Radu Custelcean was born and grew up in Transylvania, Romania. After completing his undergraduate and master education from Babeş-Bolyai University in 1996, he continued his studies in Chemistry at Michigan State University, where he received his Ph.D. in 2000 for work with James E. Jackson on structure and reactivity of dihydrogen-bonded crystals. After a postdoctoral training in crystal engineering at the University of Minnesota with Michael D. Ward, and a short research stint at Washington State University where he studied molecular crystals under high pressure, he started his independent career in 2003 as a research scientist at Oak Ridge National Laboratory. He received the Margaret Etter early career award from the American Crystallographic Association in 2008. His research interests are in the areas of self-assembled molecules and crystals for environmental and energy applications, separation science and technology, supramolecular chemistry, and crystal engineering. To date, he has authored more than 100 scientific publications, which have been cited more than 4,500 times.