World Scientist and University Rankings 2025
World Engineering & Technology 428.559 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Jan 21, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (873.696) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 1
drug delivery
tissue engineering
biomaterials
nanotechnology
chemistry
Metrics
H-Index
i10 Index
Citation Counts
328
1,898
441,116
* Total H IndexRankings
Ranking Based On Selection: 2
nanogenerator
self-powered sensors/systems
blue energy
piezotronics
piezo-phototronics
Metrics
H-Index
i10 Index
Citation Counts
326
2,468
469,134
* Total H IndexRankings
Ranking Based On Selection: 3
Solar energy conversion
Metrics
H-Index
i10 Index
Citation Counts
311
1,549
502,880
* Total H IndexRankings
Ranking Based On Selection: 4
nanotechnology
energy
environment
2D materials
nanobio
Metrics
H-Index
i10 Index
Citation Counts
282
831
317,192
* Total H IndexRankings
Ranking Based On Selection: 5
microbial diversity
microbiome
environmental microbiology
Metrics
H-Index
i10 Index
Citation Counts
253
828
445,219
* Total H IndexRankings
Ranking Based On Selection: 6
Nanomaterials
Biomedicine
Imaging
Energy
Catalysis
Metrics
H-Index
i10 Index
Citation Counts
253
860
269,149
* Total H IndexRankings
Ranking Based On Selection: 7
Carbon
nanomaterials
energy storage
supercapacitors
MXene
Metrics
H-Index
i10 Index
Citation Counts
243
909
292,452
* Total H IndexRankings
Ranking Based On Selection: 8
Software Engineering
Computational Biology
HPC
Physics
Metrics
H-Index
i10 Index
Citation Counts
241
1,418
312,105
* Total H IndexRankings
Ranking Based On Selection: 9
Machine learning
deep learning
artificial intelligence
Metrics
H-Index
i10 Index
Citation Counts
240
900
886,721
* Total H IndexRankings
Ranking Based On Selection: 10
biomedical engineering
materials
medicine
mechanical engineering
electrical engineering
Metrics
H-Index
i10 Index
Citation Counts
233
1,128
215,652
Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast!
* Total H IndexRankings
Ranking Based On Selection: 11
Materials Science
Nanotechnology
Chemistry
Physics
Metrics
H-Index
i10 Index
Citation Counts
232
1,135
228,149
* Total H IndexRankings
Ranking Based On Selection: 12
Metrics
H-Index
i10 Index
Citation Counts
230
659
260,763
* Total H IndexRankings
Ranking Based On Selection: 13
hollow structures
batteries
electrocatalysis
supercapacitors
photocatalysis
Metrics
H-Index
i10 Index
Citation Counts
227
397
145,955
* Total H IndexRankings
Ranking Based On Selection: 14
Metrics
H-Index
i10 Index
Citation Counts
226
767
186,765
* Total H IndexRankings
Ranking Based On Selection: 15
Electronics
Metrics
H-Index
i10 Index
Citation Counts
223
915
250,272
* Total H IndexRankings
Ranking Based On Selection: 16
Statistics
Machine Learning
Renewable Energy
Building Physics
Particle Physics
Metrics
H-Index
i10 Index
Citation Counts
223
719
208,476
* Total H IndexRankings
Ranking Based On Selection: 17
medical imaging
machine learning
computer vision
and graphics
Metrics
H-Index
i10 Index
Citation Counts
221
916
193,831
* Total H IndexRankings
Ranking Based On Selection: 18
Biometrics
Computer vision
Pattern recognition
Machine learning
Image processing
Metrics
H-Index
i10 Index
Citation Counts
220
831
276,241
* Total H IndexRankings
Ranking Based On Selection: 19
Materials Science
Metrics
H-Index
i10 Index
Citation Counts
219
1,464
216,298
* Total H IndexRankings
Ranking Based On Selection: 20
High energy physics
Astroparticle physics
Instrumentation
Metrics
H-Index
i10 Index
Citation Counts
217
944
237,301
* Total H IndexRankings
Ranking Based On Selection: 21
biomaterials
drug delivery
chemical engineering
hydrogels
biomedical engineering
Metrics
H-Index
i10 Index
Citation Counts
217
1,168
225,901
* Total H IndexRankings
Ranking Based On Selection: 22
machine learning
computer science
statistics
artificial intelligence
optimization
Metrics
H-Index
i10 Index
Citation Counts
212
773
314,512
* Total H IndexRankings
Ranking Based On Selection: 23
biomaterials
tissue engineering
silk
regenerative medicine
Metrics
H-Index
i10 Index
Citation Counts
212
1,546
202,797
