Development of microtiter plate-based method for the determination of the MIC of
antimycetomal agents against Madurella mycetomatis. 2nd Workshop, Research
Network Natural Products against Neglected Diseases (ResNet NPND), Rio de
Janeiro, Brazil, 25th-28th November, 2014.
• Current state and future perspectives of natural products-based drug discovery in
Africa. 61st International Conference of the Society of Medicinal Plant and Natural
Product Research, Münster, Germany, 1st – 5th September, 2013.
• Discovery of bioactive natural compounds against neglected tropical diseases,
Institute of Biochemistry, Saarland University, Saarbrucken, Germany, 6th
September, 2010.
• Natural products as a potential source of bioactive candidates against neglected
tropical diseases, Helmholtz-Institute for Pharmaceutical Research Saarland,
Saarbrucken, Germany, 17th September, 2010.
• Phytomedicines safety and pharmacovigilance: some important considerations.
57th International Congress & Annual Meeting of the Society for Medicinal Plant
and Natural Product Research, Geneva, Switzerland, August 2009.
• Some recent antimalarial hits, Research Initiative on Traditional Antimalarial
Methods (RITAM) Green College, Oxford, UK, October 2006.
• Has traditional medicine anything to offer orthodox medicine? The 137th British
Pharmaceutical Conference. Organized by the Royal Pharmaceutical Society of
Great Britain, Birmingham, U.K, September 2000.
• Bioactive compounds from Sudanese flora. Department of Medicinal Chemistry,
the Royal Danish School of Pharmacy, Copenhagen, Denmark, April 1997.
• Sudanese medicinal plants as a source of novel bioactive molecules. Department of
Pharmacognosy, the Royal Danish School of Pharmacy, Copenhagen, Denmark,
November 1996.
• The bewildering diversity of secondary metabolites. Department of Medicinal
Chemistry, the Royal Danish School of Pharmacy, Copenhagen, Denmark,
September 1996.
• Goitrogenic agents of pearl millet (Pennisetum americanum). Department of
Nutrition, University of Uppsala. Uppsala, Sweden, March, 1991.
• New Approaches towards chemical characterization of gum Arabic. International
ZDS Seminar on Gum Arabic. Solingen, Germany, June 1988.
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• Phytochemical research on Sudanese Plants: A critical overview. Department of
Structural Chemistry, Faculty of Chemistry, Ruhr University. Bochum, Germany,
April 1988.
• Concluding remarks and final address. The 2nd International Workshop on Isolation
and Structure Elucidation of Natural Products Using Spectroscopic Techniques.
Karachi, Pakistan, January 1987.
• Recent methods of detection and analysis of narcotics of plant origin with special
emphasis on cannabinoids. Seminar organized by the Department of Biological
Sciences, Old Dominion University. Virginia, USA, October 1986.
• Prenylated flavonoids from African Tephrosieae. 1st Conference of the Chemistry
Sub-network of the African Network of Scientific and Technological Institutions
(ANSTI). Addis Ababa, Ethiopia, May 1986.
• Cannabis and amphetamine trafficking in Sudan. United Nations Expert Group
Meeting on Recommended Methods of testing Cannabis and
Amphetamine/Methamphetamine Analysis. Kuala Lumpur, Malaysia, September
1986.
• The Chemistry of the Burseraceae. The Phytochemical Society of Europe
International Symposium on Chemistry and Taxonomy of the Rutales. Glasgow,
Scotland, 1982.