Daniel Otzen is Professor of Nanobiotechnology at the Interdisciplinary Nanoscience Center (iNANO) at Aarhus University. Daniel Otzen has an MSc degree (1992) in Molecular Biology from Aarhus University and a PhD (1995) in protein biophysics from the laboratory of Sir Alan Fersht at Cambridge University jointly with Aarhus University. He has worked with protein stability, folding and misfolding his whole career. After two years as a research chemist (1995–997) at Novozymes A/S (which stimulated his interest in the impact of surfactants on protein stability and structure), he returned to academia, first as a post-doctorate researcher at the University of Lund (1997–2000) with Mikael Oliveberg and subsequently as Associate Professor and Professor (2000–2007) at the Department of Life and Environmental Sciences at Aalborg University. He joined iNANO as Professor in 2007. His group combines spectroscopic, calorimetric and structural techniques (scattering and electron microscopy) to address the mechanisms and thermodynamics of protein aggregation and self assembly in health and disease, folding of membranes and micelles and—recently—the activity and stability of cold-active enzymes. He has authored >350 peer-reviewed articles. He is married with two children and uses his spare time to walk the dog and keep the weeds at bay in the garden.