Infrared waves have a long wavelength and do not possess sufficient energy to kill bacterial cells, while UV waves have a short wavelength and can be used to sterilize a surface.
- When ultraviolet light, also known as ultraviolet germicidal irradiation, is released at its most effective wavelength of 253.7 nanometers (nm), it has the greatest ability to kill germs and render microbes inert (UVGI). When transmitted at wavelengths different than those recommended, germicidal efficacy declines.
- To efficiently deliver the appropriate amount of UV radiation for the desired application, high-quality UV sterilization lamps are crucial.
- By altering cell DNA, UV radiation sterilization efficiently renders bacteria inert.
- Because DNA is necessary for cell reproduction, damage to the DNA's structural integrity prevents cells from multiplying and causing disease.
- The cell absorbs the UV rays, resulting in the formation of pyrimidine dimers.
- Instead of bonding across the double helix, this causes two nearby thymine or cytosine bases to interact with one another.
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