Jun-Seok Oh

写真a

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Title

Professor

Laboratory location

Sugimoto Campus

Mail Address

E-mail address

Profile

Jun-Seok Oh currently working at Graduate School of Engineering, Osaka City University, Osaka, Japan. He does research in Experimental Plasma Physics and currently interests in atmospheric pressure plasma applications, 'Plasma Medicine' and 'Plasma Agriculture'.

Degree 【 display / non-display

  • Kyoto University -  Doctor of Philosophy

Research Areas 【 display / non-display

Plasma process engineering

Research subject summary 【 display / non-display

  • Research on various non-thermal atmospheric pressure applications including material process, biology, agriculture, and medicine, based on the plasma diagnostic techniques.

Research Interests 【 display / non-display

plasma bio, plasma medicine, Plasma diagnostic, non-thermal atmospheric pressure plasma, material process

Research Career 【 display / non-display

  • Investigation of in situ VUV absorption spectroscopy for quantitative analysis of plasma activated water

    (Individual) Project Year :

    2017.04
    -
    2020.03

  • In-situ analysis of rare metal ions under deep sea by optical emission spectroscopy of discharge plasma operated in high-pressure water

    (Collaboration in Organization) Project Year :

    2014.04
    -
    2016.03

Association Memberships 【 display / non-display

  • The Japan Society of Plasma Science and Nuclear Fusion Research

  • MRS-J

  • The Japan Society of Applied Physics

  • Institute of Physics (IOP)

Committee Memberships 【 display / non-display

  • 2019.05
    -
    Today

    Plasma Cosmetic Consortium   International Committee

Awards & Honors 【 display / non-display

  • Best Presentation Award

    Dependency of Bactericidal Effect in Oxygen Radical-Exposed E. Coli Suspension Containing L-Tryptophan on its Concentration

    2021.03.11   ISPlasma2021 / IC-PLANS2021 Organizing Committee & Program Committee

    Winner : Naoyuki Itawa/Nagoya Univ., Kenji Ishikawa/Nagoya Univ., Hiroshi Hashizume/Nagoya Univ., Hiromasa Tanaka/Nagoya Univ., Jun-Seok Oh/Osaka City Univ., Masafumi Ito/Meijo Univ., Masaru Hori/Nagoya Univ.,

  • Most Cited Paper Award

    Investigating the effect of additional gases in an atmospheric-pressure helium plasma jet using ambient mass spectrometry

    2019.07.19   ICPR-10

    Winner : Jun-Seok Oh, Hiroshi Furuta, Akimitsu Hatta, James W. Bradley

  • Best Presentation Award

    Simaltaneous achievement of bactericidal efficacy and plant-growth in neutral pH range using radical-activated benzoic compounds

    2019.03.17   ISPlasma2019/IC-PLANTS019

    Winner : Naoyuki Iwata, Gamaleev Vladislav, Jun-Seok Oh, Hiroshi Hashizume, Takayuki Ohta, Kenji Ishikawa, Masaru Hori, Masafumi Ito

Current Career 【 display / non-display

  • Osaka City University   Graduate School of Engineering   Physical Electronics and Informatics Course   Professor  

Graduate School 【 display / non-display

  • 2003.10
    -
    2006.09

    Kyoto University  Graduate School, Division of Engineering 

Graduating School 【 display / non-display

  • 1994.03
    -
    2001.02

    Kwangwoon University   Faculty of Science   Electrophysics

 

Published Papers 【 display / non-display

  • In vivo study on the healing of bone defect treated with non-thermal atmospheric pressure gas discharge plasma

    Akiyoshi Shimatani, Hiromitsu Toyoda, Kumi Orita, Yoshihiro Hirakawa, Kodai Aoki, Jun-Seok Oh, Tatsuru Shirafuji, Hiroaki Nakamura

    PLOS ONE  16 ( 10 ) e0255861 2021.10  [Refereed]

