Citation Rankings
Highly Cited Researchers

Natural Sciences / Chemical Sciences Highly Cited Researchers 20 Scientists Citation Rankings - 2025

The Citation Rankings (Highly Cited Researchers) list highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.

* Total Citation Counts Rankings
Ranking Based On Selection: 1
United Kingdom
Andrew Thomson
biological chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,529
2,578
0.120
* Total Citation Counts Rankings
Ranking Based On Selection: 2
United Kingdom
David L Andrews
Photonics
Nonlinear Optics
Multiphoton Processes
Quantum Optics
Chirality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,650
4,769
0.349
* Total Citation Counts Rankings
Ranking Based On Selection: 3
United Kingdom
Simon Clegg
Chemical thermodynamics
atmospheric chemistry
chemical oceanography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,620
3,458
0.254
* Total Citation Counts Rankings
Ranking Based On Selection: 4
United Kingdom
David Russell
Diagnostics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,502
2,685
0.256
* Total Citation Counts Rankings
Ranking Based On Selection: 5
United Kingdom
A Ganesan
Chemical Biology
Medicinal Chemistry
Natural Products
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,733
3,065
0.315
* Total Citation Counts Rankings
Ranking Based On Selection: 6
United Kingdom
Stephen Meech
Physical Chemistry
Ultrafast Spectroscopy
Photochemistry
Photobiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,039
2,488
0.275
* Total Citation Counts Rankings
Ranking Based On Selection: 7
United Kingdom
Andrew G Mayes
microplastics
polymers
nanomaterials
analytical science
sensors
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,140
2,618
0.367
* Total Citation Counts Rankings
Ranking Based On Selection: 8
United Kingdom
Simon J Lancaster
Active learning
Higher Education
Extended reality
Homogeneous Catalysis
Organometallics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,378
687
0.157
* Total Citation Counts Rankings
Ranking Based On Selection: 9
United Kingdom
Jose M Alonso|José M. Alonso, J. M. Alonso
Chemistry
Organic Chemistry
Synthesis
Catalysis
Nanomaterials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,975
1,750
0.440
* Total Citation Counts Rankings
Ranking Based On Selection: 10
United Kingdom
Susan E Matthews
Calixarene Chemistry
Molecular Pharmaceutics
Pharmacy Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,668
710
0.194
* Total Citation Counts Rankings
Ranking Based On Selection: 11
United Kingdom
Fraser MacMillan
Bioenergetics - Protein Structure and Function - Magnetic Resonance Spectroscopy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,531
792
0.224
* Total Citation Counts Rankings
Ranking Based On Selection: 12
United Kingdom
Stephen H Ashworth
Physical Chemistry
Spectroscopy
Communication of Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,080
388
0.126
* Total Citation Counts Rankings
Ranking Based On Selection: 13
United Kingdom
Udo Wegmann
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,111
926
0.439
* Total Citation Counts Rankings
Ranking Based On Selection: 14
United Kingdom
Garth Jones
chemical physics
quantum information
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,943
1,113
0.573
* Total Citation Counts Rankings
Ranking Based On Selection: 15
United Kingdom
Luca Rocchigiani
Organometallic Chemistry - Catalysis - NMR spectroscopy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,931
947
0.490
* Total Citation Counts Rankings
Ranking Based On Selection: 16
United Kingdom
Onur Atasoylu
Medicinal Chemistry
Computational Drug Design
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,533
531
0.346
* Total Citation Counts Rankings
Ranking Based On Selection: 17
United Kingdom
Maria Jose Marin
Analytical chemistry
nanobiotechnology
carbohydrates
sensors and photodynamic therapy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,239
798
0.644
* Total Citation Counts Rankings
Ranking Based On Selection: 18
United Kingdom
Sean P Bew
School of Chemistry
Norwich Research Park
NR4 7TJ
UK
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,101
249
0.226
* Total Citation Counts Rankings
Ranking Based On Selection: 19
United Kingdom
Andrew Michael Beekman
Organic Chemistry
Medicinal Chemistry
Protein-Protein Interactions
Natural Products
Chemical Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
403
242
0.600
* Total Citation Counts Rankings
Ranking Based On Selection: 20
United Kingdom
Shane P Ashby
Chemistry
physics
materials science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
173
50
0.289
* Total Citation Counts Rankings
Rankings
37,419
United Kingdom
3,273
31
Ranking Based On Selection: 1
