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 Jan 30, 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 (873.690) 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
molecular imaging
nanomedicine
drug and gene delivery
theranostics
radiopharmaceuticals
Metrics
H-Index
i10 Index
Citation Counts
206
1,016
155,561
* Total H IndexRankings
Ranking Based On Selection: 2
graphene
2-D materials
surface science
covalent organic framewok
batteries
Metrics
H-Index
i10 Index
Citation Counts
136
573
90,635
* Total H IndexRankings
Ranking Based On Selection: 3
electrocatalysis
materials
catalysis
batteries
magnetic nanomaterials
Metrics
H-Index
i10 Index
Citation Counts
101
220
42,528
* Total H IndexRankings
Ranking Based On Selection: 4
Surface and Interface Science
2D Materials
Nanocatalysis
surface chemistry
Metrics
H-Index
i10 Index
Citation Counts
98
361
38,020
* Total H IndexRankings
Ranking Based On Selection: 5
Photocatalysis
Wastewater Treatment
Enviromental Remediation
Advanced Oxidation Process
Environmental Engineering
Metrics
H-Index
i10 Index
Citation Counts
96
176
28,071
* Total H IndexRankings
Ranking Based On Selection: 6
Covalent Organic Frameworks (COFs)
2D Polymers
Their Chemistry
Physics
and Materials
Metrics
H-Index
i10 Index
Citation Counts
94
155
43,096
* Total H IndexRankings
Ranking Based On Selection: 7
Analytical Chemistry
Food Chemistry
Phytochemistry
Functional Foods
Metrics
H-Index
i10 Index
Citation Counts
93
224
36,134
* Total H IndexRankings
Ranking Based On Selection: 8
Applied Catalysis
Membranes
Carbon Capture & Utilization
Methane Conversion
H2 Production
Metrics
H-Index
i10 Index
Citation Counts
92
385
31,512
* Total H IndexRankings
Ranking Based On Selection: 9
Analytical Chemistry
Metrics
H-Index
i10 Index
Citation Counts
91
346
26,769
* Total H IndexRankings
Ranking Based On Selection: 10
Polymer electronics
wearable electronics
energy conversion and storage
nanomaterials
polymers
Metrics
H-Index
i10 Index
Citation Counts
89
212
30,552
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!
* Total H IndexRankings
Ranking Based On Selection: 11
Fats and Oils Chemistry and Technology
Food Nanotechonlogy
Food Technology
Metrics
H-Index
i10 Index
Citation Counts
84
383
24,645
* Total H IndexRankings
Ranking Based On Selection: 12
Catalysis
Biomass Conversion
biofuels
Metrics
H-Index
i10 Index
Citation Counts
83
385
25,988
* Total H IndexRankings
Ranking Based On Selection: 13
Nanoplasmonics
Biophotonics
Nonlinear Spectroscopy
Optical Microscopy
Single Particle Spectroscopy
Metrics
H-Index
i10 Index
Citation Counts
82
221
20,163
* Total H IndexRankings
Ranking Based On Selection: 14
Photocatalysis
electrocatalysis
materials
energy
environment
Metrics
H-Index
i10 Index
Citation Counts
81
179
23,772
* Total H IndexRankings
Ranking Based On Selection: 15
Paper-based sensor
Electroanalytical chemistry
Metrics
H-Index
i10 Index
Citation Counts
80
245
21,115
* Total H IndexRankings
Ranking Based On Selection: 16
carbon based materials
thin films
2D materials
carbon nanotubes
thermal
Metrics
H-Index
i10 Index
Citation Counts
78
357
30,572
* Total H IndexRankings
Ranking Based On Selection: 17
Applied catalysis
reaction engineering
biomass conversion
CO2 utilization
hydrogen production
Metrics
H-Index
i10 Index
Citation Counts
76
205
20,295
* Total H IndexRankings
Ranking Based On Selection: 18
Analytical Chemistry
Environmental Chemistry
Food safety control
Environmental quality
Metrics
H-Index
i10 Index
Citation Counts
75
210
24,095
* Total H IndexRankings
Ranking Based On Selection: 19
polymer
coating
electrolyte
Metrics
H-Index
i10 Index
Citation Counts
73
444
22,313
* Total H IndexRankings
Ranking Based On Selection: 20
Chemical Biology
Chemical Proteomics
Catalomics
Metrics
H-Index
i10 Index
Citation Counts
72
191
14,416
* Total H IndexRankings
Ranking Based On Selection: 21
polymers
bacteria
antibiofilm
catheter
wound dressing
Metrics
H-Index
i10 Index
Citation Counts
70
247
20,296
* Total H IndexRankings
Ranking Based On Selection: 22
Asymmetric Catalysis
Organic Synthesis
Medicinal Chemistry
Metrics
H-Index
i10 Index
Citation Counts
69
196
14,870
* Total H IndexRankings
Ranking Based On Selection: 23
Hydrochemistry
Environmental Chemistry
Environmental Forensics
Heavy Metals
Endocrine Disrupting Compounds
Metrics
H-Index
i10 Index
Citation Counts
67
221
14,712
* Total H IndexRankings
Ranking Based On Selection: 24
