Wolfgang Parak is Professor at the Institute for Nanostructure and Solid State Physics of the University of Hamburg. He is head of the Biofunctional Nanomaterials Unit at CIC biomaGUNE, San Sebastian, Spain. He received his PhD in 1999 from Ludwig Maximilians Universität München, Germany. From 2000 to 2002, he was Postdoc at the Department of Chemistry at the University of California at Berkeley under Paul Alivisatos. From 2007 to 2017, he was Professor of Experimental Physics at the Philipps-University of Marburg, Germany.