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Organization for Promotion of Research and Industry-Academic Regional Collaboration Division for Research Facility Support |
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Associate Professor |
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Related SDGs |
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SAKAI Kentaro
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Degree 【 display / non-display 】
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Doctor (Engineering) ( 2001.3 University of Miyazaki )
Research Areas 【 display / non-display 】
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Nanotechnology/Materials / Inorganic materials and properties
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Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Electric and electronic materials
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Environmental Science/Agriculture Science / Agricultural environmental engineering and agricultural information engineering
Papers 【 display / non-display 】
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Tailored charge storage mechanism of a nickel metavanadate/polyaniline composite for high-performance hybrid supercapacitors Reviewed International coauthorship
Parlakoti Basappa Y., Kumar Basavaraju S., Tripathy A., Muralidhara H.B., Madhyastha H., Sakai K., Santosh M.S., Bhatt A.S.
Nanoscale 17 ( 48 ) 27933 - 27946 2025.12
Language：English Publishing type：Research paper (scientific journal) Publisher：Nanoscale
Hybrid materials that integrate battery-type and supercapacitive properties hold significant promise for next-generation energy storage systems. In the present work, a strategically designed nickel metavanadate/polyaniline (NVO/PANI) composite is developed to achieve superior energy storage performance. While the pseudocapacitive nature of NVO promotes surface faradaic reactions, integration with PANI lowers the ion-diffusion resistance to leverage the total charge storage. This synergy has been tailored to deliver a high specific capacitance of 1210 F g<sup>−1</sup>at 2 mV s<sup>−1</sup>, along with excellent cycling stability, retaining 85.7% coulombic efficiency over 3500 cycles. The distinct charge storage mechanisms of NVO and NVO/PANI have been systematically integrated for the first time to develop a battery-type hybrid supercapacitor that exhibits an impressive specific capacitance of 232 F g<sup>−1</sup>at 4 A g<sup>−1</sup>and a substantial energy density of 22 Wh kg<sup>−1</sup>at an elevated power density of 2.82 kW kg<sup>−1</sup>, retaining 100% coulombic efficiency up to 13 000 cycles. With a capacitance that surpasses commercial standards, the NVO/PANI composite represents a breakthrough in energy storage technology. This remarkable advancement provides a cost-effective and scalable strategy to fabricate high-energy, long-life supercapacitors, holding great potential for practical applications in electric vehicles and grid-scale energy storage.
DOI： 10.1039/d5nr03584h
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Enhancement of the Antitumor Efficacy of Docetaxel Using α(v)β(3) Integrin and CD44 Dual Receptor-Targeted Carbon Dot-Based Nanodelivery in Breast Cancer. Reviewed International coauthorship
Jana P, Sa P, Sakai K, Sahoo SK, Madhyastha H, Dev A
Molecular pharmaceutics 22 ( 10 ) 6120 - 6140 2025.10
Language：English Publishing type：Research paper (scientific journal)
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Magnetic Nanoparticle Capture and Quantum Dot Labeling for Rapid and Quantitative Detection of Methicillin-Resistant Staphylococcus aureus. Reviewed International coauthorship
Satheesan N, Madhyastha H, Sakai K, Kini S
ACS omega 10 ( 29 ) 32189 - 32201 2025.7
Language：English Publishing type：Research paper (scientific journal)
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Actual Status of Research Equipment Usage Inside and Outside the University and Analysis of Research Papers Published by on-Campus Use of Research Equipment at the University of Miyazaki Reviewed
SAKAI Kentaro, TANAKA Hidenori
The Journal of Science Policy and Research Management 39 ( 1 ) 26 - 34 2024.5
Authorship：Lead author, Corresponding author Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society for Research Policy and Innovation Management
In order to improve research capabilities of Japan, it is necessary to strategically maintain, operate, and share research facilities and equipment based on university management strategies. In this situation, it is important to establish institutional research (IR) of research infrastructure that quantitatively analyzes and evaluates how the use of research equipment contributes to the research capabilities of universities, but this is still in the development stage. Therefore, it is necessary to improve its functions and establish a methodology. In this paper, we report the usage of research equipment inside and outside the university obtained from the equipment management system developed at the University of Miyazaki, and analyze the research fields, analysis contents, and regional characteristics of analysis request commissioned from outside the university. Moreover, we will analyze the number and quality of papers published through the use of research facilities, and describe an example of research infrastructure IR at our university, which is a local/regional university.
