Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :1
Synthesis
Drug development and delivery
Regenerative/Biomedical Engineering
Nanomedicine
Environmental Remediation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
266
195
0.733
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Medicinal/Natural Products Chemistry
Organic Chemistry
Chemical Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
280
132
0.471
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
Catalysis
Energy
Functional surfaces
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77
76
0.987
Okechukwu Clinton Ifegwu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
266
195
0.733
Synthesis
Drug development and delivery
Regenerative/Biomedical Engineering
Nanomedicine
Environmental Remediation
Edith Ofor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
280
132
0.471
Medicinal/Natural Products Chemistry
Organic Chemistry
Chemical Analysis
Onoriode P. Avbenake
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77
76
0.987
Catalysis
Energy
Functional surfaces