World's Best Scientists 2026 revealed!
Tomoji Kawai

Tomoji Kawai

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Chemistry
Japan
2026
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Materials Science
Japan
2022

D-Index & Metrics

Materials Science

D-Index
102
Citations
43952
World Ranking
948
National Ranking
32

Chemistry

D-Index
97
Citations
35325
World Ranking
1461
National Ranking
66

Tomoji Kawai publication distribution in Materials Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Materials Science in 2026. The highlighted bar marks where Tomoji Kawai sits on this spectrum.

50–69 publications: 28 scientists 70–89 publications: 152 scientists 90–109 publications: 356 scientists 110–129 publications: 487 scientists 130–149 publications: 723 scientists 150–169 publications: 835 scientists 170–189 publications: 850 scientists 190–209 publications: 891 scientists 210–229 publications: 862 scientists 230–249 publications: 766 scientists 250–269 publications: 726 scientists 270–289 publications: 665 scientists 290–309 publications: 593 scientists 310–329 publications: 537 scientists 330–349 publications: 477 scientists 350–369 publications: 440 scientists 370–389 publications: 356 scientists 390–409 publications: 321 scientists 410–429 publications: 256 scientists 430–449 publications: 246 scientists 450–469 publications: 216 scientists 470–489 publications: 212 scientists 490–509 publications: 174 scientists 510–529 publications: 194 scientists 530–549 publications: 162 scientists 550–569 publications: 131 scientists 570–589 publications: 111 scientists 590–609 publications: 103 scientists 610–629 publications: 99 scientists 630–649 publications: 77 scientists 650–669 publications: 92 scientists 670–689 publications: 56 scientists 690–709 publications: 53 scientists 710–729 publications: 53 scientists 730–749 publications: 38 scientists 750–769 publications: 52 scientists 770–789 publications: 43 scientists 790–809 publications: 38 scientists 810–829 publications: 34 scientists 830–849 publications: 25 scientists 850–869 publications: 18 scientists 870–889 publications: 20 scientists 890–909 publications: 24 scientists 910–929 publications: 27 scientists 930–949 publications: 20 scientists 950–969 publications: 17 scientists 970–989 publications: 10 scientists 990–1,009 publications: 16 scientists 1,010–1,029 publications: 13 scientists 1,030–1,049 publications: 12 scientists 1,050–1,069 publications: 9 scientists 1,070–1,089 publications: 8 scientists 1,090–1,109 publications: 7 scientists 1,110–1,129 publications: 9 scientists 1,130–1,149 publications: 2 scientists 1,150–1,162 publications: 5 scientists 1,163+ publications: 100 scientists
50 publications 1,163+

This scientist: 880 publications — 98th percentile

98% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,163 publications or more.

Tomoji Kawai D-index placement in Materials Science in 2026

The chart shows the D-index (discipline H-index) distribution of Materials Science scientists ranked by Research.com in 2026. The highlighted bar marks where Tomoji Kawai sits on this spectrum.

