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. 2021 Jan 26;10(2):236. doi: 10.3390/cells10020236

Figure 1.

Figure 1

(a) Schematic outline of the experimental setup. (b) Current and voltage waveforms through plasma discharge. (c) Optical emission spectra (OES) measurement for soft plasma jet device by air gas. (d) Measurement of ozone concentration at different distances of treatment. (e) Photograph of the soft plasma jet.