The American Chemical Society (ACS) has selected Executive Vice Chancellor and Provost Paul Alivisatos, of the University of California, Berkeley as the recipient of the 2021 Priestley Medal, the Society's highest honor. Alivisatos, the Samsung Distinguished Professor in Nanoscience and Nanotechnology Research and professor of chemistry and materials science and engineering at UC Berkeley, is being recognized for "foundational contributions to the chemistry of nanoscience, development of nanocrystals as nanotechnology building blocks and leadership in the chemistry and nanoscience communities."