World's Best Scientists 2026 revealed!
Shinji Takeoka

Shinji Takeoka

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 61 9250 8384 657 608 398 13166

Shinji Takeoka publications per year

The chart shows the history of publications by Shinji Takeoka between 1985 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Shinji Takeoka published across 41 years, from 1985 to 2025, averaging 11.8 papers a year. Output peaked at 30 publications in 2005. 10 of the 482 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1985 to 2025. Vertical axis: number of publications, 0 to 30. Peak 30 publications in 2005. 1985: 1 publication 1986: 0 publications 1987: 3 publications 1988: 2 publications 1989: 4 publications 1990: 6 publications 1991: 5 publications 1992: 9 publications 1993: 7 publications 1994: 9 publications 1995: 5 publications 1996: 8 publications 1997: 9 publications 1998: 14 publications 1999: 7 publications 2000: 18 publications 2001: 11 publications 2002: 13 publications 2003: 13 publications 2004: 12 publications 2005: 30 publications 2006: 22 publications 2007: 15 publications 2008: 13 publications 2009: 20 publications 2010: 24 publications 2011: 23 publications 2012: 12 publications 2013: 16 publications 2014: 7 publications 2015: 11 publications 2016: 19 publications 2017: 21 publications 2018: 17 publications 2019: 22 publications 2020: 18 publications 2021: 7 publications 2022: 11 publications 2023: 8 publications 2024: 6 publications 2025: 4 publications
1985 2025

482 publications in total across all disciplines

View publications per year as a table
Shinji Takeoka: publications per year, 1985 to 2025
Year Publications
1985 1
1986 0
1987 3
1988 2
1989 4
1990 6
1991 5
1992 9
1993 7
1994 9
1995 5
1996 8
1997 9
1998 14
1999 7
2000 18
2001 11
2002 13
2003 13
2004 12
2005 30
2006 22
2007 15
2008 13
2009 20
2010 24
2011 23
2012 12
2013 16
2014 7
2015 11
2016 19
2017 21
2018 17
2019 22
2020 18
2021 7
2022 11
2023 8
2024 6
2025 4
Total 482
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Shinji Takeoka 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 Shinji Takeoka sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 381–400 publications, is where this scientist sits. 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
61–80 publications 1,295+

This scientist: 398 publications — 80th percentile

80% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459 398
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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Shinji Takeoka 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 Shinji Takeoka sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 60–61 D-Index, is where this scientist sits. 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
40–41 D-Index 159+

This scientist: 61 D-Index — 49th percentile

49% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882 61
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Overview

Shinji Takeoka is affiliated with Waseda University in Japan and has contributed extensively to research in medicine and engineering, with a significant focus on biomedical engineering and molecular biology. They have published studies within various subfields including biomaterials, immunology, and polymers and plastics.

The main topics of Takeoka's research include:

  • RNA Interference and Gene Delivery
  • Nanoparticle-Based Drug Delivery
  • Lipid Membrane Structure and Behavior
  • Advanced Sensor and Energy Harvesting Materials
  • Conducting Polymers and Applications
  • Nanoplatforms for Cancer Theranostics
  • Nanoparticles: Synthesis and Applications

Frequent coauthors in their research collaborations are Toshinori Fujie, Masato Takikawa, Manabu Kinoshita, Kohsuke Hagisawa, and Morihiro Hotta.

Shinji Takeoka's recent papers include:

  • "Evasion of the accelerated blood clearance phenomenon by polysarcosine coating of liposomes" (2020, Journal of Controlled Release)
  • "Metronomic photodynamic therapy using an implantable LED device and orally administered 5-aminolevulinic acid" (2020, Scientific Reports)
  • "A rapid and highly sensitive biomarker detection platform based on a temperature-responsive liposome-linked immunosorbent assay" (2020, Scientific Reports)
  • "Paper-Based Wearable Ammonia Gas Sensor Using Organic-Inorganic Composite PEDOT:PSS with Iron(III) Compounds" (2022, Advanced Materials Technologies)
  • "Synthesis of Biogenic Silver Nanoparticles Using Caesalpinia digyna and Investigation of Their Antimicrobial Activity and In Vivo Biocompatibility" (2020, ACS Applied Bio Materials)

The venues in which Takeoka publishes most frequently include:

  • Scientific Reports
  • ACS Applied Bio Materials
  • Polymers for Advanced Technologies
  • ACS Omega
  • MRS Communications

The body of Takeoka's work spans multiple disciplines, reflecting a broad integration of medicine and engineering to address complex biomedical challenges. The combination of topics and subfields illustrates a focus on drug delivery systems, nanotechnology-based approaches, and sensor development using advanced materials.

