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. 2017 Jul 4;7:4562. doi: 10.1038/s41598-017-04650-4

Figure 2.

Figure 2

Variation of the concentration of DMPO-OH in water, DMEM + /− 10% FCS as a function of helium plasma jet exposure time. Half height of the second peak of the quartet EPR spectrum was chosen to represent DMPO-OH intensity.