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Wednesday, April 29th, 2026
8:00am – 5/5 11:59pm
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Midterm Examination Period

Thursday, April 30th, 2026
10:00am – 11:00am
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PhD Thesis Defense

Noyes 153 (J. Holmes Sturdivant Lecture Hall)
Principles of Proton-coupled Electron Transfer Mediator Design
Enric Adillon, Graduate Student, Chemistry (Peters Group), Caltech,
4:00pm – 5:00pm
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Chemistry Seminar

Noyes 153 (J. Holmes Sturdivant Lecture Hall)
Finding Chemical Insight in the Maze of Mass Spectra with Machine Learning
Daniil Boiko, Ph.D., Co-Founder, onepot.AI,
Friday, May 1st, 2026
1:30pm – 2:30pm
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PhD Thesis Defense

Noyes 153 (J. Holmes Sturdivant Lecture Hall)
Template-Free Assembly of Three-Dimensional Mesostructures via Polarization Control
Natasha Reich, Graduate Student, Chemistry (Lewis Group), Caltech,
3:00pm – 4:00pm
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PhD Thesis Defense

Broad 100
Characterizing the lipid II flippase MurJ as an antibiotic target
Yancheng Evelyn Li, Graduate Student, Biochemistry & Molecular Biophysics, California Institute of Technology,
4:00pm – 5:00pm
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Inorganic-Organometallics Seminar

Noyes 147 (J. Holmes Sturdivant Lecture Hall)
Mixed valent iron in a lithium-rich metal sulfide and the effects of metal-deficiency on electrochemical anion redox
Colin Morrell, Graduate Student (See Research Group), Department of Chemistry, Caltech,
Monday, May 4th, 2026
2:00pm – 3:00pm
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Special Biochemistry Seminar - Stephen Long (Sloan Kettering)

Gates Annex B122
Structure, Ca2+-dependent regulation, and ion selectivity of the mitochondrial calcium uniporter
Stephen B. Long, Professor, Structural Biology Program, Sloan Kettering Institute,
3:45pm – 4:45pm
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Inorganic-Electrochemistry Seminar

Noyes 147 (J. Holmes Sturdivant Lecture Hall)
Structure and function of copper membrane monooxygenases
Amy Rosenzweig, Professor, Department of Chemistry, Northwestern University,
Tuesday, May 5th, 2026
10:30am – 11:30am
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PhD Thesis Defense

Noyes 153 (J. Holmes Sturdivant Lecture Hall)
Bioinspired Microfluidic Wearable Sensors for Continuous Sweat Sampling and Metabolic Monitoring
Soyoung Shin, Graduate Student, Chemical Engineering (Gao Lab), Caltech,
2:00pm – 3:00pm
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PhD Thesis Defense

Spalding Laboratory 106 (Hartley Memorial Seminar Room)
Ryen O'Meara, Graduate Student, Chemical Engineering (Arnold Lab), Caltech,
2:30pm – 3:30pm
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PhD Thesis Seminar

Crellin 151
Infrared Action Spectroscopy of Biomolecules for Planetary Science Applications
Tyler Nguyen, Graduate Student, Chemistry, Caltech,
4:00pm – 5:00pm
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Chemical Physics Seminar

Noyes 153 (J. Holmes Sturdivant Lecture Hall)
Kang-Kuen Ni, Theodore William Richards Professor of Chemistry and Professor of Physics, Departments of Chemistry and Chemical Biology and of Physics, Harvard University,
4:00pm – 6:00pm
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Presidential Distinguished Speaker Series: Martin Chalifour

Athenaeum
Wednesday, May 6th, 2026
10:00am – 11:00am
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PhD Thesis Defense

Spalding Laboratory 106 (Hartley Memorial Seminar Room)
Efficient Evaluation of Coulomb Interactions for Large-Scale Quantum Chemistry
Rui Li, Graduate Student, Chemistry (Chan Group), Caltech,
4:00pm – 5:00pm
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Environmental Science and Engineering Seminar

South Mudd 365
Global Stratospheric Methane Loss from Satellite Observations
Qiang Fu, Calvin Professor of Atmospheric and Climate Science, University of Washington,
4:00pm – 5:00pm
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Materials Science Research Lecture

Noyes 147 (J. Holmes Sturdivant Lecture Hall)
Chirality and Topology of Collective Excitations: From Altermagnets to Chiral Crystals
Chen Li, Associate Professor, Mechanical Engineering and Materials Science and Engineering, UC Riverside,
4:00pm – 5:00pm
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Organic Chemistry Seminar