     View Summary

    Medical treatment using non-thermal atmospheric pressure plasma (NTAPP) is rapidly gaining recognition. NTAPP is thought to be a new therapeutic method because it could generate highly reactive species in an ambient atmosphere which could be exposed to biological targets (e.g., cells and tissues). If plasma-generated reactive species could stimulate bone regeneration, NTAPP can provide a new treatment opportunity in regenerative medicine. Here, we investigated the impact of NTAPP on bone regeneration using a large bone defect in New Zealand White rabbits and a simple atmospheric pressure plasma (helium microplasma jet). We observed the recovery progress of the large bone defects by X-ray imaging over eight weeks after surgery. The X-ray results showed a clear difference in the occupancy of the new bone of the large bone defect among groups with different plasma treatment times, whereas the new bone occupancy was not substantial in the untreated control group. According to the results of micro-computed tomography analysis at eight weeks, the most successful bone regeneration was achieved using a plasma treatment time of 10 min, wherein the new bone volume was 1.51 times larger than that in the plasma untreated control group. Using H&E and Masson trichrome stains, nucleated cells were uniformly observed, and no inclusion was confirmed, respectively, in the groups of plasma treatment. We concluded the critical large bone defect were filled with new bone. Overall, these results suggest that NTAPP is promising for fracture treatment.

    DOI

  • Total reflection X-ray fluorescence analysis with a glass substrate treated with a He atmospheric pressure plasma jet

    Kouichi Tsuji, Tsugufumi Matsuyama, Tsuneo Fukuda, Soichiro Shima, Mayuko Toba, Jun-Seok Oh, Tatsuru Shirafuji

    Journal of Analytical Atomic Spectrometry  36 ( 9 ) 1873 - 1878 2021.06  [Refereed]

     View Summary

    Total reflection X-ray fluorescence (TXRF) is a powerful technique for trace elemental analysis of various liquid samples. A small volume of the liquid sample is dropped onto a flat substrate, and the dried residue is measured using TXRF. Usually, the substrate surface is treated with a silicone solution to make it hydrophobic. Such hydrophobic substrates are useful to concentrate the analyte at a small point, leading to a dot-type residue. However, the solution sample will provide a residue with a height of several tens of mm depending on the matrix of the solution, in which self-absorption is a serious problem. In this paper, the authors applied a He atmospheric pressure plasma jet (APPJ) treatment to a glass substrate to obtain a hydrophilic surface. The chemical properties of the glass substrate surface were drastically changed by the application of the He APPJ. The contact angle of the liquid droplet was 5.2 on the APPJ-treated glass, while it was 88.8 on the glass with a silicone layer. A droplet of the liquid solution smoothly spread over the APPJ-treated glass substrate, leading to a thin film-like residue. The recovery and detection limits for TXRF analysis of a standard solution sample were improved especially for low-Z elements by using the APPJ-treated glass substrates. This new sample preparation technique was also applied for TXRF analysis of a red wine sample. We found that this hydrophilic glass substrate gave a film-like residue from a small droplet of the red wine. Reasonable TXRF quantitative results were obtained by the Ga internal standard method. The preliminary experimental results suggested that the film-type residue produced on the APPJ-treated substrate was effective in decreasing the matrix effect especially for low-Z elements.

    DOI

  • Identification of key neutral species in atmospheric‐pressure plasma for promoting proliferation of fibroblast cells

    Yuki Hori, Naoyuki Iwata, Vladislav Gamaleev, Jun‐Seok Oh, Tomiyasu Murata, Masaru Hori, Masafumi Ito

    Plasma Processes and Polymers    ppap.202000225 2021.01  [Refereed]

  • Time of flight size control of carbon nanoparticles using Ar+CH4 multi-hollow discharge plasma chemical vapor deposition method

    Sung Hwa Hwang, Kazunori Koga,Yuan Hao, Pankaj Attri, Takamasa Okumura, Kunihiro Kamataki, Naho Itagaki, Masaharu Shiratani, Jun-Seok Oh, Susumu Takabayashi, Tatsuyuki Nakatani

