Surface Decontamination by Dielectric Barrier Discharge Plasma

Authors

  • H. Dabiri School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  • H. Ghomi Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran
  • N. Navab Safa Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran
  • S. Mohades Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran
Abstract:

Background: Dielectric barrier discharge (DBD), a source of non-thermal plasma, is used in surface decontamination. Objective: To study the effect of DBD plasma treatment, we evaluated the effect of plasma exposure time on inactivation of Bacillus subtilis. Results: Applying the DBD plasma to the culture of B. subtilis caused complete sterilization of the surface without any thermal effects. In addition, the inactivated colony-forming units increased as the exposure time rises. Conclusion: Considering the low temperature and non-destructive features of this method, it seems that this method is applicable for fast sterilization of resistant bacteria and hospital sensitive instruments.

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Journal title

volume 2  issue 2

pages  -

publication date 2012-06-01

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