Krystyna Jackowska Professor of Chemistry at Warsaw University, Head of Laboratory, (Emeritus, 2017). Scientific interest: electrochemistry of semiconductors, conducting polymers, biosensors. Hobby: history, touring. Paweł Krysinski Professor of Chemistry, University of Warsaw since 2004. Scientific interests: electrochemistry, bioelectrochemistry, charge transfer in biomimetic layers, superparamagnetic nanostructures. Hobby: reading, hiking.