40–41 D-Index: 211 scientists 42–43 D-Index: 450 scientists 44–45 D-Index: 612 scientists 46–47 D-Index: 612 scientists 48–49 D-Index: 598 scientists 50–51 D-Index: 657 scientists 52–53 D-Index: 667 scientists 54–55 D-Index: 621 scientists 56–57 D-Index: 597 scientists 58–59 D-Index: 610 scientists 60–61 D-Index: 587 scientists 62–63 D-Index: 606 scientists 64–65 D-Index: 533 scientists 66–67 D-Index: 490 scientists 68–69 D-Index: 469 scientists 70–71 D-Index: 378 scientists 72–73 D-Index: 421 scientists 74–75 D-Index: 359 scientists 76–77 D-Index: 323 scientists 78–79 D-Index: 299 scientists 80–81 D-Index: 230 scientists 82–83 D-Index: 210 scientists 84–85 D-Index: 195 scientists 86–87 D-Index: 203 scientists 88–89 D-Index: 175 scientists 90–91 D-Index: 175 scientists 92–93 D-Index: 142 scientists 94–95 D-Index: 121 scientists 96–97 D-Index: 117 scientists 98–99 D-Index: 107 scientists 100–101 D-Index: 88 scientists 102–103 D-Index: 85 scientists 104–105 D-Index: 68 scientists 106–107 D-Index: 62 scientists 108–109 D-Index: 57 scientists 110–111 D-Index: 45 scientists 112–113 D-Index: 49 scientists 114–115 D-Index: 50 scientists 116–117 D-Index: 34 scientists 118–119 D-Index: 38 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 29 scientists 124–125 D-Index: 28 scientists 126–127 D-Index: 24 scientists 128–129 D-Index: 33 scientists 130–131 D-Index: 28 scientists 132–133 D-Index: 21 scientists 134–135 D-Index: 20 scientists 136–137 D-Index: 23 scientists 138–139 D-Index: 17 scientists 140–141 D-Index: 12 scientists 142–143 D-Index: 17 scientists 144–145 D-Index: 21 scientists 146–147 D-Index: 13 scientists 148–149 D-Index: 11 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 13 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 4 scientists 162–163 D-Index: 4 scientists 164 D-Index: 3 scientists 165+ D-Index: 98 scientists
40 D-Index 165+

This scientist: 102 D-Index — 93rd percentile

93% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 165 D-Index or more.

Research.com Recognitions

  • 2026 - Research.com Chemistry in Japan Leader Award
  • 2025 - Research.com Chemistry in Japan Leader Award
  • 2022 - Research.com Chemistry in Japan Leader Award
  • 2022 - Research.com Materials Science in Japan Leader Award

Overview

Tomoji Kawai is a researcher affiliated with Osaka University in Japan, specializing primarily in the field of Engineering. Their work extensively covers subfields such as Biomedical Engineering, Electrical and Electronic Engineering, Molecular Biology, Computational Mechanics, and Physical and Theoretical Chemistry.

The scientist's research focus incorporates various topics, including nanopore and nanochannel transport studies, membrane-based ion separation techniques, fuel cells and related materials, microfluidic and capillary electrophoresis applications, ion-surface interactions and analysis, microfluidic and bio-sensing technologies, and extracellular vesicles in disease.

Selected recent papers authored by Tomoji Kawai include:

  • Solid-State Nanopore Platform Integrated with Machine Learning for Digital Diagnosis of Virus Infection, 2020, Analytical Chemistry
  • Molecular profiling of extracellular vesicles via charge-based capture using oxide nanowire microfluidics, 2021, Biosensors and Bioelectronics
  • Digital Pathology Platform for Respiratory Tract Infection Diagnosis via Multiplex Single-Particle Detections, 2020, ACS Sensors
  • Deep Learning-Enhanced Nanopore Sensing of Single-Nanoparticle Translocation Dynamics, 2021, Small Methods
  • Mechanical Rupture-Based Antibacterial and Cell-Compatible ZnO/SiO2 Nanowire Structures Formed by Bottom-Up Approaches, 2020, Micromachines

Frequent co-authors collaborating with Kawai include Makusu Tsutsui, Kazumichi Yokota, Yoshinobu Baba, Akihide Arima, and Takashi Washio. These collaborations reflect interdisciplinary approaches spanning multiple aspects of nanotechnology and bioengineering.

Common venues for publication reflect the scientist's focus and expertise, including Small Methods, ACS Nano, Analytical Chemistry, ACS Sensors, and Exploration. These journals highlight the interdisciplinary nature of their work in both fundamental and applied research domains.

Best Publications

  • Transparent thin film transistors using ZnO as an active channel layer and their electrical properties

    Satoshi Masuda;Ken Kitamura;Yoshihiro Okumura;Shigehiro Miyatake

  • Magnetic and electric properties of transition-metal-doped ZnO films

    Kenji Ueda;Hitoshi Tabata;Tomoji Kawai

  • Length-dependent recognition of double-stranded ribonucleic acids by retinoic acid–inducible gene-I and melanoma differentiation–associated gene 5

    Hiroki Kato;Osamu Takeuchi;Eriko Mikamo-Satoh;Eriko Mikamo-Satoh;Reiko Hirai

  • Conversion of carbohydrate into hydrogen fuel by a photocatalytic process

    Tomoji Kawai;Tadayoshi Sakata

  • p-Type Electrical Conduction in ZnO Thin Films by Ga and N Codoping.

