World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
48
Citations
7942
World Ranking
15278
National Ranking
3871

Ryszard Jankowiak 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 Ryszard Jankowiak 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: 238 publications — 46th percentile

46% of scientists in this discipline score the same or lower.

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

Ryszard Jankowiak 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 Ryszard Jankowiak 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: 48 D-Index — 16th percentile

16% of scientists in this discipline score the same or lower.

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

Overview

Ryszard Jankowiak is affiliated with Kansas State University in the United States and has contributed extensively to research in biochemistry, genetics, molecular biology, neuroscience, and physics and astronomy. Their work spans several overlapping disciplines, including molecular biology, cellular and molecular neuroscience, atomic and molecular physics and optics, plant science, and electrochemistry.

The primary focus of Jankowiak's research lies in photosynthetic processes and mechanisms, with significant exploration into photoreceptor and optogenetics research as well as spectroscopy and quantum chemical studies. Additional topics of investigation by this scientist include light effects on plants, electrochemical analysis and applications, photochemistry and electron transfer studies, and advanced fluorescence microscopy techniques.

Ryszard Jankowiak has published research in multiple scientific journals. Frequent publication venues include:

  • Nature Communications
  • The Journal of Physical Chemistry B
  • The Journal of Chemical Physics
  • ACS Omega
  • International Journal of Molecular Sciences

Notable recent papers authored or co-authored by Jankowiak include:

  • "The structure of a red-shifted photosystem I reveals a red site in the core antenna", 2020, Nature Communications
  • "On the Red Antenna States of Photosystem I Mutants from Cyanobacteria Synechocystis PCC 6803", 2020, The Journal of Physical Chemistry B
  • "Exciton Lifetime Distributions and Population Dynamics in the FMO Protein Complex from Prosthecochloris aestuarii", 2021, ACS Omega
  • "Frequency-Domain Spectroscopic Study of the Photosystem I Supercomplexes, Isolated IsiA Monomers, and the Intact IsiA Ring", 2022, The Journal of Physical Chemistry B
  • "High-Resolution Frequency-Domain Spectroscopic and Modeling Studies of Photosystem I (PSI), PSI Mutants and PSI Supercomplexes", 2024, International Journal of Molecular Sciences

Jankowiak has collaborated frequently with several researchers, including:

  • Anton Khmelnitskiy
  • Hila Toporik
  • Yuval Mazor
  • T. Reinot
  • Zachary Dobson

Best Publications

  • Catechol estrogen quinones as initiators of breast and other human cancers: Implications for biomarkers of susceptibility and cancer prevention ☆

    Ercole Cavalieri;Dhubajyoti Chakravarti;Joseph Guttenplan;Elizabeth Hart

  • SPECTRAL HOLE-BURNING SPECTROSCOPY IN AMORPHOUS MOLECULAR SOLIDS AND PROTEINS

    R. Jankowiak;J. M. Hayes;G. J. Small

  • Electrochemically deposited metal nanoparticles for enhancing the performance of microfluidic MEMS in biochemical analysis

    Abdulilah Dawoud Bani-Yaseen;Toshikazo Kawaguchi;Ryszard Jankowiak

  • Site selective and single complex laser-based spectroscopies: a window on excited state electronic structure, excitation energy transfer, and electron-phonon coupling of selected photosynthetic complexes.

    Ryszard Jankowiak;Mike Reppert;Valter Zazubovich;Jörg Pieper;Jörg Pieper

  • Hole-burning spectroscopy and relaxation dynamics of amorphous solids at low temperatures.

    R. Jankowiak;G. J. Small

  • Expanded analysis of benzo[a]pyrene-DNA adducts formed in vitro and in mouse skin: their significance in tumor initiation

    Liang Chen;Prabu D. Devanesan;Sheila Higginbotham;Freek Ariese

  • Identification and quantitation of benzo[a]pyrene-DNA adducts formed in mouse skin.

    Eleanor G. Rogan;Prabhakar D. Devanesan;N. V. S. RamaKrishna;Sheila Higginbotham

  • Identification and quantitation of benzo[a]pyrene-DNA adducts formed by rat liver microsomes in vitro.

    P. D. Devanesan;N. V S RamaKrishna;N. V S RamaKrishna;N. V S RamaKrishna;R. Todorovic;R. Todorovic;R. Todorovic;Eleanor G Rogan

  • On the shape of the phonon spectral density in photosynthetic complexes.

    Adam Kell;Ximao Feng;Mike Reppert;Ryszard Jankowiak

  • Nonexponential hole burning in organic glasses

    R. Jankowiak;R. Richert;H. Bassler

  • Transient and persistent hole burning of the reaction center of photosystem II

    Ryszard Jankowiak;Deming Tang;Gerald J. Small;Michael Seibert

  • Comparison of the LH2 Antenna Complexes of Rhodopseudomonas acidophila (Strain 10050) and Rhodobacter sphaeroides by High-Pressure Absorption, High-Pressure Hole Burning, and Temperature-Dependent Absorption Spectroscopies

    † H.-M. Wu;M. Ratsep;R. Jankowiak;and R. J. Cogdell

  • Femtosecond and Hole-Burning Studies of B800's Excitation Energy Relaxation Dynamics in the LH2 Antenna Complex of Rhodopseudomonas acidophila (Strain 10050)

    H.-M. Wu;S. Savikhin;N. R. S. Reddy;R. Jankowiak

  • Excited-state structure and energy-transfer dynamics of two different preparations of the reaction center of photosystem II: a hole-burning study

    D. Tang;R. Jankowiak;M. Seibert;C. F. Yocum

  • Identification and quantitation of dibenzo[a,l]pyrene-DNA adducts formed by rat liver microsomes in vitro: Preponderance of depurinating adducts

    K. M. Li;R. Todorovic;Eleanor G. Rogan;Ercole L. Cavalieri

  • Primary donor state mode structure and energy transfer in bacterial reaction centers

    S. G. Johnson;D. Tang;R. Jankowiak;J. M. Hayes

  • Fluorescence line narrowing: a high-resolution window on DNA and protein damage from chemical carcinogens.

    Ryszard Jankowiak;Gerald J. Small

  • Qy-Level Structure and Dynamics of Solubilized Light-Harvesting Complex II of Green Plants: Pressure and Hole Burning Studies

    J. Pieper;M. Ratsep;R. Jankowiak;K.-D. Irrgang

  • Challenges facing an understanding of the nature of low-energy excited states in photosynthesis.

    Jeffrey R. Reimers;Jeffrey R. Reimers;Malgorzata Biczysko;Douglas Bruce;David F. Coker

  • Mechanism of metabolic activation of the potent carcinogen 7,12-dimethylbenz[a]anthracene

    N. V S RamaKrishna;P. D. Devanesan;Eleanor G Rogan;Ercole Cavalieri

Frequent Co-Authors

Gerald J. Small
Gerald J. Small Iowa State University
Ercole L. Cavalieri
Ercole L. Cavalieri University of Nebraska Medical Center
Michael Seibert
Michael Seibert National Renewable Energy Laboratory
Freek Ariese
Freek Ariese Vrije Universiteit Amsterdam
Robert E. Blankenship
Robert E. Blankenship Washington University in St. Louis
Jun Li
Jun Li Xi'an Jiaotong University
Michael L. Gross
Michael L. Gross Washington University in St. Louis
Nicholas E. Geacintov
Nicholas E. Geacintov New York University
John M. Hayes
John M. Hayes Woods Hole Oceanographic Institution
David M. Tiede
David M. Tiede Argonne National Laboratory

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