Discharge voltage [kV] D value for E. coli by air plasma [kV] D value for E. coli by nitrogen plasma [kV] D value for B. subtilis by air plasma [kV] D value for B. subtilis by nitrogen plasma [kV] 1.00 0.270 0.289 0.452 0.505 1.16 0.290 0.324 0.440 0.545 1.24 0.247 0.322 0.427 0.569 1.40 0.259 0.334 0.293 0.596

Table 1: The D value of E. coli and B. subtilis for various discharge voltage of both air and nitrogen microplasma.