Ørjan G. Martinsen received his M.Sc. and PhD in electronic engineering from the Department of Physics at the University of Oslo, with both of his theses focusing on the electrical properties of human skin. Since completing his PhD in 1995, Martinsen has held a permanent position in the same department and currently leads the electronics research section and is Coordinator of the Oslo Bioimpedance Group. As well as his work at the university, Martinsen also holds a part time research position in the Department of Clinical and Biomedical Engineering at Oslo University Hospital, his main research interest being electrical bioimpedance. With Sverre Grimnes he is the founding editor-in-chief of the Journal of Electrical Bioimpedance (www.bioimpedance.net). Arto Heiskanen received his bachelor’s degree in chemistry from the university of the Philippines in 2001. He then went on to get his master’s degree in Analytical Chemistry in 2004 and his PhD in 2009 from Lund University. He began work as a research assistant at Lund University in 2003, then went on to be an Assistant Professor and now a Senior Researcher at the Technical University of Denmark. His expertise is in electrochemistry, bioimpedance and electrophysiology for lab-on-a-chip systems.