Why Is Ultraviolet Light Used For Sterilization

Ultraviolet light sterilization utilizes the high energy nature of uv light.

Why is ultraviolet light used for sterilization. A quick primer on uv light. Ultraviolet uv is a form of electromagnetic radiation with wavelength from 10 nm with a corresponding frequency of approximately 30 phz to 400 nm 750 thz shorter than that of visible light but longer than x rays uv radiation is present in sunlight and constitutes about 10 of the total electromagnetic radiation output from the sun it is also produced by electric arcs and specialized. Ultraviolet germicidal irradiation uvgi is a disinfection method that uses short wavelength ultraviolet ultraviolet c or uv c light to kill or inactivate microorganisms by destroying nucleic acids and disrupting their dna leaving them unable to perform vital cellular functions. Uv led vs traditional uv bulbs has broadened the field for where it can be used.

Nardell says the light they emit generally isn t strong enough to have an impact. If products generating uv light do not shield the user from exposure they pose a. Uv light has been used for sterilization and disinfection as early as the mid 20th century. With advancements in technology and specifically in the uv bulbs themselves its reliable long lifespan thousands of hours and smaller size e g.

Today uv light technology is the preferred choice for sterilization in numerous industrial applications because of its effectiveness affordability and most importantly its safety. The success of uv germicidal disinfection systems lies in the technology used in these systems. Uv light comes primarily from the sun but there are also man made sources of uv light including tanning beds and the currently buzzed about uv disinfection lamps. Since the finding in 1878 artificially produced uvc has become a staple method of sterilisation one used in hospitals airplanes offices and factories every day.

As for the uv wands meant to be used on desks keyboards and other surfaces. While uv disinfection has been in practice since years the concept has caught more traction since the coronavirus pandemic. Why people use ultraviolet light sterilization. Uv light may be used to disinfect surfaces in a setting where uv light does not escape to the surroundings.