UVC has been on the forefront of major disinfecting technology being deployed to eliminate hardest of bacteria, Viruses, including superbugs.
UV-C light is the new hope against epidemics and multidrug resistant bacterial infections. It has been in use, and trusted by Medical Community over a century.
Discovered in 1877 and first use of low pressure lamp at 254 nm established in 1930
Reports have demonstrated that UVC efficiently inactivated methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant Enterococcus faecalis (VRE), antibiotic-susceptible strains of E. faecalis and S. aureus [5], Enterococci species, Streptococcus pyogenes [6], Escherichia coli and Pseudomonas aeruginosa in vitro [7]. UVC irradiation was able to disinfect catheters by destroying associated bacterial biofilms, including coagulase-negative Staphylococcus, Streptococcus, E. coli, E. faecalis, P. aeruginosa, Coryneforms and so on [8].
UVC also inactivated 3–5 log10 of dermatophyte suspensions in vitro, including Trichophyton mentagrophytes, Trichophyton rubrum, Microsporum canis and Epidermophyton floccosum [9]. When the inactivation efficacies of UVC were compared on pathogenic microorganisms, including bacteria (P. aeruginosa and Mycobacterium abscessus) and fungi (Candida albicans, Aspergillus fumigatus), in both mixed suspensions and single suspensions in vitro, it needed much higher fluences to kill fungi than bacteria [10]. The diverse structural features of the cell walls of bacteria and fungi are the main reason for the different killing rates. Different devices that deliver UVC with different power densities also induced different outcomes. More details about UVC germicidal efficacies are presented in .
References
UV light can aid hospitals' fight to wipe out drug-resistant superbugs -- ScienceDaily Summary - A new tool -- a type of ultraviolet light called UVC -- could aid hospitals in the ongoing battle to keep drug-resistant bacteria from lingering in patient rooms and causing new infections.
Can UV Light Fight the Spread of Influenza? | Columbia University Irving Medical Center.... fighting Influenza
Light based anti-infectives: ultraviolet C irradiation, photodynamic therapy, blue light, and beyond (nih.gov) ...great study of UVC effect on pathogens
PubMed Central, Table 1: Curr Opin Pharmacol. 2013 Oct; 13(5): 10.1016/j.coph.2013.08.009. Published online 2013 Sep 20. doi: 10.1016/j.coph.2013.08.009 (nih.gov) .... table - study of UVC effect on few known pathogens
How UV Kills Germs - Violet Defense.... a company since 2012 in UVC based disinfection products
Lethal effects of short-wavelength visible light on insects (nih.gov).... even kills few insects
Narrow wavebands of UV light kill germs -- ScienceDaily.... While awaiting full access to their labs due to COVID-19 restrictions, scientists at the NIST have taken this rare opportunity to report the technical details of pioneering research they conducted on the disinfection of drinking water using ultraviolet (UV) light.
UVC Technology | How Does UV-C Light Clean? – PhoneSoap.... interesting video of killing germs on phone using UV-C LED case
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