Dr. Johannes C. Jansen was born in the Netherlands and obtained his Master’s (1990) and PhD degree (1996) in the Department of Polymer Technology of the Faculty of Chemical Technology and Materials Science of the TU Delft (Delft, NL). He then held various positions at DSM Resins (Zwolle, NL, 1997); the Agrotechnological Research Institute, former ATO-DLO (Wageningen, NL, 1997–1999); and the Institute of Macromolecular Chemistry, former ICM-CNR (Milan, IT, 2000–2001), where he then got a permanent position in December 2001. Shortly after that, he moved to the Institute on Membrane Technology (CNR-ITM in Rende, IT), where he has been working since then as a researcher first, senior researcher from 2019, and research director from 2021. He was the coordinator of the EU’s 7th Framework project DoubleNanoMem, and was PI of a number of national and international public and industrial research projects. He currently leads a group that mainly focuses on polymeric and mixed-matrix membranes for gas and vapor separation and other activities on membrane preparation and characterization in general, as well as water treatment.