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Treatment of enterococcus faecalis bacteria by a helium atmospheric cold plasma brush with oxygen addition
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10.1063/1.4732135
/content/aip/journal/jap/112/1/10.1063/1.4732135
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/1/10.1063/1.4732135
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic diagram of the experimental setup. (b) Photograph of the atmospheric cold plasma brush with 4500 SCCM He (P = 24 W).

Image of FIG. 2.
FIG. 2.

Typical oscillograms of applied voltage and discharge current of a filamentary discharge in He/O2

Image of FIG. 3.
FIG. 3.

Survival curves of Enterococcus faecalis bacteria in the He with different O2 additions into atmospheric cold plasma brush (P = 24 W).

Image of FIG. 4.
FIG. 4.

Scanning electron micrographs of Enterococcus faecalis bacteria of (a) untreated control, (b) helium plasma treatment, (c) He + 1% O2 plasma treatment, (d) He + 2.5% O2 plasma treatment. Plasma conditions were 4500 SCCM helium flow rate and 60 s exposure time (P = 24 W).

Image of FIG. 5.
FIG. 5.

Emission spectra of the plasma with 4500 SCCM He/O2 (2.5%) taken at 5 mm bottom the nozzle (P = 24 W).

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/content/aip/journal/jap/112/1/10.1063/1.4732135
2012-07-06
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Treatment of enterococcus faecalis bacteria by a helium atmospheric cold plasma brush with oxygen addition
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/1/10.1063/1.4732135
10.1063/1.4732135
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