World's Best Scientists 2026 revealed!
James P. O'Gara

James P. O'Gara

D-Index & Metrics

Microbiology

D-Index
48
Citations
9535
World Ranking
4662
National Ranking
24

James P. O'Gara publication distribution in Microbiology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Microbiology in 2026. The highlighted bar marks where James P. O'Gara sits on this spectrum.

55–64 publications: 8 scientists 65–74 publications: 29 scientists 75–84 publications: 55 scientists 85–94 publications: 112 scientists 95–104 publications: 137 scientists 105–114 publications: 190 scientists 115–124 publications: 235 scientists 125–134 publications: 234 scientists 135–144 publications: 288 scientists 145–154 publications: 264 scientists 155–164 publications: 264 scientists 165–174 publications: 253 scientists 175–184 publications: 276 scientists 185–194 publications: 190 scientists 195–204 publications: 233 scientists 205–214 publications: 207 scientists 215–224 publications: 198 scientists 225–234 publications: 155 scientists 235–244 publications: 161 scientists 245–254 publications: 160 scientists 255–264 publications: 146 scientists 265–274 publications: 139 scientists 275–284 publications: 148 scientists 285–294 publications: 115 scientists 295–304 publications: 96 scientists 305–314 publications: 88 scientists 315–324 publications: 106 scientists 325–334 publications: 65 scientists 335–344 publications: 76 scientists 345–354 publications: 64 scientists 355–364 publications: 62 scientists 365–374 publications: 65 scientists 375–384 publications: 61 scientists 385–394 publications: 34 scientists 395–404 publications: 44 scientists 405–414 publications: 36 scientists 415–424 publications: 35 scientists 425–434 publications: 29 scientists 435–444 publications: 33 scientists 445–454 publications: 34 scientists 455–464 publications: 25 scientists 465–474 publications: 26 scientists 475–484 publications: 20 scientists 485–494 publications: 19 scientists 495–504 publications: 16 scientists 505–514 publications: 17 scientists 515–524 publications: 23 scientists 525–534 publications: 14 scientists 535–544 publications: 14 scientists 545–554 publications: 18 scientists 555–564 publications: 12 scientists 565–574 publications: 7 scientists 575–584 publications: 9 scientists 585–594 publications: 9 scientists 595–604 publications: 9 scientists 605–614 publications: 7 scientists 615–624 publications: 9 scientists 625–634 publications: 7 scientists 635–644 publications: 4 scientists 645–654 publications: 5 scientists 655–664 publications: 6 scientists 665–674 publications: 7 scientists 675–678 publications: 3 scientists 679+ publications: 99 scientists
55 publications 679+

This scientist: 93 publications — 3rd percentile

3% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 679 publications or more.

James P. O'Gara D-index placement in Microbiology in 2026

The chart shows the D-index (discipline H-index) distribution of Microbiology scientists ranked by Research.com in 2026. The highlighted bar marks where James P. O'Gara sits on this spectrum.

40 D-Index: 30 scientists 41 D-Index: 86 scientists 42 D-Index: 90 scientists 43 D-Index: 117 scientists 44 D-Index: 122 scientists 45 D-Index: 123 scientists 46 D-Index: 108 scientists 47 D-Index: 110 scientists 48 D-Index: 106 scientists 49 D-Index: 109 scientists 50 D-Index: 129 scientists 51 D-Index: 111 scientists 52 D-Index: 116 scientists 53 D-Index: 127 scientists 54 D-Index: 134 scientists 55 D-Index: 134 scientists 56 D-Index: 111 scientists 57 D-Index: 136 scientists 58 D-Index: 162 scientists 59 D-Index: 151 scientists 60 D-Index: 139 scientists 61 D-Index: 122 scientists 62 D-Index: 126 scientists 63 D-Index: 144 scientists 64 D-Index: 109 scientists 65 D-Index: 103 scientists 66 D-Index: 124 scientists 67 D-Index: 112 scientists 68 D-Index: 103 scientists 69 D-Index: 131 scientists 70 D-Index: 93 scientists 71 D-Index: 93 scientists 72 D-Index: 96 scientists 73 D-Index: 92 scientists 74 D-Index: 80 scientists 75 D-Index: 66 scientists 76 D-Index: 87 scientists 77 D-Index: 60 scientists 78 D-Index: 73 scientists 79 D-Index: 59 scientists 80 D-Index: 57 scientists 81 D-Index: 55 scientists 82 D-Index: 47 scientists 83 D-Index: 77 scientists 84 D-Index: 50 scientists 85 D-Index: 45 scientists 86 D-Index: 42 scientists 87 D-Index: 41 scientists 88 D-Index: 32 scientists 89 D-Index: 38 scientists 90 D-Index: 35 scientists 91 D-Index: 34 scientists 92 D-Index: 27 scientists 93 D-Index: 26 scientists 94 D-Index: 33 scientists 95 D-Index: 22 scientists 96 D-Index: 37 scientists 97 D-Index: 22 scientists 98 D-Index: 21 scientists 99 D-Index: 22 scientists 100 D-Index: 30 scientists 101 D-Index: 16 scientists 102 D-Index: 20 scientists 103 D-Index: 17 scientists 104 D-Index: 19 scientists 105 D-Index: 16 scientists 106 D-Index: 19 scientists 107 D-Index: 18 scientists 108 D-Index: 14 scientists 109 D-Index: 10 scientists 110 D-Index: 9 scientists 111 D-Index: 7 scientists 112 D-Index: 11 scientists 113 D-Index: 6 scientists 114 D-Index: 15 scientists 115 D-Index: 10 scientists 116 D-Index: 12 scientists 117 D-Index: 7 scientists 118 D-Index: 10 scientists 119 D-Index: 10 scientists 120 D-Index: 11 scientists 121 D-Index: 2 scientists 122 D-Index: 7 scientists 123 D-Index: 12 scientists 124 D-Index: 5 scientists 125 D-Index: 9 scientists 126 D-Index: 6 scientists 127+ D-Index: 95 scientists
40 D-Index 127+

