Figure 4.

Results of the physicochemical properties analysis in plasma-activated PBS (P-A PBS) and plasma-activated NaCl (P-A NaCl). (A) pH and osmolarity were measured directly after exposure to the plasma jet for 120 s, as described in the Materials and Methods section I. PBS vs. P-A PBS and NaCl vs. P-A NaCl: paired t-test ***p < 0.001. PA-PBS vs. P-A NaCl: unpaired t-test, ns: non-significant. N = 3 independent experiments. (B) Quantification of the hydrogen peroxide (H₂O₂), nitrite (NO₂⁻) and nitrate (NO₃⁻) in P-A PBS and P-A NaCl. Unpaired t-test *** p < 0,001, ** p < 0.01; ns: non-significant p > 0.05. N = 4 independent experiments.