World Scientist and University Rankings 2025
World Engineering & Technology 12.309 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 Feb 01, 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 (870.053) 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
Nanomaterials
Biomedicine
Imaging
Energy
Catalysis
Metrics
H-Index
i10 Index
Citation Counts
253
860
269,149
* Total H IndexRankings
Ranking Based On Selection: 2
Metrics
H-Index
i10 Index
Citation Counts
230
659
260,763
* Total H IndexRankings
Ranking Based On Selection: 3
Metrics
H-Index
i10 Index
Citation Counts
226
767
186,765
* Total H IndexRankings
Ranking Based On Selection: 4
Electrocatalysis
photocatalysis
energy conversion and storage
RNA delivery
Metrics
H-Index
i10 Index
Citation Counts
192
520
139,880
* Total H IndexRankings
Ranking Based On Selection: 5
Continuous Oral Drug Delivery
Continuous Electrochemical Glucose Monitoring for Diabetes Management
Metrics
H-Index
i10 Index
Citation Counts
191
548
151,917
* Total H IndexRankings
Ranking Based On Selection: 6
Catalysis
Adsorption
Photocatalysis
Nanomaterials
Chemical Engineering
Metrics
H-Index
i10 Index
Citation Counts
176
735
104,666
* Total H IndexRankings
Ranking Based On Selection: 7
surface forces
Metrics
H-Index
i10 Index
Citation Counts
153
473
138,449
* Total H IndexRankings
Ranking Based On Selection: 8
Metabolic engineering
synthetic biology
biochemical engineering
bioprocess engineering
Metrics
H-Index
i10 Index
Citation Counts
151
687
84,045
* Total H IndexRankings
Ranking Based On Selection: 9
biocatalysis
enzyme technology
protein engineering
synthetic biology
directed evolution
Metrics
H-Index
i10 Index
Citation Counts
150
434
78,489
* Total H IndexRankings
Ranking Based On Selection: 10
adhesion
carbon fibers
graphene
graphite nanoplatelets
composites
Metrics
H-Index
i10 Index
Citation Counts
141
806
92,349
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* Total H IndexRankings
Ranking Based On Selection: 11
Microsystems for chemistry and biology
continuos synthesis
nanomaterials
Metrics
H-Index
i10 Index
Citation Counts
140
573
79,365
* Total H IndexRankings
Ranking Based On Selection: 12
Chemical Engineering
Biomedical Engineering
Materials
Biomaterials
Hydrogels
Metrics
H-Index
i10 Index
Citation Counts
140
405
71,172
* Total H IndexRankings
Ranking Based On Selection: 13
Metabolic Engineering
Synthetic Biology
Metrics
H-Index
i10 Index
Citation Counts
138
559
78,121
* Total H IndexRankings
Ranking Based On Selection: 14
polymers
chemistry
physics
chemical engineering
materials science
Metrics
H-Index
i10 Index
Citation Counts
138
520
80,301
* Total H IndexRankings
Ranking Based On Selection: 15
Reactor Design
Adsorption
Metrics
H-Index
i10 Index
Citation Counts
133
333
71,768
* Total H IndexRankings
Ranking Based On Selection: 16
Theoretical chemistry
quantum information science
Physical Chemistry
Energy Materials
Machine Learning
Metrics
H-Index
i10 Index
Citation Counts
131
449
89,700
* Total H IndexRankings
Ranking Based On Selection: 17
Wireless Communication
IoT/Cyber-Physical Systems
Connected and autonomous vehicles
Electric
Metrics
H-Index
i10 Index
Citation Counts
130
743
62,378
* Total H IndexRankings
Ranking Based On Selection: 18
Electrochemistry
Catalysis/Electrocatalysis
Hydrogen Fuel Cells
Electrolyzers
Ammonia Energy
Metrics
H-Index
i10 Index
Citation Counts
130
333
58,475
* Total H IndexRankings
Ranking Based On Selection: 19
Metrics
H-Index
i10 Index
Citation Counts
130
450
65,916
* Total H IndexRankings
Ranking Based On Selection: 20
separations
membranes
sorbents
hollow fibers
Metrics
H-Index
i10 Index
Citation Counts
130
503
62,159
* Total H IndexRankings
Ranking Based On Selection: 21
catalysis
Metrics
H-Index
i10 Index
Citation Counts
130
366
49,922
* Total H IndexRankings
Ranking Based On Selection: 22
Chemical Engineering
Aerosols
Combustion
Sensors
Particle Technology
Metrics
H-Index
i10 Index
Citation Counts
129
455
51,472
* Total H IndexRankings
Ranking Based On Selection: 23
aggregation-induced-emission
conjugated polymer
conjugated polyelectrolyte
sensing and imaging
cancer therapy
Metrics
H-Index
