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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 43 17189 15538 6 6 242 7160

Ihsan Calis publications per year

The chart shows the history of publications by Ihsan Calis between 1984 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ihsan Calis published across 42 years, from 1984 to 2025, averaging 6.5 papers a year. Output peaked at 22 publications in 2002. 8 of the 273 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1984 to 2025. Vertical axis: number of publications, 0 to 22. Peak 22 publications in 2002. 1984: 4 publications 1985: 1 publication 1986: 0 publications 1987: 1 publication 1988: 4 publications 1989: 2 publications 1990: 5 publications 1991: 6 publications 1992: 8 publications 1993: 11 publications 1994: 4 publications 1995: 3 publications 1996: 5 publications 1997: 4 publications 1998: 7 publications 1999: 15 publications 2000: 17 publications 2001: 12 publications 2002: 22 publications 2003: 12 publications 2004: 9 publications 2005: 12 publications 2006: 11 publications 2007: 16 publications 2008: 10 publications 2009: 3 publications 2010: 8 publications 2011: 5 publications 2012: 2 publications 2013: 2 publications 2014: 1 publication 2015: 4 publications 2016: 3 publications 2017: 3 publications 2018: 2 publications 2019: 7 publications 2020: 7 publications 2021: 8 publications 2022: 5 publications 2023: 4 publications 2024: 3 publications 2025: 5 publications
1984 2025

273 publications in total across all disciplines

View publications per year as a table
Ihsan Calis: publications per year, 1984 to 2025
Year Publications
1984 4
1985 1
1986 0
1987 1
1988 4
1989 2
1990 5
1991 6
1992 8
1993 11
1994 4
1995 3
1996 5
1997 4
1998 7
1999 15
2000 17
2001 12
2002 22
2003 12
2004 9
2005 12
2006 11
2007 16
2008 10
2009 3
2010 8
2011 5
2012 2
2013 2
2014 1
2015 4
2016 3
2017 3
2018 2
2019 7
2020 7
2021 8
2022 5
2023 4
2024 3
2025 5
Total 273
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Ihsan Calis 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 Ihsan Calis 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: 242 publications — 47th percentile

47% 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 1,100 242
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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Ihsan Calis 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 Ihsan Calis 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, 42–43 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: 43 D-Index — 5th percentile

5% 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 43
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
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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Research.com Recognitions

  • The Science Academy Society of Turkey - Bilim Akademisi Pharmacology
  • The Science Academy Society of Turkey - Bilim Akademisi Pharmacology
  • The Science Academy Society of Turkey - Bilim Akademisi Pharmacology
  • The Science Academy Society of Turkey - Bilim Akademisi Pharmacology
  • The Science Academy Society of Turkey - Bilim Akademisi Pharmacology
  • The Science Academy Society of Turkey - Bilim Akademisi Pharmacology
  • The Science Academy Society of Turkey - Bilim Akademisi Pharmacology

Overview

Ihsan Calis is affiliated with Near East University in Cyprus and focuses their research primarily in the fields of Agricultural and Biological Sciences and Medicine. Their scholarly work includes subfields such as Plant Science, Molecular Biology, Materials Chemistry, Complementary and Alternative Medicine, and Food Science.

The main topics of Ihsan Calis's research encompass:

  • Phytochemistry and Biological Activities
  • Natural product bioactivities and synthesis
  • Essential Oils and Antimicrobial Activity
  • Natural Compound Pharmacology Studies
  • Traditional Chinese Medicine Analysis
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography

Their frequent publication venues include:

  • Records of Natural Products
  • The Cambridge Structural Database
  • Molecules
  • Turkish Journal of Pharmaceutical Sciences
  • Planta Medica

Frequent co-authors collaborating with Ihsan Calis are:

  • Hasan S. Yusufoglu
  • Azmi Hanoğlu
  • Ayşe Ünlü
  • Zübeyde Uğurlu Aydın
  • Anthony Linden

Among recent publications, the following are notable for their relevance and coverage:

  • "Cytotoxic Effects of Verbascoside on MCF-7 and MDA-MB-231," 2021, published in Turkish Journal of Pharmaceutical Sciences
  • "Review of Studies on Phlomis and Eremostachys Species (Lamiaceae) with Emphasis on Iridoids, Phenylethanoid Glycosides, and Essential Oils," 2021, published in Planta Medica
  • "Outlining In Vitro and In Silico Cholinesterase Inhibitory Activity of Twenty-Four Natural Products of Various Chemical Classes: Smilagenin, Kokusaginine, and Methyl Rosmarinate as Emboldening Inhibitors," 2021, published in Molecules
  • "Switchable-hydrophilicity solvent liquid-liquid microextraction versus dispersive liquid-liquid microextraction prior to HPLC-UV for the determination and isolation of piperine from Piper nigrum L," 2020, published in Journal of Separation Science
  • "Isolation, Characterization and In Silico Studies of Secondary Metabolites from the Whole Plant of Polygala inexpectata Peşmen & Erik," 2022, published in Molecules

Ihsan Calis has received recognition from the Science Academy Society of Turkey - Bilim Akademisi in the area of Pharmacology.

