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Biology and Biochemistry
Ireland
2026

D-Index & Metrics

Biology and Biochemistry

D-Index
95
Citations
34761
World Ranking
1894
National Ranking
8

Fergal J. O'Brien publication distribution in Biology and Biochemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where Fergal J. O'Brien sits on this spectrum.

47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 414 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 849 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 950 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 841 scientists 207–216 publications: 735 scientists 217–226 publications: 709 scientists 227–236 publications: 651 scientists 237–246 publications: 605 scientists 247–256 publications: 510 scientists 257–266 publications: 524 scientists 267–276 publications: 434 scientists 277–286 publications: 418 scientists 287–296 publications: 350 scientists 297–306 publications: 363 scientists 307–316 publications: 315 scientists 317–326 publications: 296 scientists 327–336 publications: 261 scientists 337–346 publications: 240 scientists 347–356 publications: 219 scientists 357–366 publications: 197 scientists 367–376 publications: 154 scientists 377–386 publications: 161 scientists 387–396 publications: 155 scientists 397–406 publications: 145 scientists 407–416 publications: 124 scientists 417–426 publications: 112 scientists 427–436 publications: 132 scientists 437–446 publications: 116 scientists 447–456 publications: 99 scientists 457–466 publications: 81 scientists 467–476 publications: 91 scientists 477–486 publications: 80 scientists 487–496 publications: 80 scientists 497–506 publications: 60 scientists 507–516 publications: 36 scientists 517–526 publications: 46 scientists 527–536 publications: 54 scientists 537–546 publications: 44 scientists 547–556 publications: 43 scientists 557–566 publications: 43 scientists 567–576 publications: 42 scientists 577–586 publications: 25 scientists 587–596 publications: 34 scientists 597–606 publications: 23 scientists 607–616 publications: 33 scientists 617–626 publications: 31 scientists 627–636 publications: 27 scientists 637–646 publications: 25 scientists 647–656 publications: 28 scientists 657–666 publications: 34 scientists 667–676 publications: 18 scientists 677–686 publications: 16 scientists 687–696 publications: 10 scientists 697–706 publications: 12 scientists 707–716 publications: 21 scientists 717–726 publications: 12 scientists 727–736 publications: 12 scientists 737–746 publications: 10 scientists 747–756 publications: 7 scientists 757–766 publications: 13 scientists 767–776 publications: 15 scientists 777–786 publications: 13 scientists 787–796 publications: 9 scientists 797–806 publications: 9 scientists 807–816 publications: 7 scientists 817–826 publications: 4 scientists 827–836 publications: 9 scientists 837–846 publications: 7 scientists 847–856 publications: 3 scientists 857–866 publications: 5 scientists 867–876 publications: 5 scientists 877–886 publications: 11 scientists 887–896 publications: 3 scientists 897–906 publications: 4 scientists 907–916 publications: 7 scientists 917–926 publications: 5 scientists 927–936 publications: 6 scientists 937–946 publications: 6 scientists 947–956 publications: 3 scientists 957–966 publications: 7 scientists 967–976 publications: 2 scientists 977–986 publications: 2 scientists 987–996 publications: 1 scientists 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientists 1,028+ publications: 100 scientists
47 publications 1,028+

This scientist: 372 publications — 87th percentile

87% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,028 publications or more.

