Surface scan cold plasma technology for effective inhibition of Staphylococcus epidermidis and Escherichia coli

Scientific Reports 2026 Open access

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Authors: Veronika Loupová, Barbora Chobotská, Přemysl Menčík, Zdenka Kozáková, Jan Hrudka, František Krčma, Kristína Trebulová
DOI: 10.1038/s41598-025-32902-1
Cited by: 4
References: 49

Abstract

This study examines the decontamination efficacy of cold atmospheric plasma (CAP) against Staphylococcus epidermidis and Escherichia coli, with emphasis on surface scanning parameters and resistance potential. Bacterial cultures on solid nutrient media were treated using a non-thermal microwave plasma torch operated with high-purity argon (4.6) at 5 Slm and 12-13 W. Treatment was systematically varied in scanning direction, speed, and duration. Results indicate that exposure time was the main factor influencing bacterial inhibition, whereas direction and speed exerted only minor effects. E. coli exhibited greater susceptibility compared to S. epidermidis. Repeated exposure experiments revealed no evidence of resistance development.

Fields of Study & Subjects

Plasma Applications and Diagnostics Bacillus and Francisella bacterial research Surface Modification and Superhydrophobicity

Publication details

Journal / source
Scientific Reports
Publisher
Springer Science and Business Media LLC
Volume
16
Issue
1
Pages
3020–3020
Publication date
19 January 2026
Language
EN