World Scientist and University Rankings 2026

World Engineering & Technology 3.460 Scientists Subject Rankings

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 Sep 02, 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 (1.122.044) 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].

Country

Total 3.460 scientists, 221 country, 24.498 institution

List without CERN, Statistical Data etc.

Sort by last 5 years H Index

* Total H Index Rankings

Rankings

1,446

World Rank

Country Rank

University

Ranking Based On Selection:

Rui L Reis

Universidade do Minho Braga, Portugal

Engineering & Technology / Biomaterials and Tissue Engineering
tissue engineering | regenerative medicine | biomaterials | stem cells | biomedical engineerin

H-Index Metrics

H-Index

162
i10 Index

1,345
Citation Counts

122,437

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* Total H Index Rankings

Rankings

2,901

World Rank

Country Rank

University

Ranking Based On Selection:

Yufeng Zheng

Peking University Beijing, China

Engineering & Technology / Biomaterials and Tissue Engineering
Biomaterial

H-Index Metrics

H-Index

137
i10 Index

777
Citation Counts

77,573

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* Total H Index Rankings

Rankings

2,944

World Rank

1,312

Country Rank

139

University

Ranking Based On Selection:

Mehmet Toner

Harvard University Cambridge, United States

Engineering & Technology / Biomaterials and Tissue Engineering
Tissue engineering | cryobiology | microfluidic

H-Index Metrics

H-Index

137
i10 Index

491
Citation Counts

86,109

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* Total H Index Rankings

Rankings

3,116

World Rank

1,391

Country Rank

University

Ranking Based On Selection:

Rocky Tuan

University of Pittsburgh Pittsburgh, United States

Engineering & Technology / Biomaterials and Tissue Engineering
stem cells | biomaterials | tissue engineering and regenerative medicine | musculoskeletal biology | tissue on a chi

H-Index Metrics

H-Index

135
i10 Index

517
Citation Counts

72,940

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* Total H Index Rankings

Rankings

3,247

World Rank

1,456

Country Rank

University

Ranking Based On Selection:

Savio Ly Woo

University of Pittsburgh Pittsburgh, United States

Engineering & Technology / Biomaterials and Tissue Engineering
Biomechanics | ligaments and tendons | tissue engineering and regeneration using degradable bioscaffolds and magnesium | orthopaed

H-Index Metrics

H-Index

134
i10 Index

410
Citation Counts

62,074

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* Total H Index Rankings

Rankings

4,193

World Rank

1,900

Country Rank

University

Ranking Based On Selection:

Peter X Ma

University of Michigan Ann Arbor, United States

Engineering & Technology / Biomaterials and Tissue Engineering
Biomaterial | Tissue Engineering | Controlled Release | Regeneratio

H-Index Metrics

H-Index

125
i10 Index

297
Citation Counts

62,449

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* Total H Index Rankings

Rankings

5,197

World Rank

186

Country Rank

University

Ranking Based On Selection:

Wei Chen

China Pharmaceutical University Nanjing, China

Engineering & Technology / Biomaterials and Tissue Engineering
advanced functional materials | nano-structure | tissue engineerin

H-Index Metrics

H-Index

118
i10 Index

416
Citation Counts

55,740

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* Total H Index Rankings

Rankings

6,549

World Rank

2,963

Country Rank

University

Ranking Based On Selection:

Mansoor M Amiji

Northeastern University Boston, United States

Engineering & Technology / Biomaterials and Tissue Engineering
Biomaterials | Drug Delivery | Gene Delivery | Nanomedicin

H-Index Metrics

H-Index

112
i10 Index

321
Citation Counts

39,818

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* Total H Index Rankings

Rankings

6,784

World Rank

3,071

Country Rank

University

Ranking Based On Selection:

Kyriacos A Athanasiou

University of California Irvine Irvine, United States

Engineering & Technology / Biomaterials and Tissue Engineering
Biomechanics | Tissue Engineering | Orthopaedics | Biomaterial

H-Index Metrics

H-Index

111
i10 Index

351
Citation Counts

47,867

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* Total H Index Rankings

Rankings

6,815

World Rank

Country Rank

University

Ranking Based On Selection:

Masayuki Yamato

Tokyo Women's Medical University Tokyo, Japan

Engineering & Technology / Biomaterials and Tissue Engineering
Tissue Engineering | Regenerative Medicine | Stem Cell Biolog

H-Index Metrics

H-Index

111
i10 Index

412
Citation Counts

46,040

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* Total H Index Rankings

Rankings

8,688

World Rank

767

Country Rank

University

Ranking Based On Selection:

Jonathan C Knowles

University College London London, United Kingdom

Engineering & Technology / Biomaterials and Tissue Engineering
Biomaterials | glass | X-ray diffraction | Biomaterials & tissue engineering | tissue engineerin

