Sterilization of bacillus subtilis spores by atmospheric pressure plasma jet with Ar and Ar/H2O mixtures

Over the past ten years, atmospheric pressure plasma jets or plumes have received an increasing amount of attentions because of their potential interest for different technologies, especially biomedical application. In many paper regarded that OH radicals played one of the important role in sterilization process 1, 2, but there are no clear evidences to prove this point except by using optical emission spectroscopy prove the existence of OH.