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 04, 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 (0) 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
metabolic engineering | synthetic biology | cell surface engineering | nanobiotechnolog
H-Index Metrics
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H-Index110
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i10 Index733
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Citation Counts53,107
Rankings
Bioengineering | Microalgae | Biofuel and Biorefinery | CO2 fixation | Cell-surface display engineerin
H-Index Metrics
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H-Index98
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i10 Index287
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Citation Counts33,166
Rankings
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Chondroitin sulfate | Glycobiology | Glycosaminoglycans | Heparan sulfate | Proteoglycan
H-Index Metrics
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H-Index70
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i10 Index192
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Citation Counts16,490
Rankings
Material science | Nanomaterial | Nanophotonic
H-Index Metrics
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H-Index68
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i10 Index292
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Citation Counts18,131
Rankings
nanoscience | plasmonics | nanophotonic
H-Index Metrics
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H-Index67
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i10 Index224
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Citation Counts15,787
Rankings
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biotechnology | bioengineering | biorefinery | metabolic engineerin
H-Index Metrics
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H-Index63
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i10 Index242
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Citation Counts13,474
Rankings
Metabolic engineering | Synthetic biology | Metabolomics | Applied microbiology | Microalgae and Cyanobacteri
H-Index Metrics
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H-Index62
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i10 Index181
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Citation Counts12,593
Rankings
Rankings
plant secondary metabolism | cytochrome P450 | dioxygenase | steroid | strigolacton
H-Index Metrics
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H-Index59
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i10 Index132
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Citation Counts14,857
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Abiotic stress | Allopolyploid evolution | Hybrid incompatibility | Interspecific hybrids | Natural variatio
H-Index Metrics
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H-Index57
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i10 Index147
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Citation Counts9,337
Rankings
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Organic synthesis | organometallic chemistry | transition metal catalysis | polymer synthesis | organic advanced material
H-Index Metrics
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H-Index55
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i10 Index196
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Citation Counts12,732
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