    Processes  9 ( 1 ) 2 2020.12  [Refereed]

  • Inactivation mechanism of fungal spores through oxygen radicals in atmospheric-pressure plasma

    Masafumi Ito, Hiroshi Hashizume, Jun-Seok Oh, Kenji Ishikawa, Takayuki Ohta, Masaru Hori

    Japanese Journal of Applied Physics  60   010503 2020.12  [Refereed]  [Invited]

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Review Papers (Misc) 【 display / non-display

  • Center for Nanotechnology, Research Institute Activity Report 2014

    新田 紀子, 李 朝陽, 川原村 敏幸, 八田 章光, 古田 寛, 呉 準席, 古田 守, 王 大鵬, 前田 敏彦, 小廣 和哉, 大谷 政孝, 河野 日出夫, 百田 佐多生

    高知工科大学, 高知工科大学紀要  12 ( 1 ) 139 - 153 2015.07  [Refereed]  [Invited]

     View Summary

    調査・活動報告

    CiNii

  • Institute for Nanotechnology Activity Report 2013

    新田 紀子, 李 朝陽, 川原村 敏幸, 八田 章光, 古田 寛, 呉 準席, 古田 守, 王 大鵬, 百田 佐多生

    高知工科大学, 高知工科大学紀要  11 ( 1 ) 241 - 256 2014.07  [Refereed]  [Invited]

     View Summary

    調査・活動報告

    CiNii

Conference Activities & Talks 【 display / non-display

  • Visualization of plasma treatment on 3D printed bone defect model

    Kodai Aoki, Shunya Hashimoto, Akiyoshi Shimatani, Hiromitsu Toyoda, Hiroaki Nakamura, Tatsuru Shirafuji, Jun-Seok Oh

    8th International Conference on Plasma Medicine  2021.08 

  • Effect of non-thermal plasma irradiation on the biological targets; Model tissue, culture dermis, and live mouse

    Jun-Seok Oh, Endre Szili, Hideo Fukuhara, Rob Short, Akimitsu Hatta, Masafumi Ito, Keiji Inoue  [Invited]

    8th International Conference on Plasma Medicine  2021.08 

  • Spatiotemporal behavior of surface temperature on the mouse skin during plasma irradiation

    Shunya Hashimoto, Kodai Aoki, Tatsuru Shirafuji, Hideo Fukuhara, Chiaki Kawada, Keiji Inoue, Masayuki Tsuda, Endre J. Szili, Jun-Seok Oh

    8th International Conference on Plasma Medicine  2021.08 

  • Investigating the interactions of plasma with DNA: Towards safer plasma jet treatments

    Nishtha Gaur, Endre Szili, Hirofumi Kurita, Saki Miyachika, Jun-Seok Oh, Masafumi Ito, Akira Mizuno, Bhagirath Ghimire, Sarah Allinson, Allison Cowin, Robert Short

    8th International Conference on Plasma Medicine  2021.08 

  • Contactless plasma jet treatment of a cancer tumour

    Endre Szili, Jun-Seok Oh, Keiji Inoue, Rob short, Hideo Fukuhara  [Invited]

    8th International Conference on Plasma Medicine  2021.08 

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Grant-in-Aid for Scientific Research 【 display / non-display

  • Investigation of in situ VUV absorption spectroscopy for quantitative analysis of plasma activated water

    Grant-in-Aid for Scientific Research(C) Representative

    Project Year :

    2017.04
    -
    2020.03
     

  • In-situ analysis of rare metal ions under deep sea by optical emission spectroscopy of discharge plasma operated in high-pressure water

    Grant-in-Aid for challenging Exploratory Research Partaker / Other

    Project Year :

    2014.04
    -
    2016.03
     

 

Charge of on-campus class subject 【 display / non-display

  • Graduation Research

    (2018) University, Special course

  • Digital Electronic Circuits

    (2018) University, Special course

  • Plasma Medicine

    (2018) Graduate school, Special course