World's Best Scientists 2026 revealed!

D-Index & Metrics

Biology and Biochemistry

D-Index
55
Citations
11017
World Ranking
15042
National Ranking
6296

Chemistry

D-Index
55
Citations
11011
World Ranking
12105
National Ranking
3244

David B. Knaff 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 David B. Knaff 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: 264 publications — 54th percentile

54% of scientists in this discipline score the same or lower.

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

David B. Knaff 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 David B. Knaff 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: 55 D-Index — 33rd percentile

33% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 1984 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

David B. Knaff was affiliated with Texas Tech University in the United States. Their research spanned several interconnected fields within science, particularly focusing on biochemistry, genetics and molecular biology, energy, and physics and astronomy.

The scientist's work included contributions to subfields such as molecular biology, renewable energy, sustainability and the environment, and atomic and molecular physics and optics. The primary research topics covered by David B. Knaff included photosynthetic processes and mechanisms, algal biology and biofuel production, and spectroscopy and quantum chemical studies.

Their publication record includes the following recent research paper:

  • Thermodynamics of ferredoxin binding to cyanobacterial nitrate reductase, 2020, Photosynthesis Research

David B. Knaff frequently collaborated with several coauthors during their research career. Notable coauthors included:

  • Anurag P. Srivastava
  • Neelam Mishra
  • Ramachandra L. A. Prasad
  • P. Rajesh

The scientist's works were published in the journal Photosynthesis Research, which appeared as a frequent venue for their research publications.

During their career, David B. Knaff received recognition as a Fellow of the American Association for the Advancement of Science (AAAS) in 1984.

Best Publications

  • Plant glutathione peroxidases are functional peroxiredoxins distributed in several subcellular compartments and regulated during biotic and abiotic stresses.

    Nicolas Navrot;Valérie Collin;José Gualberto;Eric Gelhaye

  • The Arabidopsis Plastidial Thioredoxins NEW FUNCTIONS AND NEW INSIGHTS INTO SPECIFICITY

    Valérie Collin;Emmanuelle Issakidis-Bourguet;Christophe Marchand;Masakazu Hirasawa

  • Ferredoxin-dependent chloroplast enzymes.

    David B. Knaff;Masakazu Hirasawa

  • A specific form of thioredoxin h occurs in plant mitochondria and regulates the alternative oxidase

    Eric Gelhaye;Nicolas Rouhier;Joelle Gérard;Yves Jolivet

  • Characterization of plastidial thioredoxins from Arabidopsis belonging to the new y-type.

    Valérie Collin;Petra Lamkemeyer;Myroslawa Miginiac-Maslow;Masakazu Hirasawa

  • Glutamate synthase: structural, mechanistic and regulatory properties, and role in the amino acid metabolism

    Akira Suzuki;David B. Knaff

  • Functional, structural, and spectroscopic characterization of a glutathione-ligated [2Fe–2S] cluster in poplar glutaredoxin C1

    Nicolas Rouhier;Hideaki Unno;Sibali Bandyopadhyay;Lluis Masip

  • Energy Transduction in Biological Membranes

    William A. Cramer;David B. Knaff

  • Oxidation-Reduction Properties of Chloroplast Thioredoxins, Ferredoxin:Thioredoxin Reductase, and Thioredoxin f-Regulated Enzymes†

    Masakazu Hirasawa;Peter Schürmann;Jean-Pierre Jacquot;Wanda Manieri

  • Regulation of the plant-type 5'-adenylyl sulfate reductase by oxidative stress.

    Julie-Ann Bick;Aaron T. Setterdahl;David B. Knaff;Yichang Chen

  • Poplar Peroxiredoxin Q. A Thioredoxin-Linked Chloroplast Antioxidant Functional in Pathogen Defense

    Nicolas Rouhier;Eric Gelhaye;Jose M. Gualberto;Marie-Noelle Jordy

  • A role for cytochrome c and cytochrome c peroxidase in electron shuttling from Erv1

    Deepa V Dabir;Edward P Leverich;Sung-Kun Kim;Sung-Kun Kim;Frederick D Tsai

  • Electron spin echo envelope modulation spectroscopy supports the suggested coordination of two histidine ligands to the Rieske Fe-S centers of the cytochrome b6f complex of spinach and the cytochrome bc1 complexes of Rhodospirillum rubrum, Rhodobacter sphaeroides R-26, and bovine heart mitochondria.

    R. D. Britt;K. Sauer;M. P. Klein;D. B. Knaff

  • Sulfur Metabolism in Phototrophic Organisms

    Rüdiger Hell;Christiane Dahl;David Knaff;Thomas Leustek

  • Pattern of expression and substrate specificity of chloroplast ferredoxins from Chlamydomonas reinhardtii

    Aimee M. Terauchi;Shu-Fen Lu;Mirko Zaffagnini;Shane Tappa

  • LIGHT-INDUCED OXIDATION OF A CHLOROPLAST B-TYPE CYTOCHROME AT -189 degrees C.

    David B. Knaff;Daniel I. Arnon

  • Structure of Spinach Nitrite Reductase: Implications for Multi-electron Reactions by the Iron-Sulfur:Siroheme Cofactor

    Uma Swamy;Meitian Wang;Jatinda N. Tripathy;Sung Kun Kim

  • Binding of ferredoxin to ferredoxin:NADP+ oxidoreductase: the role of carboxyl groups, electrostatic surface potential, and molecular dipole moment.

    Antonio R. De Pascalis;Ilian Jelesarov;Friederike Ackermann;Hans Rudolf Bosshard

  • Iron-sulfur proteins of the green photosynthetic bacterium Chlorobium

    David B. Knaff;Richard Malkin

  • Anoxygenic photosynthetic bacteria

    David B. Knaff

Frequent Co-Authors

Michael K. Johnson
Michael K. Johnson University of Georgia
Richard Malkin
Richard Malkin University of California, Berkeley
Thomas Leustek
Thomas Leustek Rutgers, The State University of New Jersey
Peter Schürmann
Peter Schürmann University of Neuchâtel
Jean-Pierre Jacquot
Jean-Pierre Jacquot University of Lorraine
Myroslawa Miginiac-Maslow
Myroslawa Miginiac-Maslow University of Paris-Saclay
James P. Allen
James P. Allen Arizona State University
Victor L. Davidson
Victor L. Davidson University of Central Florida
Daniel I. Arnon
Daniel I. Arnon University of California, Berkeley
Nicolas Rouhier
Nicolas Rouhier University of Lorraine

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