World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
47
Citations
7957
World Ranking
15642
National Ranking
3938

Hugh O'Neill 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 Hugh O'Neill 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: 201 publications — 33rd percentile

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

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

Hugh O'Neill 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 Hugh O'Neill 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: 47 D-Index — 14th percentile

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

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

Overview

Hugh O'Neill is affiliated with Oak Ridge National Laboratory in the United States and has an extensive research portfolio primarily situated in Biochemistry, Genetics and Molecular Biology. Their research embraces subfields such as Molecular Biology, Biomedical Engineering, Biomaterials, Materials Chemistry, and Plant Science.

The scientist has contributed notably to topics including Advanced Cellulose Research Studies, Enzyme Structure and Function, Protein Structure and Dynamics, Lignin and Wood Chemistry, Biofuel production and bioconversion, Polysaccharides and Plant Cell Walls, and Nuclear Physics and Applications.

Frequent publication venues for Hugh O'Neill include:

  • Acta Crystallographica Section A Foundations and Advances
  • ACS Sustainable Chemistry & Engineering
  • Journal of Biological Chemistry
  • Goldschmidt Abstracts
  • Nature Communications

Notable recent papers authored or co-authored include:

  • Structural plasticity of SARS-CoV-2 3CL Mpro active site cavity revealed by room temperature X-ray crystallography, 2020, Nature Communications
  • Malleability of the SARS-CoV-2 3CL Mpro Active-Site Cavity Facilitates Binding of Clinical Antivirals, 2020, Structure
  • Unusual zwitterionic catalytic site of SARS-CoV-2 main protease revealed by neutron crystallography, 2020, Journal of Biological Chemistry
  • Potent and selective covalent inhibition of the papain-like protease from SARS-CoV-2, 2023, Nature Communications
  • Room-temperature X-ray crystallography reveals the oxidation and reactivity of cysteine residues in SARS-CoV-2 3CL Mpro: insights into enzyme mechanism and drug design, 2020, IUCrJ

Hugh O'Neill has collaborated frequently with the following researchers:

  • Sai Venkatesh Pingali
  • Volker S. Urban
  • Wellington Leite
  • Kevin L. Weiss
  • Brian H. Davison

Best Publications

  • Structural plasticity of SARS-CoV-2 3CL M pro active site cavity revealed by room temperature X-ray crystallography.

    Daniel W. Kneller;Gwyndalyn Phillips;Hugh M. O’Neill;Robert Jedrzejczak

  • Biomimetic synthesis of calcium-deficient hydroxyapatite in a natural hydrogel.

    Stacy A Hutchens;Roberto S. Benson;Barbara R Evans;Hugh Michael O'Neill

  • Palladium-bacterial cellulose membranes for fuel cells.

    Barbara R. Evans;Hugh M. O'Neill;Valerie P. Malyvanh;Ida Lee

  • Common processes drive the thermochemical pretreatment of lignocellulosic biomass

    Paul Langan;Paul Langan;Loukas Petridis;Loukas Petridis;Hugh M. O'Neill;Sai Venkatesh Pingali

  • High photo-electrochemical activity of thylakoid–carbon nanotube composites for photosynthetic energy conversion

    Jessica O. Calkins;Yogeswaran Umasankar;Hugh O'Neill;Ramaraja P. Ramasamy

  • Self-organized photosynthetic nanoparticle for cell-free hydrogen production

    Ifeyinwa J Iwuchukwu;Michael D Vaughn;Natalie Myers;Hugh Michael O'Neill;Hugh Michael O'Neill

  • Breakdown of cell wall nanostructure in dilute acid pretreated biomass.

    Sai Venkatesh Pingali;Volker S Urban;William T Heller;Joseph McGaughey

  • Mechanical formation of micro- and nano-plastic materials for environmental studies in agricultural ecosystems.

