Non-thermal plasma is produced at atmospheric pressure by mixing UV light with oxygen, nitrogen, ozone, and water and helium, under an electrical discharge. It is able to destroy bacterial biofilms of Gram-negative (Pseudomonas, S. enterica) or Gram-positive (Bacillusspp.) species in just 10 min, However, its use is still restricted to some laboratory applications, due to its high cost (Scholtz et al., 2015).
Further reading on non-thermal plasma
Scholtz, V., Pazlarova, J., Souskova, H., Khun, J., and Julak, J. (2015). Nonthermal plasma – A tool for decontamination and disinfection. Biotechnol. Adv. 33, 1108–1119. doi: 10.1016/j.biotechadv.2015.01.002
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