Advanced Search+
Danijela VUJOŠEVIC, Uroš CVELBAR, Urška REPNIK, Martina MODIC, Saša LAZOVIC, Tina ZAVAŠNIK-BERGANT, Nevena PUAC, Boban MUGOŠA, Evangelos GOGOLIDES, Zoran Lj PETROVIC, Miran MOZETIC. Plasma effects on the bacteria Escherichia coli via two evaluation methods[J]. Plasma Science and Technology, 2017, 19(7): 75504-075504. DOI: 10.1088/2058-6272/aa656b
Citation: Danijela VUJOŠEVIC, Uroš CVELBAR, Urška REPNIK, Martina MODIC, Saša LAZOVIC, Tina ZAVAŠNIK-BERGANT, Nevena PUAC, Boban MUGOŠA, Evangelos GOGOLIDES, Zoran Lj PETROVIC, Miran MOZETIC. Plasma effects on the bacteria Escherichia coli via two evaluation methods[J]. Plasma Science and Technology, 2017, 19(7): 75504-075504. DOI: 10.1088/2058-6272/aa656b

Plasma effects on the bacteria Escherichia coli via two evaluation methods

Funds: The financial support from the Slovenian Research Agency (ARRS), NATO CLG/SPS.984555 and EU COST grant MP1101 is gratefully acknowledged. NP, SL and ZLP are grateful to the MESS 171037 and 41011 projects for partial support..
More Information
  • The degradation of Escherichia coli bacteria by treatment with cold, weakly ionised, highly dissociated oxygen plasma, with an electron temperature of 3 eV, a plasma density of 8×1015 m−3 and a neutral oxygen atom density of 3.5×1021 m−3 was studied. To determine the ‘real’ plasma effects, two methods were used for evaluation and determination, as well as a comparison of the number of bacteria that had survived: the standard plate count technique (PCT) and advanced fluorescence-activated cell sorting (FACS). Bacteria were deposited onto glass substrates and kept below 50 °C during the experiments with oxygen plasma. The results showed that the bacteria had fully degraded after about 2 min of plasma treatment, depending slightly on the amount of bacteria that had been?deposited on the substrates. The very precise determination of the O flux on the substrates and the two-method comparison allowed for the determination of the critical dose of oxygen atoms required for the destruction of a bacterial cell wall—about 6×1024 m−2—as well as deactivation of the substrates—about 8×1025 m−2. These results were taken in order to discuss other results obtained by comparable studies and scientific method?evaluations in the determination of plasma effects on bacteria.
  • Related Articles

    [1]Xu ZHOU, Xianhui CHEN, Taohong YE, Minming ZHU, Weidong XIA. Numerical study of the effect of coflow argon jet on a laminar argon thermal plasma jet[J]. Plasma Science and Technology, 2022, 24(5): 055409. DOI: 10.1088/2058-6272/ac52eb
    [2]Jianyang YU (俞建阳), Huaping LIU (刘华坪), Ruoyu WANG (王若玉), Fu CHEN (陈浮). Numerical study of the flow structures in flat plate and the wall-mounted hump induced by the unsteady DBD plasma[J]. Plasma Science and Technology, 2017, 19(1): 15502-015502. DOI: 10.1088/1009-0630/19/1/015502
    [3]LI Guozhan(李国占), CHEN Fu(陈浮), LI Linxi(李林熙), SONG Yanping(宋彦萍). Large Eddy Simulation of the E?ects of Plasma Actuation Strength on Film Cooling Efficiency[J]. Plasma Science and Technology, 2016, 18(11): 1101-1109. DOI: 10.1088/1009-0630/18/11/08
    [4]R. KHOSHKHOO, A. JAHANGIRIAN. Numerical Simulation of Stall Flow Control Using a DBD Plasma Actuator in Pulse Mode[J]. Plasma Science and Technology, 2016, 18(9): 933-942. DOI: 10.1088/1009-0630/18/9/10
    [5]XU Qian(徐倩), DING Rui(丁锐), YANG Zhongshi(杨钟时), NIU Guojian(牛国鉴), K. OHYA, LUO Guangnan(罗广南). PIC-EDDY Simulation of Different Impurities Deposition in Gaps of Carbon Tiles[J]. Plasma Science and Technology, 2014, 16(6): 562-566. DOI: 10.1088/1009-0630/16/6/04
    [6]WEI Yu(魏钰), ZUO Xiao(左潇), CHEN Longwei(陈龙威), MENG Yuedong(孟月东), FANG Shidong(方世东), SHEN Jie(沈洁), SHU Xingsheng(舒兴胜). Linear Plasma Sources for Large Area Film Deposition: A Brief Review[J]. Plasma Science and Technology, 2014, 16(4): 356-362. DOI: 10.1088/1009-0630/16/4/10
    [7]YANG Fei (杨飞), RONG Mingzhe (荣命哲), WU Yi (吴翊), SUN Hao (孙昊), MA Ruiguang (马瑞光), NIU Chunping (纽春萍). Numerical Simulation of the Eddy Current Effects in the Arc Splitting Process[J]. Plasma Science and Technology, 2012, 14(11): 974-979. DOI: 10.1088/1009-0630/14/11/05
    [8]LV Xiaogui (吕晓桂), REN Chunsheng (任春生), MA Tengcai (马腾才), Feng Yan (冯岩), WANG Dezhen (王德真). An Atmospheric Large-Scale Cold Plasma Jet[J]. Plasma Science and Technology, 2012, 14(9): 799-801. DOI: 10.1088/1009-0630/14/9/05
    [9]DING Liang (丁亮), HUO Wenqing (霍文青), YANG Xinjie (杨新杰), XU Yuemin (徐跃民). The Interaction of C-Band Microwaves with Large Plasma Sheets[J]. Plasma Science and Technology, 2012, 14(1): 9-13. DOI: 10.1088/1009-0630/14/1/03
    [10]LI Jiquan, Y. KISHIMOTO. Wave-Number Spectral Characteristics of Drift Wave Micro-Turbulence with Large-Scale Structures[J]. Plasma Science and Technology, 2011, 13(3): 297-301.
  • Cited by

    Periodical cited type(5)

    1. Niu, Y., Bao, W., Liu, D. et al. Analysis of enthalpy and energy conversion efficiency in high-power inductively coupled plasma. Vacuum, 2024. DOI:10.1016/j.vacuum.2024.113220
    2. Zhou, X., Chen, X., Ye, T. et al. Quasi-direct numerical simulations of the flow characteristics of a thermal plasma reactor with counterflow jet. Plasma Science and Technology, 2023, 25(7): 075403. DOI:10.1088/2058-6272/acb9d8
    3. Niu, Y., Bao, W., Liu, D. et al. Thermodynamic Parameters and Energy Transfer Analysis of High Enthalpy Inductively Coupled Plasma. 2023. DOI:10.1109/CSRSWTC60855.2023.10427285
    4. Zhou, X., Chen, X., Ye, T. et al. Numerical study of the effect of coflow argon jet on a laminar argon thermal plasma jet. Plasma Science and Technology, 2022, 24(5): 055409. DOI:10.1088/2058-6272/ac52eb
    5. Bykov, N.Y., Obraztsov, N.V., Hvatov, A.A. et al. Hybrid modeling of gas-dynamic processes in AC plasma torches. Materials Physics and Mechanics, 2022, 50(2): 287-303. DOI:10.18149/MPM.5022022_9

    Other cited types(0)

Catalog

    Article views (269) PDF downloads (662) Cited by(5)

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return