NDLI: Bacterial deactivation in open-air by the afterglow plume emitted from a grounded hollow slot electrode

Content Provider	IEEE Xplore Digital Library
Author	Sharma, A. Pruden, A. Neisan, N. Zengqi Yu Collins, G.J.
Copyright Year	2004
Description	Author affiliation: Colorado State Univ., Fort Collins, CO, USA (Sharma, A.; Pruden, A.; Neisan, N.; Zengqi Yu; Collins, G.J.)
Abstract	Summary form only given. Atmospheric pressure glow discharges provide a low temperature sterilization alternative that can deactivate bacteria, reduce harmful gas emissions and operate with high rates at reduced temperature. Our research focuses on operation in open-air that potentially makes the process inexpensive and operational in more practical conditions, than a sealed chamber. We employ a grounded hollow slot in this work, whose dimensions are: 7.62 cm long, 0.02 cm wide and 0.2 cm deep. Recessed behind the grounded slot is a powered electrode employing 13.56 MHz electrical drive. A mixture of argon and oxygen gases flows from the powered electrode through the grounded slots at a flow rate of 32 liters per minute creating a plasma afterglow plume, which extends 1-8 mm past the open slot and is 7 cm long. The afterglow plume is line shaped and is visible in open-air operation. The potential of the open-air slot reactor to deactivate bacterial growth in a practical environment with a device that is hand held are demonstrated experimentally.
Sponsorship	Plasma Sci. and Applications Committee of the IEEE Nuclear and Plasma Sci. Soc
File Size	79345
File Format	PDF
ISBN	0780383346
ISSN	07309244
DOI	10.1109/PLASMA.2004.1339615
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-07-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Microorganisms Electrodes Plasma temperature Temperature sensors Electromagnetic heating Gases Atomic measurements Fungi Microwave filters Polymers
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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