Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Art, Design and Architecture, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences and Social Sciences and their 256 sub-branches is a unique service offered only by “AD Scientific Index”. You can see the most cited and influential researchers in the country and region. See also for more specific citation analyses: "last 6 years citation index" Universities Rankings 2024 (Sort by: Total Citations) and Universities Rankings 2024 (Sort by : Last 6 Years Citations)
* Total Citation Counts Rankings
World Rank
8,692
Country Rank
25
Institution Rank : 1
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Fernando Albericio](/user/assets/images/profile/no-profile-photo.png)
medicinal chemistry
peptides
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,570
24,829
0.463
* Total Citation Counts Rankings
World Rank
48,842
Country Rank
156
Institution Rank : 14
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Gert (Hg) Kruger|Hendrik Gerhardus Kruger](https://cdn.adscientificindex.com/pictures/b3/98192.jpg)
Organic synthesis
Cage chemistry
TB drugs
HIV PR inhibitors
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,104
11,903
0.696
* Total Citation Counts Rankings
World Rank
58,010
Country Rank
193
Institution Rank : 19
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Beatriz G. De La Torre](/user/assets/images/profile/no-profile-photo.png)
Medicinal Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,028
10,979
0.731
* Total Citation Counts Rankings
World Rank
63,169
Country Rank
214
Institution Rank : 22
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Jonnalagadda, SB](https://cdn.adscientificindex.com/pictures/a3/100371.jpg)
Catalysis
ozone
oxidation
green chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,074
9,568
0.680
* Total Citation Counts Rankings
World Rank
163,160
Country Rank
643
Institution Rank : 56
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Sooboo Singh](/user/assets/images/profile/no-profile-photo.png)
Catalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,160
2,112
0.343
* Total Citation Counts Rankings
World Rank
164,585
Country Rank
650
Institution Rank : 59
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Fanie Van Heerden](https://cdn.adscientificindex.com/pictures/81/97460.jpg)
Chemistry
Natural Product Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,105
2,200
0.360
* Total Citation Counts Rankings
World Rank
182,877
Country Rank
752
Institution Rank : 68
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Glenn Maguire](/user/assets/images/profile/no-profile-photo.png)
Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,492
2,432
0.443
* Total Citation Counts Rankings
World Rank
220,343
Country Rank
935
Institution Rank : 78
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Ilya Sinayskiy](https://cdn.adscientificindex.com/pictures/ee/99532.jpg)
open quantum systems
quantum optics
quantum information
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,523
3,485
0.771
* Total Citation Counts Rankings
World Rank
242,012
Country Rank
1,025
Institution Rank : 83
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Parvesh Singh](https://cdn.adscientificindex.com/pictures/34/88612.jpg)
synthetic organic chemistry
computational and bioanalytical chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,087
2,905
0.711
* Total Citation Counts Rankings
World Rank
244,727
Country Rank
1,041
Institution Rank : 84
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Bice Martincigh](/user/assets/images/profile/no-profile-photo.png)
chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,038
2,971
0.736
* Total Citation Counts Rankings
World Rank
245,740
Country Rank
1,045
Institution Rank : 85
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Holger Friedrich](/user/assets/images/profile/no-profile-photo.png)
catalysis
organometallic chemistry
materials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,020
2,265
0.563
* Total Citation Counts Rankings
World Rank
251,275
Country Rank
1,074
Institution Rank : 88
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Vincent O. Nyamori](https://cdn.adscientificindex.com/pictures/08/91865.jpg)
Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,924
2,757
0.703
* Total Citation Counts Rankings
World Rank
252,905
Country Rank
1,082
Institution Rank : 89
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Neil Koorbanally](https://cdn.adscientificindex.com/pictures/89/95677.jpg)
Medicinal Chemistry
Organic Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,895
2,808
0.721
* Total Citation Counts Rankings
World Rank
253,038
Country Rank
1,084
Institution Rank : 90
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Werner E. Van Zyl](https://cdn.adscientificindex.com/pictures/04/92100.jpg)
Biomass
water desalination and purification
sustainable energy
clusters
dithiophosphonate ligands
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,893
2,275
0.584
* Total Citation Counts Rankings
World Rank
320,198
Country Rank
1,437
Institution Rank : 122
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Sandile Songca](https://cdn.adscientificindex.com/pictures/13/90281.jpg)
photodynamic therapy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,954
2,034
0.689
* Total Citation Counts Rankings
World Rank
352,155
Country Rank
1,601
Institution Rank : 135
