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Impact of electrolyte solution on electrochemical oxidation treatment of Escherichia coli K-12 by boron-doped diamond electrodes

SYSNO ASEP	0561908
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Impact of electrolyte solution on electrochemical oxidation treatment of Escherichia coli K-12 by boron-doped diamond electrodes
Author(s)	Budil, Jakub (FZU-D)_{ORCID, RID} Szabó, Ondrej (FZU-D)_{ORCID, RID} Lišková, P. (CZ) Štenclová, Pavla (FZU-D)_ORCID Izsák, Tibor (FZU-D)_ORCID Potocký, Štěpán (FZU-D)_{RID, ORCID} Kromka, Alexander (FZU-D)_{RID, ORCID, SAI}
Number of authors	7
Source Title	Letters in Applied Microbiology. - : Wiley - ISSN 0266-8254 Roč. 74, č. 6 (2022), s. 924-931
Number of pages	8 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	boron-doped diamond ; chloride-based electrolyte ; chloride-free electrolyte ; Escherichia coli ; water disinfection
Subject RIV	CG - Electrochemistry
OECD category	Microbiology
R&D Projects	EF16_019/0000760 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	LM2018110 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Method of publishing	Open access
Institutional support	FZU-D - RVO:68378271
UT WOS	000765808700001
EID SCOPUS	85125927656
DOI	10.1111/lam.13687
Annotation	We studied the disinfection efficacy of boron-doped electrodes on Escherichia coli-contaminated water-based solutions in three different electrolytes, physiological solution (NaCl), phosphate buffer (PB), and phosphate buffer saline (PBS). The effect of the electrochemical oxidation treatment on the bacteria viability was studied by drop and spread plate cultivation methods, and supported by optical density measurements. We have found that bacterial suspensions in NaCl and PBS underwent a total inactivation of all viable bacteria within 10 min of the electrochemical treatment. By contrast, experiments performed in the PB showed a relatively minor decrease of viability by two orders of magnitude after 2 h of the treatment, which is almost comparable with the untreated control. The enhanced bacterial inactivation was assigned to reactive chlorine species, capable of penetrating the bacterial cytoplasmic membrane and killing bacteria from within.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2023
Electronic address	https://hdl.handle.net/11104/0334331

Number of the records: 1