    A.F. Astner;D.G. Hayes;H. O'Neill;B.R. Evans

  • Effect of lignin content on changes occurring in poplar cellulose ultrastructure during dilute acid pretreatment

    Qining Sun;Marcus Foston;Xianzhi Meng;Daisuke Sawada

  • Dynamics of Protein and its Hydration Water: Neutron Scattering Studies on Fully Deuterated GFP

    Jonathan D. Nickels;Hugh O’Neill;Hugh O’Neill;Liang Hong;Liang Hong;Madhusudan Tyagi;Madhusudan Tyagi

  • A microbial fuel cell operating at low pH using the acidophile Acidiphilium cryptum.

    Abhijeet P. Borole;Hugh O’Neill;Costas Tsouris;Scott Cesar

  • The Shape of Native Plant Cellulose Microfibrils

    James D. Kubicki;Hui Yang;Daisuke Sawada;Hugh O’Neill

  • Dynamics of water bound to crystalline cellulose

    Hugh O'Neill;Hugh O'Neill;Sai Venkatesh Pingali;Loukas Petridis;Loukas Petridis;Junhong He

  • The Bio‐SANS instrument at the High Flux Isotope Reactor of Oak Ridge National Laboratory

    William T. Heller;Volker S. Urban;Gary W. Lynn;Kevin L. Weiss

  • Organization and Flexibility of Cyanobacterial Thylakoid Membranes Examined by Neutron Scattering

    Michelle Liberton;Lawrence E. Page;William B. O'Dell;Hugh O'Neill

  • A Structural Study of CESA1 Catalytic Domain of Arabidopsis Cellulose Synthesis Complex: Evidence for CESA Trimers

    Venu Gopal Vandavasi;Daniel K. Putnam;Qiu Zhang;Loukas Petridis

  • Malleability of the SARS-CoV-2 3CL Mpro Active-Site Cavity Facilitates Binding of Clinical Antivirals

    Daniel W. Kneller;Stephanie Galanie;Gwyndalyn Phillips;Gwyndalyn Phillips;Hugh M. O'Neill;Hugh M. O'Neill

  • Unusual zwitterionic catalytic site of SARS-CoV-2 main protease revealed by neutron crystallography.

    Daniel W. Kneller;Daniel W. Kneller;Gwyndalyn Phillips;Gwyndalyn Phillips;Kevin L. Weiss;Kevin L. Weiss;Swati Pant;Swati Pant

  • Generation of the configurational ensemble of an intrinsically disordered protein from unbiased molecular dynamics simulation.

    Utsab R. Shrestha;Puneet Juneja;Qiu Zhang;Viswanathan Gurumoorthy

  • Modification of the nanostructure of lignocellulose cell walls via a non-enzymatic lignocellulose deconstruction system in brown rot wood-decay fungi

    Barry Goodell;Yuan Zhu;Seong Kim;Kabindra Kafle

  • Characterization of the Influence of the Ionic Liquid 1-Butyl-3-methylimidazolium Chloride on the Structure and Thermal Stability of Green Fluorescent Protein

    William T Heller;Hugh Michael O'Neill;Qiu Zhang;Gary A Baker

Frequent Co-Authors

Eugene Mamontov
Eugene Mamontov Oak Ridge National Laboratory
Arthur J. Ragauskas
Arthur J. Ragauskas University of Tennessee at Knoxville
Jeremy C. Smith
Jeremy C. Smith University of Tennessee at Knoxville
Paul Langan
Paul Langan Oak Ridge National Laboratory
Alexei P. Sokolov
Alexei P. Sokolov University of Tennessee at Knoxville
Brian H. Davison
Brian H. Davison Oak Ridge National Laboratory
Gary A. Baker
Gary A. Baker University of Missouri
Andrzej Joachimiak
Andrzej Joachimiak Argonne National Laboratory
Andrey Kovalevsky
Andrey Kovalevsky Oak Ridge National Laboratory
Kunlun Hong
Kunlun Hong Oak Ridge National Laboratory

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