Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (870,053 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 1
Jiabao Yi
Nanotechnology
Energy materials
Catalysts
Magnetic materials
semiconductor nanostructures
Metrics
H-Index
i10 Index
Citation
66
192
15,487
* Rankings
Ranking Based On Selection: 2
Ajay S Karakoti
Surface Science
Materials Science
Nanomaterials
Synthesis
Metrics
H-Index
i10 Index
Citation
55
110
16,563
* Rankings
Ranking Based On Selection: 3
Gurwinder Singh
Nanoporous Materials
High Surface Area Materials
Porous Carbons
Energy and Environment
Metrics
H-Index
i10 Index
Citation
43
70
7,469
* Rankings
Ranking Based On Selection: 4
Cheng Fang
PFAS
microplastics
nanomaterials
electrochemistry
sensor
Metrics
H-Index
i10 Index
Citation
40
107
5,884
* Rankings
Ranking Based On Selection: 5
Kavitha Ramadass
nanomaterial synthesis and application
Soil ecotoxicity
Total Petroleum hydrocarbons
remediation
Metrics
H-Index
i10 Index
Citation
38
60
4,817
* Rankings
Ranking Based On Selection: 6
Yuen Kuan Yong
Nanopositioning
Atomic Force Microscopy
Finite element analysis
smart actuators and sensors
soft robotics
Metrics
H-Index
i10 Index
Citation
34
73
4,960
Michael G Ruppert
Nanotechnology
Microelectromechanical Systems
System Dynamics & Control
Atomic Force Microscopy
Metrics
H-Index
i10 Index
Citation
15
26
859
Rankings
Ranking Based On Selection: 1
Jiabao Yi
Metrics
H-Index
i10 Index
Citation Counts
66
192
15,487
Nanotechnology
Energy materials
Catalysts
Magnetic materials
semiconductor nanostructures
Rankings
Ranking Based On Selection: 2
Ajay S Karakoti
Metrics
H-Index
i10 Index
Citation Counts
55
110
16,563
Surface Science
Materials Science
Nanomaterials
Synthesis
Rankings
Ranking Based On Selection: 3
Gurwinder Singh
Metrics
H-Index
i10 Index
Citation Counts
43
70
7,469
Nanoporous Materials
High Surface Area Materials
Porous Carbons
Energy and Environment
Rankings
Ranking Based On Selection: 4
Cheng Fang
Metrics
H-Index
i10 Index
Citation Counts
40
107
5,884
Rankings
Ranking Based On Selection: 5
Kavitha Ramadass
Metrics
H-Index
i10 Index
Citation Counts
38
60
4,817
nanomaterial synthesis and application
Soil ecotoxicity
Total Petroleum hydrocarbons
remediation
Rankings
Ranking Based On Selection: 6
Yuen Kuan Yong
Metrics
H-Index
i10 Index
Citation Counts
34
73
4,960
Nanopositioning
Atomic Force Microscopy
Finite element analysis
smart actuators and sensors
soft robotics
Rankings
Ranking Based On Selection: 7
Jang Mee Lee
Metrics
H-Index
i10 Index
Citation Counts
31
57
3,829
Rankings
Ranking Based On Selection: 8
Michael G Ruppert
Metrics
H-Index
i10 Index
Citation Counts
15
26
859
Nanotechnology
Microelectromechanical Systems
System Dynamics & Control
Atomic Force Microscopy