Enhanced aerosol deposition by a low‐cost compact nanosecond‐pulsed plasma system

Abstract

Nanosecond (ns)-pulsed air plasmas are promising for environmental and biomedical applications. This paper presented a low-cost ns-pulsed plasma system that consists of a two-stage Cockcroft-Walton voltage multiplier, a spark gap gas switch, and a plasma reactor. This ns power supply generated a uniform air plasma with a volume of 25 × 25 × 2 cm and a maximum ion wind of 0.8 m/s. The ion wind transported aerosols through plasma volume. Aerosols were charged

Plasma Scalpels: Devices, Diagnostics, and Applications

“…Simulations show that the discharge of the plasma scalpel in the water-vapor layer (50% H 2 O and 50% H 2 vapor mixture) generates a large number of reactive species, with H atoms being the most abundant (approximately 400 ppm), followed by O atoms (20 ppm) and OH (3–10 ppm). The rate constant of the OH radical extraction of H is about 5000 times faster than that of H atom and 500 times faster than that of the ground state oxygen atom [ 4 , 38 , 39 , 40 , 41 , 42 ]. The experimental spectral data show that a large number of hydroxyl radicals generated by the plasma scalpel [ 4 ] can achieve oxidative etching of tissue [ 43 , 44 , 45 , 46 ].…”