Philippe Espeau is professor of physical chemistry at the Faculty of Pharmacy, Université Paris Cité. Since 2014, he has been a member of the ‘Vectors’ team within the Chemical and Biological Technologies for Health Unit (UTCBS), having previously led a research group on ‘Industrial Physical Chemistry of Medicines’ from 2010 to 2013. He obtained his PhD in Physical Chemistry from the University of Bordeaux in 1995, where his research focused on the characterization of phase-change materials and their assemblies using phase diagrams. He subsequently completed a postdoctoral fellowship at the Research School of Chemistry, Australian National University (Canberra), investigating the thermodynamics of alkane confinement in porous graphite. In 1998, he joined the Faculty of Pharmacy at Université Paris Descartes, where he initiated research on the solid-state properties of pharmaceutical compounds. His research focuses primarily on the physicochemical stability of pharmaceutical excipients and active ingredients, as well as on solid-state interactions. His work combines thermal analysis, powder X-ray diffraction and thermodynamic approaches to better understand and optimise pharmaceutical formulations. More recently, his research has expanded to include the development of personalised medicines using fused filament deposition 3D printing.