{"id":121753,"date":"2021-04-20T10:24:12","date_gmt":"2021-04-20T17:24:12","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2021\/04\/ultraviolet-led-maker-demonstrates-30-second-coronavirus-kill"},"modified":"2021-04-20T10:24:12","modified_gmt":"2021-04-20T17:24:12","slug":"ultraviolet-led-maker-demonstrates-30-second-coronavirus-kill","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2021\/04\/ultraviolet-led-maker-demonstrates-30-second-coronavirus-kill","title":{"rendered":"Ultraviolet-LED Maker Demonstrates 30-Second Coronavirus Kill"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/ultraviolet-led-maker-demonstrates-30-second-coronavirus-kill3.jpg\"><\/a><\/p>\n<p>Circa 2020<\/p>\n<hr>\n<p>\n<a href=\"https:\/\/spectrum.ieee.org\/automaton\/robotics\/medical-robots\/autonomous-robots-are-helping-kill-coronavirus-in-hospitals\">Robots<\/a> and <a href=\"https:\/\/spectrum.ieee.org\/tech-talk\/aerospace\/aviation\/germfalcon-coronavirus-airplane-ultraviolet-sterilizer-news\">stranger machines<\/a> have been using a particular band of ultraviolet light to sterilize surfaces that might be contaminated with coronavirus. Those that must decontaminate large spaces, such as hospital rooms or aircraft cabins, use large, power-hungry mercury lamps to produce ultraviolet-C light. Companies around the world are working to improve the abilities of UV-C producing LEDs, to offer a more compact and efficient alternative. Earlier this month, <a href=\"http:\/\/www.seoulviosys.com\/en\/\">Seoul Viosys<\/a> showed what it says is the <a href=\"https:\/\/www.businesswire.com\/news\/home\/20200402005348\/en\/Seoul-Viosys-SETi%E2%80%99s-Violeds-Technology-Proves-99.9\">first 99.9 percent sterilization of SARS-COV-2<\/a>, the coronavirus that causes COVID-19, using ultraviolet LEDs.<\/p>\n<p>UV LEDs are deadly to viruses and bacteria, because the 100\u2013280 nanometer wavelength C-band shreds genetic material. Unfortunately, it\u2019s also strongly absorbed by nitrogen in the air, so sources have to be powerful to have an effect at a distance. (Air is such a strong barrier, that the sun\u2019s UV-C doesn\u2019t reach the Earth\u2019s surface.) Working with researchers at <a href=\"http:\/\/www.korea.edu\/\">Korea University, in Seoul<\/a>, the company showed that its Violed LED modules could eliminate 99.9 percent of the SARS-COV-2 virus using a 30-second dose from a distance of three centimeters.<\/p>\n<p>Unfortunately, the company did not disclose how many of its LEDs were used to achieve that. Assuming that it and the university researchers used a single Violed <a href=\"https:\/\/spectrum.ieee.org\/tech-talk\/semiconductors\/optoelectronics\/ultravioletled-maker-demonstrates-30second-coronavirus-kill\/file:\/\/\/Users\/skmoore\/Downloads\/CMD-FSC-CO1A.pdf\">CMD-FSC-CO1A integrated LED module<\/a>, a 30-second dose would have delivered at most 600 millijoules of energy. This is somewhat in-line with expectations. A <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC7115285\/\">study of UVC\u2019s ability to kill influenza A viruses on N95 respirator masks<\/a> indicated that about 1 joule per square centimeter would do the job.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Circa 2020 Robots and stranger machines have been using a particular band of ultraviolet light to sterilize surfaces that might be contaminated with coronavirus. Those that must decontaminate large spaces, such as hospital rooms or aircraft cabins, use large, power-hungry mercury lamps to produce ultraviolet-C light. Companies around the world are working to improve the [\u2026]<\/p>\n","protected":false},"author":513,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,412,6],"tags":[],"class_list":["post-121753","post","type-post","status-publish","format-standard","hentry","category-biotech-medical","category-genetics","category-robotics-ai"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/121753","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/513"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=121753"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/121753\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=121753"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=121753"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=121753"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}