BEGIN:VCALENDAR VERSION:2.0 PRODID:-//ZContent.net//ZapCalLib 1.0//EN CALSCALE:GREGORIAN METHOD:PUBLISH BEGIN:VEVENT SUMMARY:Chemistry Under Microscope: From Single-Particle Photoanodes To Sin gle-Polymer Growth LOCATION:Chemistry A101 TZID:America/Denver DTSTART:20240215T160000 UID:2026-04-23-05-55-58@natsci.colostate.edu DTSTAMP:20260423T055558 Description:About the Seminar:\n\nThis presentation will have two parts. In part 1\, I will describe our recent efforts in using multi-modal optical imaging to study single particulate photoanodes for water oxidation reacti ons and our discovery of 2D inter-facet junction effects on 3D shaped semi conductor particles. In part 2\, I will describe our recent work in develo ping methods to monitor in real time the growth of single synthetic polyme rs down to single-monomer resolution and determine the microscopic sequenc es of single copolymer chains.\n\nKey references:\n\n Mao\, P. Chen* “I nter-facet junction effects on particulate photoelectrodes\,” Nature Mat er. 2022\, 21\, 331-337.\n Liu\,† K. Kubo\,† E. Wang\,† K.-S. Han\, F. Yang\, G. Chen\, F. A. Escobedo\,* G. W. Coates\,* P. Chen* “Single polymer growth dynamics\,” Science 2017\, 358\, 352-355.\n Ye\,† X. S un\,† X. Mao\,† F. Alfonso\, S. Baral\, C. Liu\, G. Coates\, P. Chen* “Optical sequencing of single synthetic polymers\,” Nature Chem. 2023\ , DOI: 10.1038/s41557-023-01363-2.\n\n \;\n\nAbout the Speaker:\n\nPen g Chen has been the Peter J.W. Debye Professor of Chemistry at Cornell Uni versity since 2013. He received his B.S. in Chemistry from Nanjing Univers ity\, China in 1997. After a year at University of California\, San Diego with Prof. Yitzhak Tor learning organic synthesis\, he moved to Stanford U niversity and did his Ph.D. with Prof. Edward Solomon in bioinorganic/phys ical inorganic chemistry. In January 2004\, he joined Prof. Sunney Xie’s group at Harvard University for postdoctoral research in single-molecule biophysics. He started his faculty appointment at Cornell University in Ju ly 2005. During his independent career\, his research group pioneered the study of single-nanoparticle catalysis\, electrocatalysis\, and photoelect rocatalysis\; of living polymerizations by single molecular catalysts\; an d of biological inorganic systems in vitro and in living cells\; using sin gle-molecule/particle imaging and manipulation methods. His current resear ch interests are on heterogeneous and homogeneous catalysis\, metal homeos tasis machineries in vitro and in living cells\, as well as energy convers ion processes in bacteria.\n\nHe has received Dreyfus New Faculty Award\, NSF Career Award\, Sloan Fellowship\, Paul Saltman Award\, Coblentz Award\ , ACS Early-Career Award in Experimental Physical Chemistry\, Excellence i n Catalysis Award from the Catalysis Society of Metro NY\, Bau Family Awar d in Inorganic Chemistry\, Chemical Pioneer Award\, etc.\, and was elected a fellow of AAAS. He has given many named lectures\, including Sessler Di stinguished Alumni Lecture at Stanford University and Brian Bent Lecture a t Columbia University\, as well as many plenary and keynote lectures at in ternational conferences. He serves on the editorial advisory boards of man y journals. Currently he is an Associate Editor for the ACS journal Chemic al &\; Biomedical Imaging. He has also served on many US and internatio nal grant review panels and was a standing member and later chairperson of the NIH Enabling Bioanalytical and Imaging Technologies (EBIT) Study Sect ion from 2017-2023. 4:00 pm END:VEVENT END:VCALENDAR