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DTSTART;TZID=America/New_York:20250924T150000
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SUMMARY:Fall Seminar 2025: Sharon Glotzer
DESCRIPTION:You’re invited to a seminar in Maryland Hall room 110 with Sharon Glotzer\, John W. Cahn Distinguished University Professor of Engineering and the Stuart W. Churchill Collegiate Professor of Chemical Engineering and Professor of Materials Science and Engineering at the University of Michigan\, Ann Arbor. Her seminar will take place on Wednesday\, September 24th at 3pm. \nAbstract: Entropic Bonding in Colloidal Crystals\nChemical bonds are among the most fundamental concepts in science. They describe the way in which atoms associate to form everything from molecules to materials and more\, and they have been a central paradigm of science for a century. Today\, powerful software packages that solve quantum mechanical theories of chemical bonding are in routine use to predict crystal structures. Are analogous capabilities possible for predicting colloidal crystals\, where nanoparticles play the role of atoms?  In this lecture\, we discuss a remarkable finding that has emerged from twenty years of nanoscience research: Aside from differences in length\, time and energy scales\, atoms and nanoparticles can self-assemble into identical crystal structures\, including quasicrystals and crystals with large\, complex unit cells. These colloidal crystal structures are possible even in the absence of explicit nanoparticle interactions\, when entropy is the only driving force for assembly. What sort of “bonding” describes these structures\, which emerge as the particles become crowded? We discuss these questions and present a new theory of entropic bonding that has important analogies with chemical bonding theory. With entropic bonding theory\, we can predict colloidal crystal structures from nanoparticle shape in the same way that chemical bonding theory predicts atomic crystal structures from electronic valence. \nBio: Sharon Glotzer\nSharon C. Glotzer is the John W. Cahn Distinguished University Professor of Engineering and the Stuart W. Churchill Collegiate Professor of Chemical Engineering and Professor of Materials Science and Engineering at the University of Michigan\, Ann Arbor. She also holds faculty appointments in Physics\, Applied Physics\, and Macromolecular Science and Engineering. Since July 2017\, she has served as the Anthony C. Lembke Department Chair of Chemical Engineering at the University of Michigan. \nHer research on computational assembly science and engineering aims toward the predictive materials design of colloidal and soft matter. Using computation\, geometrical concepts\, and statistical mechanics\, her research group seeks to understand the complex behavior emerging from simple rules and forces and to use that knowledge to design new materials. Glotzer’s group also develops and disseminates powerful open-source software\, including the particle simulation toolkit HOOMD-blue\, which allows for fast molecular simulation of materials on graphics processors\, the signac framework for data and workflow management\, and freud for analysis and visualization. (https://github.com/glotzerlab/) \nGlotzer received her Bachelor of Science degree in Physics from UCLA and her PhD in Physics from Boston University. She is a member of the National Academy of Sciences\, the National Academy of Engineering\, and the American Academy of Arts and Sciences. She is a Fellow of the American Association for the Advancement of Science\, the American Institute of Chemical Engineers\, the American Physical Society\, the Materials Research Society\, and the Royal Society of Chemistry. \nGlotzer is the recipient of numerous awards and honors\, including most recently the 2025 Irving Langmuir Award in Chemical Physics from the American Physical Society\, the 2025 Peter Debye Award in Physical Chemistry from the American Chemical Society\, the 2024 David Turnbull Lectureship Award from the Materials Research Society\, and the 2024 Foundations of Molecular Modeling and Simulation (FOMMS) Medal for her fundamental contributions to the development of computational methods of particle assembly. In 2023\, Glotzer was honored to be named a Clarivate Citation Laureate\, joining a cohort of 23 world-class researchers who have made significant contributions across a diverse range of fields. Other awards include the Aneesur Rahman Prize for Computational Physics from the American Physical Society in 2019\, the 2016 Alpha Chi Sigma Award from the American Institute of Chemical Engineers\, and the 2014 MRS Medal from the Materials Research Society.
URL:https://engineering.jhu.edu/materials/event/fall-seminar-2025-sharon-glotzer/
LOCATION:Maryland Hall 110
CATEGORIES:Seminar Series
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