Filtration is used to sterilize heat-sensitive solutions, such as enzyme solutions, vaccines, and antibiotics, by passing them through a filter with pore sizes small enough to capture bacteria and viruses. UV radiation is used for sterilization of surfaces, air, and water. It works by damaging the DNA of microorganisms and preventing them from reproducing. It is commonly used in food processing and hospital settings.
Ethylene oxide gas is used for sterilizing medical and surgical equipment that is sensitive to heat and moisture. It works by damaging the DNA of microorganisms and preventing them from reproducing. It is also used for sterilizing equipment that cannot be sterilized by other means, such as plastics or electronics. However, it is toxic and potentially carcinogenic, so proper care must be taken when handling it.