* Total H IndexRankings
Ranking Based On Selection: 24
biosensors
electrochemistry
nanomotors
modified electrodes
microfabrication
Metrics
H-Index
i10 Index
Citation Counts
211
1,195
175,248
* Total H IndexRankings
Ranking Based On Selection: 25
electronics for high energy physics
rad-hard electronics
Metrics
H-Index
i10 Index
Citation Counts
209
1,097
216,075
Robert Langer
Metrics
H-Index
i10-Index
Citation Counts
328
1,898
441,116
drug delivery
tissue engineering
biomaterials
nanotechnology
chemistry
Zhong Lin Wang
Metrics
H-Index
i10-Index
Citation Counts
326
2,468
469,134
nanogenerator
self-powered sensors/systems
blue energy
piezotronics
piezo-phototronics
Michael Graetzel
Metrics
H-Index
i10-Index
Citation Counts
311
1,549
502,880
Yi Cui
Stanford University
Stanford, United States
Metrics
H-Index
i10-Index
Citation Counts
282
831
317,192
nanotechnology
energy
environment
2D materials
nanobio
Rob Knight
University of California San Diego
San Diego, United States
Metrics
H-Index
i10-Index
Citation Counts
253
828
445,219
microbial diversity
microbiome
environmental microbiology
Younan Xia
Metrics
H-Index
i10-Index
Citation Counts
253
860
269,149
Nanomaterials
Biomedicine
Imaging
Energy
Catalysis
Yury Gogotsi
Drexel University
Philadelphia, United States
Metrics
H-Index
i10-Index
Citation Counts
243
909
292,452
Carbon
nanomaterials
energy storage
supercapacitors
MXene
Thomas Doherty
University of Strathclyde
Glasgow, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
241
1,418
312,105
Software Engineering
Computational Biology
HPC
Physics
Yoshua Bengio
Université de Montréal
Montréal, Canada
Metrics
H-Index
i10-Index
Citation Counts
240
900
886,721
Machine learning
deep learning
artificial intelligence
John A Rogers
Northwestern University
Evanston, United States
Metrics
H-Index
i10-Index
Citation Counts
233
1,128
215,652
biomedical engineering
materials
medicine
mechanical engineering
electrical engineering
Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast!
Ajayan PM
Rice University
Houston, United States
Metrics
H-Index
i10-Index
Citation Counts
232
1,135
228,149
Materials Science
Nanotechnology
Chemistry
Physics
Jens Norskov
Technical University of Denmark
Kongens Lyngby, Denmark
Metrics
H-Index
i10-Index
Citation Counts
230
659
260,763
Xiong Wen David Lou
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
227
397
145,955
hollow structures
batteries
electrocatalysis
supercapacitors
photocatalysis
Zhenan Bao
Stanford University
Stanford, United States
Metrics
H-Index
i10-Index
Citation Counts
226
767
186,765
Mauro Citterio
Metrics
H-Index
i10-Index
Citation Counts
223
915
250,272
Roberto Castello
Metrics
H-Index
i10-Index
Citation Counts
223
719
208,476
Statistics
Machine Learning
Renewable Energy
Building Physics
Particle Physics
medical imaging
machine learning
computer vision
and graphics
Anil K Jain
Michigan State University
East Lansing, United States
Metrics
H-Index
i10-Index
Citation Counts
220
831
276,241
Biometrics
Computer vision
Pattern recognition
Machine learning
Image processing
Kenji Watanabe
Metrics
H-Index
i10-Index
Citation Counts
219
1,464
216,298
Ivica Puljak
University of Split
Split, Croatia
Metrics
H-Index
i10-Index
Citation Counts
217
944
237,301
High energy physics
Astroparticle physics
Instrumentation
Nicholas A Peppas
Metrics
H-Index
i10-Index
Citation Counts
217
1,168
225,901
biomaterials
drug delivery
chemical engineering
hydrogels
biomedical engineering
Michael I Jordan
Metrics
H-Index
i10-Index
Citation Counts
212
773
314,512
machine learning
computer science
statistics
artificial intelligence
optimization
David L Kaplan
Tufts University
Medford, United States
Metrics
H-Index
i10-Index
Citation Counts
212
1,546
202,797
biomaterials
tissue engineering
silk
regenerative medicine
Joseph Wang
University of California San Diego
San Diego, United States
Metrics
H-Index
i10-Index
Citation Counts
211
1,195
175,248
biosensors
electrochemistry
nanomotors
modified electrodes
microfabrication
Alberto Stabile
Metrics
H-Index
i10-Index
Citation Counts
209
1,097
216,075
electronics for high energy physics
rad-hard electronics