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 04, 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 (870.057) 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
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: 2
Fluidization
Reactors
Heat & mass transfer
Modeling
Contaminants
Metrics
H-Index
i10 Index
Citation Counts
97
530
49,125
* Total H IndexRankings
Ranking Based On Selection: 3
Colloid and Interface Science
Intermolecular and Surface Forces
Polymers
Adhesion
Emulsions
Metrics
H-Index
i10 Index
Citation Counts
93
430
30,973
* Total H IndexRankings
Ranking Based On Selection: 4
polymers
colloids
sustainable nanomaterials
self-assembly systems
nanotechnology
Metrics
H-Index
i10 Index
Citation Counts
90
372
30,778
* Total H IndexRankings
Ranking Based On Selection: 5
Hydrogen Energy System
Zero-Emissions Vehicles
Electro-chemical Modelling
Hybrid Vehicles
Metrics
H-Index
i10 Index
Citation Counts
87
257
28,752
* Total H IndexRankings
Ranking Based On Selection: 6
membrane protein folding
quality control
cystic fibrosis
LQT2
chaperones
Metrics
H-Index
i10 Index
Citation Counts
73
137
19,276
* Total H IndexRankings
Ranking Based On Selection: 7
gas hydrates
clathrate hydrates
thermodynamics
co2 capture
chemical engineering
Metrics
H-Index
i10 Index
Citation Counts
72
163
18,782
* Total H IndexRankings
Ranking Based On Selection: 8
biomaterials
polymers
surface science
Metrics
H-Index
i10 Index
Citation Counts
72
231
17,342
* Total H IndexRankings
Ranking Based On Selection: 9
microplastics
bioadhesion
environmental nanotechnology
water treatment
antimicrobial
Metrics
H-Index
i10 Index
Citation Counts
69
165
23,356
* Total H IndexRankings
Ranking Based On Selection: 10
Cocrystals
Polymorphism
Crystallization
Zeolites
Metal Organic Frameworks
Metrics
H-Index
i10 Index
Citation Counts
69
313
18,563
* Total H IndexRankings
Ranking Based On Selection: 11
Multiphase reaction engineering
Metrics
H-Index
i10 Index
Citation Counts
69
332
18,682
* Total H IndexRankings
Ranking Based On Selection: 12
Bioelectrochemistry
Electrochemical Biosensors
Chemical Neuroscience
Metrics
H-Index
i10 Index
Citation Counts
67
183
14,873
* Total H IndexRankings
Ranking Based On Selection: 13
Minerals Processing
Colloids and Surfaces
Intermolecular and Surface Forces
Emulsion
Functional Materials
Metrics
H-Index
i10 Index
Citation Counts
66
235
14,655
* Total H IndexRankings
Ranking Based On Selection: 14
Rheology
Polymer Processing
Superhydrophobicity
Metrics
H-Index
i10 Index
Citation Counts
66
239
15,843
* Total H IndexRankings
Ranking Based On Selection: 15
Polymer Physics
Biopolymers
Polymer Morphology
Interfaces
Sustainable Plastics
Metrics
H-Index
i10 Index
Citation Counts
66
191
14,560
* Total H IndexRankings
Ranking Based On Selection: 16
Organic electronics
polymers
nanomaterials
transistors
solar cells
Metrics
H-Index
i10 Index
Citation Counts
65
216
18,445
* Total H IndexRankings
Ranking Based On Selection: 17
Process Systems Engineering
Energy Optimization
Environmental Systems
Process Engineering
Metrics
H-Index
i10 Index
Citation Counts
63
335
15,770
* Total H IndexRankings
Ranking Based On Selection: 18
Environmental engineering and microbiology
Metrics
H-Index
i10 Index
Citation Counts
63
157
14,264
* Total H IndexRankings
Ranking Based On Selection: 19
Chemical/Process Engineering
Energy and Environment
Transport Phenomena
Carbon Management
Metrics
H-Index
i10 Index
Citation Counts
61
212
12,356
* Total H IndexRankings
Ranking Based On Selection: 20
Catalysis and application in fuel upgrading
Biomass and biofuel
CO2 utilization
battery recycle
Metrics
H-Index
i10 Index
Citation Counts
61
177
13,896
* Total H IndexRankings
Ranking Based On Selection: 21
Polymer Science and Engineering
Glycopolymers
Biomaterials
Nanotechnology
Drug/Gene Delivery
Metrics
H-Index
i10 Index
Citation Counts
61
159
9,793
* Total H IndexRankings
Ranking Based On Selection: 22
Block Copolymers
Metrics
H-Index
i10 Index
Citation Counts
61
137
18,989
* Total H IndexRankings
Ranking Based On Selection: 23
Biomass Processing
Biomass Energy
Postharvest Technology
Drying
Densification
Metrics
H-Index
i10 Index
Citation Counts
59
175
17,269
* Total H IndexRankings
Ranking Based On Selection: 24
Reactor Engineering
Photoelectrocatalysis
Industrial Biotechnology
Metrics
H-Index
i10 Index
Citation Counts
58
189
11,265
* Total H IndexRankings
Ranking Based On Selection: 25
hydrogels
microgels
smart materials
