Mohammed Ubaid Hussein Thaer Abdullah Hasan Yasir Merie Nayyef


The current study is concerned about the production of plasma needle at atmospheric pressure air for sterilization by killing Staphylococcus aureus using an Atmospheric Non-Thermal Plasma needle. The discharge was produced by applying high voltage AC source of frequency (10) kHz and potential difference of (0-8) kV across the electrodes with flow rate (1-5l/min.) of argon gas. The discharge was characterized by measuring current and voltage with a high frequency. The results showed the best time to kill Staphylococcus aureus was 6 minutes, where the voltage was 8 kV and the distance between the sample of the bacteria and the head of the plasma needle is 2cm and the gas flow is 5L/min.

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plasma needle, high voltage, Staphylococcus aureus, atmospheric pressure

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