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May 2026

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Thursday, May 21st, 2026
2:00pm – 3:00pm
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PhD Thesis Defense

Noyes 153 (J. Holmes Sturdivant Lecture Hall)
Molecular Mechanisms of DNA Interstrand Cross-Link Repair by the Fanconi Anemia Pathway
Maria Altshuller, Graduate Student, Biochemistry & Molecular Biophysics, California Institute of Technology,
4:00pm – 5:00pm
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Biochemistry Seminar

Gates Annex B122
BRCA1-BARD1 Tumor Suppressor Complex in Homologous Recombination Licensing
Patrick Sung, Professor of Biochemistry & Structural Biology, Robert A. Welch Distinguished Chair in Chemistry, UT Health San Antonio,
Friday, May 22nd, 2026
10:30am – 11:30am
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PhD Thesis Defense

Spalding Laboratory 106 (Hartley Memorial Seminar Room)
Artificial Intelligence Methods for Enzyme Engineering
Jason Yang, Graduate Student, Chemical Engineering (Arnold Lab), Caltech,
1:00pm – 2:00pm
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PhD Thesis Defense

Braun Laboratory 152
Optimizing Treslin-MTBP for cryo-EM analysis
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)
Molecular Quantum Bits as Ion Detectors
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,
4:00pm – 5:00pm
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Distinguished Materials Seminar Series

Noyes 153 (J. Holmes Sturdivant Lecture Hall)
Frustration in Quantum Materials
Stephen Wilson, Professor, Materials Science, UC Santa Barbara,
4:00pm – 5:00pm
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MedE Distinquished Seminar Series, Xiaodong Chen

Keck 142
Electrochemomics profiling metabolic dynamics in biofluids
Xiaodong Chen, Distinguished Professor in Materials Science and Engineering, with joint and courtesy appointments in Electrical and Electronic Engineering, Chemistry, and Medicine, Nanyang Technological University (NTU),
Wednesday, May 27th, 2026
10:30am – 11:30am
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PhD Thesis Defense

Noyes 153 (J. Holmes Sturdivant Lecture Hall)
Reductive C-C Bond Construction Strategies by Samarium and Nickel Catalysis
Chungkeun Shin, Graduate Student, Chemistry (Reisman Group), Caltech,
1:00pm – 2:00pm
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PhD Thesis Defense

Chen 130
Decoding the dynamics and regulation of endogenous transcription factor hubs
Shawn Yoshida, Graduate Student, Biochemistry & Molecular Biophysics, California Institute of Technology,
1:30pm – 2:30pm
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PhD Thesis Defense

Noyes 153 (J. Holmes Sturdivant Lecture Hall)
Development of Strategies for Nickel-Catalyzed Asymmetric Reductive Cross-Couplings
Angel Hernandez-Mejias, Graduate Student, Chemistry (Reisman Group), Caltech,
4:00pm – 5:00pm
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Environmental Science and Engineering Seminar

South Mudd 365
Microbial Niches Govern Nâ‚‚O Cycling in Marine Oxygen Minimum Zones
Daniel McCoy, Postdoctoral Fellow, Biosphere Sciences & Engineering Global Ecology, Carnegie Science,
4:00pm – 5:00pm
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Materials Science Research Lecture

Noyes 147 (J. Holmes Sturdivant Lecture Hall)
Tuning Order and Disorder in Itinerant Magnetic Systems: Case of Intercalated Transition Metal Dichalcogenides
Efrain E. Rodriguez, Professor, Chemistry and Biochemistry, University of Maryland,
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
1:00pm – 2:00pm
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PhD Thesis Defense

Noyes 153 (J. Holmes Sturdivant Lecture Hall)
Electron Spin-based Quantum Sensing in Biomolecular Systems
Christian Totoiu, Graduate Student, Chemical Engineering (Hadt Lab), Caltech,
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,
Friday, May 29th, 2026
12:00am – 5/30 12:00am
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Last Day of Classes for Seniors and Graduate Students

8:00am – 5:00pm
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Last Day for Presenting Theses for the Degrees of Doctor of Philosophy and Engineer

8:00am – 9:00am
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PhD Thesis Defense

Chen 100
Computational Design of Protein-Based Biosensors for Nicotine
Nick Friesenhahn, Graduate Student, Chemical Engineering (Mayo Lab), Caltech,
1:30pm – 2:30pm
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PhD Thesis Defense

Noyes 153 (J. Holmes Sturdivant Lecture Hall)
Engineering Ultrasonic Reporters for Imaging Various Cellular Enzyme Activity
Jee Won Yang, Graduate Student, Chemical Engineering (Shapiro Group), Caltech,
Saturday, May 30th, 2026
8:00am – Ongoing
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Study Period for Seniors and Graduate Students