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Inhibition of corrosion causing Pseudomonas aeruginosa using plasma-activated water

Asimakopoulou, Eleni; Εkonomou, Sotiriοs Ι.; Papakonstantinou, Pagona; Doran, Olena; Stratakos, Alexandros Ch

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Authors

Eleni Asimakopoulou

Profile image of Sotirios Oikonomou

Dr Sotirios Oikonomou Sotirios.Oikonomou@uwe.ac.uk
Postodoctoral researcher & Occasional Associate Lecturer - CHSS - SoAS

Pagona Papakonstantinou

Olena Doran Olena.Doran@uwe.ac.uk
College Dean of Research and Enterprise

Profile image of Alexandros Stratakos

Alexandros Stratakos Alexandros.Stratakos@uwe.ac.uk
Associate Professor in Sustainable Agri-Food Production



Abstract

Aims: The cost of Microbiologically Influenced Corrosion (MIC) significantly affects a wide range of sectors. This study aims to assess the efficiency of a novel technology based on the use of plasma-activated water (PAW) in inhibiting corrosion caused by bacteria. Methods and Results: This study evaluated the effectiveness of PAW, produced by a plasma bubble reactor, in reducing corrosion causing Pseudomonas aeruginosa planktonic cells in tap water and biofilms were grown onto stainless steel (SS) coupons. Planktonic cells and biofilms were treated with PAW at different discharge frequencies (500–1500Hz) and exposure times (0–20min). P. aeruginosa cells in tap water were significantly reduced after treatment, with higher exposure times and discharge frequencies achieving higher reductions. Also, PAW treatment led to a gradual reduction for young and mature biofilms, achieving >4-Log reductions after 20min. Results were also used to develop two predictive inactivation models. Conclusions: This work presents evidence that PAW can be used to inactivate both planktonic cells and biofilms of P. aeruginosa. Experimental and theoretical results also demonstrate that reduction is dependent on discharge frequency and exposure time. Significance and Impact of the Study: This work demonstrates the potential of using PAW as means to control MIC.

Journal Article Type Article
Acceptance Date Nov 28, 2021
Online Publication Date Nov 30, 2021
Deposit Date Dec 8, 2021
Publicly Available Date Dec 1, 2022
Journal Journal of Applied Microbiology
Print ISSN 1364-5072
Electronic ISSN 1365-2672
Publisher Wiley
Peer Reviewed Peer Reviewed
DOI https://doi.org/10.1111/jam.15391
Keywords Applied Microbiology and Biotechnology; General Medicine; Biotechnology
Public URL https://uwe-repository.worktribe.com/output/8186995

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Licence
http://creativecommons.org/licenses/by-nc-nd/4.0/

Publisher Licence URL
http://creativecommons.org/licenses/by-nc-nd/4.0/

Copyright Statement
This is the peer reviewed version of the following article: Asimakopoulou, E., Εkonomou, S. Ι., Papakonstantinou, P., Doran, O., & Stratakos, A. C. (in press). Inhibition of corrosion causing Pseudomonas aeruginosa using plasma activated water. Journal of Applied Microbiology, https://doi.org/10.1111/jam.15391e, which has been published in final form at https://doi.org/10.1111/jam.15391.

This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation.

Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.






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