Single channel atmospheric pressure transporting plasma and plasma stream demultiplexing: physical characterization and application to<i>E. coli</i>bacteria inactivation

Omran, Azadeh Valinataj; Sohbatzadeh, Farshad; Siadati, S N; Colagar, Abasalt Hosseinzadeh; Akishev, Yu. S.; Arefi‐Khonsari, Farzaneh

doi:10.1088/1361-6463/aa7793

Cited by 5 publications

(2 citation statements)

References 59 publications

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“…Previous investigations have demonstrated that RONS produced by plasma during treatments with jet or SDBD may play an important role in microbial inactivation 43 , 44 . RONS can induce critical damages to the cell wall, cell membrane, or cellular components.…”

Section: Resultsmentioning

confidence: 99%

An innovative strategy to rapidly inactivate 8.2-log Enterococcus faecalis in fresh pineapple juice using cold atmospheric plasma

Sohbatzadeh

Yazdanshenas

Soltani

et al. 2021

Sci Rep

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Enterococcus faecalis is a life-threatening bacterium that resists high levels of antibiotics or chemical preservatives. In this study, we aimed to investigate the inactivation of E. faecalis in fresh pineapple juice (FPJ) with two different cold atmospheric plasmas (CAP) reinforced by H2O2/H2O cold vapor: a plasma jet and a surface dielectric barrier discharge (SDBD). CAP treatments for 300 s with plasma jet and 420 s with SDBD caused an 8.2 log reduction of E. faecalis. The concentration of reactive oxygen and nitrogen species induced in FPJ by plasmas was also evaluated. In terms of quality attributes of FPJ, no noticeable color changes (ΔE) were observed. Furthermore, a trifle of loss of organic content such as sugars and organic acids was observed after treatments. These results suggest that our rapid CAP strategy effectively inactivated E. faecalis in FPJ with no change of color and negligible effects on other physicochemical properties.

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Section: Resultsmentioning

confidence: 99%

An innovative strategy to rapidly inactivate 8.2-log Enterococcus faecalis in fresh pineapple juice using cold atmospheric plasma

Sohbatzadeh

Yazdanshenas

Soltani

et al. 2021

Sci Rep

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“…Non-thermal plasma jets at atmospheric pressure are useful tools in many applications [1][2][3][4][5][6][7][8][9][10]. Plasma jets formed from inert feedstock gases (He, Ar, N 2 and their mixtures) are the most popular ones.…”

Section: Introductionmentioning

confidence: 99%

On the composition of reactive species in air plasma jets and their influence on the adhesion of polyurethane foam to low-pressure polyethylene

Akishev¹,

Aponin²,

Petryakov³

et al. 2018

J. Phys. D: Appl. Phys.

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In this paper, non-thermal plasma sources based on the high-frequency sinusoidal coaxial dielectric barrier discharge (DBD) using fast flowing ambient air as feedstock gas at atmospheric pressure are described. These single- and multi-tube sources are able to generate low- and high-power turbulent plasma jets. Experimental results on both the spatio-temporal behavior of plasma inside the DBD and parameters of plasma jet(s) outside the discharge zone are presented. These results are complemented by information on the composition of reactive species generated by high-power airflow DBD. This information has been obtained from analysis of the emissive spectra of the discharge zone and plasma jet in the UV–visual region. The basic set of elementary plasma-chemical processes responsible for the generation of reactive species in the discharge zone and their further changes in hot air plasma jet is also presented. Although the oxygen concentration in the working gas is high, the concentration of reactive species in the plasma jet is enough for effective surface treatment. This is proved by the essential improvement in the adhesion of polyurethane foam (PF) to low-pressure polyethylene (PE) after treatment by the hot air plasma jet. The changes in the spatial microstructure of the scaffolds on PE surfaces taking place after plasma treatment have been established. The reasons for the adhesion improvement are discussed. The results obtained are of both scientific and practical interest, since PE pipes covered with PF are used in the housing and community sectors, the oil and gas industry, etc.

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Atmospheric pressure surface modification and cross‐linking of UHMWPE film and inside HDPE tube by transporting discharge

Omran

Baitukha

Pulpytel

et al. 2017

Plasma Processes & Polymers

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In this work, the surface modification of ultra‐high‐molecular‐weight polyethylene (UHMWPE), a linear polymer, by a helium transporting discharge at atmospheric pressure was investigated by means of FTIR, AFM, XPS, ToF‐SIMS, and contact angle measurements. Two types of discharge configurations, that is, jet and glow of the transporting discharge for the surface treatment of polymer substrates were studied. The results show that the position of the UHMWPE polymer substrates plays an important role in the surface modification and stability of the treatment. The polymer substrates placed inside the transporting discharge tube present more stable wettability and surface modification. In addition, the transporting discharge was used to modify the inner surface of the high density polyethylene tube.

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Single channel atmospheric pressure transporting plasma and plasma stream demultiplexing: physical characterization and application toE. colibacteria inactivation

Cited by 5 publications

References 59 publications

An innovative strategy to rapidly inactivate 8.2-log Enterococcus faecalis in fresh pineapple juice using cold atmospheric plasma

An innovative strategy to rapidly inactivate 8.2-log Enterococcus faecalis in fresh pineapple juice using cold atmospheric plasma

On the composition of reactive species in air plasma jets and their influence on the adhesion of polyurethane foam to low-pressure polyethylene

Atmospheric pressure surface modification and cross‐linking of UHMWPE film and inside HDPE tube by transporting discharge

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