I know that UV rays are good at killing bacteria. It disrupts the DNA in the bacterium so that it can't replicate properly.
How does nuclear radiation kill bacteria?
Radiation kills all living beings by disrupting their DNA at low ranges, and by disrupting their molecules at high doses. It will kill all biological matter, bacterial and otherwise.
Reply:dna denatures from the heat
Reply:Simply put, it fries the bacteria cellular structure, the same way as it kills cancer cells.