He+O{sub 2}+H{sub 2}O plasmas as a source of reactive oxygen species

Journal Article · Mon May 30 00:00:00 EDT 2011 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3592775· OSTI ID:21518463

Liu, D X; Wang, X H; Rong, M Z ^[1]; Iza, F ^[2]; Kong, M G ^[1]

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1. State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, No. 28 Xianning West Road, Xi'an City, Shaanxi Province, 710049 (China)
2. Department of Electronic and Electrical Engineering, Loughborough University, LE11 3TU (United Kingdom)

The effect of water in the chemistry of atmospheric-pressure He+O{sub 2} plasmas is studied by means of a comprehensive global model. Water enables the generation of reactive oxygen species (ROS) cocktails that are rich not only in O, O{sub 2}*, and O{sub 3} but also in OH and H{sub 2}O{sub 2}. Due to its polar nature, water also leads to cluster formation, possibly affecting the plasma dynamics. Since the lifetime of many of the ROS is short, the plasma chemistry plays two roles: (i) direct interaction with superficial cells and (ii) triggering of a secondary chemistry that propagates the plasma treatment to regions away from the plasma-surface interface.

• OSTI ID: 21518463
• Journal Information: Applied Physics Letters, Vol. 98, Issue 22; Other Information: DOI: 10.1063/1.3592775; (c) 2011 American Institute of Physics; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ATMOSPHERIC PRESSURE
HELIUM
HELIUM COMPOUNDS
HYDROGEN PEROXIDE
INTERACTIONS
INTERFACES
LIFETIME
OXYGEN
OZONE
PLASMA
SURFACES
WALL EFFECTS
WATER
ELEMENTS
FLUIDS
GASES
HYDROGEN COMPOUNDS
NONMETALS
OXYGEN COMPOUNDS
PEROXIDES
RARE GAS COMPOUNDS
RARE GASES