Anticancer Effects of Plasma-Activated Medium Produced by a Microwave-Excited Atmospheric Pressure Argon Plasma Jet

Figure 3

Measurement of NO₂^- concentration in PAM. The PAM was produced at the conditions; the input power of 7 W, the gas flow rates 1.3 SLM and 1.9 SLM, and plasma exposure time 0–180 sec. NO₂^– levels were measured immediately and 1, 2, 3, 6, 12, and 24 hours after plasma treatment in the stored PAM and the PAM incubated with A549 cells. Comparison of the NO₂^– levels in the stored PAM (a, b) and in the PAM incubated with A549 cells (c, d) for different incubation times.

(a)

(b)

(c)

(d)