Scientist and University Rankings 2025
North America 2.708 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 03, 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
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: 2
nanotechnology
energy
environment
2D materials
nanobio
Metrics
H-Index
i10 Index
Citation Counts
282
831
317,192
* Total H IndexRankings
Ranking Based On Selection: 3
Carbon
nanomaterials
energy storage
supercapacitors
MXene
Metrics
H-Index
i10 Index
Citation Counts
243
909
292,452
* Total H IndexRankings
Ranking Based On Selection: 4
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: 5
Batteries
Fuel Cell
Carbon material
Fluorine material
Nanotechnology
Metrics
H-Index
i10 Index
Citation Counts
178
759
110,391
* Total H IndexRankings
Ranking Based On Selection: 6
nanomaterials
energy technologies
manufacturing
Metrics
H-Index
i10 Index
Citation Counts
173
484
116,104
* Total H IndexRankings
Ranking Based On Selection: 7
synthetic biology
antibiotics
biological physics
bionanotechnology
Metrics
H-Index
i10 Index
Citation Counts
173
366
135,979
* Total H IndexRankings
Ranking Based On Selection: 8
copolymers
nanoparticles
wrinkling
photovoltaics
thin films
Metrics
H-Index
i10 Index
Citation Counts
172
919
118,810
* Total H IndexRankings
Ranking Based On Selection: 9
Nanotechnology
Plasmonics
Nanophotonics
Metrics
H-Index
i10 Index
Citation Counts
169
404
131,647
* Total H IndexRankings
Ranking Based On Selection: 10
Nanoscience and nanotechnology
Metrics
H-Index
i10 Index
Citation Counts
157
409
113,419
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* Total H IndexRankings
Ranking Based On Selection: 11
biosensors
bioengineering
Chemistry
Nanotechnology
Energy
Metrics
H-Index
i10 Index
Citation Counts
157
563
91,496
* Total H IndexRankings
Ranking Based On Selection: 12
Nanogeoscience
Microbial Ecology
Geomicrobiology
Metagenomics
Mineralogy
Metrics
H-Index
i10 Index
Citation Counts
157
471
96,420
* Total H IndexRankings
Ranking Based On Selection: 13
Nanomaterials
Self-Assembly
Metrics
H-Index
i10 Index
Citation Counts
152
469
85,638
* Total H IndexRankings
Ranking Based On Selection: 14
nanoscience
nanotechnology
nanomedicine
nanocatalysis
nanosensors
Metrics
H-Index
i10 Index
Citation Counts
147
674
161,394
* Total H IndexRankings
Ranking Based On Selection: 15
Biomimetics
nanotribology
nanomaterials
bio/nanotechnology
magnetic storage devices
Metrics
H-Index
i10 Index
Citation Counts
146
980
110,829
* Total H IndexRankings
Ranking Based On Selection: 16
Nanomaterial
Catalysis
Hydrogen Technology
Microbiome
2D Materials
Metrics
H-Index
i10 Index
Citation Counts
144
392
95,750
* Total H IndexRankings
Ranking Based On Selection: 17
Nanomaterials
fuel cells
batteries
electrolysis
artificial intelligence
Metrics
H-Index
i10 Index
Citation Counts
140
580
75,694
* Total H IndexRankings
Ranking Based On Selection: 18
graphene - carbon nanotubes - nanomaterials - electronic and magnetic properties - superconducting
Metrics
H-Index
i10 Index
Citation Counts
140
473
80,208
* Total H IndexRankings
Ranking Based On Selection: 19
Nanomaterials
Nanomechanics
Biomaterials
Metrics
H-Index
i10 Index
Citation Counts
133
651
72,253
* Total H IndexRankings
Ranking Based On Selection: 20
Nanomedicine
Biomaterials
Drug Delivery
Countermeasure
Vaccine
Metrics
H-Index
i10 Index
Citation Counts
130
284
59,788
* Total H IndexRankings
Ranking Based On Selection: 21
Nanomedicine
Drug Delivery
Nanotoxicology
NanoSafety
Immunotherapy
Metrics
H-Index
i10 Index
Citation Counts
122
290
79,969
* Total H IndexRankings
Ranking Based On Selection: 22
nanotechnology
plant nanobionics
thermal properties
nanopore transport
molecular recognition
Metrics
H-Index
i10 Index
Citation Counts
117
391
90,240
* Total H IndexRankings
Ranking Based On Selection: 23
Quantum Dots
SERS
Nanomedicine
Image-Guided and Robotic Surgery
Immuotherapy
Metrics
H-Index
i10 Index
Citation Counts
111
239
99,335
* Total H IndexRankings
Ranking Based On Selection: 24
nanomaterials
renewable energy
solid state chemistry
spintronics
nanobiotechnology
Metrics
H-Index
i10 Index
Citation Counts
107
262
50,524
* Total H IndexRankings
