Effect of DC magnetic field on atmospheric pressure argon plasma jet

Safari, R.; Sohbatzadeh, Farshad

doi:10.1007/s12648-014-0609-0

Cited by 13 publications

(6 citation statements)

References 11 publications

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“…on it [28][29][30]. Spectra shows that plasma composition for any arbitrary considered input powers are the same for two cases CAP and CAP+SMF but emission intensity increase in the presence of SMF, which is in agreement with previous result about RS and emission intensity of CAP in the presence of SMF [27,31]. 22 HO known as a main species in plasma treated medium that affect the biological system, and it is shown that production of 22 HO in plasma treated medium is not affected by SMF [27].…”

Section: Resultssupporting

confidence: 90%

Improving Cold Atmospheric Pressure Plasma Efficacy on Breast Cancer Cells Control-Ability and Mortality Using Vitamin C and Static Magnetic Field

Mehrabifard

Mehdian

Hajisharifi

et al. 2019

Plasma Chem Plasma Process

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Since the last decades, there have been numerous reports about the interaction of magnetic field (MF) and cold atmospheric plasma (CAP) with the biological systems, separately. In this manuscript, we have investigated the combined effect of CAP with the static magnetic field (SMF) as an effective method for cancer cells treatment. MDA-MB-231 breast cancer cells were cultured and treated with CAP in different input power and different exposure time in the presence and absence of the SMF. Vitamin C is used in medium, and cell viability is investigated in the presence and absence of this antioxidant compound. The MTT assay has been employed to measure cell survival, and then T-test and one-way ANOVA are used to assess the significance level of quantitative data. In order to determine the migration rate of cancer cells, wound healing assay has been carried out. Results show that presence of the SMF and vitamin C as well as increasing the input power has a significant role on the attenuation of the survival and migration rate of the cells. The results of the present investigation will greatly contribute to improve the CAP efficiency in cancer therapy through using the SMF and vitamin C as a complement to conventional CAP therapies.

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Section: Resultssupporting

confidence: 90%

Improving Cold Atmospheric Pressure Plasma Efficacy on Breast Cancer Cells Control-Ability and Mortality Using Vitamin C and Static Magnetic Field

Mehrabifard

Mehdian

Hajisharifi

et al. 2019

Plasma Chem Plasma Process

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“…It is, thus, highly interesting to understand what the effect will be at the plasma/ surface interface with a magnetic-assisted field under atmospheric-pressure conditions. Past studies applying magnetic field in the free-jet region of APPJ [23,24] have shown some interesting results. In this study, we would like to address this interesting yet important problem in a different way, where we focus on investigating the magnetic-field effect in the plasma/ substrate interface.…”

Section: Introductionmentioning

confidence: 98%

Effects of assisted magnetic field to an atmospheric-pressure plasma jet on radical generation at the plasma-surface interface and bactericidal function

Liu

Kumakura

Ishikawa

et al. 2016

Plasma Sources Sci. Technol.

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A configuration of magnetic-assisted-plasma (MAP) on helium-based atmospheric-pressure plasma jet (APPJ) with an axial magnetic-field of 0.587 T is proposed, which provides good ability for killing bacteria Escherichia coli on the agar surface. Optically, we confirmed that the MAP increased approximately 2.4 times in the electron density estimated by the Stark broadening of H β line emission, and approximately 1.5 times enhancement of atomic oxygen concentration measured by vacuum ultraviolet absorption spectroscopy (VUVAS). Moreover, the generation of hydroxyl radical in the water increased 1.5 times, confirmed by the spin-trapping electron spin-resonance technique. In addition, the bactericidal experiments demonstrated 2.4 times higher for E. coli by the MAP treatment. The MAP configuration is proposed to be highly useful for future bio-medical applications by enhancing the radical generation at the plasma/substrate interface region.

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“…Some researchers [41][42][43] found that the introduction of the magnetic field enhances the discharge of plasma jets and the GA could also be pulled and stretched by the Lorentz force. Therefore, in this paper, we apply an external magnetic field to make the direction of Lorentz force on the discharge channel opposite to that of gas flow, so that the drag force of the air flow is offset and the motion of discharge channel is suppressed as much as possible.…”

Section: Introductionmentioning

confidence: 99%

An atmospheric pressure glow discharge in air stabilized by a magnetic field and its application on nitrogen fixation

Nie

Liu

et al. 2022

Plasma Processes & Polymers

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An atmospheric pressure glow discharge in air stabilized by a magnetic field is reported. The plasma is fixed at a position when the direction of the Lorentz force and the direction of the air flow is opposite. Under such condition, a stable glow discharge can be achieved and the plasma parameters can be independently controlled by the applied voltage, the magnetic field and the air flow rate, which is not the case for the widely used gliding arc (GA) discharge. For applied voltage of 6.5 kV, air flow rate of 2 L min −1 , and magnetic field of 0.11 T perpendicular to the paper pointing outward, the discharge voltage (V dis ) and discharge current (I dis ) are 1.2 kV and 49.7 mA, respectively. The rotational and vibrational temperature is about 3420 K and 4550 K, respectively. The electron density is on the order of 10 14 cm −3 and the reduced electric field of plasma is about 36.9 Td, which is favorable for vibrational excitation of N 2 to promote the production of NO x . As the plasma is fixed at a position, all the gas has to pass the plasma region and treated by the plasma when they are flowing, which is not the case for GA discharge where only a little percentage of gas is actually treated by the plasma. The energy cost of NO x production for the plasma stabilized by magnetic field of 0.19 T pointing outward is about 2.65 MJ mol −1 , which is 41% lower than the GA discharge.

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Effect of DC magnetic field on atmospheric pressure argon plasma jet

Cited by 13 publications

References 11 publications

Improving Cold Atmospheric Pressure Plasma Efficacy on Breast Cancer Cells Control-Ability and Mortality Using Vitamin C and Static Magnetic Field

Improving Cold Atmospheric Pressure Plasma Efficacy on Breast Cancer Cells Control-Ability and Mortality Using Vitamin C and Static Magnetic Field

Effects of assisted magnetic field to an atmospheric-pressure plasma jet on radical generation at the plasma-surface interface and bactericidal function

An atmospheric pressure glow discharge in air stabilized by a magnetic field and its application on nitrogen fixation

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