A long atmospheric pressure cold plasma plume for biomedical applications

Xinpei Lu, Q. Xiong, ZhiYuan Tang, Zhonghe Jiang, Xi-Wei Hu, Yuan Pan
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Abstract

This paper reports on a special designed room temperature plasma jet device. The device, which can be driven by an AC or pulsed DC power supply, is capable of generating a helium plasma plume up to 11 cm long in the surrounding air. The safety of the device is evaluated by a simple electrical model. The device can be hand held and the plasma plume can be directed to any object to be treated. The rotational and vibrational temperatures of the plasma plume are measured to be about 300 K and 2300 K, respectively. The I-V characteristics of the plasma are discussed. The emission behavior of the plasma plume is studied. The absolute concentrations of several active species are measured and the effect of the plasma plume on bacterial are investigated.
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用于生物医学应用的长大气压冷等离子体羽流
本文报道了一种特殊设计的室温等离子体射流装置。该装置可以由交流或脉冲直流电源驱动,能够在周围空气中产生长达11厘米的氦等离子体羽流。该装置的安全性是通过一个简单的电气模型来评估的。该装置可以手持,等离子体羽流可以指向任何要处理的物体。等离子体羽流的旋转和振动温度分别约为300k和2300k。讨论了等离子体的I-V特性。研究了等离子体羽流的发射行为。测量了几种活性菌的绝对浓度,并研究了等离子体羽流对细菌的影响。
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