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Kim N, Lee S, Lee S, Kang J, Choi Y, Park J, Park C, Khang D, Kim S. Portable Cold Atmospheric Plasma Patch-Mediated Skin Anti-Inflammatory Therapy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2202800. [PMID: 36180414 PMCID: PMC9731685 DOI: 10.1002/advs.202202800] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 08/27/2022] [Indexed: 05/29/2023]
Abstract
Although plasma is a promising technology in various fields, its clinical application is restricted by several limitations. A cold atmospheric plasma (CAP) patch is fabricated to help overcome hurdles, especially when treating skin diseases. This patch has surface dielectric barrier discharge, which generates reactive oxygen species (ROS) and reactive nitrogen species (RNS) on a flexible polymer film surface on which the embedded electrode induces a locally strong electric field. The effect of the CAP patch on psoriasis is also evaluated. The distinct characteristics of psoriasis between the lesion and non-lesion area allow the CAP patch to be suitable for only lesion area for its treatment. The CAP patch induces the opening of calcium channels in keratinocytes, thereby restoring abnormal keratinocyte differentiation and the collapse of the tight junction; thus, alleviating psoriatic symptoms. In addition, the favorable effect is due to the induction of ROS/RNS by the CAP patch, not the electric field generated during plasma generation. The findings indicate that the proposed portable CAP patch can help treat inflammatory skin disorders, especially psoriasis. As this can be used easily as a combination therapy with existing drugs, it may help reduce side effects caused by existing drugs.
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Affiliation(s)
- Namkyung Kim
- Cell & Matrix Research InstituteDepartment of PharmacologySchool of MedicineKyungpook National UniversityDaegu41944South Korea
| | - Seunghun Lee
- Department of Nano‐Bio ConvergenceNano Surface Materials DivisionKorea Institute of Materials ScienceChangwon51508South Korea
| | - Soyoung Lee
- Immunoregulatory Materials Research CenterKorea Research Institute of Bioscience and BiotechnologyJeongeup56212South Korea
| | - Jinjoo Kang
- Cell & Matrix Research InstituteDepartment of PharmacologySchool of MedicineKyungpook National UniversityDaegu41944South Korea
| | - Young‐Ae Choi
- Cell & Matrix Research InstituteDepartment of PharmacologySchool of MedicineKyungpook National UniversityDaegu41944South Korea
| | - Jeongsu Park
- Department of PhysiologySchool of MedicineGachon UniversityIncheon21999South Korea
| | - Chul‐Kyu Park
- Department of PhysiologySchool of MedicineGachon UniversityIncheon21999South Korea
| | - Dongwoo Khang
- Department of PhysiologySchool of MedicineGachon UniversityIncheon21999South Korea
| | - Sang‐Hyun Kim
- Cell & Matrix Research InstituteDepartment of PharmacologySchool of MedicineKyungpook National UniversityDaegu41944South Korea
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Atmospheric pressure plasma jet-mouse skin interaction: Mitigation of damages by liquid interface and gas flow control. Biointerphases 2022; 17:021004. [PMID: 35360909 DOI: 10.1116/6.0001596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The possible benefits of an atmospheric pressure plasma jet skin treatment have been tested in vivo on mouse skin. Many studies have been conducted in vitro on mouse skin cells, but only a few in vivo where, due to the complexity of the biological system, plasma can cause severe damages. For this reason, we investigated how kHz plasma generated in a jet that is known to inflict skin damage interacts with mouse skin and explored how we can reduce the skin damage. First, the focus was on exploring plasma effects on skin damage formation with different plasma gases and jet inclinations. The results pointed to the perpendicular orientation of a He plasma jet as the most promising condition with the least skin damage. Then, the skin damage caused by a He plasma jet was explored, focusing on damage mitigation with different liquid interfaces applied to the treatment site, adding N2 to the gas mixture, or alternating the gas flow dynamics by elongating the jet's glass orifice with a funnel. All these mitigations proved highly efficient, but the utmost benefits for skin damage reduction were connected to skin temperature reduction, the reduction in reactive oxygen species (ROS), and the increase in reactive nitrogen species (RNS).
