Ramin Mehrabifard, Zeinab Kabarkouhi, Fatemeh Rezaei, Kamal Hajisharifi, Hassan Mehdian
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引用次数: 0
摘要
在过去的几十年里,为了提高 CAP 治疗的效率,人们广泛研究了 CAP 与其他物理方式相结合的生物效应。然而,人们对大多数假定的协同效应仍然缺乏物理认识。在这方面,冷等离子体和磁场的协同效应已被用于不同的应用中,特别是由于它们在生物介质反应性方面具有相当大的协同效应。本文使用 420 mT N42 磁体,基于光学发射光谱,利用波尔兹曼图法、萨哈-波尔兹曼方程和 Specair 软件模拟,研究了垂直外静态磁场(SMF)对冷常压等离子体(CAP)特性(如电子温度和密度)的影响。结果表明,在 SMF 的存在下,旋转和电子激发温度分别增加了 100 K 和 550 K。相反,振动和平移温度保持不变。此外,电子温度在没有 SMF 的情况下估计为 1.04 eV,而在有 SMF 的情况下则增加到 1.24 eV。此外,萨哈-波尔兹曼方程表明,电子密度在额外的 SMF 存在时有所增加。本研究的结果表明,磁场可以辅助冷等离子体效应,由于等离子体温度和电子密度的改变,有利于医疗应用。
Physical Insight into the Synergistic Enhancement of CAP Therapy Using Static Magnetic Field
In the last decades, to improve the CAP treatment efficiency, its biological effects in combination with other physical modalities have widely investigated. However, the physical insight into most of supposed synergistic effects remained elusive. In this regard, the synergetic effect of cold plasma and magnetic field has been used for different applications, especially due to considerable synergistic in biological media reactivity. In the present paper, using a 420 mT N42 magnet, the effect of the perpendicular external static magnetic field (SMF) on the cold atmospheric pressure plasma (CAP) characteristics, such as electron temperature and density, is investigated based on the optical emission spectroscopy, utilizing the Boltzmann plot method, Saha-Boltzmann equation, and Specair software simulation. Results showed that the rotational and electronic excitational temperatures experienced 100 K and 550 K increases in the presence of SMF, respectively. In contrast, the vibrational and translational temperatures remained constant. Moreover, electron temperature was estimated as 1.04 eV in the absence of SMF and increased up to 1.24 eV in the presence of SMF. In addition, the Saha-Boltzmann equation illustrated that the electron density increased in the presence of the additional SMF. The results of the present study indicated that the magnetic field could be an assistant to the cold plasma effect, beneficial in medical applications due to modifications in plasma temperature and electron density.
期刊介绍:
The Brazilian Journal of Physics is a peer-reviewed international journal published by the Brazilian Physical Society (SBF). The journal publishes new and original research results from all areas of physics, obtained in Brazil and from anywhere else in the world. Contents include theoretical, practical and experimental papers as well as high-quality review papers. Submissions should follow the generally accepted structure for journal articles with basic elements: title, abstract, introduction, results, conclusions, and references.