drug delivery
tissue engineering
Metrics
H-Index
i10 Index
Citation Counts
58
120
17,366
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
John Grace
University of British Columbia
Vancouver, Canada
Metrics
H-Index
i10-Index
Citation Counts
97
530
49,125
Fluidization
Reactors
Heat & mass transfer
Modeling
Contaminants
Hongbo Zeng
University of Alberta
Edmonton, Canada
Metrics
H-Index
i10-Index
Citation Counts
93
430
30,973
Colloid and Interface Science
Intermolecular and Surface Forces
Polymers
Adhesion
Emulsions
Michael Kc Tam
University of Waterloo
Waterloo, Canada
Metrics
H-Index
i10-Index
Citation Counts
90
372
30,778
polymers
colloids
sustainable nanomaterials
self-assembly systems
nanotechnology
Michael Fowler
University of Waterloo
Waterloo, Canada
Metrics
H-Index
i10-Index
Citation Counts
87
257
28,752
Hydrogen Energy System
Zero-Emissions Vehicles
Electro-chemical Modelling
Hybrid Vehicles
Gergely L Lukacs
McGill University
Montréal, Canada
Metrics
H-Index
i10-Index
Citation Counts
73
137
19,276
membrane protein folding
quality control
cystic fibrosis
LQT2
chaperones
Peter Englezos
University of British Columbia
Vancouver, Canada
Metrics
H-Index
i10-Index
Citation Counts
72
163
18,782
gas hydrates
clathrate hydrates
thermodynamics
co2 capture
chemical engineering
John Brash
McMaster University
Hamilton, Canada
Metrics
H-Index
i10-Index
Citation Counts
72
231
17,342
biomaterials
polymers
surface science
Nathalie Tufenkji
McGill University
Montréal, Canada
Metrics
H-Index
i10-Index
Citation Counts
69
165
23,356
microplastics
bioadhesion
environmental nanotechnology
water treatment
antimicrobial
Sohrab Rohani
Western University Canada
London, Canada
Metrics
H-Index
i10-Index
Citation Counts
69
313
18,563
Cocrystals
Polymorphism
Crystallization
Zeolites
Metal Organic Frameworks
Faïçal Larachi
Université Laval
Québec, Canada
Metrics
H-Index
i10-Index
Citation Counts
69
332
18,682
Multiphase reaction engineering
Kagan Kerman
University of Toronto
Toronto, Canada
Metrics
H-Index
i10-Index
Citation Counts
67
183
14,873
Bioelectrochemistry
Electrochemical Biosensors
Chemical Neuroscience
Qingxia Chad Liu
University of Alberta
Edmonton, Canada
Metrics
H-Index
i10-Index
Citation Counts
66
235
14,655
Minerals Processing
Colloids and Surfaces
Intermolecular and Surface Forces
Emulsion
Functional Materials
Savvas Hatzikiriakos
University of British Columbia
Vancouver, Canada
Metrics
H-Index
i10-Index
Citation Counts
66
239
15,843
Rheology
Polymer Processing
Superhydrophobicity
Basil D Favis
École Polytechnique de Montréal
Montréal, Canada
Metrics
H-Index
i10-Index
Citation Counts
66
191
14,560
Polymer Physics
Biopolymers
Polymer Morphology
Interfaces
Sustainable Plastics
Yuning Li
University of Waterloo
Waterloo, Canada
Metrics
H-Index
i10-Index
Citation Counts
65
216
18,445
Organic electronics
polymers
nanomaterials
transistors
solar cells
Ali Elkamel
University of Waterloo
Waterloo, Canada
Metrics
H-Index
i10-Index
Citation Counts
63
335
15,770
Process Systems Engineering
Energy Optimization
Environmental Systems
Process Engineering
Elizabeth A Edwards
University of Toronto
Toronto, Canada
Metrics
H-Index
i10-Index
Citation Counts
63
157
14,264
Environmental engineering and microbiology
Sohrab Zendehboudi
Memorial University of Newfoundland
St John’s, Canada
Metrics
H-Index
i10-Index
Citation Counts
61
212
12,356
Chemical/Process Engineering
Energy and Environment
Transport Phenomena
Carbon Management
Ying Zheng
Western University Canada
London, Canada
Metrics
H-Index
i10-Index
Citation Counts
61
177
13,896
Catalysis and application in fuel upgrading
Biomass and biofuel
CO2 utilization
battery recycle
Ravin Narain
University of Alberta
Edmonton, Canada
Metrics
H-Index
i10-Index
Citation Counts
61
159
9,793
Polymer Science and Engineering
Glycopolymers
Biomaterials
Nanotechnology
Drug/Gene Delivery
Mark W Matsen
University of Waterloo
Waterloo, Canada
Metrics
H-Index
i10-Index
Citation Counts
61
137
18,989
Lope G Tabil
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
59
175
17,269
Biomass Processing
Biomass Energy
Postharvest Technology
Drying
Densification
Jason Zhang
Université d'Ottawa
Ottawa, Canada
Metrics
H-Index
i10-Index
Citation Counts
58
189
11,265
Reactor Engineering
Photoelectrocatalysis
Industrial Biotechnology
Todd Hoare
McMaster University
Hamilton, Canada
Metrics
H-Index
i10-Index
Citation Counts
58
120
17,366
hydrogels
microgels
smart materials
drug delivery
tissue engineering