Andrew Thomson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,529
2,578
0.120
* Total Citation Counts Rankings
Rankings
69,118
United Kingdom
5,916
43
Ranking Based On Selection: 2
David L Andrews
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,650
4,769
0.349
Photonics
Nonlinear Optics
Multiphoton Processes
Quantum Optics
Chirality
* Total Citation Counts Rankings
Rankings
69,314
United Kingdom
5,934
44
Ranking Based On Selection: 3
Simon Clegg
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,620
3,458
0.254
Chemical thermodynamics
atmospheric chemistry
chemical oceanography
* Total Citation Counts Rankings
Rankings
95,025
United Kingdom
7,934
66
Ranking Based On Selection: 4
David Russell
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,502
2,685
0.256
* Total Citation Counts Rankings
Rankings
103,688
United Kingdom
8,597
74
Ranking Based On Selection: 5
A Ganesan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,733
3,065
0.315
Chemical Biology
Medicinal Chemistry
Natural Products
* Total Citation Counts Rankings
Rankings
112,800
United Kingdom
9,229
86
Ranking Based On Selection: 6
Stephen Meech
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,039
2,488
0.275
Physical Chemistry
Ultrafast Spectroscopy
Photochemistry
Photobiology
* Total Citation Counts Rankings
Rankings
146,122
United Kingdom
11,633
111
Ranking Based On Selection: 7
Andrew G Mayes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,140
2,618
0.367
microplastics
polymers
nanomaterials
analytical science
sensors
* Total Citation Counts Rankings
Rankings
236,710
United Kingdom
17,726
182
Ranking Based On Selection: 8
Simon J Lancaster
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,378
687
0.157
Active learning
Higher Education
Extended reality
Homogeneous Catalysis
Organometallics
* Total Citation Counts Rankings
Rankings
258,628
United Kingdom
19,081
194
Ranking Based On Selection: 9
Jose M Alonso|José M. Alonso, J. M. Alonso
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,975
1,750
0.440
Chemistry
Organic Chemistry
Synthesis
Catalysis
Nanomaterials
* Total Citation Counts Rankings
Rankings
277,374
United Kingdom
20,271
213
Ranking Based On Selection: 10
Susan E Matthews
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,668
710
0.194
Calixarene Chemistry
Molecular Pharmaceutics
Pharmacy Education
* Total Citation Counts Rankings
Rankings
286,570
United Kingdom
20,799
221
Ranking Based On Selection: 11
Fraser MacMillan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,531
792
0.224
Bioenergetics - Protein Structure and Function - Magnetic Resonance Spectroscopy
* Total Citation Counts Rankings
Rankings
321,650
United Kingdom
22,851
239
Ranking Based On Selection: 12
Stephen H Ashworth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,080
388
0.126
Physical Chemistry
Spectroscopy
Communication of Science
* Total Citation Counts Rankings
Rankings
430,872
United Kingdom
28,822
282
Ranking Based On Selection: 13
Udo Wegmann
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,111
926
0.439
* Total Citation Counts Rankings
Rankings
457,192
United Kingdom
30,180
298
Ranking Based On Selection: 14
Garth Jones
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,943
1,113
0.573
* Total Citation Counts Rankings
Rankings
459,199
United Kingdom
30,273
299
Ranking Based On Selection: 15
Luca Rocchigiani
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,931
947
0.490
Organometallic Chemistry - Catalysis - NMR spectroscopy
* Total Citation Counts Rankings
Rankings
536,042
United Kingdom
34,272
329
Ranking Based On Selection: 16
Onur Atasoylu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,533
531
0.346
Medicinal Chemistry
Computational Drug Design
* Total Citation Counts Rankings
Rankings
609,858
United Kingdom
37,883
351
Ranking Based On Selection: 17
Maria Jose Marin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,239
798
0.644
Analytical chemistry
nanobiotechnology
carbohydrates
sensors and photodynamic therapy
* Total Citation Counts Rankings
Rankings
652,388
United Kingdom
39,814
361
Ranking Based On Selection: 18
Sean P Bew
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,101
249
0.226
School of Chemistry
Norwich Research Park
NR4 7TJ
UK
* Total Citation Counts Rankings
Rankings
1,017,706
United Kingdom
55,933
499
Ranking Based On Selection: 19
Andrew Michael Beekman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
403
242
0.600
Organic Chemistry
Medicinal Chemistry
Protein-Protein Interactions
Natural Products
Chemical Biology
* Total Citation Counts Rankings
Rankings
1,374,234
United Kingdom
72,098
602
Ranking Based On Selection: 20
Shane P Ashby
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
173
50
0.289