World's Best Scientists 2026 revealed!
Takamasa Sakai

Takamasa Sakai

D-Index & Metrics

Materials Science

D-Index
52
Citations
10356
World Ranking
9526
National Ranking
564

Takamasa Sakai 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 Takamasa Sakai 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: 234 publications — 42nd percentile

42% of scientists in this discipline score the same or lower.

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

Takamasa Sakai 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 Takamasa Sakai 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: 52 D-Index — 27th percentile

27% of scientists in this discipline score the same or lower.

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

Overview

Takamasa Sakai is affiliated with the University of Tokyo in Japan. Their research primarily focuses on materials science and intersects significantly with biochemistry, genetics, and molecular biology. Sakai's work spans various subfields including molecular medicine, biomedical engineering, biomaterials, polymers and plastics, and materials chemistry.

The scientist's research topics cover a range of specialized areas such as hydrogels synthesis, properties, and applications, biodegradable polymer synthesis and properties, 3D printing in biomedical research, advanced polymer synthesis and characterization, advanced materials and mechanics, polymer nanocomposites and properties, and polymer surface interaction studies.

Frequent coauthors collaborating with Sakai include Ung-il Chung, Naoyuki Sakumichi, Takuya Katashima, Shohei Ishikawa, and Hiroyuki Kamata. These recurring partnerships indicate ongoing collaborative research efforts across various projects.

Sakai has published extensively in several scientific venues. The most frequent publication venues are Macromolecules, arXiv (Cornell University), Polymer Journal, bioRxiv (Cold Spring Harbor Laboratory), and Soft Matter. These journals cover a variety of interdisciplinary topics related to polymers, materials science, and biomedical research.

Among recent notable papers, Sakai contributed to the following:

  • Network of cyano-p-aramid nanofibres creates ultrastiff and water-rich hydrospongels, 2024, Nature Materials
  • Tri-branched gels: Rubbery materials with the lowest branching factor approach the ideal elastic limit, 2022, Science Advances
  • Swelling Behaviors of Hydrogels with Alternating Neutral/Highly Charged Sequences, 2020, Macromolecules
  • Percolation-induced gel-gel phase separation in a dilute polymer network, 2023, Nature Materials
  • Star-Polymer-DNA Gels Showing Highly Predictable and Tunable Mechanical Responses, 2022, Advanced Materials

Best Publications

  • Design and Fabrication of a High-Strength Hydrogel with Ideally Homogeneous Network Structure from Tetrahedron-like Macromonomers

    Takamasa Sakai;Takuro Matsunaga;Yuji Yamamoto;Chika Ito

  • Self-Walking Gel

    Shingo Maeda;Yusuke Hara;Takamasa Sakai;Ryo Yoshida

  • “Nonswellable” Hydrogel Without Mechanical Hysteresis

    Hiroyuki Kamata;Yuki Akagi;Yuko Kayasuga-Kariya;Ung-il Chung

  • Structure Characterization of Tetra-PEG Gel by Small-Angle Neutron Scattering

    Takuro Matsunaga;Takamasa Sakai;Yuki Akagi;Ung-il Chung

  • SANS and SLS Studies on Tetra-Arm PEG Gels in As-Prepared and Swollen States

    Takuro Matsunaga;Takamasa Sakai;Yuki Akagi;Ung-il Chung

  • Transition between Phantom and Affine Network Model Observed in Polymer Gels with Controlled Network Structure

    Yuki Akagi;Yuki Akagi;Jian Ping Gong;Jian Ping Gong;Ung-il Chung;Ung-il Chung;Takamasa Sakai;Takamasa Sakai

  • Fast-forming hydrogel with ultralow polymeric content as an artificial vitreous body

    Kaori Hayashi;Fumiki Okamoto;Sujin Hoshi;Takuya Katashima

  • Connectivity and Structural Defects in Model Hydrogels: A Combined Proton NMR and Monte Carlo Simulation Study

    Frank Lange;Konrad Schwenke;Manami Kurakazu;Yuki Akagi

  • Highly Elastic and Deformable Hydrogel Formed from Tetra-arm Polymers

    Takamasa Sakai;Yuki Akagi;Takuro Matsunaga;Manami Kurakazu

  • Self-oscillation of polymer chains with rhythmical soluble-insoluble changes.

    Ryo Yoshida;Takamasa Sakai;Shoji Ito;Tomohiko Yamaguchi

  • Yielding Criteria of Double Network Hydrogels

    Takahiro Matsuda;Tasuku Nakajima;Yuki Fukuda;Wei Hong

  • Examination of the Theories of Rubber Elasticity Using an Ideal Polymer Network

    Yuki Akagi;Takuya Katashima;Yukiteru Katsumoto;Kenta Fujii

  • High-performance ion gel with tetra-PEG network

    Kenta Fujii;Hanako Asai;Takeshi Ueki;Takamasa Sakai

  • Design of Hydrogels for Biomedical Applications.

    Hiroyuki Kamata;Xiang Li;Ung-il Chung;Takamasa Sakai

  • Evaluation of Topological Defects in Tetra-PEG Gels

    Yuki Akagi;Takuro Matsunaga;Mitsuhiro Shibayama;Ung-il Chung

  • Self‐Flocculating/Self‐Dispersing Oscillation of Microgels

    Daisuke Suzuki;Takamasa Sakai;Ryo Yoshida

  • State of water, molecular structure, and cytotoxicity of silk hydrogels.

    Keiji Numata;Takuya Katashima;Takamasa Sakai

  • Fracture energy of polymer gels with controlled network structures

    Yuki Akagi;Hayato Sakurai;Jian Ping Gong;Ung-il Chung

  • Synthesis and Fracture Process Analysis of Double Network Hydrogels with a Well-Defined First Network

    Tasuku Nakajima;Yuki Fukuda;Takayuki Kurokawa;Takamasa Sakai

  • Photoregulated wormlike motion of a gel.

    Shu-ichi Shinohara;Takahiro Seki;Takamasa Sakai;Ryo Yoshida

Frequent Co-Authors

Ung-il Chung
Ung-il Chung University of Tokyo
Mitsuhiro Shibayama
Mitsuhiro Shibayama Comprehensive Research Organization for Science and Society
Kenta Fujii
Kenta Fujii Yamaguchi University
Ryo Yoshida
Ryo Yoshida University of Tokyo
Jian Ping Gong
Jian Ping Gong Hokkaido University
Tetsuro Oshika
Tetsuro Oshika University of Tsukuba
Elliot P. Gilbert
Elliot P. Gilbert Australian Nuclear Science and Technology Organisation
Keiji Numata
Keiji Numata Kyoto University
Kenji Urayama
Kenji Urayama Kyoto Institute of Technology
Takahiro Seki
Takahiro Seki Nagoya University

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