Publication
Title
Bacterial inactivation by plasma treated water enhanced by reactive nitrogen species
Author
Abstract
There is a growing body of literature that recognizes the importance of plasma treated water (PTW) for inactivation of microorganism. However, very little attention has been paid to the role of reactive nitrogen species (RNS) in deactivation of bacteria. The aim of this study is to explore the role of RNS in bacterial killing, and to develop a plasma system with increased sterilization efficiency. To increase the concentration of reactive oxygen and nitrogen species (RONS) in solution, we have used vapor systems (DI water/HNO3 at different wt%) combined with plasma using N2 as working gas. The results show that the addition of the vapor system yields higher RONS contents. Furthermore, PTW produced by N2 + 0.5 wt% HNO3 vapor comprises a large amount of both RNS and ROS, while PTW created by N2 + H2O vapor consists of a large amount of ROS, but much less RNS. Interestingly, we observed more deactivation of E. Coli with PTW created by N2 + 0.5 wt% HNO3 vapor plasma as compared to PTW generated by the other plasma systems. This work provides new insight into the role of RNS along with ROS for deactivation of bacteria.
Language
English
Source (journal)
Scientific reports. - London, 2011, currens
Scientific reports. - London, 2011, currens
Publication
London : Nature Publishing Group , 2018
ISSN
2045-2322
Volume/pages
8 (2018) , 10 p.
Article Reference
11268
ISI
000439805700029
Pubmed ID
30050086
Medium
E-only publicatie
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Project info
Towards a fundamental understanding of plasma for cancer treatment: A combined experimental and computational study.
ANTICANCER-PAM: Anticancer activity of plasma activated medium and its underlying mechanisms: Combined experimental and computational study
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 21.08.2018
Last edited 15.10.2021
To cite this reference