Donald A. Tomalia is one of the pioneers in the field of dendrimers, who is still active at the age of 80 years-old. The present contribution is a journey through his scientific contributions from the early beginning until his discovery of the poly(amidoamine), (PAMAM)-dendrimers.
Keywords: Donald Tomalia; aziridines; dendrimers; poly(amidoamine) (PAMAM); poly(ethyleneimine).