The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 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 5 years. As of Jan 01, 2026, 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 (1.131.755) 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].
Rankings
Rankings
Enzyme Technology | Industrial Biotechnology | Enzyme Kinetics | Carbohydrate-active Enzyme
H-Index Metrics
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H-Index108
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i10 Index394
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Citation Counts41,690
Rankings
Nanosafety | nanotoxicology | occupational health | genetic epidemiolog
H-Index Metrics
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H-Index94
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i10 Index387
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Citation Counts29,817
Rankings
Rankings
Rankings
Thermodynamics | Oil & Gas | Product Design | Colloids & Interfaces | Biotechnolog
H-Index Metrics
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H-Index70
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i10 Index306
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Citation Counts19,545
Rankings
Rankings
Rankings
Rankings
Rankings
Biogas | Biotechnology | Biomanufacturing | Biochemical Engineerin
H-Index Metrics
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H-Index46
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i10 Index83
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Citation Counts6,660
Rankings
Rankings
density functional theory | surface chemistry | geochemistry | solid-fluid interfaces | COSMO-R
H-Index Metrics
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H-Index42
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i10 Index91
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Citation Counts8,791
Rankings
Rankings
Electrochemistry | nanoporous gold | biosensor | biofuel cell | electrocatalysi
H-Index Metrics
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H-Index35
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i10 Index69
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Citation Counts3,581
Rankings
combustion | chemical engineering | reaction engineering | multiphase reactive flows | high temperatur
H-Index Metrics
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H-Index33
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i10 Index87
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Citation Counts3,304
Rankings
Rankings
electrochemistry | multi-scale modelling | DFT calculation
H-Index Metrics
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H-Index31
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i10 Index46
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Citation Counts6,016
Rankings
Electrochemistry | Nano Materials | Lithium ion batteries | Magnesium ion batteries | Supercapacitor
H-Index Metrics
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H-Index29
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i10 Index49
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Citation Counts2,131
Rankings
CO2 pilots | Biogas upgrading | CCS | Corrosion | Thermodynamic
H-Index Metrics
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H-Index29
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i10 Index80
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Citation Counts2,718
Rankings
Electrochemistry | Conducting Polymers | Polymer actuators | Smart Fabrics | Supercapacitor
H-Index Metrics
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H-Index27
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i10 Index41
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Citation Counts3,302
Rankings
Catalysis | Materials Chemistry | Physical Chemistry | process technolog
H-Index Metrics
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H-Index27
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i10 Index41
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Citation Counts1,963
Rankings
Rankings
Membrane separation Technology | Catalysis | Chemical Engineering | Reactor & Reaction Engineerin
H-Index Metrics
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H-Index26
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i10 Index40
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Citation Counts4,449
Rankings
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