Wandiga Shem Oyoo was elected as an AAS Fellow in 2005. As a fellow, Wandiga Shem Oyoo contributes to the development of the Academy's strategic direction through participation in AAS activities and governance structures. This gears the Academy's vision of transforming African lives through science.
This fellow is deceased. The information provided are based on historical records and may not reflect recent developments.
Professor Wandiga was a distinguished chemist, educator, researcher, and academic leader whose contributions to chemistry, environmental science, and higher education had a lasting impact in Kenya, Africa, and the international scientific community.
He obtained his Bachelor of Science degree from Howard University in 1967, his Master of Science degree from the University of Maryland in January 1972, and his PhD from Case Western Reserve University in June 1972. Following the completion of his doctoral studies, he joined the Department of Chemistry at the University of Nairobi, where he rose through the academic ranks and was appointed Professor in 1984.
Professor Wandiga’s research focused on the design, synthesis, and characterization of metal chelates with applications in chemotherapeutic drug development and as models for understanding metal-binding dynamics in biological systems. His work also explored compounds with unique structural features, stereochemistry, optical activity, and electronic properties. Through his innovative research, he made important contributions to inorganic and medicinal chemistry.
Among his notable scientific achievements was pioneering research on the environmental behavior of DDT, which demonstrated that the pesticide’s half-life in tropical environments was significantly shorter than in temperate regions—approximately three months compared to ten years. This work contributed to a deeper understanding of environmental chemistry and the ecological impacts of chemical pollutants in different climatic conditions.
In addition to his research accomplishments, Professor Wandiga served in several senior academic leadership positions at the University of Nairobi. He was Deputy Vice-Chancellor and Principal of the College of Biological and Physical Sciences, where he played a key role in advancing research, teaching, and institutional development.
His service extended beyond the university to national, regional, and international scientific organizations. He served as Senate Member and Coordinator of Project Investment with the Ministry of Education, Chemistry Committee Coordinator for the South and East Africa Chemistry Environment Network of the Association of Science Faculties of African Universities, and Kenya’s Executive Board Representative to UNESCO. He also chaired the Department of Chemistry and led the Organizing Committee for the Second International Chemistry Conference in Africa.
Professor Wandiga was actively involved in global scientific initiatives and served as a member of the International Organizing Committee of the World Conference on Science, among numerous other professional and scientific bodies. His commitment to scientific collaboration and capacity building helped strengthen chemistry education and research across Africa.
A prolific scholar, Professor Wandiga authored more than 100 scientific publications and received numerous national and international awards and recognitions in acknowledgment of his contributions to science, education, and public service.
Through his scholarship, leadership, and dedication to advancing scientific knowledge, Professor Wandiga left an enduring legacy that continues to inspire generations of scientists, educators, and researchers in Africa and around the world.