    Mathew Joseph;Hitoshi Tabata;Tomoji Kawai

  • Photoconductive coaxial nanotubes of molecularly connected electron donor and acceptor layers.

    Yohei Yamamoto;Takanori Fukushima;Yuki Suna;Noriyuki Ishii

  • Electrical conduction through poly(dA)-poly(dT) and poly(dG)-poly(dC) DNA molecules.

    K.-H. Yoo;D. H. Ha;J.-O. Lee;J.-O. Lee;J. W. Park

  • Identifying single nucleotides by tunnelling current

    Makusu Tsutsui;Masateru Taniguchi;Masateru Taniguchi;Kazumichi Yokota;Tomoji Kawai;Tomoji Kawai

  • FORMATION OF ARTIFICIAL BATIO3/SRTIO3 SUPERLATTICES USING PULSED LASER DEPOSITION AND THEIR DIELECTRIC PROPERTIES

    Hitoshi Tabata;Hidekazu Tanaka;Tomoji Kawai

  • Magnetic and electric properties of vanadium doped ZnO films

    Hiromasa Saeki;Hitoshi Tabata;Tomoji Kawai

  • Photocatalytic hydrogen production from liquid methanol and water

    Tomoji Kawai;Tadayoshi Sakata

  • Preparation of the High-TcPhase of Bi-Sr-Ca-Cu-O Superconductor

    Utako Endo;Satoshi Koyama;Tomoji Kawai

  • Giant electric field modulation of double exchange ferromagnetism at room temperature in the perovskite manganite/titanate p-n junction.

    Hidekazu Tanaka;Jun Zhang;Tomoji Kawai

  • Self-assembled DNA networks and their electrical conductivity

    Lintao Cai;Hitoshi Tabata;Tomoji Kawai

  • Ferromagnetism in LaFeO3-LaCrO3 Superlattices

    Kenji Ueda;Hitoshi Tabata;Tomoji Kawai

  • A review of DNA functionalized/grafted carbon nanotubes and their characterization

    Sobhi Daniel;Talasila Prasada Rao;Kota Sreenivasa Rao;Sikhakolli Usha Rani

  • Fabrication and Optoelectronic Properties of a Transparent ZnO Homostructural Light-Emitting Diode

    Xin-Li Guo;Jae-Hyoung Choi;Hitoshi Tabata;Tomoji Kawai

  • Pulsed laser reactive deposition of p-type ZnO film enhanced by an electron cyclotron resonance source

    Xin-Li Guo;Hitoshi Tabata;Tomoji Kawai

  • Initial preferred growth in zinc oxide thin films on Si and amorphous substrates by a pulsed laser deposition

    Jae Hyoung Choi;Hitoshi Tabata;Tomoji Kawai

  • Heterogeneous photocatalytic production of hydrogen and methane from ethanol and water

    Tadayoshi Sakata;Tomoji Kawai

Frequent Co-Authors

Hidekazu Tanaka
Hidekazu Tanaka Ritsumeikan University
Hitoshi Tabata
Hitoshi Tabata University of Tokyo
Masateru Taniguchi
Masateru Taniguchi Osaka University
Takeshi Yanagida
Takeshi Yanagida University of Tokyo
Yoshinobu Baba
Yoshinobu Baba Nagoya University
Hiroyuki Tanaka
Hiroyuki Tanaka Kyushu University
Tadayoshi Sakata
Tadayoshi Sakata Tokyo Institute of Technology
Bae Ho Park
Bae Ho Park Konkuk University
Maki Kawai
Maki Kawai University of Tokyo
Kenzi Tamaru
Kenzi Tamaru University of Tokyo

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