Effect of Low-Pressure Microwave Discharges on Pyrogen Bioactivity

The effect of microwave discharge on pyrogen bioactivity has been studied in different oxygen- and hydrogen-containing mixtures with the aim of identifying the crucial depyrogenation agent. According to the obtained biological results and their comparison with properties of the plasma determined by means of optical emission spectroscopy and Langmuir probe measurements, it has been found that under experimental conditions tested, depyrogenation is not greatly affected by UV radiation or charged particles but is considerably accelerated by the presence of atomic hydrogen