Noyes 153 (J. Holmes Sturdivant Lecture Hall)
Programmable Syntheses of Polycyclic Natural Products via a Polyfunctional Intermediate Approach
Pengfei Hu, Professor, Department of Chemistry, Westlake University,
Thursday, May 7th, 2026
12:00pm – 1:30pm
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EVOxZankou Seminar

Chen 130
"The rise of ants: a lens for understanding the modern biosphere" and "Modeling time and space in the emergence of new dialects"
Joe Parker, BBE, Caltech,
Felicity Meakins, Professor, School of Languages and Cultures, University of Queensland,
4:00pm – 5:00pm
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2026 McConnell Lecture

Noyes 153 (J. Holmes Sturdivant Lecture Hall)
The Essentiality of Solution NMR Spectroscopy in the Post-AlphaFold Era
Lewis E. Kay, Professor, Department of Molecular Genetics, Biochemistry, and Chemistry, University of Toronto,
Friday, May 8th, 2026
10:15am – 11:15am
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PhD Thesis Defense

Noyes 153 (J. Holmes Sturdivant Lecture Hall)
Efficient Synthetic Transformations Enabled by Group X Catalysis
Kimberly Sharp, Graduate Student, Chemistry (Stoltz Group), Caltech,
12:00pm – 1:30pm
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Green Labs May 2026 Meeting

Monday, May 11th, 2026
9:00am – 9:01am
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Due Date for Midterm Grades

2:30pm – 3:30pm
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PhD Thesis Defense

Crellin 151
Probing Polaron Design Principles in Iron Oxides with Transient Extreme Ultraviolet Spectroscopy.
Jocelyn Mendes, Graduate Student, Chemistry (Cushing Group), Caltech,
3:00pm – 4:00pm
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PhD Thesis Defense

Noyes 153 (J. Holmes Sturdivant Lecture Hall)
Good Vibrations Only: Vibrational Imaging of Subcellular Metabolism in Health & Disease
Rahuljeet (RJ) Chadha, Graduate Student, Chemistry (Wei Group), Caltech,
3:45pm – 4:45pm
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Inorganic-Electrochemistry Seminar

Noyes 147 (J. Holmes Sturdivant Lecture Hall)
Controlling Electrocatalytic Outcomes via Speciation, Second Coordination Spheres, and Interfacial Design
Eva Nichols, Assistant Professor, Department of Chemistry, The University of British Columbia,
Wednesday, May 13th, 2026
4:00pm – 5:00pm
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Beckman Lecture

Gates Annex B122
Milan Mrksich, Henry Wade Rogers Professor of Biomedical Engineering and Chemistry, School of Engineering, Northwestern University,
4:00pm – 5:00pm
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Environmental Science and Engineering Seminar

South Mudd 365
TBD
Cecilia Martinez-Gomez, UC Berkeley,
4:00pm – 5:00pm
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Materials Science Research Lecture

Noyes 147 (J. Holmes Sturdivant Lecture Hall)
Can Grain Growth in Materials be Predicted?
Peter Voorhees, Professor, Materials Science and Engineering, Northwestern University,
Thursday, May 14th, 2026
4:00pm – 5:00pm
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Biochemistry Seminar

Gates Annex B122
Daniel Larson, Chief, Laboratory of Receptor Biology and Gene Expression; Head, Systems Biology of Gene Expression; Co-Chair, Trans-NIH Myeloid Malignancies Program, Center for Cancer Research, National Institutes of Health,
4:00pm – 5:00pm
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Chemical Engineering Seminar

Spalding Laboratory 106 (Hartley Memorial Seminar Room)
Electrochemical Direct Air Capture: In Space, On Land, and Under Sea
Yushan Yan, Henry Belin du Pont Chair of Chemical & Biomolecular Engineering, University of Delaware,
Friday, May 15th, 2026
8:00am – 5:00pm
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Last Day for Scheduling Examinations for the Degress of Doctor of Philosophy and Engineer

8:00am – 5:00pm
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Last Day for Seniors to Remove Conditions and Incompletes

9:00am – 10:00am
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PhD Thesis Defense

Spalding Laboratory 106 (Hartley Memorial Seminar Room)
Channing Klein, Graduate Student, Chemical Engineering (Manthiram Group), Caltech,
11:00am – 12:00pm
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Distinguished Materials Seminar Series

Noyes 153 (J. Holmes Sturdivant Lecture Hall)
Merging Humans and Machines: Innovation and Translation
Xuanhe Zhao, Professor, Mechanical Engineering, Massachusetts Institute of Technology,
2:00pm – 3:00pm
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PhD Thesis Defense

Noyes 153 (J. Holmes Sturdivant Lecture Hall)
Camila Suarez, Graduate Student, Chemistry (Stoltz Group), Caltech,
4:00pm – 5:00pm
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Inorganic-Organometallics Seminar

