Plasma medicine: an introductory review

Kong, Michael G.; Kroesen, Gmw Gerrit; Morfill, G. E.; Nosenko, Tetyana; Shimizu, Tetsuji; Dijk, van J Jan; Zimmermann, J. L.

doi:10.1088/1367-2630/11/11/115012

Cited by 1,405 publications

(1,045 citation statements)

References 186 publications

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“…Note that previous temperature measurements reported for this Plasma Chem Plasma Process plasma jet system design were not carried out in the effluent region [24]. Temperature measurements carried out in this study in the effluent region *10 mm from the nozzle resulted in a lower thermal temperature of 293 K. This indicates that the plasma activated species are rapidly cooled in the expanding effluent region to such a degree that allows heat sensitive treatment of polymeric and composite materials and many medical applications [38]. It has been shown that the temporal dependence of discharges and the presence of metastables can influence the time averaged rotational temperature of the molecules [34].…”

Section: Rotational Temperaturesmentioning

confidence: 71%

Electrical, Thermal and Optical Diagnostics of an Atmospheric Plasma Jet System

Nwankire

Law

Nindrayog³

et al. 2010

Plasma Chem Plasma Process

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Plasma diagnostics of atmospheric plasmas is a key tool in helping to understand processing performance issues. This paper presents an electrical, optical and thermographic imaging study of the PlasmaStream atmospheric plasma jet system. The system was found to exhibit three operating modes; one constricted/localized plasma and two extended volume plasmas. At low power and helium flows the plasma is localized at the electrodes and has the electrical properties of a corona/filamentary discharge with electrical chaotic temporal structure. With increasing discharge power and helium flow the plasma expands into the volume of the tube, becoming regular and homogeneous in appearance. Emission spectra show evidence of atomic oxygen, nitric oxide and the hydroxyl radical production. Plasma activated gas temperature deduced from the rotational temperature of nitrogen molecules was found to be of order of 400 K: whereas thermographic imaging of the quartz tube yielded surface temperatures between 319 and 347 K.

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Section: Rotational Temperaturesmentioning

confidence: 71%

Electrical, Thermal and Optical Diagnostics of an Atmospheric Plasma Jet System

Nwankire

Law

Nindrayog³

et al. 2010

Plasma Chem Plasma Process

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“…Because plasma jets are non-thermal, two of the most rapidly growing fields are surface functionalization [1] and plasma medicine [2] to treat e.g. various biomedical surfaces [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Electric field and temperature in a target induced by a plasma jet imaged using Mueller polarimetry

Slikboer

Sobota

Guaitella

et al. 2017

J. Phys. D: Appl. Phys.

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Mueller polarimetry is used to investigate the behavior of an electro optic target (BSO crystal) under exposure of guided ionization waves produced by an atmospheric pressure plasma jet. For the first time, this optical technique is time resolved to obtain the complete Mueller matrix of the sample right before and after the impact of the discharges. By analyzing the induced birefringence, the spatial profiles and local values are obtained of both the electric field and temperature in the sample. Electric fields are generated due to deposited surface charges and a temperature profile is present, due to the heat transferred by the plasma jet. The study of electric field dynamics and local temperature increase at the target, due to the plasma jet is important for biomedical applications, as well as surface functionalization. This work shows how Mueller polarimetry can be used as a novel diagnostic to simultaneously acquire the spatial distribution and local values of both the electric field and temperature, by coupling the external source of anisotropy to the measured induced birefringence via the symmetry point group of the examined material.

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“…Over the past two decades, nonthermal plasma has been employed as a promising technology for versatile applications in environmental and biological fields [1][2][3][4]. The main feature of nonthermal plasma is the generation of reactive species such as O, O 3 , and OH, which are capable of decomposing organic pollutants and killing microorganisms at the atmospheric pressure and temperature.…”

Section: Introductionmentioning

confidence: 99%

Characterization of surface dielectric barrier discharge influenced by intermediate frequency for ozone production

Abdelaziz

Ishijima

Seto

et al. 2016

Plasma Sources Sci. Technol.

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The aim of this study is to investigate the effect of the intermediate frequency (1-10 kHz) of the sinusoidal driving voltage on the characteristics of a developed surface dielectric barrier discharge (SDBD)-based reactor having spikes on its discharge electrode. Moreover, its influence on the production of ozone and nitrogen oxide byproducts is evaluated. The results show that SDBD is operated in the filamentary mode at all the frequencies. Nevertheless, the pulses of the discharge current at high frequencies are much denser and have higher amplitudes than those at low frequencies. The analysis of the power consumed in the reactor shows that a small portion of the input power is dissipated in the dielectric material of SDBD source, whereas the major part of the power is consumed in the plasma discharge. The results of the ozone production show that higher frequencies have a slightly adverse effect on the ozone production at relatively high energy density values, where the ozone concentration is slightly decreased when the frequency is increased at the same energy density. The temperature of the discharge channels and gas is not a crucial factor for the decomposition of ozone in this reactor, while the results of the measurements of nitrogen oxides characteristics 2 indicate that the formation of NO and NO 2 has a significant adverse effect on the production efficiency of ozone due to their oxidation to another nitrogen oxides and their catalytic effect.

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Plasma medicine: an introductory review

Cited by 1,405 publications

References 186 publications

Electrical, Thermal and Optical Diagnostics of an Atmospheric Plasma Jet System

Electrical, Thermal and Optical Diagnostics of an Atmospheric Plasma Jet System

Electric field and temperature in a target induced by a plasma jet imaged using Mueller polarimetry

Characterization of surface dielectric barrier discharge influenced by intermediate frequency for ozone production

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