Abstract
This article provides a concise methodology for the development of a cold atmospheric pressure plasma jet and its characterization. To optimize the plasma jet parameters for biological and industrial applications, it is highly necessary to thoroughly understand its characteristics. The major emphasis of this work is to utilize simple and advanced diagnostics systematically with low complexity in the post-data analysis and to obtain in situ information of plasma jet parameters. The detailed optimization methods and the effect of the applied voltage and gas flow rate to achieve the stable plasma jet of the desired dimensions are discussed. In addition, the effects of the gas flow rate on the discharge current profiles and filament behavior are provided. Moreover, optical techniques, such as optical emission spectroscopy and time-resolved fast imaging, are used for the characterization of plasma parameters, i.e., Texc and ne, in a simple way. The gas temperature along the length of the plasma jet is estimated using a K-type thermocouple. The discussed simple characterization techniques and range of parameters of our designed plasma source will be useful for the development and optimization of plasma jet sources for various biological and industrial applications. Furthermore, we have also discussed various applications where we can use the discoursed diagnostics for the system development as well as for characterization. As the characterization of cold atmospheric pressure plasma jets is a multiphysics study, this concise characterization report on the cold atmospheric pressure plasma aims to provide necessary information for early researchers.
Highlights
In recent years, demand for cold atmospheric pressure plasma (CAP) has increased as it has proven promising for several biological and industrial applications.[1–3] CAP has shown its efficacy for biomedical applications, such as cancer treatment,[4–6] chronic wounds and wound size reduction,[7] diabetic foot ulcers,[8] sterilization,[9] fungal keratitis,[10] corneal infections,[11] dermatology,[12–14] dental care,[15] and endoscopic plasma applications.[16,17] In the early 2000s, the use of plasma for biomedical applications, especially for sterilization, was started with low-pressure, low-temperature plasmas generally conducted in a vacuum chamber.[18]
We provided a detailed methodology for the development of the plasma jet and its characterization concisely and systematically using both simple and advanced diagnostics, keeping in view its usefulness in various biomedical applications
The development of the plasma jet undergoes a rigorous optimization process before it is utilized for applications
Summary
ARTICLES YOU MAY BE INTERESTED IN Fluctuations of the plasma potential in atmospheric pressure micro-plasma jets AIP Advances 11, 085128 (2021); https://doi.org/10.1063/5.0049322 Perspectives on cold atmospheric plasma (CAP) applications in medicine Physics of Plasmas 27, 070601 (2020); https://doi.org/10.1063/5.0008093 Excitation of helical shape argon atmospheric pressure plasma jet using RF pulse modulation Journal of Applied Physics 130, 083301 (2021); https://doi.org/10.1063/5.0058000 Concise characterization of cold atmospheric pressure helium plasma jet Cite as: AIP Advances 11, 085329 (2021); doi: 10.1063/5.0061857 Submitted: 30 June 2021 • Accepted: 4 August 2021 • Published Online: 25 August 2021
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