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Wieland T, Kotthaus K, Bürkin EI, Engesser F, Altenburger MJ, Ledernez L, Urban GA, Bergmann ME. Analysis of the Effects of Disinfectants and Plasma Treatment on Biofilm Growth by a Thermal Flow Sensor for Real-Time Measurements. PLASMA MEDICINE 2022. [DOI: 10.1615/plasmamed.2022044566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Pinchuk M, Nikiforov A, Snetov V, Chen Z, Leys C, Stepanova O. Role of charge accumulation in guided streamer evolution in helium DBD plasma jets. Sci Rep 2021; 11:17286. [PMID: 34446766 PMCID: PMC8390516 DOI: 10.1038/s41598-021-96468-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 08/09/2021] [Indexed: 11/22/2022] Open
Abstract
Experimental data are presented on the evolution of a helium atmospheric pressure plasma jet driven by a tailored voltage waveform generated as bunches of voltage pulses consisting of a superposition of \documentclass[12pt]{minimal}
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\begin{document}$$\approx 43$$\end{document}≈43 kHz bipolar square pulses and \documentclass[12pt]{minimal}
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\begin{document}$$\approx 300$$\end{document}≈300 kHz oscillations. The characteristics of directed ionization waves (guided streamers) are compared for bunches with different first pulse polarities and different bunch duty cycles. The longest and brightest streamers are achieved at the voltage bunch with the first negative pulse and a minimum duty cycle. The dynamics of streamers at the voltage bunch with the first positive pulse are characterized by the shortest length and a lower brightness. The plasma jet length can be smoothly changed by varying the number of pulses in the bunch and the polarity of the first pulse. It is thus possible to precisely localize the region of a strong field in space by combining the parameters of the applied voltage (the duty cycle and polarity of the first pulse of a bunch) with a stepwise propagation mode of a guided streamer.
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Affiliation(s)
- Mikhail Pinchuk
- Institute for Electrophysics and Electrical Power of the Russian Academy of Sciences, St. Petersburg, Russia, 191186.
| | - Anton Nikiforov
- Department of Applied Physics, Ghent University, 9000, Ghent, Belgium
| | - Vadim Snetov
- Institute for Electrophysics and Electrical Power of the Russian Academy of Sciences, St. Petersburg, Russia, 191186
| | - Zhaoquan Chen
- School of Electrical and Information Engineering, Anhui University of Technology, Maanshan, 243032, China
| | - Christophe Leys
- Department of Applied Physics, Ghent University, 9000, Ghent, Belgium
| | - Olga Stepanova
- Institute for Electrophysics and Electrical Power of the Russian Academy of Sciences, St. Petersburg, Russia, 191186
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Omran AV, Busco G, Ridou L, Dozias S, Grillon C, Pouvesle JM, Robert E. Cold atmospheric single plasma jet for RONS delivery on large biological surfaces. ACTA ACUST UNITED AC 2020. [DOI: 10.1088/1361-6595/abaffd] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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C. Nishime TM, Wagner R, G. Kostov K. Study of Modified Area of Polymer Samples Exposed to a He Atmospheric Pressure Plasma Jet Using Different Treatment Conditions. Polymers (Basel) 2020; 12:polym12051028. [PMID: 32370019 PMCID: PMC7284806 DOI: 10.3390/polym12051028] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/21/2020] [Accepted: 04/23/2020] [Indexed: 12/21/2022] Open
Abstract
In the last decade atmospheric pressure plasma jets (APPJs) have been routinely employed for surface processing of polymers due to their capability of generating very reactive chemistry at near-ambient temperature conditions. Usually, the plasma jet modification effect spans over a limited area (typically a few cm²), therefore, for industrial applications, where treatment of large and irregular surfaces is needed, jet and/or sample manipulations are required. More specifically, for treating hollow objects, like pipes and containers, the plasma jet must be introduced inside of them. In this case, a normal jet incidence to treated surface is difficult if not impossible to maintain. In this paper, a plasma jet produced at the end of a long flexible plastic tube was used to treat polyethylene terephthalate (PET) samples with different incidence angles and using different process parameters. Decreasing the angle formed between the plasma plume and the substrate leads to increase in the modified area as detected by surface wettability analysis. The same trend was confirmed by the distribution of reactive oxygen species (ROS), expanding on starch-iodine-agar plates, where a greater area was covered when the APPJ was tilted. Additionally, UV-VUV irradiation profiles obtained from the plasma jet spreading on the surface confirms such behavior.
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Affiliation(s)
- Thalita M. C. Nishime
- Leibniz Institute for Plasma Science and Technology (INP), D-17489 Greifswald (MV), Germany;
- Faculty of Engineering (FEG)—São Paulo State University (UNESP), Guaratinguetá (SP) 12516-410, Brazil;
- Correspondence:
| | - Robert Wagner
- Leibniz Institute for Plasma Science and Technology (INP), D-17489 Greifswald (MV), Germany;
| | - Konstantin G. Kostov
- Faculty of Engineering (FEG)—São Paulo State University (UNESP), Guaratinguetá (SP) 12516-410, Brazil;
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Volkov AG, Xu KG, Kolobov VI. Plasma-generated reactive oxygen and nitrogen species can lead to closure, locking and constriction of the Dionaea muscipula Ellis trap. J R Soc Interface 2020; 16:20180713. [PMID: 30958146 DOI: 10.1098/rsif.2018.0713] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Reactive oxygen and nitrogen species (RONS) can influence plant signalling, physiology and development. We have previously observed that an argon plasma jet in atmospheric air can activate plant movements and morphing structures in the Venus flytrap and Mimosa pudica similar to stimulation of their mechanosensors in vivo. In this paper, we found that the Venus flytrap can be activated by plasma jets without direct contact of plasma with the lobe, midrib or cilia. The observed effects are attributed to RONS, which are generated by argon and helium plasma jets in atmospheric air. We also found that application of H2O2 or HNO3 aqueous solutions to the midrib induces propagation of action potentials and trap closing similar to plasma effects. Control experiments showed that UV light or neutral gas flow did not induce morphing or closing of the trap. The trap closing by plasma is thus likely to be associated with the production of hydrogen peroxide by the cold plasma jet in air. Understanding plasma control of plant morphing could help design adaptive structures and bioinspired intelligent materials.
