Plasma-based in situ functionalization based on functional nitrogen science

Functional nitrogen science is now emerged for effective utilization of reactive nitrogen species (RNS). The technologies are related to water and air plasma-based nitrogen fixation. Electron impact reactions and chemical reactions among nitrogen, oxygen, and hydrogen, can occur on non-equilibrium plasma processing. Key issues are on in situ generation of RNS at the point of use and plasma-based nitrogen cycles of ammonia and nitric acid. (link to) Ishikawa Jpn. J. Appl. Phys. 61 SA0802 (2022).

Nitrogen derivatives (Diagram): Short-lived nitrogen derivatives react to generate various RNS in situ through oxidation and hydrogenation.

Upcoming meeting

Color: Oversea, Domestic


December 4-5, 2023
Lecture (10)
December 5, 2023
特別講義 樋口(中部電力),会合
December 6, 2023
博士2年 胡,阪本 中間報告会 於:ES会議室
December 7, 2023
December 7, 2023
December 8, 2023
グリーンDXプラズマコンソーシアム(CGDX) 2023年度第5回定期講習会
December 8, 2023
December 9, 2023
第27回サタデーモーニングプラズマプロセス講座 オンライン 豊田浩孝 モデレータ 関根誠
December 9, 2023
会合(COI-NEXTプログラム)(online Closed)
December 11-12, 2023
Lecture (11)
December 11, 2023
JICA-JISNASシンポジウム2023 「ODA大綱における国際頭脳循環への取り組み」 於:JICA本部 1階113会議室(市ヶ谷, 東京都) (Web), (Web)
December 11-16, 2023
(MRM2023) IUMRS-ICA Kyoto International Conference Center, Kyoto, Japan (Web) Symposium G-1 Advanced Plasma Processing in the New Era will be held.
December 12, 2023
会合 ES会議室
December 12, 2023
特別講義 加藤良文(デンソー)
December 16, 2023
プラズマ種子科学会合 (Closed) 於:EI創発工学館FUJIホール
December 16, 2023
第二回石井健一郎賞 榊原均「植物の柔軟かつ頑健な生き方を支える情報分子」 (Web)
December 17-21, 2023
(not attend) 97th IUVSTA Workshop on plasma-assisted conversion of gases for a sustainable future to be held at Cerklje na Gorenjskem, Slovenia. (Web)
December 18-19, 2023
Lecture (12)
December 18, 2023
December 19, 2023
特別講義 大橋(富士通)
December 19, 2023
December 21, 2023
相談会 大掃除
December 22, 2023
December 25-26, 2023
Lecture (13)
December 25, 2023
December 28, 2023


January 6, 2023
第37回上田記念講演会 於:名古屋大学 IB電子情報館2階 IB大講義室 (Web)
January 6-7, 2023
第二回プラズマ種子科学研究会 於:EI創発工学館 FUJIホール (Web), (Web), (日本植物学会), 日本植物生理学会,
January 15-16, 2023
Lecture (14)
January 15-16, 2023
会合 於:九州大学
January 15-18, 2024
ICMAP (not attend) 9th International Conference on Microelectronics and Plasma Technology (ICMAP 2024) to be held at Booyoung Hotel & Resort Jeju, Korea. (Web) Deadline: November 10 October 6, 2023
January 17, 2024
研究室見学 (Closed)
January 17-19, 2024
(not attend) 5th International Symposium of the Vacuum Society of the Philippines (ISVSP 2024) to be held at Baguio, Philippines (Web)
January 20, 2024
第28回サタデーモーニングプラズマプロセス講座 オンライン 辰巳哲也 モデレータ
January 22-23, 2024
Lecture (15) 期末試験
January 22, 2023
January 23-25, 2024
SPP 41st Symposium on Plasma Processing (SPP-41) to be held at Ohokayama campus of Tokyo Institute of Technology, Japan. (Web) Deadline: the end of October, 2023
January 25, 2024
January 31, 2024
(Closed) R052 DXプラズマ研究会 第四回研究会 於:仙台
February 3, 2024
February 13-14, 2024
February 20, 2024
On-Line Low Temperature Plasma Seminar (OLTP), (Web) Dr Ishikawa will have an invited lecture entitled "Low temperature plasma life innovations"
February 21, 2024
(Closed) 拠点運営会議
February 29, 2024
March 1, 2024
グリーンDXプラズマコンソーシアム(CGDX) 2023年度第6回定期講習会
March 3-7, 2024
ISPlasma 16th International Symposium on Advanced Plasma Science and its application for nitrides and nanomaterials, 17th International Conference on Plasma nanotechnologies and sciences (ISPlasma 2024/IC-PLANTS 2024) and 13th Asia-Pacific International Symposium on the basic and applications of plasma technology (APSPT) to be held at Nagoya University, Japan. (Web) Deadline is October 27 October 13, 2023.
March 11, 2024
(Closed) 拠点戦略会議
March 15-18, 2024
応物春 2024年(令和6年)第71回応用物理学会 春季学術講演会 to be held on Tokyo City University, Tokyo, Japan.
April 17-20, 2024
ICEP International Conference on Electronics Packaging (ICEP) to be held at Toyama, Japan. (Web) Deadline is November 8 October 30, 2023.
June 10-12, 2024
International Workshop on Plasma Cryogenic Etching Processes (PlaCEP) to be held at IMEC in Leuven, Belgium (Web) Dr Sekine will have an invited talk.
July 9-13, 2024
Europhysics Conference on Atomic and Molecular Physics of Ionized Gases 2024 (ESCAMPIG) in Masaryk University (MUNI), Brno, the Czech Republic (Web)
August 12-16, 2024
ALD/ALE 24th International Conference on Atomic Layer Deposition (ALD 2024) and the 11th International Atomic Layer Etching Workshop (ALE 2024) to be held at Messukeskus in Helsinki, Finland. (Web) Abstract submission Deadline is February 15, 2024
August 12-16, 2024
ICDDPS 5th International Conference on Data-Driven Plasma Science (ICDDPS-5) to be held in Berkeley, USA. (Web) Deadline is January 12, 2024.
September 8-13 2024
ICPM 10th International Conference on Plasma Medicine (ICPM10), together with 9th International Workshop on Plasma for Cancer Treatment (IWPCT) to be held in LifeClass Hotels & Spa Portorož, Slovenia. Deadline is March 10, 2023.
September 16-20, 2024
応物秋 2024年(令和6年)応用物理学会 秋季学術講演会 to be held at Toki Messe (朱鷺メッセ), Niigata, Japan.
October, 2024
GEC 77th Annual Gaseous Electronics Conference (GEC) to be held at San Diego, California, USA.
November 3-8, 2024
AVS 70th AVS International Symposium & Exhibition to be held at Tampa Convention Center, Tampa, Florida (Web)
November 14-15, 2024
DPS 45th International symposium on dry process (DPS) to be held at Chitose, Hokkaido, Japan.
November 17-20, 2024
プラ核 プラズマ核融合学会年会 於:タワーホール船堀(東京都)
December 1-6, 2024
MRS 2024 MRS Fall Meeting & Exhibit, to be held at Boston, Massachusetts, USA Dr Hori will organize and chair a symposium.


