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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 49 14943 13461 22 21 244 7530

Masahiko Isaka publications per year

The chart shows the history of publications by Masahiko Isaka between 1986 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Masahiko Isaka published across 40 years, from 1986 to 2025, averaging 6.9 papers a year. Output peaked at 16 publications in 2005. 19 of the 275 publications appeared in the last two years.

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

275 publications in total across all disciplines

View publications per year as a table
Masahiko Isaka: publications per year, 1986 to 2025
Year Publications
1986 1
1987 0
1988 3
1989 5
1990 3
1991 3
1992 6
1993 5
1994 0
1995 2
1996 2
1997 0
1998 0
1999 5
2000 5
2001 15
2002 10
2003 7
2004 12
2005 16
2006 11
2007 12
2008 6
2009 11
2010 13
2011 13
2012 10
2013 2
2014 7
2015 6
2016 7
2017 12
2018 11
2019 7
2020 8
2021 6
2022 7
2023 7
2024 9
2025 10
Total 275
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Masahiko Isaka 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 Masahiko Isaka 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, 241–260 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: 244 publications — 48th percentile

48% 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 1,100 244
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
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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Masahiko Isaka 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 Masahiko Isaka 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, 48–49 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: 49 D-Index — 19th percentile

19% 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 49
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
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

Masahiko Isaka is affiliated with the National Center for Genetic Engineering and Biotechnology in Thailand. Their research primarily focuses on the intersection of medicine and biochemistry, genetics, and molecular biology. The scientist has produced significant work in pharmacology, molecular biology, plant science, organic chemistry, and materials chemistry.

The main topics of their research include:

  • Fungal Biology and Applications
  • Phytochemistry and Bioactivity Studies
  • Microbial Natural Products and Biosynthesis
  • Phytochemical Compounds Biological Activities
  • Plant Biochemistry and Biosynthesis
  • Fungal Plant Pathogen Control
  • Mycorrhizal Fungi and Plant Interactions

They have frequently published in the following venues:

  • Journal of Natural Products
  • Phytochemistry Letters
  • Phytochemistry
  • Natural Product Research
  • SSRN Electronic Journal

Some of their recent papers include:

  • Ganoweberianones A and B, Antimalarial Lanostane Dimers from Cultivated Fruiting Bodies of the Basidiomycete Ganoderma weberianum, 2020, Journal of Natural Products
  • Highly Modified Lanostane Triterpenes from the Wood-Rot Basidiomycete Ganoderma colossus: Comparative Chemical Investigations of Natural and Artificially Cultivated Fruiting Bodies and Mycelial Cultures, 2020, Journal of Natural Products

While not all recent publications have Isaka as the primary author, the scientist's research aligns with studies such as:

  • Antimalarial 9-Methoxystrobilurins, Oudemansins, and Related Polyketides from Cultures of Basidiomycete Favolaschia Species, 2020, Journal of Natural Products
  • Furan Derivatives and Polyketides from the Fungus Irpex lacteus, 2020, Natural Products and Bioprospecting
  • Lanostane triterpenoids from cultivated fruiting bodies of basidiomycete Ganoderma mbrekobenum, 2021, Phytochemistry

Masahiko Isaka's work is often conducted in collaboration with several frequent coauthors such as Thitiya Boonpratuang, Rattaket Choeyklin, Wilunda Choowong, Somporn Palasarn, and Kitlada Srichomthong. These collaborators have contributed to numerous publications together.

Best Publications

  • Phomoxanthones A and B, novel xanthone dimers from the endophytic fungus Phomopsis species.

    Masahiko Isaka;Amonlaya Jaturapat;Kamolchanok Rukseree;Kannawat Danwisetkanjana

  • Aigialomycins A-E, new resorcylic macrolides from the marine mangrove fungus Aigialus parvus.

    Masahiko Isaka;Chotika Suyarnsestakorn;Morakot Tanticharoen;Palangpon Kongsaeree

  • Bioactive Substances from Insect Pathogenic Fungi

    Masahiko Isaka;Prasat Kittakoop;Kanyawim Kirtikara;Nigel L. Hywel-Jones

  • Aldol reactions in polypropionate synthesis: High π-face selectivity of enol borinates from α-chiral methyl and ethyl ketones under substrate control

    Ian Paterson;Jonathan M. Goodman;Masahiko Isaka

  • Hirsutellones A-E, antimycobacterial alkaloids from the insect pathogenic fungus Hirsutella nivea BCC 2594

    Masahiko Isaka;Nuntawan Rugseree;Pacharee Maithip;Palangpon Kongsaeree

  • Structures of cordypyridones A-D, antimalarial N-hydroxy- and N-methoxy-2-pyridones from the insect pathogenic fungus Cordyceps nipponica.

