The Citation Rankings (Highly Cited Researchers) list highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Microbiology
microbiome
bacteriophage
bacteriocins
infection
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99,883
45,328
0.454
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,055
33,707
0.571
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Microbiome
lactobacillus
IBS
colorectal cancer
ageing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,215
31,341
0.568
* Total Citation Counts Rankings
Ranking Based On Selection: 4
microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,774
12,302
0.269
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Microbiology
Genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,569
5,691
0.343
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Interests: bacterial gene regulation
DNA topology
nucleoid-associated proteins
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,419
3,394
0.235
* Total Citation Counts Rankings
Ranking Based On Selection: 7
yeast
fungi
biotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,357
4,584
0.371
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Medical Microbiology
Hospital acquired infection
Infection prevention and control
intestinal anatomy and microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,920
4,778
0.438
* Total Citation Counts Rankings
Ranking Based On Selection: 9
microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,767
4,979
0.462
* Total Citation Counts Rankings
Ranking Based On Selection: 10
microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,388
3,104
0.299
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Anaerobic digestion
bioeconomy
methanogenesis
fermentation
agriculture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,062
3,711
0.369
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Infection
Immunity
Inflammation
Microbiota
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,785
5,772
0.590
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Microbiology
Microbial ecology
Microbial physiology
Biofilmology
Environmental Biotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,410
4,422
0.526
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Microbiology
stress responses
sigma factors
gene regulation
Listeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,188
2,548
0.412
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Research Expertise: Ralstonia pickettii and biofilms
rapid microbial detection methods and sensors.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,148
2,533
0.412
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Clinical Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,836
2,042
0.350
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,633
1,559
0.277
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Microbiology
Infection control
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,091
1,850
0.363
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Organofluorine
microbiology
biocatalysis
biofilms
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,689
1,579
0.428
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,497
926
0.265
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,252
1,565
0.481
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Plant-microbe interaction
mycorrhiza
biochar
phosphorus & sulfur mobilizing microbes
Listeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,985
1,260
0.422
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Microbiology
Bioinformatics
Integrating Conjugative Elements
Antimicrobial Resistance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,884
1,951
0.676
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Nucleic Acid Diagnostics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,871
551
0.192
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,389
623
0.261
Colin Hill
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99,883
45,328
0.454
Microbiology
microbiome
bacteriophage
bacteriocins
infection
Paul Cotter
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,055
33,707
0.571
Paul O Toole
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,215
31,341
0.568
Microbiome
lactobacillus
IBS
colorectal cancer
ageing
Timothy Foster J
Trinity College Dublin
Dublin, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,774
12,302
0.269
Dobson Alan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,569
5,691
0.343
Charles J Dorman
Trinity College Dublin
Dublin, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,419
3,394
0.235
Interests: bacterial gene regulation
DNA topology
nucleoid-associated proteins
John Morrissey
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,357
4,584
0.371
Colum Dunne
University of Limerick
Limerick, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,920
4,778
0.438
Medical Microbiology
Hospital acquired infection
Infection prevention and control
intestinal anatomy and microbiology
Mary C.Rea
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,767
4,979
0.462
David N Dowling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,388
3,104
0.299
Vincent O Flaherty
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,062
3,711
0.369
Anaerobic digestion
bioeconomy
methanogenesis
fermentation
agriculture
Sinéad C Corr
Trinity College Dublin
Dublin, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,785
5,772
0.590
Infection
Immunity
Inflammation
Microbiota
Gavin Collins
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,410
4,422
0.526
Microbiology
Microbial ecology
Microbial physiology
Biofilmology
Environmental Biotechnology
Conor P O Byrne|Conor O'Byrne
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,188
2,548
0.412
Microbiology
stress responses
sigma factors
gene regulation
Listeria
Catherine Adley
University of Limerick
Limerick, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,148
2,533
0.412
Research Expertise: Ralstonia pickettii and biofilms
rapid microbial detection methods and sensors.
Smith SG
Trinity College Dublin
Dublin, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,836
2,042
0.350
Clinical Microbiology
Gary Moran
Trinity College Dublin
Dublin, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,633
1,559
0.277
Anna C Shore
Trinity College Dublin
Dublin, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,091
1,850
0.363
Microbiology
Infection control
Cormac D Murphy
University College Dublin
Dublin, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,689
1,579
0.428
Organofluorine
microbiology
biocatalysis
biofilms
Marguerite Clyne
University College Dublin
Dublin, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,497
926
0.265
Johannes Wagener
Trinity College Dublin
Dublin, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,252
1,565
0.481
Achim Schmalenberger
University of Limerick
Limerick, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,985
1,260
0.422
Plant-microbe interaction
mycorrhiza
biochar
phosphorus & sulfur mobilizing microbes
Listeria
Michael P Ryan
Limerick Institute of Technology
Limerick, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,884
1,951
0.676
Microbiology
Bioinformatics
Integrating Conjugative Elements
Antimicrobial Resistance
Thomas Gerard Barry|Tom Barry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,871
551
0.192
Orla Sherlock
Dundalk Institute of Technology
Dundalk, Ireland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,389
623
0.261