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Outline
Bacterial sterilization using Dielectric barrier discharge plasma in atmospheric pressure
Authors
1Assistant Professor, Radiology group, Faculty of Paramedicine, AJA University of Medical Sciences, Tehran, Iran., Iran
2Researcher, Radiology group, Faculty of Paramedicine, AJA University of Medical Sciences, Tehran, Iran, Andorra
*Corresponding Author: Corresponding author: valiallah saba, Assistant Professor, Radiology group, Faculty of Paramedicine, AJA University of Medical Sciences, Tehran, Iran., Iran Email: [email protected]
Published online:Sep 24, 2013
Article type:Research Article
Received:Apr 24, 2013
Accepted:Aug 24, 2013
How to Cite:saba V, Ramzani K, Hashemi H. Bacterial sterilization using Dielectric barrier discharge plasma in atmospheric pressure. Ann Mil Health Sci Res. 2013;11(3):e65104. doi:
Abstract
Background: Surface decontamination is an important issue in different areas like medicine and food industry. Traditional methods of sterilization have disadvantages as thermal effect and producing toxic chemical residues. Surface sterilization by cold plasma has been notices recently. In this study the effect of exposure time and capacitance of storage capacitors on cold plasma was assessed. Materials and Methods: In this experimental study an applicable and outstanding device for surface sterilization is presented. The dielectric barrier discharge (DBD) is a low temperature plasma source that is created between two conductive electrodes connected to an AC power supply and at least one of DBD electrodes is covered by dielectric layer. Results: The results of DBD plasma treatment of E. coli show that complete sterilization is occurred only after 2 seconds of exposure time without any thermal effect and increasing the exposure time increases the inactivation effect of the cold plasma. On the other hand by increasing the capacitance of capacitors the sterilization effect is increased obviously. DBD plasma is generated at 10kV voltage and 20 kHz frequency. Conclusion: This fast non-thermal and non-destructive method could be useful for inactivation of bacteria and hospital infection agents.
References
- 1.References are available in pdf.
Copyright
© 2013, Annals of Military and Health Sciences Research. This open-access article is available under the Creative Commons Attribution-NonCommercial 4.0 (CC BY-NC 4.0) International License (https://creativecommons.org/licenses/by-nc/4.0/), which allows for the copying and redistribution of the material only for noncommercial purposes, provided that the original work is properly cited.
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