Fergal J. O'Brien D-index placement in Biology and Biochemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Fergal J. O'Brien sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 317 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 900 scientists 52–53 D-Index: 1,026 scientists 54–55 D-Index: 1,150 scientists 56–57 D-Index: 1,236 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,163 scientists 62–63 D-Index: 1,131 scientists 64–65 D-Index: 1,032 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 715 scientists 72–73 D-Index: 709 scientists 74–75 D-Index: 596 scientists 76–77 D-Index: 512 scientists 78–79 D-Index: 473 scientists 80–81 D-Index: 412 scientists 82–83 D-Index: 373 scientists 84–85 D-Index: 358 scientists 86–87 D-Index: 285 scientists 88–89 D-Index: 273 scientists 90–91 D-Index: 227 scientists 92–93 D-Index: 208 scientists 94–95 D-Index: 193 scientists 96–97 D-Index: 153 scientists 98–99 D-Index: 157 scientists 100–101 D-Index: 148 scientists 102–103 D-Index: 120 scientists 104–105 D-Index: 113 scientists 106–107 D-Index: 100 scientists 108–109 D-Index: 86 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 72 scientists 114–115 D-Index: 73 scientists 116–117 D-Index: 64 scientists 118–119 D-Index: 53 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 54 scientists 124–125 D-Index: 43 scientists 126–127 D-Index: 38 scientists 128–129 D-Index: 49 scientists 130–131 D-Index: 26 scientists 132–133 D-Index: 18 scientists 134–135 D-Index: 23 scientists 136–137 D-Index: 32 scientists 138–139 D-Index: 32 scientists 140–141 D-Index: 27 scientists 142–143 D-Index: 19 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 12 scientists 148–149 D-Index: 16 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 10 scientists 154–155 D-Index: 13 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 9 scientists 162–163 D-Index: 13 scientists 164–165 D-Index: 4 scientists 166 D-Index: 4 scientists 167+ D-Index: 98 scientists
40 D-Index 167+

This scientist: 95 D-Index — 91st percentile

91% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

Research.com Recognitions

  • 2026 - Research.com Biology and Biochemistry in Ireland Leader Award
  • 2025 - Research.com Biology and Biochemistry in Ireland Leader Award
  • 2023 - Research.com Biology and Biochemistry in Ireland Leader Award
  • 2022 - Research.com Biology and Biochemistry in Ireland Leader Award

Overview

Fergal J. O'Brien is affiliated with the Royal College of Surgeons in Ireland. Their research primarily spans the field of Medicine, with a focus on Surgery, Biomedical Engineering, Biomaterials, Rheumatology, and Pulmonary and Respiratory Medicine. The scholar's work covers a range of topics including Bone Tissue Engineering Materials, Electrospun Nanofibers in Biomedical Applications, Osteoarthritis Treatment and Mechanisms, Wound Healing and Treatments, Tissue Engineering and Regenerative Medicine, Mesenchymal Stem Cell Research, and 3D Printing in Biomedical Research.

O'Brien has contributed to multiple frequent publication venues, reflecting involvement in diverse areas of biomedical science. These venues include:

  • European Urology Open Science
  • Acta Biomaterialia
  • Advanced Healthcare Materials
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Biomaterials Science

Among the recent papers authored or co-authored by O'Brien are:

  • Mechanosignalling in cartilage: an emerging target for the treatment of osteoarthritis, 2021, Nature Reviews Rheumatology
  • Bone biomaterials for overcoming antimicrobial resistance: Advances in non-antibiotic antimicrobial approaches for regeneration of infected osseous tissue, 2021, Materials Today
  • 3D Printing of Multifunctional Conductive Polymer Composite Hydrogels, 2023, Advanced Functional Materials
  • 3D-Printed Gelatin Methacrylate Scaffolds with Controlled Architecture and Stiffness Modulate the Fibroblast Phenotype towards Dermal Regeneration, 2021, Polymers
  • 3D bioprinting of cartilaginous templates for large bone defect healing, 2022, Acta Biomaterialia

Frequent collaborators include Niall F. Davis, Eoghan M. Cunnane, Adrian Dervan, Ian Woods, and Caroline M. Curtin. These partnerships indicate an active engagement with researchers in related fields and interdisciplinary studies.

Best Publications

  • Biomaterials & scaffolds for tissue engineering

    Fergal J. O'Brien

  • The effect of mean pore size on cell attachment, proliferation and migration in collagen–glycosaminoglycan scaffolds for bone tissue engineering

    Ciara M. Murphy;Matthew G. Haugh;Fergal J. O'Brien;Fergal J. O'Brien

  • The effect of pore size on cell adhesion in collagen-GAG scaffolds.

    Fergal J O'Brien;B A Harley;Ioannis Yannas;Lorna J Gibson

  • Influence of freezing rate on pore structure in freeze-dried collagen-GAG scaffolds.

