World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
42
Citations
8210
World Ranking
17410
National Ranking
65

Gulacti Topcu 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 Gulacti Topcu 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: 219 publications — 39th percentile

39% of scientists in this discipline score the same or lower.

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

Gulacti Topcu 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 Gulacti Topcu 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: 42 D-Index — 3rd percentile

3% of scientists in this discipline score the same or lower.

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

Overview

Gulacti Topcu is affiliated with Istanbul Technical University in Turkey. Their research spans key areas within Agricultural and Biological Sciences and Biochemistry, Genetics and Molecular Biology. Topcu's work notably includes molecular biology, plant science, food science, pharmacology, and organic chemistry, reflecting a multidisciplinary approach to natural product research and biochemistry.

Their research topics emphasize phytochemistry and biological activities, essential oils and antimicrobial activity, natural product bioactivities and synthesis, and cholinesterase and neurodegenerative diseases. Computational drug discovery methods and seaweed-derived bioactive compounds are also significant areas of study, alongside plant biochemistry and biosynthesis.

Topcu has contributed to the scientific community through publications in several prominent venues. These include Records of Natural Products, International Journal of Gynecology & Obstetrics, Chemistry & Biodiversity, Pharmaceutical Biology, and Organic Communications.

Frequent collaborators include Halil Şenol, Gülbahar Özge Alim Toraman, Ahmet C. Gören, Ebru Erol, and Michael Geary. Such collaborations have contributed to a body of work that incorporates various aspects of natural product research and medicinal chemistry.

Some recent publications authored or co-authored by Gulacti Topcu include:

  • Synthesis and Anticancer Activity of Novel Derivatives of α,β-Unsaturated Ketones Based on Oleanolic Acid: in Vitro and in Silico Studies against Prostate Cancer Cells, 2023, Chemistry & Biodiversity
  • Cytotoxic meroterpenoids from brown alga Stypopodium schimperi (Kützing) Verlaque & Boudouresque with comprehensive molecular docking & dynamics and ADME studies, 2023, Process Biochemistry
  • Synthesis of nitrogen-containing oleanolic acid derivatives as carbonic anhydrase and acetylcholinesterase inhibitors, 2023, Medicinal Chemistry Research
  • Selective in-vitro Enzymes' Inhibitory Activities of Fingerprints Compounds of Salvia Species and Molecular Docking Simulations., 2020, PubMed
  • Synthesis of new fatty acid derivatives of oleanane and ursane triterpenoids and investigation of their in vitro cytotoxic effects on 3T3 fibroblast and PC3 prostate cancer cell linesLines, 2020, Organic Communications

Best Publications

  • Antioxidant activity of stem and root extracts of Rhubarb (Rheum ribes) : An edible medicinal plant

    Mehmet Öztürk;Mehmet Öztürk;Fatma Aydoğmuş-Öztürk;Mehmet Emin Duru;Gülaçtı Topçu

  • Terpenoids from Salvia sclarea

    A Ulubelen;G Topcu;C Eriş;U Sönmez

  • Antimicrobial activity of propolis samples from two different regions of Anatolia.

    Murat Kartal;Sulhiye Yıldız;Serdar Kaya;Semra Kurucu

  • A new flavone from antioxidant extracts of Pistacia terebinthus

    Gülaçtı Topçu;Mehmet Ay;Ali Bilici;Cengiz Sarıkürkcü

  • Bioactive triterpenoids from Salvia species.

    Gülaçti Topçu

  • Antioxidant, anticholinesterase and antimicrobial constituents from the essential oil and ethanol extract of Salvia potentillifolia

    İbrahim Kivrak;Mehmet Emin Duru;Mehmet Öztürk;Nazime Mercan

  • Norditerpenoids and diterpenoids from Salvia multicaulis with antituberculous activity.

    Ayhan Ulubelen;Gülaçtì Topcu;Candan Bozok Johansson

  • Antioxidant abietane diterpenoids from Salvia barrelieri

    Ahmed Kabouche;Zahia Kabouche;Mehmet Öztürk;Mehmet Öztürk;Ufuk Kolak

  • Diterpenes from the berries of Juniperus excelsa.

    Gülaçti Topçu;Ramazan Erenler;Osman Çakmak;Candan Bozok Johansson

  • Studies in Natural Products Chemistry

    Ayhan Ulubelen;Gülaçti Topçu;Ufuk Kolak

  • Antioxidant and anticholinesterase active constituents from Micromeria cilicica by radical-scavenging activity-guided fractionation

    Mehmet Öztürk;Mehmet Öztürk;Mehmet Öztürk;Ufuk Kolak;Gülaçtı Topçu;Sevil Öksüz

  • Identification of cytotoxic sesquiterpenes from Laurus nobilis L.

    Aslı Barla;Gülaçtı Topçu;Sevil Öksüz;Gülendam Tümen

  • The chemical constituents and biological activity of essential oil of Lavandula stoechas ssp. stoechas.

    Ahmet Gören;Gülaçti Topçu;Gökhan Bilsel;Mine Bilsel

  • Antibacterial diterpenes from the roots of Salvia blepharochlaena.

    Ayhan Ulubelen;Sevil Öksüz;Gülaçtı Topcu;and Ahmet C. Gören

  • Brominated sesquiterpenes from the red alga Laurencia obtusa.

    Gulaçti Topcu;Zeynep Aydogmus;Sedat Imre;Ahmet C Gören

  • DNA as an affinity probe useful in the detection and isolation of biologically active natural products.

    John M. Pezzuto;Chun-Tao Che;David D. McPherson;Ji-Ping Zhu

  • Bioassay-guided isolation, identification of compounds from Origanum rotundifolium and investigation of their antiproliferative and antioxidant activities.

    Ramazan Erenler;Bilal Meral;Ozkan Sen;Mahfuz Elmastas

  • Antioxidant activity tests on novel triterpenoids from Salvia macrochlamys

    Guelactu Topcu;Abdulselam Ertas;Ufuk Kolak;Mehmet Oeztuerk

  • Evaluation of fruit extracts of six Turkish Juniperus species for their antioxidant, anticholinesterase and antimicrobial activities.

    Mehmet Oztürk;İbrahim Tümen;Aysel Uğur;Fatma Aydoğmuş-Öztürk

  • Chemical composition of the essential oil and hexane extract of Salvia chionantha and their antioxidant and anticholinesterase activities

    Gülsen Tel;Mehmet Öztürk;Mehmet Emin Duru;Mansur Harmandar

  • Terpenoids and Steroids from the Roots of Salvia blepharochlaena

    Ufuk Kolak;Gülaçti Topçu;Seher Birteksöz;Gülten Ötük

  • Cytotoxic and antibacterial sesquiterpenes from Inula graveolens

    Gülaçti Topçu;Sevil Öksüz;Sevil Öksüz;Hui-Ling Shieh;Geoffrey A. Cordell

Frequent Co-Authors

Ayhan Ulubelen
Ayhan Ulubelen Istanbul University
John M. Pezzuto
John M. Pezzuto Western New England University
Geoffrey A. Cordell
Geoffrey A. Cordell University of Florida
Wolfgang Voelter
Wolfgang Voelter University of Tübingen
M. Iqbal Choudhary
M. Iqbal Choudhary University of Karachi
Chun-Tao Che
Chun-Tao Che University of Illinois at Chicago
Hildebert Wagner
Hildebert Wagner Ludwig-Maximilians-Universität München
Lutfun Nahar
Lutfun Nahar Liverpool John Moores University
Heebyung Chai
Heebyung Chai The Ohio State University

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