Material Chemistry
Organic Chemistry
2D Materials
Metrics
H-Index
i10 Index
Citation Counts
66
179
14,382
* Total H IndexRankings
Ranking Based On Selection: 25
Hydrogen fuel
CO2 Conversion
Hydrogen fuel cell
Photocatalytic Water Splitting
Energy policy
Metrics
H-Index
i10 Index
Citation Counts
66
111
12,570
Xiaoyuan Shawn Chen
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
206
1,016
155,561
molecular imaging
nanomedicine
drug and gene delivery
theranostics
radiopharmaceuticals
Kian Ping Loh
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
136
573
90,635
graphene
2-D materials
surface science
covalent organic framewok
batteries
Zhichuan J Xu
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
101
220
42,528
electrocatalysis
materials
catalysis
batteries
magnetic nanomaterials
Wei Chen
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
98
361
38,020
Surface and Interface Science
2D Materials
Nanocatalysis
surface chemistry
Wang Hou 王侯
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
96
176
28,071
Photocatalysis
Wastewater Treatment
Enviromental Remediation
Advanced Oxidation Process
Environmental Engineering
Donglin Jiang
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
94
155
43,096
Covalent Organic Frameworks (COFs)
2D Polymers
Their Chemistry
Physics
and Materials
Farooq Anwar
Universiti Putra Malaysia
Seri Kembangan, Malaysia
Metrics
H-Index
i10-Index
Citation Counts
93
224
36,134
Analytical Chemistry
Food Chemistry
Phytochemistry
Functional Foods
Sibudjing Kawi
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
92
385
31,512
Applied Catalysis
Membranes
Carbon Capture & Utilization
Methane Conversion
H2 Production
Hian Kee Lee
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
91
346
26,769
Jianyong Ouyang
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
89
212
30,552
Polymer electronics
wearable electronics
energy conversion and storage
nanomaterials
polymers
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!
Chin Ping Tan
Universiti Putra Malaysia
Seri Kembangan, Malaysia
Metrics
H-Index
i10-Index
Citation Counts
84
383
24,645
Fats and Oils Chemistry and Technology
Food Nanotechonlogy
Food Technology
YH Taufiq Yap
Universiti Putra Malaysia
Seri Kembangan, Malaysia
Metrics
H-Index
i10-Index
Citation Counts
83
385
25,988
Catalysis
Biomass Conversion
biofuels
Qing Hua Xu
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
82
221
20,163
Nanoplasmonics
Biophotonics
Nonlinear Spectroscopy
Optical Microscopy
Single Particle Spectroscopy
Rong Xu
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
81
179
23,772
Photocatalysis
electrocatalysis
materials
energy
environment
Orawon Chailapakul
Chulalongkorn University
Bangkok, Thailand
Metrics
H-Index
i10-Index
Citation Counts
80
245
21,115
Paper-based sensor
Electroanalytical chemistry
Beng Kang Tay
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
78
357
30,572
carbon based materials
thin films
2D materials
carbon nanotubes
thermal
Nor Aishah Saidina Amin
Metrics
H-Index
i10-Index
Citation Counts
76
205
20,295
Applied catalysis
reaction engineering
biomass conversion
CO2 utilization
hydrogen production
Hung Viet Pham
Metrics
H-Index
i10-Index
Citation Counts
75
210
24,095
Analytical Chemistry
Environmental Chemistry
Food safety control
Environmental quality
Ramesh K
University of Malaya
Kuala Lumpur, Malaysia
Metrics
H-Index
i10-Index
Citation Counts
73
444
22,313
Shao Yao|Shao Q Yao, Shao Qin Yao
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
72
191
14,416
Chemical Biology
Chemical Proteomics
Catalomics
Mary Chan
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
70
247
20,296
polymers
bacteria
antibiofilm
catheter
wound dressing
Yixin Lu
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
69
196
14,870
Asymmetric Catalysis
Organic Synthesis
Medicinal Chemistry
Ahmad Zaharin Aris
Universiti Putra Malaysia
Seri Kembangan, Malaysia
Metrics
H-Index
i10-Index
Citation Counts
67
221
14,712
Hydrochemistry
Environmental Chemistry
Environmental Forensics
Heavy Metals
Endocrine Disrupting Compounds
Su Chenliang
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
66
179
14,382
Material Chemistry
Organic Chemistry
2D Materials
Md. Aminul Islam
Universiti Malaysia Sabah
Kota Kinabalu, Malaysia
Metrics
H-Index
i10-Index
Citation Counts
66
111
12,570
Hydrogen fuel
CO2 Conversion
Hydrogen fuel cell
Photocatalytic Water Splitting
Energy policy