Abstract:We designed a portable direct-current (DC) jet sterilizer that discharges self-excited plasma through a needle-rectangular loop sterilizer. The device is sized ∅ 30 mm × 40 mm. The tungsten needle is connected to the high voltage source and to the copper rectangular loop with earthing wire. Under high-voltage DC (±9.6 kV) at atmospheric pressure, the plasma jets killed Escherichia coli and Staphylococcus aureus in the absence of an externally connected carrier gas. Under the same conditions, the E. coli and S.… Show more
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