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Tricia Naicker](https://cdn.adscientificindex.com/pictures/3a/91635.jpg)
Organic chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,625
1,801
0.686
* Total Citation Counts Rankings
World Rank
381,510
Country Rank
1,764
Institution Rank : 153
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Deepali Sharma](https://cdn.adscientificindex.com/pictures/c2/106224.jpg)
Synthesis of nanoparticles
computational chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,367
1,885
0.796
* Total Citation Counts Rankings
World Rank
393,974
Country Rank
1,837
Institution Rank : 160
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Bernard Omondi](https://cdn.adscientificindex.com/pictures/79/105027.jpg)
Structural chemistry
metal-organic chemistry
homogeneous catalysis and biological (antimicrobial
antifungal
anticancer) st
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,269
1,451
0.639
* Total Citation Counts Rankings
World Rank
445,515
Country Rank
2,115
Institution Rank : 188
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Stephen Ojwach](https://cdn.adscientificindex.com/pictures/ba/90991.jpg)
Organometallic Chemistry and Catalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,918
1,064
0.555
* Total Citation Counts Rankings
World Rank
476,624
Country Rank
2,271
Institution Rank : 203
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Roshila Moodley](/user/assets/images/profile/no-profile-photo.png)
Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,740
1,424
0.818
* Total Citation Counts Rankings
World Rank
597,376
Country Rank
2,985
Institution Rank : 247
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Matthew Akerman](https://cdn.adscientificindex.com/pictures/9f/93530.jpg)
Structural and medicinal inorganic chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,222
781
0.639
* Total Citation Counts Rankings
World Rank
646,929
Country Rank
3,257
Institution Rank : 262
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Muhammad D. Bala](https://cdn.adscientificindex.com/pictures/74/95200.jpg)
Organometallic Chemistry and Homogeneous Catalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,064
454
0.427
* Total Citation Counts Rankings
World Rank
674,434
Country Rank
3,420
Institution Rank : 277
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Mathew K Moodley](https://cdn.adscientificindex.com/pictures/7b/93510.jpg)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
985
650
0.660
* Total Citation Counts Rankings
World Rank
693,934
Country Rank
3,541
Institution Rank : 283
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![PV Narayana](https://cdn.adscientificindex.com/pictures/39/89011.jpg)
Electrochemical sensors
biosensors
Electroanalytical methods
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
933
795
0.852
* Total Citation Counts Rankings
World Rank
806,051
Country Rank
4,227
Institution Rank : 321
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Thishana Singh](https://cdn.adscientificindex.com/pictures/c1/4638642.jpg)
Computational Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
679
546
0.804
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
8,692
![South Africa](/flags/za.png)
25
![](https://cdn.adscientificindex.com/logos/11125.png)
1
Fernando Albericio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,570
24,829
0.463
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
48,842
![South Africa](/flags/za.png)
156
![](https://cdn.adscientificindex.com/logos/11125.png)
14
Gert (Hg) Kruger|Hendrik Gerhardus Kruger
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,104
11,903
0.696
![](https://cdn.adscientificindex.com/logos/11125.png)
Organic synthesis
Cage chemistry
TB drugs
HIV PR inhibitors
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
58,010
![South Africa](/flags/za.png)
193
![](https://cdn.adscientificindex.com/logos/11125.png)
19
Beatriz G. De La Torre
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,028
10,979
0.731
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
63,169
![South Africa](/flags/za.png)
214
![](https://cdn.adscientificindex.com/logos/11125.png)
22
Jonnalagadda, SB
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,074
9,568
0.680
![](https://cdn.adscientificindex.com/logos/11125.png)
Catalysis
ozone
oxidation
green chemistry
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
163,160
![South Africa](/flags/za.png)
643
![](https://cdn.adscientificindex.com/logos/11125.png)
56
Sooboo Singh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,160
2,112
0.343
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
164,585
![South Africa](/flags/za.png)
650
![](https://cdn.adscientificindex.com/logos/11125.png)
59
Fanie Van Heerden
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,105
2,200
0.360
![](https://cdn.adscientificindex.com/logos/11125.png)
Chemistry
Natural Product Chemistry
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
182,877
![South Africa](/flags/za.png)
752
![](https://cdn.adscientificindex.com/logos/11125.png)
68
Glenn Maguire
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,492
2,432
0.443
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
220,343
![South Africa](/flags/za.png)
935
![](https://cdn.adscientificindex.com/logos/11125.png)
78
Ilya Sinayskiy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,523
3,485
0.771
