World's Best Scientists 2026 revealed!
Leonid S. Brown

Leonid S. Brown

D-Index & Metrics

Chemistry

D-Index
60
Citations
10719
World Ranking
9878
National Ranking
262

Leonid S. Brown 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 Leonid S. Brown 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: 158 publications — 17th percentile

17% of scientists in this discipline score the same or lower.

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

Leonid S. Brown 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 Leonid S. Brown 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: 60 D-Index — 47th percentile

47% of scientists in this discipline score the same or lower.

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

Overview

Leonid S. Brown is affiliated with the University of Guelph in Canada. Their research primarily spans the fields of Neuroscience and Biochemistry, Genetics and Molecular Biology, with significant contributions in subfields such as Cellular and Molecular Neuroscience, Molecular Biology, Spectroscopy, Biomedical Engineering, and Cognitive Neuroscience.

The main topics explored in Brown's work include Photoreceptor and Optogenetics Research, Neuroscience and Neuropharmacology Research, Bioluminescence and Chemiluminescence Research, Molecular Communication and Nanonetworks, Neural Dynamics and Brain Function, Advanced NMR Techniques and Applications, and Plant and Biological Electrophysiology Studies.

Frequent publication venues for Brown's research include bioRxiv (Cold Spring Harbor Laboratory), Biophysical Journal, The Journal of Physical Chemistry B, mBio, and Biochimica et Biophysica Acta (BBA) - Biomembranes.

They have collaborated extensively with co-authors such as Elena G. Govorunova, Oleg A. Sineshchekov, John L. Spudich, Hai Li, and Ana-Nicoleta Bondar.

The following are selected recent publications from Brown's research portfolio:

  • Kalium channelrhodopsins are natural light-gated potassium channels that mediate optogenetic inhibition, 2022, Nature Neuroscience
  • RubyACRs, nonalgal anion channelrhodopsins with highly red-shifted absorption, 2020, Proceedings of the National Academy of Sciences
  • Mechanism of Inward Proton Transport in an Antarctic Microbial Rhodopsin, 2020, The Journal of Physical Chemistry B
  • The crystal structures of a chloride-pumping microbial rhodopsin and its proton-pumping mutant illuminate proton transfer determinants, 2020, Journal of Biological Chemistry
  • Cation and Anion Channelrhodopsins: Sequence Motifs and Taxonomic Distribution, 2021, mBio

Best Publications

  • Microbial and animal rhodopsins: structures, functions, and molecular mechanisms.

    Oliver P. Ernst;David Thomas Lodowski;Marcus Elstner;Peter Hegemann

  • Coherent control of retinal isomerization in bacteriorhodopsin.

    Valentyn I. Prokhorenko;Andrea M. Nagy;Stephen A. Waschuk;Leonid S. Brown

  • Glutamic Acid 204 is the Terminal Proton Release Group at the Extracellular Surface of Bacteriorhodopsin

    Leonid S. Brown;Jun Sasaki;Hideki Kandori;Akio Maeda

  • Protein conformational changes in the bacteriorhodopsin photocycle.

    Sriram Subramaniam;Martin Lindahl;Per Bullough;A.R Faruqi

  • Conversion of bacteriorhodopsin into a chloride ion pump.

    Jun Sasaki;Leonid S. Brown;Young-Shin Chon;Hideki Kandori

  • Proton transfers in the photochemical reaction cycle of proteorhodopsin.

    Andrei K. Dioumaev;Leonid S. Brown;Jennifer Shih;Elena N. Spudich

  • Solid-state NMR spectroscopy structure determination of a lipid-embedded heptahelical membrane protein.

    Shenlin Wang;Rachel A. Munro;Lichi Shi;Lichi Shi;Izuru Kawamura;Izuru Kawamura

  • Proton binding within a membrane protein by a protonated water cluster

    Florian Garczarek;Leonid S. Brown;Janos K. Lanyi;Klaus Gerwert

  • Leptosphaeria rhodopsin: Bacteriorhodopsin-like proton pump from a eukaryote

    Stephen A. Waschuk;Arandi G. Bezerra;Lichi Shi;Leonid S. Brown

  • Existence of a Proton Transfer Chain in Bacteriorhodopsin: Participation of Glu-194 in the Release of Protons to the Extracellular Surface†

    Andrei K. Dioumaev;Hans Thomas Richter;Leonid S. Brown;Michikazu Tanio

  • Crystallographic structures of the M and N intermediates of bacteriorhodopsin: assembly of a hydrogen-bonded chain of water molecules between Asp-96 and the retinal Schiff base.

    Brigitte Schobert;Leonid S. Brown;Janos K. Lanyi

  • A linkage of the pKa's of asp-85 and glu-204 forms part of the reprotonation switch of bacteriorhodopsin.

    Hans-Thomas Richter;Leonid S. Brown;Richard Needleman;Janos K. Lanyi

  • Three-dimensional solid-state NMR study of a seven-helical integral membrane proton pump--structural insights.

    Lichi Shi;Mumdooh A.M. Ahmed;Wurong Zhang;Gregg Whited

  • Energy coupling in an ion pump: The reprotonation switch of bacteriorhodopsin

    Mikio Kataoka;Hironari Kamikubo;Fumio Tokunagga;Leonid S. Brown

  • Conformation of a Seven-Helical Transmembrane Photosensor in the Lipid Environment†

    Lichi Shi;Izuru Kawamura;Kwang Hwan Jung;Leonid S. Brown

  • Transient channel-opening in bacteriorhodopsin: an EPR study.

    Thorgeir E. Thorgeirsson;Wenzhong Xiao;Leonid S. Brown;Richard Needleman

  • Characterization of the photochemical reaction cycle of proteorhodopsin

    György Váró;Leonid S. Brown;Melinda Lakatos;Janos K. Lanyi

  • Light-driven chloride ion transport by halorhodopsin from Natronobacterium pharaonis. 1. The photochemical cycle.

    Gyorgy Varo;Leonid S. Brown;Jun Sasaki;Hideki Kandori

  • The Photocycle and Proton Translocation Pathway in a Cyanobacterial Ion-Pumping Rhodopsin

    Mylene R.M. Miranda;Ah Rheum Choi;Lichi Shi;Arandi G. Bezerra;Arandi G. Bezerra

  • Proton-Detected Solid-State NMR Reveals Intramembrane Polar Networks in a Seven-Helical Transmembrane Protein Proteorhodopsin

    Meaghan E Ward;Lichi Shi;Evelyn Lake;Sridevi Krishnamurthy

Frequent Co-Authors

Janos K. Lanyi
Janos K. Lanyi University of California, Irvine
Richard Needleman
Richard Needleman Wayne State University
Hideki Kandori
Hideki Kandori Nagoya Institute of Technology
R. J. Dwayne Miller
R. J. Dwayne Miller University of Toronto
Lars Konermann
Lars Konermann University of Western Ontario
Gane Ka-Shu Wong
Gane Ka-Shu Wong University of Alberta
Michael Melkonian
Michael Melkonian Max Planck Society
Mordechai Sheves
Mordechai Sheves Weizmann Institute of Science
Dominique P. Bureau
Dominique P. Bureau University of Guelph
John L. Spudich
John L. Spudich The University of Texas Health Science Center at Houston

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