博文

Safety of 222 nm UVC irradiation to the surgical site in a rabbit model

  Safety of 222 nm UVC irradiation to the surgical site in a rabbit model The research group of Ushio, Inc. (Headquarters: Tokyo, President Koji Naito) and Department of Orthopedic Surgery, Graduate School of Medicine, Kobe University (Professor Ryosuke Kuroda, Associate Professor Takahiro Niikura, Assistant Professor Tomoaki Fukui) To investigate whether 222 nm UV radiation can be used to reduce intraoperative infections in the field of orthopedics, rabbits were used to irradiate five types of tissue that could be exposed to the surgical field with 222 nm or 254 nm UV radiation to immunize against DNA damage. We conducted an orthopedic evaluation. As a result, in the tissues collected 1 hour after UV irradiation, many CPDs (markers of UV-induced DNA damage) were found in each tissue in the 254 nm irradiation group, but in the 222 nm irradiation group, only adipose tissue was not irradiated. Although it increased with respect to the group, there was no significant difference from t...
发表评论
阅读全文

UV-LED coating effectively self-disinfects surfaces

图片
 An ultrathin coating has been formulated at Purdue University to improve the level of disinfection on hospital Some hospitals use UV light devices to kill germs to disinfect rooms in hospitals. But these devices cast shadows, which can allow germs to grow. The new ultra-thin coating includes UV LEDs and could be integrated into materials. Source: Associated Press/Ryan Brennecke/The Bulletin Some hospitals use UV light devices to kill germs to disinfect rooms in hospitals. But these devices cast shadows, which can allow germs to grow. The new ultra-thin coating includes UV LEDs and could be integrated into materials. Source: Associated Press/Ryan Brennecke/The Bulletin surfaces. Designed to combat the growing epidemic of antibiotic resistance, the coating is infused with ultraviolet (UV) light-emitting diodes (LEDs), or UV-LEDs, to disinfect any surface capable of harboring bacteria and viruses. Advanced disinfection technologies include germ-zapping robots delivering high-intensit...
发表评论
阅读全文

UV light most effective at killing coronavirus is also the safest to use around people

图片
 Perhaps you have seen UV wands, UV LEDs and UV air purifiers advertised as silver bullets to protect against the coronavirus. While decades of research have looked at the ability of UV light to kill many pathogens, there are no set standards for UV disinfection products with regard to the coronavirus. These products may work to kill SARS-CoV-2, the virus that causes COVID-19, but they also may not. My Artemis Far UV-C Disinfection Devices UV-Lunar222 Learn More I am an environmental engineer and expert in UV disinfection. In May 2021, my colleagues and I set out to accurately test various UV systems and see which was the most effective at killing off – or inactivating – SARS-CoV-2. How does UV light kill a virus? A diagram showing UV light breaking down a strand of DNA. A diagram showing UV light breaking down a strand of DNA. Light is categorized by wavelength – the distance between peaks of a wave of light – and is measured in nanometers (nm). UV wavelengths range from 100 nm to...
发表评论
阅读全文