World's Best Scientists 2026 revealed!
Keiji Numata

Keiji Numata

D-Index & Metrics

Chemistry

D-Index
59
Citations
11435
World Ranking
10228
National Ranking
735

Keiji Numata publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Keiji Numata sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 267 publications — 55th percentile

55% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Keiji Numata D-index placement in Chemistry in 2026

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

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 59 D-Index — 44th percentile

44% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

Keiji Numata is affiliated with Kyoto University in Japan and has contributed extensively to research in biochemistry, genetics, molecular biology, and materials science. Their work spans a broad range of topics, with a significant focus on biomaterials and molecular biology.

The main fields of study associated with Numata include:

  • Biochemistry, Genetics and Molecular Biology
  • Materials Science

Within these fields, Numata's research covers various subfields, notably:

  • Molecular Biology
  • Biomaterials
  • Plant Science
  • Biomedical Engineering
  • Cellular and Molecular Neuroscience

Numata explores key research topics such as:

  • Silk-based biomaterials and applications
  • RNA Interference and Gene Delivery
  • Biochemical and Structural Characterization
  • Photosynthetic Processes and Mechanisms
  • Biodegradable polymer synthesis and properties
  • Supramolecular Self-Assembly in Materials
  • Advanced biosensing and bioanalysis techniques

Frequent publication venues for Numata include:

  • Biomacromolecules
  • Polymer Journal
  • ACS Biomaterials Science & Engineering
  • Nature Communications
  • Advanced Functional Materials

Numata has collaborated closely with a number of researchers, including:

  • Kousuke Tsuchiya
  • Ali D. Malay
  • Yutaka Kodama
  • Masaki Odahara
  • Hiroyasu Masunaga

Selected recent publications by Numata and coauthors illustrate the scope of research interests and include:

  • "Raman image-activated cell sorting," 2020, Nature Communications
  • "Spider silk self-assembly via modular liquid-liquid phase separation and nanofibrillation," 2020, Science Advances
  • "1000 spider silkomes: Linking sequences to silk physical properties," 2022, Science Advances
  • "Multicomponent nature underlies the extraordinary mechanical properties of spider dragline silk," 2021, Proceedings of the National Academy of Sciences
  • "How to define and study structural proteins as biopolymer materials," 2020, Polymer Journal

Best Publications

  • The biomedical use of silk: past, present, future

    Chris Holland;Keiji Numata;Jelena Rnjak-Kovacina;F. Philipp Seib;F. Philipp Seib

  • Biopolymer-based nanoparticles for drug/gene delivery and tissue engineering.

    Sachiko Kaihara Nitta;Keiji Numata

  • Silk-based delivery systems of bioactive molecules.

    Keiji Numata;David L. Kaplan

  • Mechanism of enzymatic degradation of beta-sheet crystals

    Keiji Numata;Peggy Cebe;David L. Kaplan

  • Influence of Water Content on the β-Sheet Formation, Thermal Stability, Water Removal, and Mechanical Properties of Silk Materials

    Kenjiro Yazawa;Kana Ishida;Hiroyasu Masunaga;Takaaki Hikima

  • Raman image-activated cell sorting.

    Nao Nitta;Takanori Iino;Akihiro Isozaki;Mai Yamagishi

  • Relationships between physical properties and sequence in silkworm silks

    Ali D. Malay;Ryota Sato;Kenjiro Yazawa;Hiroe Watanabe

  • Spider silk self-assembly via modular liquid-liquid phase separation and nanofibrillation.

    Ali D. Malay;Takehiro Suzuki;Takuya Katashima;Nobuaki Kono

  • Local gene silencing in plants via synthetic dsRNA and carrier peptide

    Keiji Numata;Misato Ohtani;Takeshi Yoshizumi;Taku Demura

  • Branched poly(lactide) synthesized by enzymatic polymerization: effects of molecular branches and stereochemistry on enzymatic degradation and alkaline hydrolysis.

    Keiji Numata;Rajiv K Srivastava;Anna Finne-Wistrand;Ann-Christine Albertsson

  • Expression, cross-linking and characterization of recombinant chitin binding resilin

    Guokui Qin;Shaul Lapidot;Keiji Numata;Xiao Hu

  • Expression, cross-linking, and characterization of recombinant chitin binding resilin.

    Guokui Qin;Shaul Lapidot;Keiji Numata;Xiao Hu

  • Bioengineered Silk Protein-Based Gene Delivery Systems

    Keiji Numata;Balajikarthick Subramanian;Heather A. Currie;David L. Kaplan

  • Understanding the Limitations in the Biosynthesis of Polyhydroxyalkanoate (PHA) from Lignin Derivatives

    Satoshi Tomizawa;Jo Ann Chuah;Keiji Matsumoto;Yoshiharu Doi

  • Spider Silk-Based Gene Carriers for Tumor Cell-Specific Delivery

    Keiji Numata;Michaela R Reagan;Robert H Goldstein;Michael Rosenblatt

  • Rapid and efficient gene delivery into plant cells using designed peptide carriers.

    Manoj Lakshmanan;Yutaka Kodama;Takeshi Yoshizumi;Kumar Sudesh

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

    Keiji Numata;Takuya Katashima;Takamasa Sakai

  • Reinforcing Silk Scaffolds with Silk Particles

    Rangam Rajkhowa;Rangam Rajkhowa;Eun Seok Gil;Jonathan Kluge;Keiji Numata

  • Increased Bioplastic Production with an RNA Polymerase Sigma Factor SigE during Nitrogen Starvation in Synechocystis sp. PCC 6803

    Takashi Osanai;Keiji Numata;Akira Oikawa;Ayuko Kuwahara

  • Biodegradability of Poly(hydroxyalkanoate) Materials

    Keiji Numata;Hideki Abe;Tadahisa Iwata

  • Surface-Patterned Electrode Bioreactor for Electrical Stimulation

    Nina Tandon;Anna Marsano;Robert Maidhof;Keiji Numata

  • Gene delivery mediated by recombinant silk proteins containing cationic and cell binding motifs

    Keiji Numata;Juliana Hamasaki;Balajikarthick Subramanian;David L Kaplan

Frequent Co-Authors

David L. Kaplan
David L. Kaplan Tufts University
Takanori Kigawa
Takanori Kigawa RIKEN Center for Biosystems Dynamics Research
Hideki Abe
Hideki Abe Tokyo Institute of Technology
Tadahisa Iwata
Tadahisa Iwata University of Tokyo
Masaru Tomita
Masaru Tomita Keio University
Takamasa Sakai
Takamasa Sakai University of Tokyo
Taku Demura
Taku Demura Nara Institute of Science and Technology
Zhibo Li
Zhibo Li Qingdao University of Science and Technology

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