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A low-pressure mercury-vapor discharge tube floods the inside of a biosafety cabinet with shortwave UV light when not in use, killing microbes on irradiated surfaces. Ultraviolet germicidal irradiation (UVGI) is a disinfection technique employing ultraviolet (UV) light, particularly UV-C (180–280 nm), to kill or inactivate microorganisms.
A germicidal lamp (also known as disinfection lamp or sterilizer lamp) is an electric light that produces ultraviolet C (UVC) light. This short-wave ultraviolet light disrupts DNA base pairing, causing formation of pyrimidine dimers, and leads to the inactivation of bacteria, viruses, and protozoans. It can also be used to produce ozone for ...
Germicidal UV-C light in the short wavelength range of 100–280 nm acts on thymine, one of the four base nucleotides in DNA. When a germicidal UV photon is absorbed by a thymine molecule that is adjacent to another thymine within the DNA strand, a covalent bond or dimer between the molecules is created.
HealthinationWhen + How to Use Hand Sanitizer Properly for COVID-19 ProtectionJust rubbing it into your palms? “UV is a very effective tool in the toolbox, and one of the multiple barriers to ...
In a review of 26 medical studies, a handheld device using autofluorescence imaging successfully "lit up" bacteria in nine out of 10 wounds. The lighting technology allows clinicians to see ...
Far-UVC is a type of ultraviolet germicidal irradiation being studied and commercially developed for its combination of pathogen inactivation properties and reduced negative effects on human health when used within exposure guidelines. [1][2][3][4] Far-UVC (200-235 nm), while part of the broader UV-C spectrum (100-280 nm), is distinguished by ...
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