Ranking Based On Selection: 25
Surface and Interface Chemistry
Energy Storage
Electrocatalysis and Photocatalysis
Environmental Impacts of Nanotechnology
Metrics
H-Index
i10 Index
Citation Counts
107
371
41,197
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
Yi Cui
Stanford University
Stanford, United States
Metrics
H-Index
i10-Index
Citation Counts
282
831
317,192
nanotechnology
energy
environment
2D materials
nanobio
Yury Gogotsi
Drexel University
Philadelphia, United States
Metrics
H-Index
i10-Index
Citation Counts
243
909
292,452
Carbon
nanomaterials
energy storage
supercapacitors
MXene
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
Khalil Amine
Metrics
H-Index
i10-Index
Citation Counts
178
759
110,391
Batteries
Fuel Cell
Carbon material
Fluorine material
Nanotechnology
Liangbing Hu
University of Maryland
College Park, United States
Metrics
H-Index
i10-Index
Citation Counts
173
484
116,104
nanomaterials
energy technologies
manufacturing
James J Collins
Metrics
H-Index
i10-Index
Citation Counts
173
366
135,979
synthetic biology
antibiotics
biological physics
bionanotechnology
Russell TP
Metrics
H-Index
i10-Index
Citation Counts
172
919
118,810
copolymers
nanoparticles
wrinkling
photovoltaics
thin films
NJ Halas
Rice University
Houston, United States
Metrics
H-Index
i10-Index
Citation Counts
169
404
131,647
Nanotechnology
Plasmonics
Nanophotonics
Xiangfeng Duan
University of California Los Angeles
Los Angeles, United States
Metrics
H-Index
i10-Index
Citation Counts
157
409
113,419
Nanoscience and nanotechnology
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Yuehe Lin
Metrics
H-Index
i10-Index
Citation Counts
157
563
91,496
biosensors
bioengineering
Chemistry
Nanotechnology
Energy
Jillian Banfield
Metrics
H-Index
i10-Index
Citation Counts
157
471
96,420
Nanogeoscience
Microbial Ecology
Geomicrobiology
Metagenomics
Mineralogy
Nicholas A Kotov
University of Michigan
Ann Arbor, United States
Metrics
H-Index
i10-Index
Citation Counts
152
469
85,638
Nanomaterials
Self-Assembly
Mostafa A El Sayed
Metrics
H-Index
i10-Index
Citation Counts
147
674
161,394
nanoscience
nanotechnology
nanomedicine
nanocatalysis
nanosensors
Bharat Bhushan
Ohio State University
Columbus, United States
Metrics
H-Index
i10-Index
Citation Counts
146
980
110,829
Biomimetics
nanotribology
nanomaterials
bio/nanotechnology
magnetic storage devices
Yu Huang
University of California Los Angeles
Los Angeles, United States
Metrics
H-Index
i10-Index
Citation Counts
144
392
95,750
Nanomaterial
Catalysis
Hydrogen Technology
Microbiome
2D Materials
Zhongwei Chen
University of Waterloo
Waterloo, Canada
Metrics
H-Index
i10-Index
Citation Counts
140
580
75,694
Nanomaterials
fuel cells
batteries
electrolysis
artificial intelligence
Robert C Haddon
University of California Riverside
Riverside, United States
Metrics
H-Index
i10-Index
Citation Counts
140
473
80,208
graphene - carbon nanotubes - nanomaterials - electronic and magnetic properties - superconducting
Xiaodong Chris Li
University of South Carolina
Columbia, United States
Metrics
H-Index
i10-Index
Citation Counts
133
651
72,253
Nanomaterials
Nanomechanics
Biomaterials
Liangfang Zhang
University of California San Diego
San Diego, United States
Metrics
H-Index
i10-Index
Citation Counts
130
284
59,788
Nanomedicine
Biomaterials
Drug Delivery
Countermeasure
Vaccine
Andre Nel
University of California Los Angeles
Los Angeles, United States
Metrics
H-Index
i10-Index
Citation Counts
122
290
79,969
Nanomedicine
Drug Delivery
Nanotoxicology
NanoSafety
Immunotherapy
Michael S Strano
Metrics
H-Index
i10-Index
Citation Counts
117
391
90,240
nanotechnology
plant nanobionics
thermal properties
nanopore transport
molecular recognition
Shuming Nie
Metrics
H-Index
i10-Index
Citation Counts
111
239
99,335
Quantum Dots
SERS
Nanomedicine
Image-Guided and Robotic Surgery
Immuotherapy
Song Jin
Metrics
H-Index
i10-Index
Citation Counts
107
262
50,524
nanomaterials
renewable energy
solid state chemistry
spintronics
nanobiotechnology
Robert J Hamers
Metrics
H-Index
i10-Index
Citation Counts
107
371
41,197
Surface and Interface Chemistry
Energy Storage
Electrocatalysis and Photocatalysis
Environmental Impacts of Nanotechnology