Professor of chemical engineering, Caltech

Post Doctoral Fellow, University of Blaise Pascal

Technical University of Denmark

Professor of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi-221005.

Professor für Technische Chemie, Leibniz University of Hannover

Professor, Gazi University, Biochemical Processing and Biomaterial Research Laboratory

Instituto de Catálisis y Petroleoquímica

Associate Professor

Tehran University of Medical Sciences

Professor, Gazi University, Department of Chemistry