His research focuses on the history of the biomedical sciences in the th century. His book, La fabrique d’une nouvelle science: La biologie molÈculaire ‡ l’‚ge atomique, 1945–1964 explores the emergence of molecular biology as new scientific discipline and professional identity in the Atomic Age. It received the Henry E. Sigerist prize 2006. He is currently working on a new book project on collections and collectors in th century life sciences. He has published on the history of international scientific cooperation during the Cold War, the interactions between experimental science and clinical medicine, the transformations of the pharmaceutical industry, the development of scientific instrumentation, the role of collective memory, and the relationships between science and society.