Who is the father of nanochemistry?

The title of "father of nanochemistry" is often attributed to Jean-Marie Lehn, a French chemist who was awarded the Nobel Prize in Chemistry in 1987 for his work in supramolecular chemistry. His research laid the groundwork for understanding how molecular structures can interact and self-assemble at the nanoscale. Lehn's contributions have been pivotal in advancing the field of nanochemistry, influencing both theoretical and practical applications.