– Faculty of Chemical Technology “D.I.Mendeleev”, Moscow, 1979/1m

– Russian Academy of Science, Institute of Electrochemistry “A.N.Frumkin”, Moscow, 1991/1m

– Department of polymer chemistry, University of Tashkent, Uzbekistan, 1991/1m

– TUBITAK, Marmara Research Center, Institute for Basic Sciences, Istanbul- Gebze, Turkey, 1993/2m

– Center for Solid State Science, Arizona State University, Arizona, U.S.A, 1994/3m

– Middle East Technical University (METU), Department of Chemistry, Ankara, Turkey, 1995/1m

– Conte Center for Polymer Research, University of Massachusetts at Amherst, MA U.S.A., 1996/1m, 1998/1m, 2000/1m

– Research Institut for Genetic Engineering and Biotechnology, Istanbul-Gebze, Turkey, 2004/1m, 2005/1m