March , 2025
ISPlasma ISPlasma 2025 to be held at Kasugai campus of Chubu University, Japan.
March 14-17, 2025
応物春 2025年(令和7年)第72回応用物理学会 春季学術講演会 to be held on Tokyo Science University, Chiba, Japan.
June 15-20, 2025
26th International Symposium on Plasma Chemistry (ISPC) at Minneapolis, USA
September 7-10, 2025
応物秋 2025年(令和7年)応用物理学会 秋季学術講演会 to be held at Nagoya, Japan.
September 21-26, 2025
AVS 71st AVS International Symposium & Exhibition to be held, at Charlotte, North Carolina, USA
October 20-24, 2025
GEC 78th Annual Gaseous Electronics Conference (GEC) to be held at Seoul, Korea.
November , 2025
DPS 46th DPS to be held at Ehime, Japan
December 1-4, 2025


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JSPF calendar, MRS calendar, APS calendar, conferences calendar


Metabolomic profiles display a novel mechanism on cell death that is induced specifically by incubation in the non-thermal plasma treated solutions

The plasma-activated lactated solution (PAL) exhibits antitumor effects in glioblastoma U251SP cells. The PAL-treated U251SP cells exhibited changes in intracellular metabolites that were reductive in the redox state.

Non-thermal plasma–activated lactate solution kills U251SP glioblastoma cells in an innate reductive manner with altered metabolism

Kenji Ishikawa, Yugo Hosoi et al. Archives of Biochemistry and Biophysics 688, 108414 (pp. 1-9) (July 30, 2020). link

Nonthermal plasma-activated medium (PAM) modified metabolomic profiles in glycolysis of U251SP glioblastoma

Naoyoyuki Kurake, Kenji Ishikawa et al. Archives of Biochemistry and Biophysics 662, pp.83-92 (February 15, 2019). link

Real-time in situ ESR

Our paper was published on-line in the Applied Physics Letters (IF 2011 = 3.844) on July 2 issue of 2012.

Real-time In Situ Electron Spin Resonance Measurements on Fungal Spores of Penicillium digitatum during Exposure of Oxygen Plasmas

Kenji Ishikawa et al. Appl. Phys. Lett. 101, 013704 (2012). link, arXiv

Real-time in situ ESR

Our paper was published in the Journal of Physical Chemistry Letters (I.F. 2011 = 6.213)


Synergistic Formation of Radicals by Irradiation with both Vacuum Ultraviolet and Atomic Hydrogen: a Real-time in situ Electron Spin Resonance Study

We report on the surface modification of polytetrafluoroethylene (PTFE) as an example of soft- and bio-materials that occur under plasma discharge by kinetics analysis of radical formation using in situ real-time electron spin resonance (ESR) measurements. During irradiation with hydrogen plasma, simultaneous measurements of the gas-phase ESR signals of atomic hydrogen and the carbon dangling bond (C-DB) on PTFE were performed. Dynamic changes of the C-DB density were observed in real time, where the rate of density change was accelerated during initial irradiation and then became constant over time. It is noteworthy that C-DBs were formed synergistically by irradiation with both vacuum ultraviolet (VUV) and atomic hydrogen. The in situ real-time ESR technique is useful to elucidate synergistic roles during plasma surface modification.

Kenji Ishikawa et al. J. Phys. Chem. Lett. 2, 1278 (2011). link

This paper won the 11th Plasma Electronics Award awarded by the Plasma Electronics division of the Japanese Society of Applied Physics on March 28, 2013.

Copyright Kenji Ishikawa (c) 2009-2023 Center for Low-temperature plasma sciences, Nagoya University.

Last-modified: 2023-12-07 (木) 17:05:05