Best Publications

  • Effects of triterpene saponins from Astragalus species on in vitro cytokine release.

    Erdem Yesilada;Erdal Bedir;İhsan Çalış;Yoshihisa Takaishi

  • Immunostimulatory Effects of Cycloartane-Type Triterpene Glycosides from Astragalus Species

    Erdal Bedir;Nirmal Pugh;Ihsan Calis;David S. Pasco

  • Studies on constituents with cytotoxic and cytostatic activity of two Turkish medicinal plants Phlomis armeniaca and Scutellaria salviifolia

    Iclal Saracoglu;Makoto Inoue;Ihsan Calis;Yukio Ogihara

  • Antioxidant, anti-inflammatory, anti-nociceptive activities and composition of Lythrum salicaria L. extracts.

    Zeynep Tunalier;Müberra Koşar;Esra Küpeli;İhsan Çaliş

  • (6S)-Hydroxy-3-oxo-α-ionol glucosides from Capparis spinosa fruits

    İhsan Çalış;Ayşe Kuruüzüm-Uz;Piergiorgio A. Lorenzetto;Peter Rüedi

  • Isomartynoside, a phenylpropanoid glycoside from Galeopsis pubescens

    Ihsan Calis;Mohamed F. Lahloub;Erich Rogenmoser;Otto Sticher

  • Inhibiting activities of the secondary metabolites of Phlomis brunneogaleata against parasitic protozoa and plasmodial enoyl-ACP Reductase, a crucial enzyme in fatty acid biosynthesis.

    Hasan Kırmızıbekmez;Ihsan Çalıs;Remo Perozzo;Reto Brun

  • Anti-protozoal and plasmodial FabI enzyme inhibiting metabolites of Scrophularia lepidota roots

    Deniz Tasdemir;Nadide Deniz Güner;Remo Perozzo;Reto Brun

  • New triterpenoids with antibacterial activity from Zizyphus joazeiro.

    Wolfgang Schühly;Jörg Heilmann;Ihsan Çalis;Otto Sticher

  • Cycloartane triterpene glycosides from the roots of Astragalus melanophrurius.

    ihsan Çaliş;Ayşen Yürüker;Deniz Taşdemir;Anthony D. Wright

  • Phenolic compounds from Scutellaria pontica

    Tayfun Ersöz;Ü. Şebnem Harput;Iclal Saracoğlu;Ihsan Çaliş

  • 1H-indole-3 acetonitrile glycosides from Capparis spinosa fruits

    İhsan Çaliş;Ayşe Kuruüzüm;Peter Rüedi

  • Secoiridoids from Fraxinus angustifolia

    Ihsan Ca̧liş;Mohammed Hosny;Taha Khalifa;Sansei Nishibe

  • Radical scavenger activity of phenylethanoid glycosides in FMLP stimulated human polymorphonuclear leukocytes: structure-activity relationships

    Jörg Heilmann;Ihsan Çalis;Hasan Kirmizibekmez;Wolfgang Schühly

  • Phenolic compounds of Sideritis ozturkii and their in vivo anti-inflammatory and antinociceptive activities.

    Esra Küpeli;F. Pınar Şahin;İhsan Çalış;Erdem Yeşilada

  • Evaluation of antiprotozoal and antimycobacterial activities of the resin glycosides and the other metabolites of Scrophularia cryptophila.

    Deniz Tasdemir;Reto Brun;Scott G. Franzblau;Yuekselen Sezgin

  • Investigations of anti-inflammatory, antinociceptive, antioxidant and aldose reductase inhibitory activities of phenolic compounds from Sideritis brevibracteata

    Ayşegül Güvenç;Yoshihito Okada;Esra Küpeli Akkol;Hayri Duman

  • Secoiridoid glucosides from Lonicera periclymenum

    Ihsan Calis;Otto Sticher

  • Triterpene saponins from the fruits of Hedera helix.

    E. Bedir;H. Kırmızıpekmez;O. Sticher;I. Çalış

  • Adjuvant effects of Astragalus saponins macrophyllosaponin B and astragaloside VII.

    Ayşe Nalbantsoy;Tuna Nesil;Seçil Erden;İhsan Çalış

  • Bioassay-guided isolation of anti-inflammatory and antinociceptive principles from a folk remedy, Rhododendron ponticum L. leaves

    Nurgun Erdemoglu;Esra Küpeli Akkol;Erdem Yesilada;Ihsan Calış

Frequent Co-Authors

Otto Sticher
Otto Sticher ETH Zurich
Anthony D. Wright
Anthony D. Wright University of Bonn
Sonia Piacente
Sonia Piacente University of Salerno
Chris M. Ireland
Chris M. Ireland University of Utah
Anthony Linden
Anthony Linden University of Zurich
Ikhlas A. Khan
Ikhlas A. Khan University of Mississippi
K. Hüsnü Can Başer
K. Hüsnü Can Başer Near East University
Reto Brun
Reto Brun University of Basel
Kemal Hüsnü Can Başer
Kemal Hüsnü Can Başer Near East University
Rita Patrizia Aquino
Rita Patrizia Aquino University of Salerno

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