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Affiliation(s)
- Alexander G Volkov
- 1 Department of Chemistry and Biochemistry, Oakwood University , Huntsville, AL 35896 , USA
| | - Kunning G Xu
- 2 Mechanical and Aerospace Engineering Department, The University of Alabama in Huntsville , Huntsville, AL 35899 , USA
| | - Vladimir I Kolobov
- 3 The Center for Space Plasma and Aeronomic Research, The University of Alabama in Huntsville , Huntsville, AL 35899 , USA.,4 CFD Research Corporation , Huntsville, AL 35806 , USA
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Revealing Plasma-Surface Interaction at Atmospheric Pressure: Imaging of Electric Field and Temperature inside the Targeted Material. Sci Rep 2020; 10:2712. [PMID: 32066814 PMCID: PMC7026449 DOI: 10.1038/s41598-020-59345-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 01/07/2020] [Indexed: 11/21/2022] Open
Abstract
The plasma-surface interaction is studied for a low temperature helium plasma jet generated at atmospheric pressure using Mueller polarimetry on an electro-optic target. The influence of the AC kHz operating frequency is examined by simultaneously obtaining images of the induced electric field and temperature of the target. The technique offers high sensitivity in the determination of the temperature variation on the level of single degrees. Simultaneously, the evolution of the electric field in the target caused by plasma-driven charge accumulation can be measured with the threshold of the order of 105 V/m. Even though a specific electro-optic crystal is used to obtain the results, they are generally applicable to dielectric targets under exposure of a plasma jet when they are of 0.5 mm thickness, have a dielectric constant greater than 4 and are at floating potential. Other techniques to examine the induced electric field in a target do not exist to the best of our knowledge, making this technique unique and necessary. The influence of the AC kHz operating frequency is important because many plasma jet designs used throughout the world operate at different frequency which changes the time between the ionization waves and hence the leftover species densities and stability of the plasma. Results for our jet show a linear operating regime between 20 and 50 kHz where the ionization waves are stable and the temperature increases linearly by 25 K. The charge deposition and induced electric fields do not increase significantly but the surface area does increase due to an extended surface propagation. Additionally, temperature mapping using a 100 μm GaAs probe of the plasma plume area has revealed a mild heat exchange causing a heating of several degrees of the helium core while the surrounding air slightly cools. This peculiarity is also observed without plasma in the gas plume.
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Experimental Investigation on the Influence of Target Physical Properties on an Impinging Plasma Jet. PLASMA 2019. [DOI: 10.3390/plasma2030029] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
The present work aims to investigate the interaction between a plasma jet and targets with different physical properties. Electrical, morphological and fluid-dynamic characterizations were performed on a plasma jet impinging on metal, dielectric and liquid substrates by means of Intensified Charge-Coupled Device (ICCD) and high-speed Schlieren imaging techniques. The results highlight how the light emission of the discharge, its time behavior and morphology, and the plasma-induced turbulence in the flow are affected by the nature of the target. Surprisingly, the liquid target induces the formation of turbulent fronts in the gas flow similar to the metal target, although the dissipated power in the former case is lower than in the latter. On the other hand, the propagation velocity of the turbulent front is independent of the target nature and it is affected only by the working gas flow rate.
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Abstract
Acinetobacter baumannii is a typically short, almost round, rod-shaped (coccobacillus) Gram-negative bacterium. It can be an opportunistic pathogen in humans, affecting people with compromised immune systems, and it is becoming increasingly important as a hospital-associated (nosocomial) infection. It has also been isolated from environmental soil and water samples. In this work, unlike conventional medical methods like antibiotics, the influence of atmospheric-pressure cold plasma on this bacterium is evaluated by means of a colony count technique and scanning electron microscopy. The plasma used here refers to streamers axially propagating into a helium channel penetrating the atmospheric air. The plasma is probed with high resolution optical emission spectroscopy and copious reactive species are unveiled under low-temperature conditions. Based on the experimental results, post-treatment (delayed) biochemical effects on Acinetobacter baumannii and morphological modifications appear dominant, leading to complete deactivation of this bacterium.
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Busco G, Fasani F, Dozias S, Ridou L, Douat C, Pouvesle JM, Robert E, Grillon C. Changes in Oxygen Level Upon Cold Plasma Treatments: Consequences for RONS Production. IEEE TRANSACTIONS ON RADIATION AND PLASMA MEDICAL SCIENCES 2018. [DOI: 10.1109/trpms.2017.2775705] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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