovation could be installed in air conditioners and water systems.

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

“The whole world is currently looking for effective solutions to disinfect the coronavirus,” said Hadas Mamane, co-author of the study by the American Friends of Tel Aviv University.

To disinfect a bus, train, gym, or airplane by chemical spraying, the scientists said 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 air conditioner, for example, and sterilize the air sucked in and then emitted into the room,” Ms Mamane said.

“We found that it’s pretty simple to kill the coronavirus with LED bulbs that radiate ultraviolet light. We killed the viruses with cheaper and more readily available LED bulbs that consume little energy and don’t contain mercury like regular light bulbs,” she said. added.


The scientists believe the research has commercial and social implications, given the widespread use of such LED bulbs.

With necessary adjustments, they said the light bulbs can be installed in air conditioners, vacuum and water systems, and thus be able to effectively disinfect large surfaces and spaces.

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

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