In the period from 20 to 23 March 2016, Karel was invited by professor Ingo Pinnau to KAUST (King Abdullah University for Science and Technology )He introduced to the audience our work via lecture titled Advances in mixed matrix membranes for gas separation: Tunable tailor-made nanoparticles and ionic liquids. During a visit, he also met and right with each other colleagues from the Department (Klaus-Viktor Peinemann, Yu Han, Bader Ghanem and Naveen Khashab). His stay was short but very interesting.