1988/89 Post-doc studies at University of Davis (USA)
1989-present Professor of Chemical Engineering at the Department of Chemical Engineering. 1994/95 Sabbatical year University of Stanford (USA) and IBM Amaden Research Centre. 05/1996-09/1997 Plank Institute for Colloids and Interfaces (Berlin), European project"Amphiphile
Monolayers at Fluid Interfaces and on Solid Support"
2002/2003 Sabbatical, University of Toulouse, University of Genoa Max Plank Institute (Berlin) European Project: Nanocapsules with Functionalized Surfaces and walls.
2008/2009 Sabbatical, Institute for Cancer Research (Oslo Radium Hospital) visiting researcher. 2010 Collaboration project with Dr. Jose Toca CicBiomagune, San Sebastián,Spain in
Atomic Force Microscopy.
01/2012 Project funded by Research Council of Norway with Dr. Petras Juzenas, Department
of Radiation Biology, Institute for Cancer Research (Oslo Radium Hospital) visiting researcher.