Daniel Rentsch is a senior scientist at Empa, where he has been leading NMR spectroscopy activities since 1996. With deep expertise in both solution and solid-state NMR, he is responsible for all aspects of NMR operations, including instrument maintenance, user training, and scientific collaborations. Over the years, he has co-authored research with more than 460 scientists, contributing to impactful studies across a wide range of fields. His collaborative work includes identifying environmental metabolites, investigating wastewater treatment processes, and exploring applications in fuels, hydrogen storage, CO₂ conversion, nanocellulose functionalization, and solid-state battery development. His research has led to more than 130 publications with Eawag and numerous others through internal and external partnerships. Daniel has collaborated extensively with departments across Empa and with leading institutions such as ETH Zurich, EPFL, PSI, and multiple Swiss and international universities and research centers. His contributions have significantly advanced the application of NMR in materials science and environmental research.