Department of Chemistry and Biochemistry
O-I-M Rotation Talks
110 Willamette Hall
December 9 & 11 | 3-5 PM

Tuesday, December 9 | 3–5 PM

Location: 110 Willamette Hall

Speakers:

• Andy Evans – DWJ Lab – 3:00–3:10
• Hannah Reynolds – Jasti Lab – 3:10–3:20
• Joseph Daddona – Brozek Lab – 3:20–3:30
• Zosia Amberger – Jasti Lab – 3:30–3:40
• Hannah Negri – Brozek Lab – 3:40–3:50
• Jessica Dickinson – DWJ Lab – 3:50–4:00
• Miles Wheaton – Harlow Lab – 4:00–4:10
• Wycliffe Misigo – DCJ Lab – 4:10–4:20
• Tracee Nguyen – Cook Lab – 4:20–4:30

Thursday, December 11 | 3–5 PM

Location: 110 Willamette Hall

Speakers:

• Reece Zonts – Hendon Lab – 3:00–3:10
• Juliette Rollins – Hendon Lab – 3:10–3:20
• Lilly Johnson – Brozek Lab – 3:20–3:30
• Sam Thompson – Brozek Lab – 3:30–3:40
• Sam Weiss – Haley/DWJ Lab – 3:40–3:50
• Brenna Bradfield – Cook Lab – 3:50–4:00
• Audrey Silvernail – Pluth Lab – 4:00–4:10
• Liz Hicklin – Rapp Lab – 4:10–4:20
• Isabella Mobley – Haley/DWJ Lab – 4:20–4:30
• Andi Fox – Rapp Lab – 4:30–4:40
• David Pearce – Hendon Lab – 4:40–4:50
• Tallie Zion – Kempler Lab – 4:50–5:00

Department of Chemistry and Biochemistry
Physical Chemistry Seminar Series – Rotation Talks

Wednesday, December 10th, 2025
2:00pm in Klamath Hall,  Room 107

Speakers

• ALEX ZEIMETZ
• JOE MEILEN
• TT ITH
• TEA BEAULIEU
• BRANDON THOMAS
• KATIE SNYDER
• GAVIN VALDEZ

Hosted by Dhiman Ray

Widom Lab featured in CAS article

Department of Chemistry and Biochemistry
Physical Chemistry Seminar Series

Professor Nicholas Borotto, University of Nevada, Reno
November 17, 2025—2:00pm
Tykeson 140

Hosted by: Jim Prell

“Trapped Ion Mobility-Assisted Sequencing and Analysis of Protein Ions”

The sequencing of intact proteins within a mass spectrometer enables the profiling of post-translational modification (PTM) crosstalk but is frequently hindered by convoluted spectra and the fact that tandem mass spectrometry (MS/MS) techniques often generate poor sequence coverages when applied to protein ions. Ion mobility spectrometry is a promising tool to overcome the complexity of these spectra by separating ions by their mass- and size-to-charge ratios. Here, we discuss the development of an activation method that when paired with trapped ion mobility spectrometry deconvolutes MS/MS spectra and improves the sequence information provided by intact protein focused workflows. Furthermore, we demonstrate the isolation and fragmentation of mobility separated product ions with the downstream quadrupole and collisional cell. This second activation step improves sequence coverage because many of the labile bonds have been depleted during the first dissociation and subsequent dissociation events are more evenly distributed throughout the product ion backbone. When these two activation steps are combined this technique generates 92% of the sequence coverage of the most effective MS/MS technique, but it accomplishes this feat in a fifth of the time and can be facilely integrated with liquid chromatographic separations. Lastly, we demonstrate that this activation technique can be utilized to elucidate the conformation of protein ions.

Chemistry and Biochemistry Department
Upcoming Thesis Defense

Quinn Valentine
Brozek Lab

Friday, November 21, 2025
4 PM in 162 Lillis Hall and via ZOOM
contact Chemistry and Biochemistry office  for Zoom link

The title of their thesis is “Synthesis, Characterization, Analysis and Design of Porous Metal-Organic Frameworks for Charge Transport and Redox Activity”

Up next: Quinn will be moving to Toronto, Canada to work on heterogeneous MOF catalysts with Prof. Korzyński as a Post-Doc.

Department of Chemistry and Biochemistry

Celebrating over 40 years of innovation in materials chemistry, education initiatives, and industry collaboration at the University of Oregon

Symposium in honor of
David C. Johnson
Reception to follow

Thursday Nov. 13, 2025
2 – 4 pm, Center for Advanced Materials Characterization in Oregon (CAMCOR)
University of Oregon, Eugene OR

Contact: derose[at]uoregon.edu

Chemistry and Biochemistry Department
Upcoming Thesis Defense

Sofia Carlson
Nolen Lab

Friday, November 14th, 2025
2:00pm in 141 Allen Hall
and via Zoom
contact Chemistry and Biochemistry office  for Zoom link

The title of her thesis is
““Molecular Regulation of Arp2/3 Complex Branch Nucleation in Assembly of Actin Networks””