Lehn is honorary professor at the Collège de France, Paris, where he has been prof. since 1979 and is Emeritus Prof. at the Univ. of Strasbourg. Previously he was prof. of chemistry at the Université Louis Pasteur in Strasbourg from 1970 to 1979. He shared the Nobel Prize in Chemistry in 1987 for his studies on the chemical basis of molecular recognition (the selective binding of a substrate by a receptor molecule), which also plays a fundamental role in biological processes. His work led to the definition of a new field of chemistry, which he defined as supramolecular chemistry that deals with the complex entities formed by the association of 2 or more chemical species held together by non-covalent intermolecular forces. He is author of more than 900 scientific publications and is a member of many academies, institutions and several industrial bodies. He received numerous international honours and awards.