Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 195 Scientists Citation Rankings (Sort by last 6 years Citation Index) - 2025
Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 1
Electronics Eng
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,517
2,891
0.822
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* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 2
Solid State Physics
Nanotechnology
Polymer Physic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,625
2,390
0.910
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 3
Pharmaceutics
Pharmaceutical Technology
Nanomedicine
Drug Delivery
Formulation Desig
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,333
1,150
0.863
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 4
PROTACs
Carbonic anhydrase
Kinases
Histone deacetylases
Degrader
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,551
1,095
0.706
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 5
Medicinal Chemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,096
960
0.876
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 6
Physics
Materials Science
Photonics Materials
Materials for Nuclear Application
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,016
821
0.808
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 7
Pharmaceutical analytical chemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,273
652
0.512
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 8
Neuroscience
Nephrotoxicity
Hepatotoxicity
Molecular Science
Oxidative stres
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
490
483
0.986
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 9
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
357
354
0.992
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* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 10
Medicinal chemistry
Organic chemistry
Drug desig
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
332
322
0.970
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 11
Pharmaceutical analysis and computational chemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
272
271
0.996
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 12
Numerical analysis
Computational methods
Differential equation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
263
252
0.958
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 13
Microbiology and Immunolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
250
242
0.968
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 14
hepatology
genetics
gastroenterolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
299
240
0.803
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 15
medicinal chemisrt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
267
237
0.888
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 16
Spectroscopy
FTIR
Chromatography
LC-MS/M
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
260
237
0.912
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 17
Physical chemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
230
225
0.978
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 18
biochemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
291
221
0.759
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 19
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
206
206
1.000
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 20
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
201
188
0.935
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 21
Analytical chemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
187
180
0.963
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 22
Pharmaceutics
Drug delivery
Nano-based drug
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
188
177
0.941
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 23
biochemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
200
176
0.880
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 24
Pharmaceutical Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
207
173
0.836
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 25
Mat
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
163
160
0.982
* Last 6 Years Citation Counts Rankings
Rankings
176,608
520
1
Ranking Based On Selection: 1
Hesham Fa Hamed
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,517
2,891
0.822
* Last 6 Years Citation Counts Rankings
Rankings
216,707
682
2
Ranking Based On Selection: 2
MA Morsi|M. A. Morsi
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,625
2,390
0.910
Solid State Physics
Nanotechnology
Polymer Physic
* Last 6 Years Citation Counts Rankings
Rankings
424,456
1,747
3
Ranking Based On Selection: 3
Hossam S El Sawy
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,333
1,150
0.863
Pharmaceutics
Pharmaceutical Technology
Nanomedicine
Drug Delivery
Formulation Desig
* Last 6 Years Citation Counts Rankings
Rankings
440,916
1,833
4
Ranking Based On Selection: 4
Hany S Ibrahim
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,551
1,095
0.706
PROTACs
Carbonic anhydrase
Kinases
Histone deacetylases
Degrader
* Last 6 Years Citation Counts Rankings
Rankings
486,210
2,105
5
Ranking Based On Selection: 5
Mahmoud F Abo Ashour
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,096
960
0.876
* Last 6 Years Citation Counts Rankings
Rankings
542,165
2,541
6
Ranking Based On Selection: 6
Aly Saeed
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,016
821
0.808
Physics
Materials Science
Photonics Materials
Materials for Nuclear Application
* Last 6 Years Citation Counts Rankings
Rankings
627,139
3,222
7
Ranking Based On Selection: 7
Hany Ibrahim
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,273
652
0.512
Pharmaceutical analytical chemistr
* Last 6 Years Citation Counts Rankings
Rankings
746,706
4,224
8
Ranking Based On Selection: 8
Ahmed M Atwa
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
490
483
0.986
Neuroscience
Nephrotoxicity
Hepatotoxicity
Molecular Science
Oxidative stres
* Last 6 Years Citation Counts Rankings
Rankings
882,635
5,508
9
Ranking Based On Selection: 9
Ahmad Ga Khater
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
357
354
0.992
* Last 6 Years Citation Counts Rankings
Rankings
926,025
5,997
10
Ranking Based On Selection: 10
Mohamed A. Sayed|Mohamed A. Said
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
332
322
0.970
Medicinal chemistry
Organic chemistry
Drug desig
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* Last 6 Years Citation Counts Rankings
Rankings
1,007,626
6,989
11
Ranking Based On Selection: 11
Khaled Attala
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
272
271
0.996
Pharmaceutical analysis and computational chemistr
* Last 6 Years Citation Counts Rankings
Rankings
1,042,500
7,448
12
Ranking Based On Selection: 12
Eslam S. Youssef
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
263
252
0.958
Numerical analysis
Computational methods
Differential equation
* Last 6 Years Citation Counts Rankings
Rankings
1,061,994
7,711
13
Ranking Based On Selection: 13
Dalia A. El-Damasy
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
250
242
0.968
* Last 6 Years Citation Counts Rankings
Rankings
1,065,481
7,758
14
Ranking Based On Selection: 14
Radwa Hagag
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
299
240
0.803
* Last 6 Years Citation Counts Rankings
Rankings
1,071,744
7,851
15
Ranking Based On Selection: 15
Mayar Ayad
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
267
237
0.888
* Last 6 Years Citation Counts Rankings
Rankings
1,071,820
7,853
16
Ranking Based On Selection: 16
Michael Gamal Fawzy
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
260
237
0.912
* Last 6 Years Citation Counts Rankings
Rankings
1,097,241
8,210
17
Ranking Based On Selection: 17
Takwa Ellakwa
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
230
225
0.978
* Last 6 Years Citation Counts Rankings
Rankings
1,105,263
8,324
18
Ranking Based On Selection: 18
Ahmed Mostafa Reda
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
291
221
0.759
* Last 6 Years Citation Counts Rankings
Rankings
1,141,473
8,833
19
Ranking Based On Selection: 19
Aya Tarek
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
206
206
1.000
* Last 6 Years Citation Counts Rankings
Rankings
1,187,163
9,508
20
Ranking Based On Selection: 20
Mohamed Bahlol
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
201
188
0.935
* Last 6 Years Citation Counts Rankings
Rankings
1,209,427
9,827
21
Ranking Based On Selection: 21
Omar M El-Abassy
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
187
180
0.963
* Last 6 Years Citation Counts Rankings
Rankings
1,217,839
9,966
22
Ranking Based On Selection: 22
Heba A. Yassin
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
188
177
0.941
Pharmaceutics
Drug delivery
Nano-based drug
* Last 6 Years Citation Counts Rankings
Rankings
1,220,462
10,005
23
Ranking Based On Selection: 23
Hadeer Saied
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
200
176
0.880
* Last 6 Years Citation Counts Rankings
Rankings
1,229,074
10,126
24
Ranking Based On Selection: 24
Soha R. Abd El Hadi
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
207
173
0.836
Pharmaceutical Chemistry
* Last 6 Years Citation Counts Rankings
Rankings
1,270,108
10,791
25
Ranking Based On Selection: 25
Ali Sharawy
Egyptian Russian University
Cairo, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
163
160
0.982