![](https://cdn.adscientificindex.com/logos/11125.png)
open quantum systems
quantum optics
quantum information
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
242,012
![South Africa](/flags/za.png)
1,025
![](https://cdn.adscientificindex.com/logos/11125.png)
83
Parvesh Singh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,087
2,905
0.711
![](https://cdn.adscientificindex.com/logos/11125.png)
synthetic organic chemistry
computational and bioanalytical chemistry
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
244,727
![South Africa](/flags/za.png)
1,041
![](https://cdn.adscientificindex.com/logos/11125.png)
84
Bice Martincigh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,038
2,971
0.736
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* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
245,740
![South Africa](/flags/za.png)
1,045
![](https://cdn.adscientificindex.com/logos/11125.png)
85
Holger Friedrich
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,020
2,265
0.563
![](https://cdn.adscientificindex.com/logos/11125.png)
catalysis
organometallic chemistry
materials
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
251,275
![South Africa](/flags/za.png)
1,074
![](https://cdn.adscientificindex.com/logos/11125.png)
88
Vincent O. Nyamori
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,924
2,757
0.703
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
252,905
![South Africa](/flags/za.png)
1,082
![](https://cdn.adscientificindex.com/logos/11125.png)
89
Neil Koorbanally
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,895
2,808
0.721
![](https://cdn.adscientificindex.com/logos/11125.png)
Medicinal Chemistry
Organic Chemistry
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
253,038
![South Africa](/flags/za.png)
1,084
![](https://cdn.adscientificindex.com/logos/11125.png)
90
Werner E. Van Zyl
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,893
2,275
0.584
![](https://cdn.adscientificindex.com/logos/11125.png)
Biomass
water desalination and purification
sustainable energy
clusters
dithiophosphonate ligands
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
320,198
![South Africa](/flags/za.png)
1,437
![](https://cdn.adscientificindex.com/logos/11125.png)
122
Sandile Songca
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,954
2,034
0.689
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
352,155
![South Africa](/flags/za.png)
1,601
![](https://cdn.adscientificindex.com/logos/11125.png)
135
Tricia Naicker
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,625
1,801
0.686
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
381,510
![South Africa](/flags/za.png)
1,764
![](https://cdn.adscientificindex.com/logos/11125.png)
153
Deepali Sharma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,367
1,885
0.796
![](https://cdn.adscientificindex.com/logos/11125.png)
Synthesis of nanoparticles
computational chemistry
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
393,974
![South Africa](/flags/za.png)
1,837
![](https://cdn.adscientificindex.com/logos/11125.png)
160
Bernard Omondi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,269
1,451
0.639
![](https://cdn.adscientificindex.com/logos/11125.png)
Structural chemistry
metal-organic chemistry
homogeneous catalysis and biological (antimicrobial
antifungal
anticancer) st
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
445,515
![South Africa](/flags/za.png)
2,115
![](https://cdn.adscientificindex.com/logos/11125.png)
188
Stephen Ojwach
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,918
1,064
0.555
![](https://cdn.adscientificindex.com/logos/11125.png)
Organometallic Chemistry and Catalysis
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
476,624
![South Africa](/flags/za.png)
2,271
![](https://cdn.adscientificindex.com/logos/11125.png)
203
Roshila Moodley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,740
1,424
0.818
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
597,376
![South Africa](/flags/za.png)
2,985
![](https://cdn.adscientificindex.com/logos/11125.png)
247
Matthew Akerman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,222
781
0.639
![](https://cdn.adscientificindex.com/logos/11125.png)
Structural and medicinal inorganic chemistry
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
646,929
![South Africa](/flags/za.png)
3,257
![](https://cdn.adscientificindex.com/logos/11125.png)
262
Muhammad D. Bala
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,064
454
0.427
![](https://cdn.adscientificindex.com/logos/11125.png)
Organometallic Chemistry and Homogeneous Catalysis
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
674,434
![South Africa](/flags/za.png)
3,420
![](https://cdn.adscientificindex.com/logos/11125.png)
277
Mathew K Moodley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
985
650
0.660
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
693,934
![South Africa](/flags/za.png)
3,541
![](https://cdn.adscientificindex.com/logos/11125.png)
283
PV Narayana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
933
795
0.852
![](https://cdn.adscientificindex.com/logos/11125.png)
Electrochemical sensors
biosensors
Electroanalytical methods
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
806,051
![South Africa](/flags/za.png)
4,227
![](https://cdn.adscientificindex.com/logos/11125.png)
321
Thishana Singh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
679
546
0.804