Marie Paule Pileni graduated and did her scientific carrier at Sorbonne University, Paris, (ex Université P&M Curie). She has conducted outstanding and highly interdisciplinary research over her scientific career. Her combined expertise in colloid science and in nanoscience has paved the way for several breakthroughs. Her most important discovery is the self-assembly of inorganic nanocrystals into 3D crystalline structures called colloidal crystals or supracrystals for which there are potential application ranging from nanoengineering to cancer therapy. Her research has been at the frontier of physics, chemistry, biophysics and more recently of biomedicine. She is a member of several Academies. She received a large number of awards from United States of America, Japan and Europe. She is Commander of the “Ordre National de la Légion d'Honneur ”. She has published more 450 articles with H index of 79.