This scientist: 48 D-Index — 16th percentile

16% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 127 D-Index or more.

Overview

James P. O'Gara is affiliated with the National University of Ireland, Galway, where their research focuses on infectious diseases, molecular biology, and molecular medicine, particularly in the context of antimicrobial resistance and bacterial biofilms.

Their work spans several main fields of study, including:

  • Medicine
  • Biochemistry, Genetics and Molecular Biology

Within these broader disciplines, their subfields of study include:

  • Infectious Diseases
  • Molecular Biology
  • Molecular Medicine
  • Microbiology
  • Rehabilitation

O'Gara's research centers around key topics such as:

  • Antimicrobial Resistance in Staphylococcus
  • Bacterial biofilms and quorum sensing
  • Antibiotic Resistance in Bacteria
  • Antimicrobial Peptides and Activities
  • Wound Healing and Treatments
  • Antifungal resistance and susceptibility
  • Pressure Ulcer Prevention and Management

Their frequent co-authors include:

  • Merve S. Zeden
  • Georgina Gethin
  • Vinai C. Thomas
  • Aaron C. Nolan
  • Laura A. Gallagher

They have published extensively in several venues, with multiple publications in:

  • bioRxiv (Cold Spring Harbor Laboratory)
  • mBio
  • PLoS Pathogens
  • International Journal of Nanomedicine
  • International Wound Journal

Recent papers by James P. O'Gara include:

  • Tailoring Nanoparticle-Biofilm Interactions to Increase the Efficacy of Antimicrobial Agents Against Staphylococcus aureus, 2020, International Journal of Nanomedicine
  • Enzyme-Functionalized Mesoporous Silica Nanoparticles to Target Staphylococcus aureus and Disperse Biofilms, 2021, International Journal of Nanomedicine
  • Purine Nucleosides Interfere with c-di-AMP Levels and Act as Adjuvants To Re-Sensitize MRSA To β-Lactam Antibiotics, 2022, mBio
  • Glycomics Microarrays Reveal Differential In Situ Presentation of the Biofilm Polysaccharide Poly-N-acetylglucosamine on Acinetobacter baumannii and Staphylococcus aureus Cell Surfaces, 2020, International Journal of Molecular Sciences
  • Accumulation of Succinyl Coenzyme A Perturbs the Methicillin-Resistant Staphylococcus aureus (MRSA) Succinylome and Is Associated with Increased Susceptibility to Beta-Lactam Antibiotics, 2021, mBio

Best Publications

  • ica and beyond: biofilm mechanisms and regulation in Staphylococcus epidermidis and Staphylococcus aureus

    James P. O'Gara

  • A Novel Staphylococcus aureus Biofilm Phenotype Mediated by the Fibronectin-Binding Proteins, FnBPA and FnBPB

    Eoghan O'Neill;Eoghan O'Neill;Clarissa Pozzi;Patrick Houston;Hilary Humphreys

  • Staphylococcus epidermidis biofilms: importance and implications.

    James P. O'gara;Hilary Humphreys

  • Association between Methicillin Susceptibility and Biofilm Regulation in Staphylococcus aureus Isolates from Device-Related Infections

    Eoghan O'Neill;Eoghan O'Neill;Clarissa Pozzi;Patrick Houston;Davida Smyth

  • Methicillin resistance and the biofilm phenotype in Staphylococcus aureus

    Hannah McCarthy;Justine K. Rudkin;Nikki S. Black;Laura Gallagher

  • icaR Encodes a Transcriptional Repressor Involved in Environmental Regulation of ica Operon Expression and Biofilm Formation in Staphylococcus epidermidis

    Kevin M. Conlon;Hilary Humphreys;James P. O'Gara

  • Methicillin Resistance Alters the Biofilm Phenotype and Attenuates Virulence in Staphylococcus aureus Device-Associated Infections