i10 Index
Citation Counts
127
528
63,038
* Total H IndexRankings
Ranking Based On Selection: 24
Perovskite Solar Cell
Qunatun Dot Solar Cell
Dye-Sensitized Solar Cell
Metrics
H-Index
i10 Index
Citation Counts
126
369
84,151
* Total H IndexRankings
Ranking Based On Selection: 25
Chemical Engineering Catalysis Energy&Environmental
Metrics
H-Index
i10 Index
Citation Counts
125
354
49,230
Younan Xia
Metrics
H-Index
i10-Index
Citation Counts
253
860
269,149
Nanomaterials
Biomedicine
Imaging
Energy
Catalysis
Jens Norskov
Technical University of Denmark
Kongens Lyngby, Denmark
Metrics
H-Index
i10-Index
Citation Counts
230
659
260,763
Zhenan Bao
Stanford University
Stanford, United States
Metrics
H-Index
i10-Index
Citation Counts
226
767
186,765
Shi Zhang Qiao
University of Adelaide
Adelaide, Australia
Metrics
H-Index
i10-Index
Citation Counts
192
520
139,880
Electrocatalysis
photocatalysis
energy conversion and storage
RNA delivery
Adam Heller
Metrics
H-Index
i10-Index
Citation Counts
191
548
151,917
Continuous Oral Drug Delivery
Continuous Electrochemical Glucose Monitoring for Diabetes Management
Shaobin Wang
University of Adelaide
Adelaide, Australia
Metrics
H-Index
i10-Index
Citation Counts
176
735
104,666
Catalysis
Adsorption
Photocatalysis
Nanomaterials
Chemical Engineering
Jacob Israelachvili
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
153
473
138,449
Sang Yup Lee
Metrics
H-Index
i10-Index
Citation Counts
151
687
84,045
Metabolic engineering
synthetic biology
biochemical engineering
bioprocess engineering
Frances Arnold
Metrics
H-Index
i10-Index
Citation Counts
150
434
78,489
biocatalysis
enzyme technology
protein engineering
synthetic biology
directed evolution
LT Drzal
Michigan State University
East Lansing, United States
Metrics
H-Index
i10-Index
Citation Counts
141
806
92,349
adhesion
carbon fibers
graphene
graphite nanoplatelets
composites
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!
Klavs F Jensen
Metrics
H-Index
i10-Index
Citation Counts
140
573
79,365
Microsystems for chemistry and biology
continuos synthesis
nanomaterials
Anseth Kristi
Metrics
H-Index
i10-Index
Citation Counts
140
405
71,172
Chemical Engineering
Biomedical Engineering
Materials
Biomaterials
Hydrogels
Jay Keasling
Metrics
H-Index
i10-Index
Citation Counts
138
559
78,121
Metabolic Engineering
Synthetic Biology
Frank S Bates
University of Minnesota Twin Cities
Minneapolis, United States
Metrics
H-Index
i10-Index
Citation Counts
138
520
80,301
polymers
chemistry
physics
chemical engineering
materials science
Bassim H Hameed
Qatar University
Doha, Qatar
Metrics
H-Index
i10-Index
Citation Counts
133
333
71,768
Reactor Design
Adsorption
Alan Aspuru Guzik
University of Toronto
Toronto, Canada
Metrics
H-Index
i10-Index
Citation Counts
131
449
89,700
Theoretical chemistry
quantum information science
Physical Chemistry
Energy Materials
Machine Learning
Neeraj Kumar
Metrics
H-Index
i10-Index
Citation Counts
130
743
62,378
Wireless Communication
IoT/Cyber-Physical Systems
Connected and autonomous vehicles
Electric
Gang Wu
University at Buffalo
Buffalo, United States
Metrics
H-Index
i10-Index
Citation Counts
130
333
58,475
Electrochemistry
Catalysis/Electrocatalysis
Hydrogen Fuel Cells
Electrolyzers
Ammonia Energy
Jonathan Gershenzon
Metrics
H-Index
i10-Index
Citation Counts
130
450
65,916
William Koros
Metrics
H-Index
i10-Index
Citation Counts
130
503
62,159
separations
membranes
sorbents
hollow fibers
Israel E Wachs
Lehigh University
Bethlehem, United States
Metrics
H-Index
i10-Index
Citation Counts
130
366
49,922
Sotiris E Pratsinis
Metrics
H-Index
i10-Index
Citation Counts
129
455
51,472
Chemical Engineering
Aerosols
Combustion
Sensors
Particle Technology
Bin Liu
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
127
528
63,038
aggregation-induced-emission
conjugated polymer
conjugated polyelectrolyte
sensing and imaging
cancer therapy
Nam Gyu Park
Metrics
H-Index
i10-Index
Citation Counts
126
369
84,151
Perovskite Solar Cell
Qunatun Dot Solar Cell
Dye-Sensitized Solar Cell
Enrique Iglesia
Metrics
H-Index
i10-Index
Citation Counts
125
354
49,230
Chemical Engineering Catalysis Energy&Environmental