    Masahiko Isaka;Morakot Tanticharoen;Palangpon Kongsaeree;Yodhathai Thebtaranonth

  • Multiplolides A and B, new antifungal 10-membered lactones from Xylaria multiplex.

    Surat Boonphong;Prasat Kittakoop;Masahiko Isaka;Daraporn Pittayakhajonwut

  • Potent in vitro antimalarial activity of metacycloprodigiosin isolated from Streptomyces spectabilis BCC 4785.

    Masahiko Isaka;Amonlaya Jaturapat;Jarin Kramyu;Morakot Tanticharoen

  • 10-membered macrolides from the insect pathogenic fungus Cordyceps militaris BCC 2816.

    Vatcharin Rukachaisirikul;Songyos Pramjit;Chaveng Pakawatchai;Masahiko Isaka

  • Hirsutellone F, a Dimer of Antitubercular Alkaloids from the Seed Fungus Trichoderma Species BCC 7579

    Masahiko Isaka;Wai Prathumpai;Patcharaporn Wongsa;Morakot Tanticharoen

  • Antimycobacterial and antiplasmodial cyclodepsipeptides from the insect pathogenic fungus Paecilomyces tenuipes BCC 1614.

    Chongdee Nilanonta;Masahiko Isaka;Prasat Kittakoop;Prasit Palittapongarnpim

  • Unusual enniatins produced by the insect pathogenic fungus Verticillium hemipterigenum: isolation and studies on precursor-directed biosynthesis

    Chongdee Nilanonta;Masahiko Isaka;Rachada Chanphen;Nuntawan Thong-orn

  • Precursor-directed biosynthesis of beauvericin analogs by the insect pathogenic fungus Paecilomyces tenuipes BCC 1614

    Chongdee Nilanonta;Masahiko Isaka;Prasat Kittakoop;Srisuda Trakulnaleamsai

  • Butyrolactones from the Fungus Aspergillus terreus BCC 4651

    Rachada Haritakun;Pranee Rachtawee;Rungtiwa Chanthaket;Nattawut Boonyuen

  • Antimalarial halorosellinic acid from the marine fungus Halorosellinia oceanica.

    Maneekarn Chinworrungsee;Prasat Kittakoop;Masahiko Isaka;Amporn Rungrod

  • Lanostane triterpenes from cultures of the Basidiomycete Ganoderma orbiforme BCC 22324

    Masahiko Isaka;Panida Chinthanom;Surisa Kongthong;Kitlada Srichomthong

  • Eremophilane-type sesquiterpenes from the fungus Xylaria sp. BCC 21097.

    Masahiko Isaka;Panida Chinthanom;Tanapong Boonruangprapa;Nattawut Rungjindamai

  • Aigialomycins and related polyketide metabolites from the mangrove fungus Aigialus parvus BCC 5311

    Masahiko Isaka;Arunrat Yangchum;Sutichai Intamas;Kanokarn Kocharin

  • Halorosellins A and B, unique isocoumarin glucosides from the marine fungus Halorosellinia oceanica

    Maneekarn Chinworrungsee;Prasat Kittakoop;Masahiko Isaka;Ratchada Chanphen

  • Carbocupration of cyclopropene. A novel synthon of cyclopropanone enolate and its application to [3 + 2] and [3 + 2 + 2] annulation

    Eiichi. Nakamura;Masahiko. Isaka;Satoshi. Matsuzawa

  • Carbocupration of cyclopropene. Asymmetric synthesis of quaternary carbon centers

    Masahiko Isaka;Eiichi Nakamura

Frequent Co-Authors

Yodhathai Thebtaranonth
Yodhathai Thebtaranonth Mahidol University
Prasat Kittakoop
Prasat Kittakoop Chulabhorn Graduate Institute
Eiichi Nakamura
Eiichi Nakamura University of Tokyo
J. Jennifer Luangsa-ard
J. Jennifer Luangsa-ard National Center for Genetic Engineering and Biotechnology
Ji-Kai Liu
Ji-Kai Liu South Central University for Nationalities
Saisamorn Lumyong
Saisamorn Lumyong Chiang Mai University
Hidetoshi Tokuyama
Hidetoshi Tokuyama Tohoku University
Vatcharin Rukachaisirikul
Vatcharin Rukachaisirikul Prince of Songkla University
Paul G. Williard
Paul G. Williard Brown University
Shigeru Yamago
Shigeru Yamago Kyoto University

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