A pathogen-killing light fixture developed at the University of Strathclyde in Glasgow, Scotland has been made into a product that is now being introduced in hospitals in the U.S. and Canada. The Indigo-Clean, made by Kenall Manufacturing out of Kenosha, Wisconsin, inactivates a wide range of micro-organisms that are known causes of HAIs, including MRSA (Methicillin-resistant Staphylococcus aureus), C.difficile and VRE (Vancomycin-resistant Enterococcus).
The new technology is installed into the ceiling like any other light fixture and when activated emits light at a wavelength of 405 nm. The indigo light, not quite in the range of the more dangerous ultraviolet light, causes bacteria to produce reactive oxygen species, halting their growth and reproductive abilities.
While brand new in the U.S. and Canada, Strathclyde’s technology has been in use since 2008 at Glasgow Royal Infirmary, a large teaching hospital operated by NHS (National Health Service) Greater Glasgow and Clyde. The technology and its effectiveness have been the subject of more than 20 peer-reviewed academic publications and 30 conference presentations since 2008, and was voted U.K. Research Project of the Year in 2011.