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A novel method for the detection of plasma jet boundaries by exploring DNA damage

Bahnev, Blagovest; Bowden, Mark; Stypczynska, Agnieszka; Ptasińska, Sylwia; Mason, Nigel and Braithwaite, Nicholas St.J. (2014). A novel method for the detection of plasma jet boundaries by exploring DNA damage. European Physical Journal D, 68(6), article no. 140.

DOI (Digital Object Identifier) Link: https://doi.org/10.1140/epjd/e2014-40844-9
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Abstract

In this study we have investigated the plasma-air boundary of an atmospheric pressure discharge by exposing samples of dry plasmid DNA to a plasma jet. While visible emission from excited plasma species suggested that the plasma jet had dimensions approximately 5.5 cm long and 0.4 cm wide, damage to DNA samples was detected at distances of up to 20 cm from the tip of the jet with observable effects far outside the luminous plasma volume. Reactive oxygen species were identified as the most likely cause of DNA damage at these long distances. These results provide a novel method for determining the extent of any kind of plasma jet generated in the open atmosphere.

Item Type: Journal Item
Copyright Holders: 2014 EDP Sciences, Società Italiana di Fisica, Springer-Verlag
ISSN: 1434-6079
Extra Information: 5 pp.

Topical Issue: Nano-scale Insights into Ion-beam Cancer Therapy
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Research Group: Physics
Item ID: 42406
Depositing User: Agnieszka Stypczynska
Date Deposited: 26 Mar 2015 11:28
Last Modified: 07 Dec 2018 10:29
URI: http://oro.open.ac.uk/id/eprint/42406
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