Why Is Ultraviolet Light Used For Sterilization

Why people use ultraviolet light sterilization.

Why is ultraviolet light used for sterilization.

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. Today uv light technology is the preferred choice for sterilization in numerous industrial applications because of its effectiveness affordability and most importantly its safety. 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. Uv light is a disinfection method that inactivates microorganisms by a physical process rather than using harmful chemicals and thereby does not produce corrosive materials or disinfection by products dbps.

If products generating uv light do not shield the user from exposure they pose a. Uvgi is used in a variety of applications such as food air and water purification. The success of uv germicidal disinfection systems lies in the technology used in these systems. Nardell says the light they emit generally isn t strong enough to have an impact.

As for the uv wands meant to be used on desks keyboards and other surfaces. Uv light has been used for sterilization and disinfection as early as the mid 20th century. It s the wild west he says. Uv led vs traditional uv bulbs has broadened the field for where it can be used.

Ultraviolet light sterilization utilizes the high energy nature of uv light. With advancements in technology and specifically in the uv bulbs themselves its reliable long lifespan thousands of hours and smaller size e g. 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.