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Development of Borehole Seismometer Using Conical Pendulum to Three-Component Velocity Measurement Reviewed
Yoshimatsu Akito, Bonkobara Yasuhiro, Ueoka Nobo, Hamahata Takayuki, Sakai Kentaro, Nakano Atsushi, Terazono Shinichi
Memoirs of Faculty of Engineering, University of Miyazaki 52 65 - 69 2023.10
Language：Japanese Publishing type：Research paper (scientific journal)
MISC 【 display / non-display 】
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非発光遷移検出によるポリジへキシルシランの光分解性評価
福山敦彦, 境健太郎, 碇 哲雄, 古川昌司
超音波TECHNO 11-12 2009.11
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media) Publisher：日本工業出版
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圧電素子光熱分光法による微結晶シリコン薄膜の光吸収スペクトル
碇哲雄, 境健太郎, 福山敦彦
超音波TECHNO 9-10 75 - 81 2004.9
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media) Publisher：日本工業出版
Presentations 【 display / non-display 】
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FT-IR/ATR 法を用いたマンゴーの美味しさに起因する代謝成分解析に関する基礎研究
境健太郎，佐藤美和，渡邊 典子，小林太一
第83回農業食料工学会年次大会 2025.9.13
Event date： 2025.9.11 - 2025.9.13
Language：Japanese Presentation type：Poster presentation
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FT-IR/ATR 法を用いたマンゴーの食味評価に関する研究
小林太一，佐藤美和，渡邊 典子，境健太郎
第83回農業食料工学会年次大会 2025.9.13
Event date： 2025.9.11 - 2025.9.13
Language：Japanese Presentation type：Poster presentation
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紫外励起蛍光カラー画像を用いた生育過程トマト葉のストレス計測
槐島芳徳，境健太郎，小林太一
第83回農業食料工学会年次大会 2025.9.13
Event date： 2025.9.11 - 2025.9.13
Language：Japanese Presentation type：Poster presentation
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ジエチル亜鉛の特性を活かした積層Fe添加ZnO薄膜形成塗布剤の開発
野田直輝、境健太郎、原口智宏、前林春城、二子石師、青木雅裕
第72回応用物理学会春季学術講演会 2025.3.17
Event date： 2025.3.14 - 2025.3.17
Language：Japanese Presentation type：Oral presentation (general)
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紫外線励起蛍光カラー画像による⽇向夏ミカンの冷蔵貯蔵過程における状態変化
境健太郎、⽇吉健⼆、⼩林太⼀、辻本祐加⼦、⻄本素三
日本生物環境工学会2024年大阪大会 2024.9.18
Event date： 2024.9.17 - 2024.9.20
Language：Japanese Presentation type：Poster presentation
Industrial property rights 【 display / non-display 】
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三方向成分速度検出機構
盆子原 康博、境 健太郎、中野 敦、寺薗 信一
Applicant：宮崎大学、株式会社アコー
Application no：2023-024877 Date applied：2023.2.21
Announcement no：2023-129306 Date announced：2023.9.14
Country of applicant：Domestic
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判定装置
小林 太一、境 健太郎、日吉 健二、松本 朋子、 槐島 芳德、西本 素、佐藤 喜一郎、仲野 政賢、並川 敬、前田 祥太郎、川合 蕉吾、柳 友理
Applicant：宮崎大学、ダイキン工業株式会社
Application no：22791742.4 Date applied：2022.4.19
Announcement no：EP4303569A1 Date announced：2024.1.4
Country of applicant：Foreign country
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判定装置
小林 太一、境 健太郎、日吉 健二、松本 朋子、 槐島 芳德、西本 素、佐藤 喜一郎、仲野 政賢、並川 敬、前田 祥太郎、川合 蕉吾、柳 友理
Applicant：宮崎大学、ダイキン工業株式会社
Application no：202280029094.8 Date applied：2022.4.19
Announcement no：CN117178184A Date announced：2023.12.5
Country of applicant：Foreign country
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判定装置
小林 太一、境 健太郎、日吉 健二、松本 朋子、槐島 芳徳、西本 素三、佐藤 喜一郎、仲野 政賢、並川 敬、前田 祥太郎、川合 蕉吾、中川 威、柳 友理
Applicant：宮崎大学、ダイキン工業株式会社
Application no：2022-068891 Date applied：2022.4.19
Announcement no：2022-165940 Date announced：2022.11.1
Patent/Registration no：7317324 Date registered：2023.7.21
Country of applicant：Domestic
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ニッケル皮膜の生成方法及びその装置
今井正人、吉野賢二、境健太郎、中野敦
Applicant：宮崎大学
Application no：特願2019-131921 Date applied：2019.7.17
Announcement no：2021-017604 Date announced：2021.2.15
Country of applicant：Domestic
Grant-in-Aid for Scientific Research 【 display / non-display 】
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国内研究機関における研究設備・機器の研究力への貢献：ハイインパクト論文の分析から
Grant number：24K06134 2024.04 - 2027.03
独立行政法人日本学術振興会 科学研究費基金 基盤研究(C)
Authorship：Coinvestigator(s)
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農薬を光で見よう
Grant number：17K08032 2017.04 - 2020.03
科学研究費補助金 基盤研究(C)
境健太郎、小林太一
Available Technology 【 display / non-display 】
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半導体を中心とした機能性材料の物性評価
農産物の光を使った非破壊検査技術の開発
大型分析装置を用いたさまざまな材料の各種分析Home Page： 研究・産学地域連携推進機構研究基盤支援部門HP
Related fields where technical consultation is available：・半導体をはじめとした工業用材料の物性評価に関すること
・様々な材料（農産物等も含む）の機器分析装置を用いた各種分析に関することMessage：・共同研究の希望テーマ:様々な材料の大型分析装置を用いた各種分析
・県内に設置してほしい分析装置があれば、ぜひ教えてください。
・大型分析装置を用いて材料分析したいというニーズがあれば、ぜひご連絡ください。