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 (870.053) 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
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: 2
Materials
Nanostructures
Energy Storage
Metrics
H-Index
i10 Index
Citation Counts
116
347
48,010
* Total H IndexRankings
Ranking Based On Selection: 3
Biomaterials
Nanotechnology
Surface Science and Engineering
Metrics
H-Index
i10 Index
Citation Counts
116
582
48,833
* Total H IndexRankings
Ranking Based On Selection: 4
Reaction Engineering & Catalysis
Air Pollution and Waste Water Control Engineering
Fuel Technology
Nanoscience & Nanotechnol
Metrics
H-Index
i10 Index
Citation Counts
112
525
48,334
* Total H IndexRankings
Ranking Based On Selection: 5
nanoclusters
metal nanomaterials
cluster chemistry
nanomedicine
Metrics
H-Index
i10 Index
Citation Counts
101
228
35,365
* Total H IndexRankings
Ranking Based On Selection: 6
Synchrotron Radiation for Materials Science Applications
Metrics
H-Index
i10 Index
Citation Counts
92
276
28,408
* Total H IndexRankings
Ranking Based On Selection: 7
Particle Technology
Drug Delivery System
Biomass Gasification
Metrics
H-Index
i10 Index
Citation Counts
90
329
26,311
* Total H IndexRankings
Ranking Based On Selection: 8
Porous Materials
Membranes
Gas Separation
Nanofiltration
Chemical Sensing
Metrics
H-Index
i10 Index
Citation Counts
89
206
28,004
* Total H IndexRankings
Ranking Based On Selection: 9
Chemistry
Materials Science
Surface Science
Metrics
H-Index
i10 Index
Citation Counts
87
241
30,181
* Total H IndexRankings
Ranking Based On Selection: 10
Green Chemistry
Catalysis
Chitin
CO2
Metrics
H-Index
i10 Index
Citation Counts
86
201
23,961
* Total H IndexRankings
Ranking Based On Selection: 11
Nanomedicine
Biomaterials
Drug Delivery
Cancer Nanotechnology
Metrics
H-Index
i10 Index
Citation Counts
83
173
25,437
* Total H IndexRankings
Ranking Based On Selection: 12
Renewable Solar Fuels
Photo-catalysis and Water Splitting
CO2 conversion and Hydrogen Production
Wastewater Treatment
Metrics
H-Index
i10 Index
Citation Counts
82
278
19,122
* Total H IndexRankings
Ranking Based On Selection: 13
Materials Modeling
MOFs
Polymer Membranes
Amphiphilic Polymers
Metrics
H-Index
i10 Index
Citation Counts
82
259
19,633
* Total H IndexRankings
Ranking Based On Selection: 14
Electrochemistry
Electrocatalysis
Lithium-ion batteries
Li-Air batteries
Supercapacitors
Metrics
H-Index
i10 Index
Citation Counts
79
182
32,206
* Total H IndexRankings
Ranking Based On Selection: 15
Heterogeneous Catalysts
Biodiesel
Nano-magnetic Catalysts
Bio-based Catalysts
Metrics
H-Index
i10 Index
Citation Counts
78
302
21,314
* Total H IndexRankings
Ranking Based On Selection: 16
Biochemical engineering
Anaerobic digestion
Food waste
Biomaterials
Metrics
H-Index
i10 Index
Citation Counts
77
204
17,028
* Total H IndexRankings
Ranking Based On Selection: 17
Gas Hydrates
Clathrate Hydrates
Chemical Engineering
CO2 Capture
CO2 Sequestration
Metrics
H-Index
i10 Index
Citation Counts
75
184
20,947
* Total H IndexRankings
Ranking Based On Selection: 18
Bionanotechnology
NanoEL
TMD
Nano-biology
Nano-safety
Metrics
H-Index
i10 Index
Citation Counts
74
146
19,716
* Total H IndexRankings
Ranking Based On Selection: 19
Chemical reaction
renewable energy
environmental engineering
oleochemical engineering
Metrics
H-Index
i10 Index
Citation Counts
71
205
18,654
* Total H IndexRankings
Ranking Based On Selection: 20
crystallisation
formulation science
life cycle assessment
Metrics
H-Index
i10 Index
Citation Counts
71
204
16,154
* Total H IndexRankings
Ranking Based On Selection: 21
Nanotechnology
Ultrasound
Pharmaceuticals
Water treatment
Extraction
Metrics
H-Index
i10 Index
Citation Counts
70
228
15,002
* Total H IndexRankings
Ranking Based On Selection: 22
Process System Engineering
Modelling and Process Optimization
Direct Methanol fuel cell
Fuel cell technology
Metrics
H-Index
i10 Index
Citation Counts
70
215
20,744
* Total H IndexRankings
Ranking Based On Selection: 23
Metrics
H-Index
i10 Index
Citation Counts
70
140
15,498
* Total H IndexRankings
Ranking Based On Selection: 24
Metrics
H-Index
i10 Index
Citation Counts
66
179
23,740
* Total H IndexRankings
Ranking Based On Selection: 25
process optimization
energy systems & integration
planning/scheduling
chemical logistics
systems biology.
