A new study from Tel Aviv University shows that the COVID-19 virus “can be killed efficiently, quickly and cheaply using ultraviolet (UV) light-emitting diodes (UV-LEDs) at specific frequencies,” according to a report from The Jerusalem Post.
“We discovered that it is quite simple to kill the coronavirus using LED bulbs that radiate ultraviolet light,” said Professor Hadas Mamane, head of the Environmental Engineering Program at Tel Aviv University’s School of Mechanical Engineering. Mamane led the study with Professor Yoram Gerchman and Dr. Michal Mandelboim.
UV-LED bulbs require less than half a minute to destroy more than 99.9% of the coronavirus on surfaces, Mamane explained. An article detailing their study and its finding was published earlier this month in the Journal of Photochemistry and Photobiology B: Biology.
Ultraviolet wavelengths, available in LEDs as UV-A, UV-B, and UV-C, are very effective at disinfecting surfaces using UV-LED bulbs.
“We know, for example, that medical staff do not have time to manually disinfect, say, computer keyboards and other surfaces in hospitals – and the result is infection and quarantine,” said Mamane. “The 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.”
“We are also developing, together with a scientist in North Western University a transparent coating that can be dipped or sprayed on surfaces and can kill viruses using visible light LEDs that are not dangerous and are used everywhere, providing another application for regular LEDs,” Mamane added
“UV LEDs have a huge future,” she said. “Of course, as always, when it comes to ultraviolet radiation, it is important to make it clear to people that it is dangerous to try to use this method to disinfect surfaces inside homes. You need to know how to design these systems and how to work with them so that you are not directly exposed to the light.”
Matt Margolis is the author of the book Airborne: How The Liberal Media Weaponized The Coronavirus Against Donald Trump, and the bestselling book The Worst President in History: The Legacy of Barack Obama. You can follow Matt on Twitter @MattMargolis