World's Best Scientists 2026 revealed!
Karen J. Brewer

Karen J. Brewer

D-Index & Metrics

Chemistry

D-Index
42
Citations
5569
World Ranking
17613
National Ranking
4301

Karen J. Brewer 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 Karen J. Brewer 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: 151 publications — 14th percentile

14% of scientists in this discipline score the same or lower.

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

Karen J. Brewer 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 Karen J. Brewer 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

Karen J. Brewer was affiliated with Virginia Tech in the United States. Their research contributions spanned several fields, primarily focusing on Medicine and Agricultural and Biological Sciences.

The scientist's work covered multiple subfields including Oncology, Organic Chemistry, Pulmonary and Respiratory Medicine, Ecology, Evolution, Behavior and Systematics, and Genetics. These areas reflected a diverse interest across life sciences and medical research.

Brewer's main topics of study included:

  • Metal complexes synthesis and properties
  • Click Chemistry and Applications
  • Photodynamic Therapy Research Studies
  • Plant and animal studies
  • Insect and Arachnid Ecology and Behavior
  • Insect behavior and control techniques
  • Health Sciences Research and Education

Their recent papers demonstrated this range of interest and interdisciplinary approach. These included:

  • "Photodynamic antimicrobial studies on a Ruthenium-based metal complex," published in 2022 in Inorganica Chimica Acta
  • "Stings in humans by a parasitoid wasp of the genus Sclerodermus (Hymenoptera: Bethylidae) in Venezuela," published in 2021 in Zenodo (CERN European Organization for Nuclear Research)
  • "Measuring the value and impact of health sciences libraries: planning an update and replication of the Rochester Study," published in 2020 by UNC Libraries

Throughout their career, Brewer collaborated with various co-authors, including Avijita Jain, A. Winkel, Charles Brewer-Carías, Jorge M. González, and Kathel Dunn. These collaborations appeared across different domains of research, highlighting multidisciplinary and cross-institutional efforts.

The scientist published in several venues such as Inorganica Chimica Acta, Zenodo (CERN European Organization for Nuclear Research), and UNC Libraries, indicating engagement with both peer-reviewed journals and institutional repositories.

Best Publications

  • Photocatalytic hydrogen production from water employing a Ru, Rh, Ru molecular device for photoinitiated electron collection.

    Mark Elvington;Jared Brown;Shamindri M. Arachchige;Karen J. Brewer

  • Synthesis and characterization of a series of novel rhodium and iridium complexes containing polypyridyl bridging ligands: Potential uses in the development of multimetal catalysts for carbon dioxide reduction

    Seth C. Rasmussen;Mark M. Richter;Eugene Yi;Helen Place

  • Photoinitiated Electron Collection in a Mixed-Metal Trimetallic Complex of the Form {[(bpy)2Ru(dpb)]2IrCl2}(PF6)5 (bpy = 2,2'-Bipyridine and dpb = 2,3-Bis(2-pyridyl)benzoquinoxaline)

    Sharon M. Molnar;Girlie Nallas;Jon S. Bridgewater;Karen J. Brewer

  • Building Block Approach to the Construction of Long-Lived Osmium(II) and Ruthenium(II) Multimetallic Complexes Incorporating the Tridentate Bridging Ligand 2,3,5,6-Tetrakis(2-pyridyl)pyrazine.

    Lisa M. Vogler;Karen J. Brewer

  • Design Aspects for the Development of Mixed-Metal Supramolecular Complexes Capable of Visible Light Induced Photocleavage of DNA

    Alvin A. Holder;Shawn Swavey;Karen J. Brewer

  • Synthesis, structure, and characterization of a mixed-valence manganese(III)-manganese(IV) bis(.mu.-oxo) complex with a macrocyclic tetraaza ligand

    Karen J. Brewer;Melvin Calvin;Richard S. Lumpkin;John W. Otvos

  • Designing Red‐Light‐Activated Multifunctional Agents for the Photodynamic Therapy

    Samantha L. H. Higgins;Karen J. Brewer

  • Luminescent tetrametallic complexes of ruthenium

    W.R. Murphy;K.J. Brewer;G. Gettliffe;J.D. Petersen

  • Synthesis, characterization, and DNA binding properties of a series of Ru, Pt mixed-metal complexes.