H-Index Metrics

H-Index

104
i10 Index

422
Citation Counts

38,540

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* Total H Index Rankings

Rankings

9,865

World Rank

437

Country Rank

University

Ranking Based On Selection:

Shuilin Wu

Hubei University Wuhan, China

Engineering & Technology / Biomaterials and Tissue Engineering
Antibacterial | Smart Biomaterials | Surface & Interface Engineerin

H-Index Metrics

H-Index

100
i10 Index

333
Citation Counts

32,224

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* Total H Index Rankings

Rankings

10,271

World Rank

457

Country Rank

University

Ranking Based On Selection:

Deling Kong

Nankai University Tianjin, China

Engineering & Technology / Biomaterials and Tissue Engineering
tissue engineering | biomaterial

H-Index Metrics

H-Index

99
i10 Index

413
Citation Counts

35,319

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* Total H Index Rankings

Rankings

11,050

World Rank

490

Country Rank

University

Ranking Based On Selection:

Wenguo Cui

Shanghai Jiao Tong University Shanghai, China

Engineering & Technology / Biomaterials and Tissue Engineering
Electrospinning | Nanotechnology | Tissue engineering scaffold | Drug delivery | electrospun

H-Index Metrics

H-Index

97
i10 Index

393
Citation Counts

30,889

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* Total H Index Rankings

Rankings

12,001

World Rank

5,317

Country Rank

376

University

Ranking Based On Selection:

Elena Aikawa

Harvard University Cambridge, United States

Engineering & Technology / Biomaterials and Tissue Engineering
Vascular biology | calcific aortic valve disease | atherosclerosis | tissue engineerin

H-Index Metrics

H-Index

95
i10 Index

224
Citation Counts

51,312

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* Total H Index Rankings

Rankings

12,418

World Rank

551

Country Rank

University

Ranking Based On Selection:

Wang Lili 王丽丽

Jilin University Changchun, China

Engineering & Technology / Biomaterials and Tissue Engineering
Biomaterials | Semiconductor | Senso

H-Index Metrics

H-Index

94
i10 Index

413
Citation Counts

29,730

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* Total H Index Rankings

Rankings

12,497

World Rank

560

Country Rank

University

Ranking Based On Selection:

Yan Jin

The Fourth Military Medical University Xi'an, China

Engineering & Technology / Biomaterials and Tissue Engineering
Tissue Engineering & Regenerative Medicin

H-Index Metrics

H-Index

94
i10 Index

364
Citation Counts

28,666

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* Total H Index Rankings

Rankings

14,162

World Rank

648

Country Rank

University

Ranking Based On Selection:

Changjian Lin

Xiamen University Xiamen, China

Engineering & Technology / Biomaterials and Tissue Engineering
Biomaterials | corrosion | electrochemistry | photocatalysis | solar cell

H-Index Metrics

H-Index

91
i10 Index

320
Citation Counts

43,865

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* Total H Index Rankings

Rankings

14,967

World Rank

6,589

Country Rank

143

University

Ranking Based On Selection:

Sanjay K Nigam

University of California San Diego San Diego, United States

Engineering & Technology / Biomaterials and Tissue Engineering
Kidney | Drug Transporters | Machine Learning | Tissue Engineering | Pharmacokinetic

H-Index Metrics

H-Index

90
i10 Index

206
Citation Counts

23,648

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* Total H Index Rankings

Rankings

14,980

World Rank

122

Country Rank

University

Ranking Based On Selection:

Ka Khor

Nanyang Technological University Jurong West, Singapore

Engineering & Technology / Biomaterials and Tissue Engineering
biomaterials | plasma spray spark plasma sinterin

H-Index Metrics

H-Index

90
i10 Index

297
Citation Counts

26,137

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* Total H Index Rankings

Rankings

15,026

World Rank

280

Country Rank

University

Ranking Based On Selection:

Hans P Merkle

Eidgenössische Technische Hochschule ETH Zürich Zurich, Switzerland

Engineering & Technology / Biomaterials and Tissue Engineering
Drug delivery | drug formulation | vaccine delivery | tissue engineerin

H-Index Metrics

H-Index

90
i10 Index

196
Citation Counts

24,372

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* Total H Index Rankings

Rankings

15,561

World Rank

300

Country Rank

University

Ranking Based On Selection:

Josep A. Planell|Josep Anton Planell, Josep Planell, J.A Planell

Universitat Oberta de Catalunya Barcelona, Spain

Engineering & Technology / Biomaterials and Tissue Engineering
Biomaterials | E-Learning | Biomaterial Engineering | Tissue engineering | Computer modellin