Enhanced Atmospheric Pressure Plasma Jet Performance by an Alternative Dielectric Barrier Discharge Configuration

Nguyen, Duc Ba; Mok, Young Sun; Lee, Won Gyu

doi:10.1109/tps.2019.2896666

Cited by 13 publications

(18 citation statements)

References 27 publications

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“…Ar gas with a purity of 99.999% was introduced to the reactor by a mass ow controller (MFC). The jet capillaries were driven by an AC pulse power supply (AP Plasma Power Supply, HVP, Korea), which supplied AC microsecond voltage pulses with a 30 kHz frequency [23]. Electrical data during plasma jet generation were recorded by a digital oscilloscope (Tektronix, DPO 3034, four channels, 300 MHz, 2.5 GS/s, USA); herein, the high voltage was measured via a passive high voltage probe (Tektronix, P6015A, USA) while the current was monitored with a current monitor (Pearson Electronics, 2100, USA).…”

Section: Methodsmentioning

confidence: 99%

“…Besides the general characteristics of CAPs that supply reactive chemical species at low temperatures [12], each plasma source provides unique features. Speci cally, the plasma source depends on plasma gas [17,18], device con gurations [19][20][21], and operating parameters [22,23]. CAP can be classi ed into three categories in terms of plasma gas used, namely, noble gas plasma jet, N 2 plasma jet, and air plasma jet [24].…”

Section: Introductionmentioning

confidence: 99%

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Generation of multiple jet capillaries in advanced dielectric barrier discharge for large-scale plasma jets

Nguyen

Saud

Trịnh

et al. 2023

Preprint

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Multiple Ar jet capillaries (4 jets) were successfully generated by an advanced dielectric barrier discharge reactor. The advanced reactor consisted of two ring-shaped electrodes (thickness of 0.5 mm) covering the 4-bore quartz tubing (bore diameters of 1 mm; outer diameter of 6 mm), and two electrodes had a gap of 6 mm and were isolated by immersing it to liquid dielectric to prevent arcing between two electrodes and high performance of plasma jet. The performance of multiple Ar jet capillaries by the advanced reactor demonstrated less consumption of Ar gas (1–3 L/min) for obtaining total π mm2 cross-section area of plasma jets conjugated with jet temperatures not over 40°C; the temperature is suitable for implementing plasma to bio-applications. Furthermore, the plasma jet spread when it interreacted with a surface (dielectric materials, skin); consequently, the surface-effected plasma jet up to an area square of 8 mm2. Analysis of optical emissions spectra of the multiple Ar jet capillaries indicated that the jet sources consist of reactivated species and proposed that the plasma device has potential for applications in bio-applications and materials treatments.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Generation of multiple jet capillaries in advanced dielectric barrier discharge for large-scale plasma jets

Nguyen

Saud

Trịnh

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…Thus, the APP process has enabled technology in several biological and industrial applications, such as thin-film deposition, nanomaterial synthesis, polymeric surface modification, and biomedical applications [1][2][3][4][5][6]. Numerous research groups have developed various kinds of plasma devices based on methods of plasma generation and studied using the discharge plasma based on different geometries using various electrode materials [1,[7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Atmospheric Pressure Plasma Jet with Single-Pin Electrode Configuration and Its Application in Polyaniline Thin Film Growth

et al. 2022

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This study systematically investigated an atmospheric pressure plasma reactor with a centered single pin electrode inside a dielectric tube for depositing the polyaniline (PANI) thin film based on the experimental case studies relative to variations in pin electrode configurations (cases I, II, and III), bluff-body heights, and argon (Ar) gas flow rates. In these cases, the intensified charge-coupled device and optical emission spectroscopy were analyzed to investigate the factors affecting intensive glow-like plasma generation for deposition with a large area. Compared to case I, the intense glow-like plasma of the cases II and III generated abundant reactive nitrogen species (RNSs) and excited argon radical species for fragmentation and recombination of PANI. In case III, the film thickness and deposition rate of the PANI thin film were about 450 nm and 7.5 nm/min, respectively. This increase may imply that the increase in the excited radical species contributes to the fragmentation and recombination due to the increase in RNSs and excited argon radicals during the atmospheric pressure (AP) plasma polymerization to obtain the PANI thin film. This intense glow-like plasma generated broadly by the AP plasma reactor can uniformly deposit the PANI thin film, which is confirmed by field emission-scanning electron microscopy and Fourier transform infrared spectroscopy.

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“…[8,9] Among various CAPs sources, atmospheric pressure plasma jets (APPJs) could be generated into the open air with a discharge gap instead of traditional discharge, low gas temperature, simple structure, convenient handing, and highly reactive chemical species are attracting considerable attention from many scholars and various types of APPJ devices have been reported. [10] Plasma jets can be classified into four categories: dielectric-free electrode (DFE) jets, dielectric barrier discharge (DBD) jets, DBDlike jets, and single electrode (SE) jets, [11] DBD is one of the most effective ways to produce CAPs, due to the limitation of the barrier medium on the discharge current, the discharge will not convert to arc has attracted extensive attention, [12,13] the electrode structure mainly has two forms: parallel plate-plate and coaxial rod-ring, its main feature is that the electrode gap is filled with a specific working gas, at the same time, at least one electrode is covered by an insulating medium or the insulating medium is fixed between the electrodes. [14,15] Needle-ring electrodes DBD plasma jet is one of the DBD-like jets, but needle-ring electrodes plasma jet with a solid electrode and hollow electrode in discharge characteristics and anticancer effects are not reported yet.…”

Section: Introductionmentioning

confidence: 99%

The investigation of solid and hollow electrode APPJs in discharge characteristics and anticancer effects

Miao

Peng

Fan

et al. 2022

Plasma Processes & Polymers

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Cold atmospheric pressure plasmas (CAPs) have a promising application in cancer treatment, the needle‐ring electrodes plasma jet is one of the common CAPs sources. Here, we compared the discharge characteristics and anticancer effects in two plasma jets: solid electrode and hollow electrode with six working gases (He, He + 0.5%O2, He + 0.5%N2, Ar, Ar + 0.5%O2, and Ar + 0.5%N2). The results show the solid plasma jet is slightly stronger according to discharge image, optical emission spectroscopy, and concentration of H2O2 and NO2−. We used the leukemia cell THP‐1 as the model to detect the anticancer effect, cell viability assay demonstrated a solid electrode plasma jet with He + 0.5%N2 has less cell survival. Moreover, apoptosis increased significantly as the plasma treatment time and Cleaved‐PARP1 upregulated, SOD1 and p21 downregulated in a time‐dependent manner. Our work suggested that a solid electrode plasma jet with He + 0.5%N2 may be a novel therapeutic method for acute myeloid leukemia.

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Enhanced Atmospheric Pressure Plasma Jet Performance by an Alternative Dielectric Barrier Discharge Configuration

Cited by 13 publications

References 27 publications

Generation of multiple jet capillaries in advanced dielectric barrier discharge for large-scale plasma jets

Generation of multiple jet capillaries in advanced dielectric barrier discharge for large-scale plasma jets

Optimization of Atmospheric Pressure Plasma Jet with Single-Pin Electrode Configuration and Its Application in Polyaniline Thin Film Growth

The investigation of solid and hollow electrode APPJs in discharge characteristics and anticancer effects

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