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Priestley Medal Award and Board Open Meeting

San Diego Convention Center, Room 6A/B

Sunday, March 23, 2025

4:00 PM � 5:30 PM PT

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Join the ACS Board of Directors Open Meeting as they host 2025 Priestley Medalist Dr. Frances H. Arnold.

Frances Arnold is the Linus Pauling Professor of Chemical Engineering, Bioengineering, and Biochemistry at the California Institute of Technology and the first American woman to receive the Nobel Prize in Chemistry (2018). Arnold pioneered directed enzyme evolution and has used directed evolution to optimize biocatalysts for applications in alternative energy, chemicals, and medicine. Her methods are used throughout the world to engineer enzymes and other proteins. The Arnold lab now focuses on expanding DNA-encoded chemistry by discovery and optimization of new-to-nature enzyme activities and developing methods for AI and machine-learning-guided enzyme evolution and discovery.

Her research has been recognized with numerous awards, including the Charles Stark Draper Prize of the National Academy of Engineering (2011), the National Medal of Technology and Innovation (2011), and the Millennium Technology Prize (2016). She is an elected member of the National Academies of Science, Medicine, and Engineering and was appointed to the Pontifical Academy of Sciences by Pope Francis in 2019. Arnold served as external co-chair of the President’s Council of Advisors on Science and Technology (PCAST) for President Joe Biden, from 2021 to 2025. She earned her BS in Mechanical and Aerospace Engineering from Princeton University and PhD in Chemical Engineering from the University of California, Berkeley.

Dr. Arnold will be recognized for contributions to the development of directed evolution as a method for chemical and biological design and will be officially honored as the 2025 Priestley Medalist on Tuesday, March 25 during the ACS National Awards Banquet and Ceremony at the Manchester Grand Hyatt San Diego.