Best Publications

  • Size-dependent photoluminescence from surface-oxidized Si nanocrystals in a weak confinement regime

    Shinji Takeoka;Minoru Fujii;Shinji Hayashi

  • Size-dependent near-infrared photoluminescence from Ge nanocrystals embedded in SiO2 matrices

    Shinji Takeoka;Minoru Fujii;Shinji Hayashi;Keiichi Yamamoto

  • Distribution of heme oxygenase isoforms in rat liver. Topographic basis for carbon monoxide-mediated microvascular relaxation.

    Nobuhito Goda;Kensuke Suzuki;Makoto Naito;Shinji Takeoka

  • Size-dependent near-infrared photoluminescence spectra of Si nanocrystals embedded in SiO2 matrices

    Y. Kanzawa;T. Kageyama;S. Takeoka;M. Fujii

  • Molecular dimensions of Hb-based O2 carriers determine constriction of resistance arteries and hypertension

    Hiromi Sakai;Hiroyuki Hara;Minako Yuasa;Amy G. Tsai

  • Ultra-thin conductive free-standing PEDOT/PSS nanofilms

    Francesco Greco;Alessandra Zucca;Alessandra Zucca;Silvia Taccola;Silvia Taccola;Arianna Menciassi;Arianna Menciassi

  • A Nanoparticle-Based Ratiometric and Self-Calibrated Fluorescent Thermometer for Single Living Cells

    Yoshiaki Takei;Satoshi Arai;Atsushi Murata;Masao Takabayashi

  • Preparation and characterization of polymer thin films containing silver and silver sulfide nanoparticles

    Kensuke Akamatsu;Shodo Takei;Minoru Mizuhata;Akihiko Kajinami

  • Tissue-adhesive wirelessly powered optoelectronic device for metronomic photodynamic cancer therapy

    Kento Yamagishi;Izumi Kirino;Isao Takahashi;Hizuru Amano;Hizuru Amano

  • Loading of curcumin into macrophages using lipid-based nanoparticles.

    Keitaro Sou;Shunsuke Inenaga;Shinji Takeoka;Eishun Tsuchida

  • Adhesive, Flexible, and Robust Polysaccharide Nanosheets Integrated for Tissue‐Defect Repair

    Toshinori Fujie;Noriyuki Matsutani;Manabu Kinoshita;Yosuke Okamura

  • Aqueous colloidal mesoporous nanoparticles with ethenylene-bridged silsesquioxane frameworks.

    Chihiro Urata;Hironori Yamada;Ryutaro Wakabayashi;Yuko Aoyama

  • Free‐Standing Biodegradable Poly(lactic acid) Nanosheet for Sealing Operations in Surgery

    Yosuke Okamura;Koki Kabata;Manabu Kinoshita;Daizoh Saitoh

  • Carbon monoxide from heme catabolism protects against hepatobiliary dysfunction in endotoxin-treated rat liver.

    Takanori Kyokane;Shinji Norimizu;Hisashi Taniai;Tokio Yamaguchi

  • Poly(ethylene glycol)-Modification of the Phospholipid Vesicles by Using the Spontaneous Incorporation of Poly(ethylene glycol)-Lipid into the Vesicles

    Keitaro Sou;Taro Endo;Shinji Takeoka;Eishun Tsuchida

  • Surface Modification of Hemoglobin Vesicles with Poly(ethylene glycol) and Effects on Aggregation, Viscosity, and Blood Flow during 90 Exchange Transfusion in Anesthetized Rats

    Hiromi Sakai;Shinji Takeoka;Sung Ick Park;Takehiro Kose

  • Ubiquitous Transference of a Free-Standing Polysaccharide Nanosheet with the Development of a Nano-Adhesive Plaster

    Toshinori Fujie;Yosuke Okamura;Shinji Takeoka

  • Poly(ethylene glycol)-conjugation and deoxygenation enable long-term preservation of hemoglobin-vesicles as oxygen carriers in a liquid state.

    Hiromi Sakai;Ken Ichi Tomiyama;Keitaro Sou;Shinji Takeoka

  • Evaluation of pH-responsive liposomes containing amino acid-based zwitterionic lipids for improving intracellular drug delivery in vitro and in vivo.

    Yosuke Obata;Shoji Tajima;Shinji Takeoka

  • Photoluminescence from Si 1 − x Ge x alloy nanocrystals

    Shinji Takeoka;Kimiaki Toshikiyo;Minoru Fujii;Shinji Hayashi

Frequent Co-Authors

Eishun Tsuchida
Eishun Tsuchida Waseda University
Hiroyuki Nishide
Hiroyuki Nishide Waseda University
Makoto Handa
Makoto Handa Keio University
Hiroyuki Ohno
Hiroyuki Ohno Tokyo University of Agriculture and Technology
Yasuo Ikeda
Yasuo Ikeda Waseda University
Shinji Hayashi
Shinji Hayashi Kobe University
Minoru Fujii
Minoru Fujii Kobe University
Paolo Dario
Paolo Dario Sant'Anna School of Advanced Studies
Virgilio Mattoli
Virgilio Mattoli Italian Institute of Technology
Makoto Suematsu
Makoto Suematsu Keio University

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