    R. Lee Williams;H. Nathaniel Toft;Brenda Winkel;Karen J. Brewer

  • Investigation of the photochemical, electrochemical, and spectroelectrochemical properties of an iridium(III)/ruthenium(II) mixed-metal complex bridged by 2,3,5,6-tetrakis(2-pyridyl)pyrazine

    Lisa M. Vogler;Brian Scott;Karen J. Brewer

  • Redox, spectroscopic, and photophysical properties of Ru-Pt mixed-metal complexes incorporating 4,7-diphenyl-1,10-phenanthroline as efficient DNA binding and photocleaving agents.

    Samantha L. H. Higgins;Travis A. White;Brenda S. J. Winkel;Karen J. Brewer

  • Photoinitiated electron collection in polyazine chromophores coupled to water reduction catalysts for solar H2 production

    Gerald F. Manbeck;Karen J. Brewer

  • Design considerations for a system for photocatalytic hydrogen production from water employing mixed-metal photochemical molecular devices for photoinitiated electron collection.

    Shamindri M. Arachchige;Jared R. Brown;Eric Chang;Avijita Jain

  • The next generation of (polyazine)ruthenium(II) complexes

    K.J. Brewer;W.R. Murphy;S.R. Spurlin;J.D. Petersen

  • Photoinitiated electron collection at a metal in a rhodium-centered mixed-metal supramolecular complex.

    Mark Elvington;Karen J. Brewer

  • Visible Light Induced Photocleavage of DNA by a Mixed-Metal Supramolecular Complex: [{(bpy)2Ru(dpp)}2RhCl2]5+

    Shawn Swavey;Karen J. Brewer

  • Photochemical hydrogen production from water using the new photocatalyst [{(bpy)2Ru(dpp)}2RhBr2](PF6)5

    Shamindri M. Arachchige;Jared Brown;Karen J. Brewer

  • Metal to ligand charge transfer induced DNA photobinding in a Ru(II)-Pt(II) supramolecule using red light in the therapeutic window: a new mechanism for DNA modification.

    Samantha L. H. Higgins;Allison J. Tucker;Brenda S. J. Winkel;Karen J. Brewer

  • A NEW CLASS OF SUPRAMOLECULAR, MIXED-METAL DNA-BINDING AGENTS : THE INTERACTION OF RUII,PTII AND OSII,PTII BIMETALLIC COMPLEXES WITH DNA

    Matthew Milkevitch;Hannah Storrie;Eric Brauns;Karen J. Brewer

  • Investigation of the spectroscopic, electrochemical, and spectroelectrochemical properties of osmium(II) complexes incorporating polyazine bridging ligands : formation of the Os/Os and Os/Ru mixed-valence complexes

    Mark M. Richter;Karen J. Brewer

  • Solar energy conversion using photochemical molecular devices: photocatalytic hydrogen production from water using mixed-metal supramolecular complexes

    Krishnan Rangan;Shamindri M. Arachchige;Jared R. Brown;Karen J. Brewer

Frequent Co-Authors

Brian L. Scott
Brian L. Scott Los Alamos National Laboratory
Robert B. Moore
Robert B. Moore Virginia Tech
Melvin Calvin
Melvin Calvin University of California, Berkeley
Roger D. Willett
Roger D. Willett Washington State University
Brian Storrie
Brian Storrie University of Arkansas for Medical Sciences
Diego Troya
Diego Troya Virginia Tech
Etsuko Fujita
Etsuko Fujita Brookhaven National Laboratory
Larry T. Taylor
Larry T. Taylor Virginia Tech
Kenneth J. Takeuchi
Kenneth J. Takeuchi Stony Brook University
Ruth Pachter
Ruth Pachter Wright-Patterson Air Force Base

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