Noyes 147 (J. Holmes Sturdivant Lecture Hall)
Nathan Friede, Graduate Student (Reisman Group), Chemistry, Caltech,
Monday, May 18th, 2026
10:30am – 11:30am
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PhD Thesis Defense

Broad 100
Maria Carilli, Graduate Student, Biochemistry & Molecular Biophysics, California Institute of Technology,
3:45pm – 4:45pm
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Inorganic-Electrochemistry Seminar

Noyes 147 (J. Holmes Sturdivant Lecture Hall)
Designing for Disorder: Electrocatalytic Synthesis with Interfacial Control
Anna Wuttig, Assistant Professor, Department of Chemistry, The University of Chicago,
Tuesday, May 19th, 2026
4:00pm – 5:00pm
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Chemical Physics Seminar

Noyes 147 (J. Holmes Sturdivant Lecture Hall)
New Experimental Platforms for Molecular  Polaritonics
Marissa Weichman, Assistant Professor of Chemistry, Department of Chemistry, Princeton University,
Wednesday, May 20th, 2026
8:00am – 5:00pm
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Last Day for Dropping Courses, Exercising Pass/Fail Option, and Changing Sections

8:30am – 1:30pm
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2026 Caltech Mentoring Conference

11:00am – 12:00pm
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PhD Thesis Defense

Noyes 153 (J. Holmes Sturdivant Lecture Hall)
The Total Synthesis of Aleutianamine, (–)-Crotonolide D, and (–)-Crotonine G
Hao Yu, Graduate Student, Chemistry (Stoltz Group), Caltech,
4:00pm – 5:00pm
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Environmental Science and Engineering Seminar

South Mudd 365
TBD
Marilyn Raphael, UCLA,
4:00pm – 5:00pm
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Materials Science Research Lecture

Noyes 147 (J. Holmes Sturdivant Lecture Hall)
Interpreting short range order with electron microscopy
Andrew Minor, Professor, Materials Science and Engineering, UC Berkeley,
Thursday, May 21st, 2026
8:00am – 6/5 11:59pm
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Registration for Fall Term and Registration for Summer Graduate Research

4:00pm – 5:00pm
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Biochemistry Seminar

Gates Annex B122
Patrick Sung, Professor of Biochemistry & Structural Biology, Robert A. Welch Distinguished Chair in Chemistry, UT Health San Antonio,
Friday, May 22nd, 2026
1:00pm – 2:00pm
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PhD Thesis Defense

Braun Laboratory 152
Cai Tong Ng, Graduate Student, Biochemistry & Molecular Biophysics, California Institute of Technology,
1:30pm – 2:30pm
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PhD Thesis Defense

Chen 100
Combinatorial Signal Integration in the Dopamine Receptor System
Jan Gregrowicz, Graduate Student, Biochemistry & Molecular Biophysics, California Institute of Technology,
4:00pm – 5:00pm
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Inorganic-Organometallics Seminar

Noyes 147 (J. Holmes Sturdivant Lecture Hall)
Fernando Guerrero, Graduate Student (Agapie Group),
Tuesday, May 26th, 2026
4:00pm – 5:00pm
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Chemical Physics Seminar

Noyes 147 (J. Holmes Sturdivant Lecture Hall)
Revisiting Woodward–Hoffmann Allowed and Forbidden Electrocyclic Reactions
Kendall N. Houk, Distinguished Research Professor, Department of Chemistry and Biochemistry, University of California, Los Angeles,
Wednesday, May 27th, 2026
1:00pm – 2:00pm
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PhD Thesis Defense

Chen 130
Shawn Yoshida, Graduate Student, Biochemistry & Molecular Biophysics, California Institute of Technology,
4:00pm – 5:00pm
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Environmental Science and Engineering Seminar

South Mudd 365
TBD
Daniel McCoy,
4:00pm – 5:00pm
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W. N. Lacey Lectureship in Chemical Engineering

Gates Annex B122
From Electronics Skin to NeuroString
Zhenan Bao, K. K. Lee Professor, Senior Fellow at the Precourt Institute for Energy and Professor, by courtesy, of Materials Science and Engineering, of Chemistry, and of Bioengineering, Department of Chemical Engineering, Stanford University,
Thursday, May 28th, 2026
4:00pm – 5:00pm
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W. N. Lacey Lectureship in Chemical Engineering

Gates Annex B122
Skin-inspired Electronic Polymer Design
Zhenan Bao, K. K. Lee Professor, Senior Fellow at the Precourt Institute for Energy and Professor, by courtesy, of Materials Science and Engineering, of Chemistry, and of Bioengineering, Department of Chemical Engineering, Stanford University,
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