Metrics
H-Index
i10 Index
Citation Counts
66
242
14,303
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
Jim Yang Lee
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
116
347
48,010
Materials
Nanostructures
Energy Storage
Koon Gee Neoh
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
116
582
48,833
Biomaterials
Nanotechnology
Surface Science and Engineering
Abdul Rahman Mohamed
Universiti Sains Malaysia
Penang, Malaysia
Metrics
H-Index
i10-Index
Citation Counts
112
525
48,334
Reaction Engineering & Catalysis
Air Pollution and Waste Water Control Engineering
Fuel Technology
Nanoscience & Nanotechnol
Jianping Xie
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
101
228
35,365
nanoclusters
metal nanomaterials
cluster chemistry
nanomedicine
Xi Shibo
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
92
276
28,408
Synchrotron Radiation for Materials Science Applications
Chi Hwa Wang
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
90
329
26,311
Particle Technology
Drug Delivery System
Biomass Gasification
Dan Zhao
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
89
206
28,004
Porous Materials
Membranes
Gas Separation
Nanofiltration
Chemical Sensing
Hua Chun Zeng
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
87
241
30,181
Chemistry
Materials Science
Surface Science
Ning Yan
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
86
201
23,961
Green Chemistry
Catalysis
Chitin
CO2
Si Shen Feng(冯思慎)
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
83
173
25,437
Nanomedicine
Biomaterials
Drug Delivery
Cancer Nanotechnology
Muhammad Tahir
Metrics
H-Index
i10-Index
Citation Counts
82
278
19,122
Renewable Solar Fuels
Photo-catalysis and Water Splitting
CO2 conversion and Hydrogen Production
Wastewater Treatment
Jianwen Jiang
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
82
259
19,633
Materials Modeling
MOFs
Polymer Membranes
Amphiphilic Polymers
Jixin Zhu 朱纪欣
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
79
182
32,206
Electrochemistry
Electrocatalysis
Lithium-ion batteries
Li-Air batteries
Supercapacitors
Umer Rashid
Universiti Putra Malaysia
Seri Kembangan, Malaysia
Metrics
H-Index
i10-Index
Citation Counts
78
302
21,314
Heterogeneous Catalysts
Biodiesel
Nano-magnetic Catalysts
Bio-based Catalysts
Yen Wah Tong
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
77
204
17,028
Biochemical engineering
Anaerobic digestion
Food waste
Biomaterials
Praveen Linga Pe
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
75
184
20,947
Gas Hydrates
Clathrate Hydrates
Chemical Engineering
CO2 Capture
CO2 Sequestration
David Leong
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
74
146
19,716
Bionanotechnology
NanoEL
TMD
Nano-biology
Nano-safety
Ahmad Zuhairi Abdullah
Universiti Sains Malaysia
Penang, Malaysia
Metrics
H-Index
i10-Index
Citation Counts
71
205
18,654
Chemical reaction
renewable energy
environmental engineering
oleochemical engineering
Reginald Tan
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
71
204
16,154
crystallisation
formulation science
life cycle assessment
Sivakumar Manickam
Metrics
H-Index
i10-Index
Citation Counts
70
228
15,002
Nanotechnology
Ultrasound
Pharmaceuticals
Water treatment
Extraction
Siti Kartom Kamarudin
Metrics
H-Index
i10-Index
Citation Counts
70
215
20,744
Process System Engineering
Modelling and Process Optimization
Direct Methanol fuel cell
Fuel cell technology
Yen Peng Ting
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
70
140
15,498
Siang Piao Chai
Monash University Malaysia
Selangor, Malaysia
Metrics
H-Index
i10-Index
Citation Counts
66
179
23,740
Iftekhar A Karimi
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
66
242
14,303
process optimization
energy systems & integration
planning/scheduling
chemical logistics
systems biology.