    Fergal J. O’Brien;Brendan A. Harley;Ioannis V. Yannas;Lorna Gibson

  • Biomaterial based modulation of macrophage polarization: A review and suggested design principles

    Rukmani Sridharan;Rukmani Sridharan;Andrew R. Cameron;Andrew R. Cameron;Daniel J. Kelly;Cathal J. Kearney

  • Understanding the effect of mean pore size on cell activity in collagen-glycosaminoglycan scaffolds

    Ciara M Murphy;Fergal J O'Brien

  • The effect of pore size on permeability and cell attachment in collagen scaffolds for tissue engineering

    Fergal J. O'Brien;Brendan A. Harley;Mary A. Waller;Ioannis V. Yannas

  • Material stiffness influences the polarization state, function and migration mode of macrophages.

    Rukmani Sridharan;Brenton Cavanagh;Andrew R. Cameron;Andrew R. Cameron;Daniel J. Kelly;Daniel J. Kelly

  • Staphylococcal Osteomyelitis: Disease Progression, Treatment Challenges, and Future Directions

    Nicola Kavanagh;Emily J. Ryan;Amro Widaa;Gillian Sexton

  • Cell-scaffold interactions in the bone tissue engineering triad.

    Ciara M Murphy;Fergal J O'Brien;David G Little;Aaron Schindeler

  • Crosslinking and mechanical properties significantly influence cell attachment, proliferation, and migration within collagen glycosaminoglycan scaffolds.

    Matthew G. Haugh;Ciara M. Murphy;Ross C. McKiernan;Cornelia Altenbuchner

  • The effect of dehydrothermal treatment on the mechanical and structural properties of collagen- GAG scaffolds.

    Matthew G. Haugh;Michael J. Jaasma;Michael J. Jaasma;Fergal J. O'Brien;Fergal J. O'Brien

  • Mesenchymal stem cell fate is regulated by the composition and mechanical properties of collagen-glycosaminoglycan scaffolds.

    Ciara M. Murphy;Amos Matsiko;Amos Matsiko;Matthew G. Haugh;Matthew G. Haugh;John P. Gleeson;John P. Gleeson

  • ADDITION OF HYDROXYAPATITE IMPROVES STIFFNESS, INTERCONNECTIVITY AND OSTEOGENIC POTENTIAL OF A HIGHLY POROUS COLLAGEN-BASED SCAFFOLD FOR BONE TISSUE REGENERATION

    JP Gleeson;NA Plunkett;FJ O’Brien

  • A biomimetic multi-layered collagen-based scaffold for osteochondral repair.

    Tanya J. Levingstone;Amos Matsiko;Glenn R. Dickson;Fergal J. O’Brien

  • Novel Freeze-Drying Methods to Produce a Range of Collagen–Glycosaminoglycan Scaffolds with Tailored Mean Pore Sizes

    Matthew G. Haugh;Ciara M. Murphy;Fergal J. O'Brien

  • A Collagen-glycosaminoglycan Scaffold Supports Adult Rat Mesenchymal Stem Cell Differentiation Along Osteogenic and Chondrogenic Routes

    Eric Farrell;Fergal J. O'Brien;Fergal J. O'Brien;Paul Doyle;Jan Fischer

  • The effect of bone microstructure on the initiation and growth of microcracks.

    Fergal J. O'Brien;David Taylor;T. Clive Lee;T. Clive Lee

  • Scaffold mean pore size influences mesenchymal stem cell chondrogenic differentiation and matrix deposition.

    Amos Matsiko;John P. Gleeson;Fergal J. O'Brien

  • Bioreactors in tissue engineering

    Niamh Plunkett;Fergal J. O'Brien

Frequent Co-Authors

Daniel J. Kelly
Daniel J. Kelly Trinity College Dublin
Andreas Heise
Andreas Heise Royal College of Surgeons in Ireland
Patrick J. Prendergast
Patrick J. Prendergast Trinity College Dublin
Brendan A.C. Harley
Brendan A.C. Harley University of Illinois at Urbana-Champaign
Valeria Nicolosi
Valeria Nicolosi Trinity College Dublin
Harrie Weinans
Harrie Weinans Utrecht University
Raymond L. Stallings
Raymond L. Stallings Royal College of Surgeons in Ireland
Timothy O'Brien
Timothy O'Brien University of Minnesota
Timothy J. Foster
Timothy J. Foster Campden BRI (United Kingdom)

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