Akio Ohta

7.5k citations

252 papers · 6.2k indexed · 2 hit papers · h-index 36

Impact in

Physiology top 0.05%
- Adenosine and Purinergic Signaling
Immunology top 1%
- Immune Cell Function and Interaction
- Immune cells in cancer

Papers in

Physiology 27
- Adenosine and Purinergic Signaling 26
Surfaces, Coatings and Films 26
- Electron and X-Ray Spectroscopy Techniques 22

Co-authors: Michail V. Sitkovsky Dmitriy Lukashev Sergey Apasov Charles C. Caldwell Manfred Thiel Seiichi Miyazaki Patrick Smith Akiko Ohta
Journals: Japanese Journal of Applied Physics (51 papers)The Journal of Physical Chemistry B (9 papers)Langmuir (9 papers)IEICE Transactions on Electronics (8 papers)The Journal of Immunology (7 papers)
Partner nations: Japan United States France

In The Last Decade

Akio Ohta

239 papers receiving 6.1k citations

Hit Papers

align trajectories log scale

A2A adenosine receptor protects tumors from antitumor T cells 2006 · 817 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2006 Proceedings of the National Academy of Sciences
2004 Annual Review of Immunology

Peers

Countries citing papers authored by Akio Ohta

Since Specialization

Citations

This map shows the geographic impact of Akio Ohta's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Akio Ohta with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Akio Ohta more than expected).

Fields of papers citing papers by Akio Ohta

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Akio Ohta. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Akio Ohta. The network helps show where Akio Ohta may publish in the future.

