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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 47 15642 14107 3938 3230 201 7957

Hugh O'Neill publications per year

The chart shows the history of publications by Hugh O'Neill between 1995 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Hugh O'Neill published across 31 years, from 1995 to 2025, averaging 9 papers a year. Output peaked at 24 publications in 2024. 37 of the 279 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1995 to 2025. Vertical axis: number of publications, 0 to 24. Peak 24 publications in 2024. 1995: 1 publication 1996: 0 publications 1997: 0 publications 1998: 2 publications 1999: 0 publications 2000: 0 publications 2001: 2 publications 2002: 2 publications 2003: 2 publications 2004: 2 publications 2005: 2 publications 2006: 2 publications 2007: 5 publications 2008: 6 publications 2009: 7 publications 2010: 12 publications 2011: 11 publications 2012: 16 publications 2013: 15 publications 2014: 20 publications 2015: 10 publications 2016: 9 publications 2017: 22 publications 2018: 11 publications 2019: 17 publications 2020: 16 publications 2021: 13 publications 2022: 15 publications 2023: 22 publications 2024: 24 publications 2025: 13 publications
1995 2025

279 publications in total across all disciplines

View publications per year as a table
Hugh O'Neill: publications per year, 1995 to 2025
Year Publications
1995 1
1996 0
1997 0
1998 2
1999 0
2000 0
2001 2
2002 2
2003 2
2004 2
2005 2
2006 2
2007 5
2008 6
2009 7
2010 12
2011 11
2012 16
2013 15
2014 20
2015 10
2016 9
2017 22
2018 11
2019 17
2020 16
2021 13
2022 15
2023 22
2024 24
2025 13
Total 279
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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.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 201–220 publications, is where this scientist sits. 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
61–80 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.

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281 201
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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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.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 46–47 D-Index, is where this scientist sits. 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
40–41 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.

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776 47
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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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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