    Clarissa Pozzi;Elaine M. Waters;Justine K. Rudkin;Carolyn R. Schaeffer

  • Essential Role for the Major Autolysin in the Fibronectin-Binding Protein-Mediated Staphylococcus aureus Biofilm Phenotype

    Patrick Houston;Sarah E. Rowe;Clarissa Pozzi;Elaine M. Waters

  • Evidence for icaADBC-Independent Biofilm Development Mechanism in Methicillin-Resistant Staphylococcus aureus Clinical Isolates

    Fidelma Fitzpatrick;Hilary Humphreys;James P. O'Gara

  • Role of Surface Protein SasG in Biofilm Formation by Staphylococcus aureus

    Joan A. Geoghegan;Rebecca M. Corrigan;Dominika T. Gruszka;Pietro Speziale

  • The genetics of staphylococcal biofilm formation—will a greater understanding of pathogenesis lead to better management of device‐related infection?

    F. Fitzpatrick;H. Humphreys;H. Humphreys;J.P. O'Gara

  • Evaluation of Protein Adsorption on Atmospheric Plasma Deposited Coatings Exhibiting Superhydrophilic to Superhydrophobic Properties

    C. P. Stallard;K. A. McDonnell;O. D. Onayemi;J. P. O’Gara

  • Inactivations of rsbU and sarA by IS256 Represent Novel Mechanisms of Biofilm Phenotypic Variation in Staphylococcus epidermidis

    Kevin M. Conlon;Hilary Humphreys;James P. O'Gara

  • Convergence of Staphylococcus aureus Persister and Biofilm Research: Can Biofilms Be Defined as Communities of Adherent Persister Cells?

    Elaine M. Waters;Sarah E. Rowe;James P. O'Gara;Brian P. Conlon

  • Fibronectin-binding proteins are required for biofilm formation by community-associated methicillin-resistant Staphylococcus aureus strain LAC

    Jennifer McCourt;Dara P. O'Halloran;Hannah McCarthy;James P. O'Gara

  • Control of Photosystem Formation in Rhodobacter sphaeroides

    Jill Zeilstra-Ryalls;Mark Gomelsky;Jesus M. Eraso;Alexei Yeliseev

  • Methicillin Resistance Reduces the Virulence of Healthcare-Associated Methicillin-Resistant Staphylococcus aureus by Interfering With the agr Quorum Sensing System

    Justine K. Rudkin;Andrew M. Edwards;Maria G. Bowden;Eric L. Brown

  • Anti-biofilm activity of sub-inhibitory povidone-iodine concentrations against Staphylococcus epidermidis and Staphylococcus aureus.

    Kayode O. Oduwole;Aaron A. Glynn;Diarmuid C. Molony;David Murray

  • Untangling the Diverse and Redundant Mechanisms of Staphylococcus aureus Biofilm Formation.

    Marta Zapotoczna;Eoghan O’Neill;Eoghan O’Neill;James P. O'Gara

  • A Staphylococcal GGDEF Domain Protein Regulates Biofilm Formation Independently of Cyclic Dimeric GMP

    Linda M. Holland;Sinéad T. O'Donnell;Dmitri A. Ryjenkov;Larissa Gomelsky

Frequent Co-Authors

Hilary Humphreys
Hilary Humphreys Royal College of Surgeons in Ireland
Paul D. Fey
Paul D. Fey University of Nebraska Medical Center
Felipe Cava
Felipe Cava Umeå University
Aras Kadioglu
Aras Kadioglu University of Liverpool
Catherine M. Greene
Catherine M. Greene Royal College of Surgeons in Ireland
Joan A. Geoghegan
Joan A. Geoghegan University of Birmingham
Timothy J. Foster
Timothy J. Foster Campden BRI (United Kingdom)
Alex J. O'Neill
Alex J. O'Neill University of Leeds
Mark Gomelsky
Mark Gomelsky University of Wyoming
Samuel Kaplan
Samuel Kaplan The University of Texas Health Science Center at Houston

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Exploring microbiology can open doors to a variety of interdisciplinary career paths. For example, becoming a child life specialist salary professional involves a blend of biology, psychology, and healthcare knowledge. This path often requires specialized training but benefits from a strong foundation in biological sciences.

Access to education is also an important consideration. Many students worry about eligibility, but there are reputable online colleges that accept felons, making higher education in fields like microbiology more accessible to a broad range of learners with diverse backgrounds.

For those interested in healthcare with a holistic approach, becoming a functional medicine nurse offers a unique career avenue. This role often integrates microbiological knowledge with patient-centered therapies, highlighting the importance of biology in nursing specialties.

On the administrative side, careers such as medical coding require certifications like cpc certification. This pathway offers a stable career that complements clinical roles and emphasizes accurate healthcare documentation, often rooted in a scientific understanding of medical terms and procedures.

Best Scientists Citing James P. O'Gara

Trending Scientists

Recently Published Articles