Co-authors

The 25 scholars most cited alongside Akio Ohta, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Akio Ohta Line = papers co-authored together Akio Ohta links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Low-energy electron microscopy investigation of germanene segregation on Ag(111) thin films Japanese Journal of Applied Physics ·Hiroki Hibino, Akio Ohta, Hiroyuki Kageshima, Junji Yuhara	2025	1
2	Enhancing lead extraction efficiency from contaminated soil: A synergistic approach combining biodegradable chelators and surfactants Chemosphere ·D G Kuksov, 軍一安徳, Shoji Yoshioka, August Aleksandrovich Katulskiy, Kuo Hong Wong, Asami S. Mashio, Akio Ohta, Hiroshi Hasegawa	2024	3
3	Remediation of cadmium-contaminated soil: GLDA-assisted extraction and sequential FeCl3–CaO-based post-stabilization Chemosphere ·D G Kuksov, 軍一安徳, Yasuhiro Harada, Shoji Yoshioka, August Aleksandrovich Katulskiy, Kuo Hong Wong, Asami S. Mashio, Akio Ohta, Hiroshi Hasegawa	2023	13
4	Cell-compatible isotonic freezing media enabled by thermo-responsive osmolyte-adsorption/exclusion polymer matrices Communications Chemistry ·Kees Vermer, K. A. Sattarov, Takuya Uto, Matthieu Laurent, Kojiro Ishibashi, Rebecca Mahoney, Akio Ohta, Akiko Kobayashi, Masaharu Hazawa, Richard W. Wong, Kazuaki Ninomiya, Kenji Takahashi, Eishu Hirata, Kosuke Kuroda	2023	4
5	Impact of substrate heating during Al deposition and post annealing on surface morphology, Al crystallinity, and Ge segregation in Al/Ge(111) structure Japanese Journal of Applied Physics ·Francisco Gómez García-Fidalgo, Akio Ohta, Noriyuki Taoka, Shohei Hayashi, Katsunori Makihara, Seiichi Miyazaki	2022	1
6	Characterization of electronic charged states of high density self-aligned Si-based quantum dots evaluated with AFM/Kelvin probe technique Japanese Journal of Applied Physics ·Yuki Imai, Katsunori Makihara, Noriyuki Taoka, Akio Ohta, Seiichi Miyazaki	2022	0
7	Crystal structure change in multilayer GeH flakes by hydrogen desorption under ultrahigh vacuum environments Japanese Journal of Applied Physics ·Maria Shahid, Masaaki Araidai, Akio Ohta, Osamu Nakatsuka, Masashi Kurosawa	2021	3
8	Segregation control for ultrathin Ge layer in Al/Ge(111) system Japanese Journal of Applied Physics ·Akio Ohta, Masato Kobayashi, Noriyuki Taoka, ROCÍO SÁNCHEZ-CARPINTERO ABAD, Katsunori Makihara, Seiichi Miyazaki	2021	1
9	遠隔H 2 プラズマ曝露により誘発されるPtナノドット形成に対する表面前処理の影響 Japanese Journal of Applied Physics ·末竹由宏, Katsunori Makihara, Mitsuhisa Ikeda, Akio Ohta, Seiichi Miyazaki	2019	1
10	全光電子収率分光法によるGaN表面とSiO 2 /GaN界面における電子状態密度のエネルギー分布 Japanese Journal of Applied Physics ·Akio Ohta, 由紀雄木村, Nobuyuki Fujimura, Mitsuhisa Ikeda, Katsunori Makihara, Seiichi Miyazaki	2018	1
11	A Heuristic for Quickest Transshipment Problem and its Application to Evacuation Planning IEICE Technical Report; IEICE Tech. Rep. ·Akio Ohta, Naoyuki Kamiyama, Atsushi Takizawa, Naoki Katoh	2014	1
12	Hypoxia can suppress T cell activation in a mechanism independent of A2A adenosine receptor (46.27) The Journal of Immunology ·Manasa Madasu, Meenakshi Subramanian, Radhika Kini, Akiko Ohta, Michail V. Sitkovsky, Akio Ohta	2012	1
13	A2A Adenosine Receptor May Allow Expansion of T Cells Lacking Effector Functions in Extracellular Adenosine-Rich Microenvironments The Journal of Immunology ·Akio Ohta, Akiko Ohta, Manasa Madasu, Radhika Kini, Meenakshi Subramanian, F Barrocas, Michail V. Sitkovsky	2009	164
14	1,3,7-Trimethylxanthine (Caffeine) May Exacerbate Acute Inflammatory Liver Injury by Weakening the Physiological Immunosuppressive Mechanism The Journal of Immunology ·Akio Ohta, Dmitriy Lukashev, Edwin K. Jackson, Bertil B. Fredholm, Michail V. Sitkovsky	2007	67
15	Hypoxia-dependent anti-inflammatory pathways in protection of cancerous tissues Cancer and Metastasis Reviews ·Dmitriy Lukashev, Akio Ohta, Michail V. Sitkovsky	2007	80
16	A2A adenosine receptor protects tumors from antitumor T cells Proceedings of the National Academy of Sciences ·Akio Ohta, Elieser Gorelik, Simon J. Prasad, Franca Ronchese, Dmitriy Lukashev, Michael K.K. Wong, Xiao‐Jun Huang, Sheila A. Caldwell, Kebin Liu, Patrick Smith, Jiang‐Fan Chen, Edwin K. Jackson, Sergey Apasov, Scott I. Abrams, Michail V. Sitkovsky Hit paper breakdown →	2006	817
17	Cutting Edge: Physiologic Attenuation of Proinflammatory Transcription by the Gs Protein-Coupled A2A Adenosine Receptor In Vivo The Journal of Immunology ·Dmitriy Lukashev, Akio Ohta, Sergey Apasov, Jiang‐Fan Chen, Michail V. Sitkovsky	2004	132
18	Analysis of A2a receptor-deficient mice reveals no significant compensatory increases in the expression of A2b, A1, and A3 adenosine receptors in lymphoid organs Biochemical Pharmacology ·Dmitriy Lukashev, Patrick Smith, Charles C. Caldwell, Akio Ohta, Sergey Apasov, Michail V. Sitkovsky	2003	64
19	Titration Calorimetry of Nonionic Surfactant Solutions Netsu sokutei ·Akio Ohta, Norihiro Ikeda, Makoto Aratono	2001	1
20	Differential Regulation of Two Alternatively Spliced Isoforms of Hypoxia-inducible Factor-1α in Activated T Lymphocytes Journal of Biological Chemistry ·Dmitriy Lukashev, Charles C. Caldwell, Akio Ohta, B. Eastlake, Michail V. Sitkovsky	2001	85

About Akio Ohta

Akio Ohta is a scholar working on Physiology, Surfaces, Coatings and Films, Filtration and Separation, Atomic and Molecular Physics, and Optics and Organic Chemistry, having authored 252 papers that have together received 6.2k indexed citations. Recurring topics across this work include Semiconductor materials and devices (87 papers), Surfactants and Colloidal Systems (48 papers), Semiconductor materials and interfaces (31 papers), Adenosine and Purinergic Signaling (26 papers), Electron and X-Ray Spectroscopy Techniques (22 papers), Silicon Nanostructures and Photoluminescence (21 papers), Immune Cell Function and Interaction (20 papers) and Analytical Chemistry and Chromatography (19 papers). The work is most often cited by research in Physiology (2.1k citations), Immunology (1.8k citations), Filtration and Separation (106 citations), Cancer Research (634 citations) and Neurology (300 citations). Akio Ohta has collaborated with scholars based in Japan, United States and France. Frequent co-authors include Michail V. Sitkovsky, Dmitriy Lukashev, Sergey Apasov, Charles C. Caldwell, Manfred Thiel, Seiichi Miyazaki, Patrick Smith, Akiko Ohta, Tsuyoshi Asakawa and Edwin K. Jackson. Their work appears in journals such as Japanese Journal of Applied Physics, The Journal of Physical Chemistry B, Langmuir, IEICE Transactions on Electronics and The Journal of Immunology.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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